1. 使用技术
1.1 后端
- SpringCloud+SpringBoot+maven2+web+MySQL+xml+pagehelper+lombok+jwt+ras+BaseResult
- Eureka 注册中心 + Eureka 客户端+Zuul网关 + 过滤器
1.2 前端
- vue渐进式JavaScript框架
2. 需完成功能
2.1 功能1：用户登录
前端代码
api.js
/** ajax axios */
import axios from 'axios'
import { Message } from 'element-ui'
/** axios 基本项设置 */
axios.defaults.baseURL = 'http://localhost:10010/api'
axios.defaults.timeout = 3000
// 全局ajax错误处理
// axios.interceptors.response.use(response => {
// return response
// }, error => {
// Message.error(error.message)
// return Promise.reject(error)
// })
/** 发送请求 */
export function login (user) {
return axios.post('/userservice/user/login', user)
}
export function FindClassesForPageNum (ClassesPi) {
return axios.get('/studentservice/classes/FindClassesForPageNum',{
params:ClassesPi
} )
}
export function Findteacher1list (t1) {
return axios.get('/studentservice/classes/Findteacher1list/' +t1)
}
export function Findteacher2list (t2) {
return axios.get('/studentservice/classes/Findteacher2list/' +t2)
}
export function Findteacher3list (t3) {
return axios.get('/studentservice/classes/Findteacher3list/' + t3)
}
export function addClasses (classes) {
return axios.post('/studentservice/classes/addClasses', classes)
}
export function DeleteClassesByCid (ids) {
return axios.delete('/studentservice/classes/DeleteClassesByCid/' + ids)
}
export function FindByClassesByCid (cid) {
return axios.get('/studentservice/classes/FindByClassesByCid/' + cid)
}
export function UpdateClasses (classes) {
return axios.put('/studentservice/classes/UpdateClasses', classes)
}
export function FindStudentListForPageNum (studentPi) {
return axios.get('/studentservice/student/FindStudentListForPageNum', {
params:studentPi
})
}
export function Findclasses () {
return axios.get('/studentservice/student/Findclasses')
}
export function addStudent (student) {
return axios.post('/studentservice/student/addStudent', student)
}
export function deleteStudentBysid (ids) {
return axios.delete('/studentservice/student/deleteStudentBysid/'+ids)
}
export function FindStudent (sid) {
return axios.get('/studentservice/student/FindStudent/'+sid)
}
<template>
<div class="login">
<el-card class="login-box-card">
<div slot="header" class="clearfix">
<el-button type="text" icon="el-icon-s-home">综合案例</el-button>
</div>
<div>
<el-form ref="loginFrom" :model="LoginUser" label-width="80px">
<el-form-item label="用户名">
<el-input v-model="LoginUser.user_name"></el-input>
</el-form-item>
<el-form-item label="密码">
<el-input show-password v-model="LoginUser.password"></el-input>
</el-form-item>
<el-form-item>
<el-button type="primary" @click="login">登录</el-button>
</el-form-item>
</el-form>
</div>
</el-card>
</div>
</template>
<script>
import { login } from '../api'
export default {
data() {
return {
LoginUser: {},
errorMsg:''
}
},
methods: {
async login() {
let { data } = await login(this.LoginUser)
if(data.code == 1){
this.$message.success(data.message)
this.$router.push('/home')
}else{
this.$message.error(data.message)
}
}
},
}
</script>
<style>
.login-box-card {
width: 480px;
}
.login {
height: 100%;
display: flex; /* css3 新取值，允许居中 */
align-items: center; /* 上下居中*/
justify-content: center; /* 左右居中 */
}
</style>
后端代码
- pom依赖
<dependencies>
<!--web起步依赖-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- Eureka客户端 -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<!--通用mapper起步依赖-->
<dependency>
<groupId>tk.mybatis</groupId>
<artifactId>mapper-spring-boot-starter</artifactId>
<version>2.0.4</version>
</dependency>
<!--MySQL数据库驱动-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>com.czxy.cloud</groupId>
<artifactId>Exam_common</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
</dependencies>
- application.yml文件
server:
port: 9090
spring:
datasource:
driver-class-name: com.mysql.jdbc.Driver
url: jdbc:mysql://localhost:3306/cloud_db?useUnicode=true&characterEncoding=UTF-8&serverTimezone=UTC
username: root
password: 947411
application:
name: userservice
eureka:
client:
service-url:
defaultZone: http://localhost:10086/eureka/
- UserApplication启动类
package com.czxy;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import tk.mybatis.spring.annotation.MapperScan;
@SpringBootApplication
@EnableEurekaClient
@MapperScan(basePackages = "com.czxy.mapper")
public class UserApplicatioon {
public static void main(String[] args) {
SpringApplication.run(UserApplicatioon.class,args);
}
}
- domain对象类
package com.czxy.domain;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import javax.persistence.Id;
import javax.persistence.Table;
@Table(name = "tb_user")
@Data
@AllArgsConstructor
@NoArgsConstructor
public class User {
@Id
private Integer id;
private String user_name;
private String password;
}
- mapper 通用mapper类
package com.czxy.mapper;
import com.czxy.domain.User;
import tk.mybatis.mapper.common.Mapper;
public interface UserMapper extends Mapper<User> {
}
- service
package com.czxy.service;
import com.czxy.domain.User;
public interface UserService {
/**
* 登录用户
* @param user
* @return
*/
User login(User user);
}
package com.czxy.service.impl;
import com.czxy.domain.User;
import com.czxy.mapper.UserMapper;
import com.czxy.service.UserService;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import tk.mybatis.mapper.entity.Example;
import javax.annotation.Resource;
@Service
@Transactional
public class UserServiceImpl implements UserService {
@Resource
private UserMapper userMapper;
/**
* 登录用户
* @param user
* @return
*/
@Override
public User login(User user) {
Example example = new Example(User.class);
Example.Criteria c = example.createCriteria();
c.andEqualTo("user_name",user.getUser_name());
c.andEqualTo("password",user.getPassword());
User bean = userMapper.selectOneByExample(example);
if (bean==null){
return null;
}
return bean;
}
}
- controller 控制类
package com.czxy.controller;
import com.czxy.domain.User;
import com.czxy.service.UserService;
import com.czxy.vo.BaseResult;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.annotation.Resource;
@RestController
@RequestMapping("/user")
public class UserController {
// private static final String priKeyPath = "D:\\ras\\ras.pri";
@Resource
private UserService userService;
/**
* 登录用户
* @param user
* @return
*/
@PostMapping("/login")
public BaseResult login(@RequestBody User user){
//如果登录成功,将数据存入私钥中
User loginUser = userService.login(user);
if (loginUser!=null){
// String token = JwtUtils.generateToken(loginUser, 60 * 5, RasUtils.getPrivateKey(priKeyPath));
return BaseResult.ok("登录成功",loginUser);
}else{
return BaseResult.error("用户名或密码错误");
}
}
}
2.2 功能2：布局
<template>
<div>
<el-container>
<el-header>综合案例</el-header>
<el-container>
<el-aside width="200px">
<el-menu default-active="2" class="el-menu-vertical-demo" router>
<el-submenu index="1_">
<template slot="title">
<i class="el-icon-location"></i>
<span>班级管理</span>
</template>
<el-menu-item-group>
<el-menu-item index="/addClasses">添加班级</el-menu-item>
<el-menu-item index="/classesList">班级列表</el-menu-item>
</el-menu-item-group>
</el-submenu>
<el-submenu index="2_">
<template slot="title">
<i class="el-icon-location"></i>
<span>学生管理</span>
</template>
<el-menu-item-group>
<el-menu-item index="/addStudent">添加学生</el-menu-item>
<el-menu-item index="/studentList">学生列表</el-menu-item>
</el-menu-item-group>
</el-submenu>
</el-menu>
</el-aside>
<el-main>
<router-view></router-view>
</el-main>
</el-container>
</el-container>
</div>
</template>
<script>
export default {
}
</script>
<style>
.el-header, .el-footer {
background-color: #B3C0D1;
color: #333;
text-align: center;
line-height: 60px;
}
</style>
2.3 功能3：添加班级
前端代码
<template>
<div>
<el-breadcrumb separator="/">
<el-breadcrumb-item :to="{ path: '/classesList' }">首页</el-breadcrumb-item>
<el-breadcrumb-item ><a href="/">班级管理</a></el-breadcrumb-item>
<el-breadcrumb-item ><a href="/addClasses">添加班级</a></el-breadcrumb-item>
</el-breadcrumb>
<br/>
<div>
<el-card class="classes-box-card">
<div>
<el-form ref="classesFrom" :model="classes" label-width="100px">
<el-form-item label="班级名称">
<el-input v-model="classes.cname"></el-input>
</el-form-item>
<el-form-item label="授课老师">
<el-select v-model="classes.teacher1_id" placeholder="请选择授课老师">
<el-option v-for="(t1, index1) in teacher1list" :key="index1" :value="t1.tid" :label="t1.tname"></el-option>
</el-select>
</el-form-item>
<el-form-item label="助理老师">
<el-select v-model="classes.teacher2_id" placeholder="请选择助理老师">
<el-option v-for="(t2, index2) in teacher2list" :key="index2" :value="t2.tid" :label="t2.tname"></el-option>
</el-select>
</el-form-item>
<el-form-item label="辅导员老师">
<el-select v-model="classes.teacher3_id" placeholder="请选择辅导员老师">
<el-option v-for="(t3, index3) in teacher3list" :key="index3" :value="t3.tid" :label="t3.tname"></el-option>
</el-select>
</el-form-item>
<el-form-item>
<el-button type="primary" @click="addClasses">添加班级</el-button>
</el-form-item>
</el-form>
</div>
</el-card>
</div>
</div>
</template>
<script>
import { Findteacher1list, Findteacher2list, Findteacher3list, addClasses} from '../../api'
import { async } from 'q'
export default {
data() {
return {
classes: {},
teacher1list:[],
teacher2list:[],
teacher3list:[],
t1:1,
t2:2,
t3:3
}
},
created() {
this.Findteacher1list()
this.Findteacher2list()
this.Findteacher3list()
},
methods: {
async Findteacher1list() {
let { data } = await Findteacher1list(this.t1)
this.teacher1list = data.data
},
async Findteacher2list() {
let { data } = await Findteacher2list(this.t2)
this.teacher2list = data.data
},
async Findteacher3list() {
let { data } = await Findteacher3list(this.t3)
this.teacher3list = data.data
},
async addClasses() {
let { data } = await addClasses(this.classes)
if (data.code == 1) {
this.$message.success(data.message)
this.$router.push('/classesList')
}
}
},
}
</script>
<style>
.classes-box-card {
width: 480px;
}
</style>
后端代码
- domain 对象类
package com.czxy.domain;
import javax.persistence.Id;
import javax.persistence.Table;
import java.io.Serializable;
@Table(name = "tb_class")
public class Classes implements Serializable {
@Id
private Integer cid;
private String cname;
private Integer teacher1_id;
private Teacher teacher1;
private Integer teacher2_id;
private Teacher teacher2;
private Integer teacher3_id;
private Teacher teacher3;
@Override
public String toString() {
return "Classes{" +
"cid=" + cid +
", cname='" + cname + '\'' +
", teacher1_id=" + teacher1_id +
", teacher1=" + teacher1 +
", teacher2_id=" + teacher2_id +
", teacher2=" + teacher2 +
", teacher3_id=" + teacher3_id +
", teacher3=" + teacher3 +
'}';
}
public Classes() {
}
public Integer getCid() {
return cid;
}
public void setCid(Integer cid) {
this.cid = cid;
}
public String getCname() {
return cname;
}
public void setCname(String cname) {
this.cname = cname;
}
public Integer getTeacher1_id() {
return teacher1_id;
}
public void setTeacher1_id(Integer teacher1_id) {
this.teacher1_id = teacher1_id;
}
public Teacher getTeacher1() {
return teacher1;
}
public void setTeacher1(Teacher teacher1) {
this.teacher1 = teacher1;
}
public Integer getTeacher2_id() {
return teacher2_id;
}
public void setTeacher2_id(Integer teacher2_id) {
this.teacher2_id = teacher2_id;
}
public Teacher getTeacher2() {
return teacher2;
}
public void setTeacher2(Teacher teacher2) {
this.teacher2 = teacher2;
}
public Integer getTeacher3_id() {
return teacher3_id;
}
public void setTeacher3_id(Integer teacher3_id) {
this.teacher3_id = teacher3_id;
}
public Teacher getTeacher3() {
return teacher3;
}
public void setTeacher3(Teacher teacher3) {
this.teacher3 = teacher3;
}
}
package com.czxy.domain;
import javax.persistence.Id;
import javax.persistence.Table;
import java.io.Serializable;
@Table(name = "tb_teacher")
public class Teacher implements Serializable{
@Id
private Integer tid;
private String tname;
private Integer type;
@Override
public String toString() {
return "Teacher{" +
"tid=" + tid +
", tname='" + tname + '\'' +
", type=" + type +
'}';
}
public Integer getTid() {
return tid;
}
public void setTid(Integer tid) {
this.tid = tid;
}
public String getTname() {
return tname;
}
public void setTname(String tname) {
this.tname = tname;
}
public Integer getType() {
return type;
}
public void setType(Integer type) {
this.type = type;
}
public Teacher(Integer tid, String tname, Integer type) {
this.tid = tid;
this.tname = tname;
this.type = type;
}
public Teacher() {
}
}
- mapper 配置类
package com.czxy.mapper;
import com.czxy.domain.Classes;
import com.czxy.domain.ClassesPi;
import org.apache.ibatis.annotations.*;
import tk.mybatis.mapper.common.Mapper;
import java.util.List;
public interface ClassesMapper extends Mapper<Classes> {}
package com.czxy.mapper;
import com.czxy.domain.Teacher;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Result;
import org.apache.ibatis.annotations.Results;
import org.apache.ibatis.annotations.Select;
import tk.mybatis.mapper.common.Mapper;
import java.util.List;
public interface TeacherMapper extends Mapper<Teacher> {}
- service和serviceImpl
package com.czxy.service;
import com.czxy.domain.Classes;
public interface ClassesService {
/**
* 添加班级
* @param classes
* @return
*/
void addClasses(Classes classes);}
package com.czxy.service.impl;
import com.czxy.domain.Classes;
import com.czxy.mapper.ClassesMapper;
import com.czxy.mapper.StudentMapper;
import com.czxy.mapper.TeacherMapper;
import com.czxy.service.ClassesService;
import javax.annotation.Resource;
@Service
@Transactional
public class ClassesServiceImpl implements ClassesService {
@Resource
private ClassesMapper classesMapper;
@Resource
private TeacherMapper teacherMapper;
@Resource
private StudentMapper studentMapper;
/**
* 添加班级
* @param classes
* @return
*/
@PostMapping("/addClasses")
public BaseResult addClasses(@RequestBody Classes classes){
classesService.addClasses(classes);
return BaseResult.ok("添加成功");
}
}
- controller 控制器
package com.czxy.controller;
import com.czxy.domain.Classes;
import javax.annotation.Resource;
@RestController
@RequestMapping("/classes")
public class ClassesController {
@Resource
private ClassesService classesService;
/**
* 添加班级
* @param classes
* @return
*/
@PostMapping("/addClasses")
public BaseResult addClasses(@RequestBody Classes classes){
classesService.addClasses(classes);
return BaseResult.ok("添加成功");
}
2.4 功能4：班级列表（基本列表 + 分页 + 条件）
前端代码
<template>
<div>
<el-breadcrumb separator="/">
<el-breadcrumb-item :to="{ path: '/classesList' }">首页</el-breadcrumb-item>
<el-breadcrumb-item ><a href="/">班级管理</a></el-breadcrumb-item>
<el-breadcrumb-item ><a href="/classList">班级列表</a></el-breadcrumb-item>
</el-breadcrumb>
<br/>
<el-card class="box-card">
<div>
<div slot="header" >
<el-form :inline="true" :model="ClassesPi" size="mini" class="demo-form-inline">
<el-form-item label="班级名称">
<el-input v-model="ClassesPi.cname" clearable placeholder="请输入班级名称"></el-input>
</el-form-item>
<el-form-item>
<el-button type="primary" @click="FindClassesForPageNum">查询</el-button>
</el-form-item>
</el-form>
</div>
<el-table :data="pageinfo.list" ref="classesTable" style="width: 100%" @>
<el-table-column type="selection" width="55"></el-table-column>
<el-table-column prop="cname" label="班级名称" ></el-table-column>
<el-table-column label="授课老师名称">
<template slot-scope="scope">{{ scope.row.teacher1.tname }}</template>
</el-table-column>
<el-table-column label="助理老师名称" >
<template slot-scope="scope">{{ scope.row.teacher2.tname }}</template>
</el-table-column>
<el-table-column label="辅导员老师名称" >
<template slot-scope="scope">{{ scope.row.teacher3.tname }}</template>
</el-table-column>
<el-table-column fixed="right" label="操作" prop="cid">
<template slot-scope="scope">
<el-button @click="FindByClassesByCid(scope.row.cid)" type="primary" plain icon="el-icon-edit" size="small">编辑</el-button>
</template>
</el-table-column>
</el-table>
<el-table-column>
<el-button @click="DeleteClassesByCidFn" type="danger" icon="el-icon-delete" >批量删除</el-button>
</el-table-column>
<div align="center">
<el-pagination
@size-change="handleSizeChange"
@current-change="handleCurrentChange"
:current-page="pageinfo.pageNum"
:page-sizes="[2, 3, 5, 10]"
:page-size="pageinfo.pageSize"
layout="total, sizes, prev, pager, next, jumper"
:total="pageinfo.total">
</el-pagination>
</div>
</div>
</el-card>
</div>
</template>
<script>
import { FindClassesForPageNum } from '../../api'
export default {
data() {
return {
pageinfo:{},
ClassesPi:{
pageNum:1,
pageSize:2,
cname:'',
}
}
},
created() {
this.FindClassesForPageNum()
},
methods: {
async FindClassesForPageNum() {
let { data } = await FindClassesForPageNum(this.ClassesPi)
if(data.code == 1){
this.pageinfo = data.data
}
},
handleSizeChange(val) {
this.ClassesPi.pageSize = 1
this.ClassesPi.pageSize = val
this.FindClassesForPageNum()
},
handleCurrentChange(val) {
this.ClassesPi.pageNum = val
this.FindClassesForPageNum()
}
}
}
</script>
<style>
</style>
后端代码
- controller 控制器
package com.czxy.controller;
import com.czxy.domain.Classes;
import com.czxy.domain.ClassesPi;
import com.czxy.service.ClassesService;
import com.czxy.vo.BaseResult;
import com.github.pagehelper.PageInfo;
import javax.annotation.Resource;
import java.util.List;
@RestController
@RequestMapping("/classes")
public class ClassesController {
@Resource
private ClassesService classesService;
/**
* 添加班级
* @param classes
* @return
*/
@PostMapping("/addClasses")
public BaseResult addClasses(@RequestBody Classes classes){
classesService.addClasses(classes);
return BaseResult.ok("添加成功");
}
/**
* 查询班级列表(分页+条件)
* @param
* @return
*/
@GetMapping("/FindClassesForPageNum")
public BaseResult FindClassesForPageNum( ClassesPi classesPi){
PageInfo<Classes> pi = classesService.FindClassesForPageNum(classesPi);
for (Classes classes : pi.getList()) {
System.out.println(classes.toString());
}
return BaseResult.ok("查询成功",pi);
}
}
- service 和 serviceImpl
package com.czxy.service;
import com.czxy.domain.Classes;
import com.czxy.domain.ClassesPi;
import com.github.pagehelper.PageInfo;
import java.util.List;
public interface ClassesService {
/**
* 添加班级
* @param classes
* @return
*/
void addClasses(Classes classes);
/**
* 查询班级列表(分页+条件)
* @param
* @param classesPi
* @return
*/
PageInfo<Classes> FindClassesForPageNum(ClassesPi classesPi);
}
- mapper 配置类
package com.czxy.mapper;
import com.czxy.domain.Classes;
import com.czxy.domain.ClassesPi;
import org.apache.ibatis.annotations.*;
import tk.mybatis.mapper.common.Mapper;
import java.util.List;
public interface ClassesMapper extends Mapper<Classes> {
/**
* 查询班级列表(分页+条件)
* @param
* @param classesPi
* @return
*/
@Select(" <script> select * from tb_class where 1=1 "+
" <if test = \" classesPi.cname != null and classesPi.cname != '' \"> and cname like #{classesPi.cname} </if> "+
"</script>")
@Results(id = "c1",value = {
@Result(property = "cid",column = "cid"),
@Result(property = "cname",column = "cname"),
@Result(property = "teacher1_id",column = "teacher1_id"),
@Result(property = "teacher2_id",column = "teacher2_id"),
@Result(property = "teacher3_id",column = "teacher3_id"),
@Result(property = "teacher1",column = "teacher1_id",one = @One(select = "com.czxy.mapper.TeacherMapper.selectByID")),
@Result(property = "teacher2",column = "teacher2_id",one = @One(select = "com.czxy.mapper.TeacherMapper.selectByID")),
@Result(property = "teacher3",column = "teacher3_id",one = @One(select = "com.czxy.mapper.TeacherMapper.selectByID"))
})
List<Classes> FindClassesForPageNum(@Param("classesPi") ClassesPi classesPi);
}
2.5 功能5：批量删除班级
前段代码
<template>
<div>
<el-breadcrumb separator="/">
<el-breadcrumb-item :to="{ path: '/classesList' }">首页</el-breadcrumb-item>
<el-breadcrumb-item ><a href="/">班级管理</a></el-breadcrumb-item>
<el-breadcrumb-item ><a href="/classList">班级列表</a></el-breadcrumb-item>
</el-breadcrumb>
<br/>
<el-card class="box-card">
<div>
<div slot="header" >
<el-form :inline="true" :model="ClassesPi" size="mini" class="demo-form-inline">
<el-form-item label="班级名称">
<el-input v-model="ClassesPi.cname" clearable placeholder="请输入班级名称"></el-input>
</el-form-item>
<el-form-item>
<el-button type="primary" @click="FindClassesForPageNum">查询</el-button>
</el-form-item>
</el-form>
</div>
<el-table :data="pageinfo.list" ref="classesTable" style="width: 100%" @>
<el-table-column type="selection" width="55"></el-table-column>
<el-table-column prop="cname" label="班级名称" ></el-table-column>
<el-table-column label="授课老师名称">
<template slot-scope="scope">{{ scope.row.teacher1.tname }}</template>
</el-table-column>
<el-table-column label="助理老师名称" >
<template slot-scope="scope">{{ scope.row.teacher2.tname }}</template>
</el-table-column>
<el-table-column label="辅导员老师名称" >
<template slot-scope="scope">{{ scope.row.teacher3.tname }}</template>
</el-table-column>
<el-table-column fixed="right" label="操作" prop="cid">
<template slot-scope="scope">
<el-button @click="FindByClassesByCid(scope.row.cid)" type="primary" plain icon="el-icon-edit" size="small">编辑</el-button>
</template>
</el-table-column>
</el-table>
<el-table-column>
<el-button @click="DeleteClassesByCidFn" type="danger" icon="el-icon-delete" >批量删除</el-button>
</el-table-column>
<div align="center">
<el-pagination
@size-change="handleSizeChange"
@current-change="handleCurrentChange"
:current-page="pageinfo.pageNum"
:page-sizes="[2, 3, 5, 10]"
:page-size="pageinfo.pageSize"
layout="total, sizes, prev, pager, next, jumper"
:total="pageinfo.total">
</el-pagination>
<!-- 修改start -->
<el-dialog
title="修改班级"
:visible.sync="dialogVisible"
width="50%"
:before-close="handleClose">
<el-form ref="classesFrom" :model="classes" label-width="100px">
<el-form-item label="班级名称">
<el-input v-model="classes.cname"></el-input>
</el-form-item>
<el-form-item label="授课老师">
<el-select v-model="classes.teacher1_id" placeholder="请选择授课老师">
<el-option v-for="(t1, index1) in teacher1list" :key="index1" :value="t1.tid" :label="t1.tname"></el-option>
</el-select>
</el-form-item>
<el-form-item label="助理老师">
<el-select v-model="classes.teacher2_id" placeholder="请选择助理老师">
<el-option v-for="(t2, index2) in teacher2list" :key="index2" :value="t2.tid" :label="t2.tname"></el-option>
</el-select>
</el-form-item>
<el-form-item label="辅导员老师">
<el-select v-model="classes.teacher3_id" placeholder="请选择辅导员老师">
<el-option v-for="(t3, index3) in teacher3list" :key="index3" :value="t3.tid" :label="t3.tname"></el-option>
</el-select>
</el-form-item>
<el-form-item>
<el-button type="primary" @click.prevent="UpdateClasses">修改班级</el-button>
</el-form-item>
</el-form>
</el-dialog>
<!-- 修改end -->
</div>
</div>
</el-card>
</div>
</template>
<script>
import { FindClassesForPageNum,DeleteClassesByCid } from '../../api'
export default {
data() {
return {
pageinfo:{},
ClassesPi:{
pageNum:1,
pageSize:2,
cname:'',
},
ids:[],
}
},
created() {
this.FindClassesForPageNum()
},
methods: {
async FindClassesForPageNum() {
let { data } = await FindClassesForPageNum(this.ClassesPi)
if(data.code == 1){
this.pageinfo = data.data
}
},
handleSizeChange(val) {
this.ClassesPi.pageSize = 1
this.ClassesPi.pageSize = val
this.FindClassesForPageNum()
},
handleCurrentChange(val) {
this.ClassesPi.pageNum = val
this.FindClassesForPageNum()
},
handleClose(done) {
this.$confirm('确认关闭？')
.then(_ => {
done();
})
.catch(_ => {});
},
DeleteClassesByCidFn(){
this.ids = this.$refs.classesTable.selection.map(item => item.cid).join(',')
this.$confirm('确定要删除吗', '提示', {
confirmButtonText: '确定',
cancelButtonText: '取消',
type: 'warning'
}).then(async() => {
let { data } = await DeleteClassesByCid(this.ids)
if (data.code == 1) {
this.$message.success(data.message)
this.ClassesPi.pageNum=1
this.FindClassesForPageNum()
}
}).catch(() => {
this.$message({
type: 'info',
message: '已取消删除'
})
})
}
}
</script>
<style>
</style>
后端代码
- controller
package com.czxy.controller;
import com.czxy.domain.Classes;
import com.czxy.domain.ClassesPi;
import com.czxy.service.ClassesService;
import com.czxy.vo.BaseResult;
import com.github.pagehelper.PageInfo;
import org.springframework.web.bind.annotation.*;
import javax.annotation.Resource;
import java.util.List;
@RestController
@RequestMapping("/classes")
public class ClassesController {
@Resource
private ClassesService classesService;
/**
* 查询班级列表(分页+条件)
* @param
* @return
*/
@GetMapping("/FindClassesForPageNum")
public BaseResult FindClassesForPageNum( ClassesPi classesPi){
PageInfo<Classes> pi = classesService.FindClassesForPageNum(classesPi);
for (Classes classes : pi.getList()) {
System.out.println(classes.toString());
}
return BaseResult.ok("查询成功",pi);
}
/**
* 添加班级
* @param classes
* @return
*/
@PostMapping("/addClasses")
public BaseResult addClasses(@RequestBody Classes classes){
classesService.addClasses(classes);
return BaseResult.ok("添加成功");
}
/**
* 批量删除数据
* @param ids
* @return
*/
@DeleteMapping("/DeleteClassesByCid/{ids}")
public BaseResult DeleteClassesByCid(@PathVariable("ids")String ids){
classesService.DeleteClassesByCid(ids);
return BaseResult.ok("删除成功");
}
}
- service
package com.czxy.service;
import com.czxy.domain.Classes;
import com.czxy.domain.ClassesPi;
import com.github.pagehelper.PageInfo;
import java.util.List;
public interface ClassesService {
/**
* 查询班级列表(分页+条件)
* @param
* @param classesPi
* @return
*/
PageInfo<Classes> FindClassesForPageNum(ClassesPi classesPi);
/**
* 添加班级
* @param classes
* @return
*/
void addClasses(Classes classes);
/**
* 批量删除数据
* @param ids
* @return
*/
void DeleteClassesByCid(String ids);
}
- serviceImpl
package com.czxy.service.impl;
import com.czxy.domain.Classes;
import com.czxy.domain.ClassesPi;
import com.czxy.mapper.ClassesMapper;
import com.czxy.mapper.StudentMapper;
import com.czxy.mapper.TeacherMapper;
import com.czxy.service.ClassesService;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import javax.annotation.Resource;
import java.util.List;
@Service
@Transactional
public class ClassesServiceImpl implements ClassesService {
@Resource
private ClassesMapper classesMapper;
@Resource
private TeacherMapper teacherMapper;
@Resource
private StudentMapper studentMapper;
/**
* 查询班级列表(分页+条件)
* @param
* @param classesPi
* @return
*/
@Override
public PageInfo<Classes> FindClassesForPageNum(ClassesPi classesPi) {
PageHelper.startPage(classesPi.getPageNum(),classesPi.getPageSize());
if (classesPi.getCname()!=null && !"" .equals(classesPi.getCname())){
classesPi.setCname("%"+classesPi.getCname()+"%");
}
List<Classes> clist = classesMapper.FindClassesForPageNum(classesPi);
PageInfo<Classes> classesPageInfo = new PageInfo<>(clist);
return classesPageInfo;
}
/**
* 添加班级
* @param classes
* @return
*/
@Override
public void addClasses(Classes classes) {
classesMapper.insertSelective(classes);
}
/**
* 批量删除数据
* @param ids
* @return
*/
@Override
public void DeleteClassesByCid(String ids) {
String[] split = ids.split(",");
for (String s : split) {
classesMapper.deleteByPrimaryKey(Integer.parseInt(s));
}
}
}
2.6 功能6：修改班级
前段代码
<template>
<div>
<el-breadcrumb separator="/">
<el-breadcrumb-item :to="{ path: '/classesList' }">首页</el-breadcrumb-item>
<el-breadcrumb-item ><a href="/">班级管理</a></el-breadcrumb-item>
<el-breadcrumb-item ><a href="/classList">班级列表</a></el-breadcrumb-item>
</el-breadcrumb>
<br/>
<el-card class="box-card">
<div>
<div slot="header" >
<el-form :inline="true" :model="ClassesPi" size="mini" class="demo-form-inline">
<el-form-item label="班级名称">
<el-input v-model="ClassesPi.cname" clearable placeholder="请输入班级名称"></el-input>
</el-form-item>
<el-form-item>
<el-button type="primary" @click="FindClassesForPageNum">查询</el-button>
</el-form-item>
</el-form>
</div>
<el-table :data="pageinfo.list" ref="classesTable" style="width: 100%" @>
<el-table-column type="selection" width="55"></el-table-column>
<el-table-column prop="cname" label="班级名称" ></el-table-column>
<el-table-column label="授课老师名称">
<template slot-scope="scope">{{ scope.row.teacher1.tname }}</template>
</el-table-column>
<el-table-column label="助理老师名称" >
<template slot-scope="scope">{{ scope.row.teacher2.tname }}</template>
</el-table-column>
<el-table-column label="辅导员老师名称" >
<template slot-scope="scope">{{ scope.row.teacher3.tname }}</template>
</el-table-column>
<el-table-column fixed="right" label="操作" prop="cid">
<template slot-scope="scope">
<el-button @click="FindByClassesByCid(scope.row.cid)" type="primary" plain icon="el-icon-edit" size="small">编辑</el-button>
</template>
</el-table-column>
</el-table>
<el-table-column>
<el-button @click="DeleteClassesByCidFn" type="danger" icon="el-icon-delete" >批量删除</el-button>
</el-table-column>
<div align="center">
<el-pagination
@size-change="handleSizeChange"
@current-change="handleCurrentChange"
:current-page="pageinfo.pageNum"
:page-sizes="[2, 3, 5, 10]"
:page-size="pageinfo.pageSize"
layout="total, sizes, prev, pager, next, jumper"
:total="pageinfo.total">
</el-pagination>
<!-- 修改start -->
<el-dialog
title="修改班级"
:visible.sync="dialogVisible"
width="50%"
:before-close="handleClose">
<el-form ref="classesFrom" :model="classes" label-width="100px">
<el-form-item label="班级名称">
<el-input v-model="classes.cname"></el-input>
</el-form-item>
<el-form-item label="授课老师">
<el-select v-model="classes.teacher1_id" placeholder="请选择授课老师">
<el-option v-for="(t1, index1) in teacher1list" :key="index1" :value="t1.tid" :label="t1.tname"></el-option>
</el-select>
</el-form-item>
<el-form-item label="助理老师">
<el-select v-model="classes.teacher2_id" placeholder="请选择助理老师">
<el-option v-for="(t2, index2) in teacher2list" :key="index2" :value="t2.tid" :label="t2.tname"></el-option>
</el-select>
</el-form-item>
<el-form-item label="辅导员老师">
<el-select v-model="classes.teacher3_id" placeholder="请选择辅导员老师">
<el-option v-for="(t3, index3) in teacher3list" :key="index3" :value="t3.tid" :label="t3.tname"></el-option>
</el-select>
</el-form-item>
<el-form-item>
<el-button type="primary" @click.prevent="UpdateClasses">修改班级</el-button>
</el-form-item>
</el-form>
</el-dialog>
<!-- 修改end -->
</div>
</div>
</el-card>
</div>
</template>
<script>
import { FindClassesForPageNum, UpdateClasses,DeleteClassesByCid, FindByClassesByCid,Findteacher1list, Findteacher2list, Findteacher3list,} from '../../api'
export default {
data() {
return {
pageinfo:{},
ClassesPi:{
pageNum:1,
pageSize:2,
cname:'',
},
ids:[],
classes:{},
dialogVisible: false,
teacher1list:[],
teacher2list:[],
teacher3list:[],
t1:1,
t2:2,
t3:3
}
},
created() {
this.FindClassesForPageNum()
},
methods: {
async FindClassesForPageNum() {
let { data } = await FindClassesForPageNum(this.ClassesPi)
if(data.code == 1){
this.pageinfo = data.data
}
},
handleSizeChange(val) {
this.ClassesPi.pageSize = 1
this.ClassesPi.pageSize = val
this.FindClassesForPageNum()
},
handleCurrentChange(val) {
this.ClassesPi.pageNum = val
this.FindClassesForPageNum()
},
handleClose(done) {
this.$confirm('确认关闭？')
.then(_ => {
done();
})
.catch(_ => {});
},
DeleteClassesByCidFn(){
this.ids = this.$refs.classesTable.selection.map(item => item.cid).join(',')
this.$confirm('确定要删除吗', '提示', {
confirmButtonText: '确定',
cancelButtonText: '取消',
type: 'warning'
}).then(async() => {
let { data } = await DeleteClassesByCid(this.ids)
if (data.code == 1) {
this.$message.success(data.message)
this.ClassesPi.pageNum=1
this.FindClassesForPageNum()
}
}).catch(() => {
this.$message({
type: 'info',
message: '已取消删除'
})
})
},
async FindByClassesByCid(cid){
this.dialogVisible = true
let { data: baserest1 } = await Findteacher1list(this.t1)
this.teacher1list = baserest1.data
let { data: baserest2 } = await Findteacher2list(this.t2)
this.teacher2list = baserest2.data
let { data:baserest3 } = await Findteacher3list(this.t3)
this.teacher3list = baserest3.data
let { data } = await FindByClassesByCid(cid)
if (data.code == 1 ) {
this.classes = data.data
}
}
}
</script>
<style>
</style>
后端代码
- controller
package com.czxy.controller;
import com.czxy.domain.Classes;
import com.czxy.domain.ClassesPi;
import com.czxy.domain.Teacher;
import com.czxy.service.ClassesService;
import com.czxy.vo.BaseResult;
import com.github.pagehelper.PageInfo;
import org.springframework.web.bind.annotation.*;
import javax.annotation.Resource;
import java.util.List;
@RestController
@RequestMapping("/classes")
public class ClassesController {
@Resource
private ClassesService classesService;
/**
* 查询班级列表(分页+条件)
* @param
* @return
*/
@GetMapping("/FindClassesForPageNum")
public BaseResult FindClassesForPageNum( ClassesPi classesPi){
PageInfo<Classes> pi = classesService.FindClassesForPageNum(classesPi);
for (Classes classes : pi.getList()) {
System.out.println(classes.toString());
}
return BaseResult.ok("查询成功",pi);
}
/**
* 查询授课老师信息
* @param tid
* @return
*/
@GetMapping("/Findteacher1list/{t1}")
public BaseResult Findteacher1list(@PathVariable("t1")Integer tid){
List<Teacher> tlist = classesService.Findteacher1list(tid);
System.out.println(tlist);
return BaseResult.ok("查询成功",tlist);
}
/**
* 查询助理老师信息
* @param tid
* @return
*/
@GetMapping("/Findteacher2list/{t2}")
public BaseResult Findteacher2list(@PathVariable("t2")Integer tid){
List<Teacher> tlist = classesService.Findteacher2list(tid);
System.out.println(tlist);
return BaseResult.ok("查询成功",tlist);
}
/**
* 查询辅导员老师老师信息
* @param tid
* @return
*/
@GetMapping("/Findteacher3list/{t3}")
public BaseResult Findteacher3list(@PathVariable("t3")Integer tid){
List<Teacher> tlist = classesService.Findteacher3list(tid);
System.out.println(tlist);
return BaseResult.ok("查询成功",tlist);
}
/**
* 添加班级
* @param classes
* @return
*/
@PostMapping("/addClasses")
public BaseResult addClasses(@RequestBody Classes classes){
classesService.addClasses(classes);
return BaseResult.ok("添加成功");
}
/**
* 批量删除数据
* @param ids
* @return
*/
@DeleteMapping("/DeleteClassesByCid/{ids}")
public BaseResult DeleteClassesByCid(@PathVariable("ids")String ids){
classesService.DeleteClassesByCid(ids);
return BaseResult.ok("删除成功");
}
/**
* 修改第一步:回显数据
* @param cid
* @return
*/
@GetMapping("/FindByClassesByCid/{cid}")
public BaseResult FindByClassesByCid(@PathVariable("cid") Integer cid){
Classes classes = classesService.FindByClassesByCid(cid);
return BaseResult.ok("查询成功",classes);
}
}
- service
package com.czxy.service;
import com.czxy.domain.Classes;
import com.czxy.domain.ClassesPi;
import com.czxy.domain.Teacher;
import com.github.pagehelper.PageInfo;
import java.util.List;
public interface ClassesService {
/**
* 查询班级列表(分页+条件)
* @param
* @param classesPi
* @return
*/
PageInfo<Classes> FindClassesForPageNum(ClassesPi classesPi);
/**
* 查询授课老师信息
* @param tid
* @return
*/
List<Teacher> Findteacher1list(Integer tid);
/**
* 查询助理老师信息
* @param tid
* @return
*/
List<Teacher> Findteacher2list(Integer tid);
/**
* 查询辅导员老师老师信息
* @param tid
* @return
*/
List<Teacher> Findteacher3list(Integer tid);
/**
* 添加班级
* @param classes
* @return
*/
void addClasses(Classes classes);
/**
* 批量删除数据
* @param ids
* @return
*/
void DeleteClassesByCid(String ids);
/**
* 修改第一步:回显数据
* @param cid
* @return
*/
Classes FindByClassesByCid(Integer cid);
}
- serviceIpml
package com.czxy.service.impl;
import com.czxy.domain.Classes;
import com.czxy.domain.ClassesPi;
import com.czxy.domain.Teacher;
import com.czxy.mapper.ClassesMapper;
import com.czxy.mapper.StudentMapper;
import com.czxy.mapper.TeacherMapper;
import com.czxy.service.ClassesService;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import javax.annotation.Resource;
import java.util.List;
@Service
@Transactional
public class ClassesServiceImpl implements ClassesService {
@Resource
private ClassesMapper classesMapper;
@Resource
private TeacherMapper teacherMapper;
@Resource
private StudentMapper studentMapper;
/**
* 查询班级列表(分页+条件)
* @param
* @param classesPi
* @return
*/
@Override
public PageInfo<Classes> FindClassesForPageNum(ClassesPi classesPi) {
PageHelper.startPage(classesPi.getPageNum(),classesPi.getPageSize());
if (classesPi.getCname()!=null && !"" .equals(classesPi.getCname())){
classesPi.setCname("%"+classesPi.getCname()+"%");
}
List<Classes> clist = classesMapper.FindClassesForPageNum(classesPi);
PageInfo<Classes> classesPageInfo = new PageInfo<>(clist);
return classesPageInfo;
}
/**
* 查询授课老师信息
* @param tid
* @return
*/
@Override
public List<Teacher> Findteacher1list(Integer tid) {
List<Teacher> tlist = teacherMapper.Findteacher1list(tid);
return tlist;
}
/**
* 查询助理老师信息
* @param tid
* @return
*/
@Override
public List<Teacher> Findteacher2list(Integer tid) {
List<Teacher> tlist = teacherMapper.Findteacher1list(tid);
return tlist;
}
/**
* 查询辅导员老师老师信息
* @param tid
* @return
*/
@Override
public List<Teacher> Findteacher3list(Integer tid) {
List<Teacher> tlist = teacherMapper.Findteacher1list(tid);
return tlist;
}
/**
* 添加班级
* @param classes
* @return
*/
@Override
public void addClasses(Classes classes) {
classesMapper.insertSelective(classes);
}
/**
* 批量删除数据
* @param ids
* @return
*/
@Override
public void DeleteClassesByCid(String ids) {
String[] split = ids.split(",");
for (String s : split) {
classesMapper.deleteByPrimaryKey(Integer.parseInt(s));
}
}
/**
* 修改第一步:回显数据
* @param cid
* @return
*/
@Override
public Classes FindByClassesByCid(Integer cid) {
Classes classes = classesMapper.FindByClassesByCid(cid);
return classes;
}
}
- mapper
package com.czxy.mapper;
import com.czxy.domain.Classes;
import com.czxy.domain.ClassesPi;
import org.apache.ibatis.annotations.*;
import tk.mybatis.mapper.common.Mapper;
import java.util.List;
public interface ClassesMapper extends Mapper<Classes> {
/**
* 查询班级列表(分页+条件)
* @param
* @param classesPi
* @return
*/
@Select(" <script> select * from tb_class where 1=1 "+
" <if test = \" classesPi.cname != null and classesPi.cname != '' \"> and cname like #{classesPi.cname} </if> "+
"</script>")
@Results(id = "c1",value = {
@Result(property = "cid",column = "cid"),
@Result(property = "cname",column = "cname"),
@Result(property = "teacher1_id",column = "teacher1_id"),
@Result(property = "teacher2_id",column = "teacher2_id"),
@Result(property = "teacher3_id",column = "teacher3_id"),
@Result(property = "teacher1",column = "teacher1_id",one = @One(select = "com.czxy.mapper.TeacherMapper.selectByID")),
@Result(property = "teacher2",column = "teacher2_id",one = @One(select = "com.czxy.mapper.TeacherMapper.selectByID")),
@Result(property = "teacher3",column = "teacher3_id",one = @One(select = "com.czxy.mapper.TeacherMapper.selectByID"))
})
List<Classes> FindClassesForPageNum(@Param("classesPi") ClassesPi classesPi);
@Select("select * from tb_class where cid=#{cid}")
@ResultMap( "c1")
Classes FindByClassesByCid(@Param("cid") Integer cid);
}
2.7 功能7：添加学生
前端代码
<template>
<div>
<el-form ref="form" :model="student" label-width="100px">
<el-form-item label="选择班级">
<el-select v-model="student.class_id" placeholder="请选择活班级">
<el-option v-for="(c, index) in clist" :key="index" :label="c.cname" :value="c.cid"></el-option>
</el-select>
</el-form-item>
<el-form-item label="学生名称">
<el-input v-model="student.sname"></el-input>
</el-form-item>
<el-form-item label="性别">
<el-radio-group v-model="student.gender">
<el-radio label="1">男</el-radio>
<el-radio label="2">女</el-radio>
</el-radio-group>
</el-form-item>
<el-form-item label="年龄">
<el-input v-model="student.age"></el-input>
</el-form-item>
<el-form-item label="薪资">
<el-input v-model="student.salary"></el-input>
</el-form-item>
<el-form-item label="个人介绍">
<el-input type="textarea" v-model="student.desc"></el-input>
</el-form-item>
<el-form-item>
<el-button type="primary" @click="addStudent">添加学生</el-button>
</el-form-item>
</el-form>
</div>
</template>
<script>
import { addStudent,Findclasses } from '../../api'
export default {
data() {
return {
student:{},
clist:[]
}
},
created() {
this.Findclasses()
},
methods: {
async Findclasses() {
let{ data } = await Findclasses();
if (data.code == 1) {
this.clist = data.data
}
},
async addStudent() {
let { data } = await addStudent(this.student)
if (data.code==1) {
this.$message.success(data.message)
this.$router.push('/studentList')
}
}
},
}
</script>
<style>
</style>
后端代码
- domain
package com.czxy.domain;
import javax.persistence.Column;
import javax.persistence.Id;
import javax.persistence.Table;
import java.io.Serializable;
@Table(name = "tb_student")
public class Student implements Serializable {
@Id
private Integer sid;
private String sname;
private Integer gender;
private Integer age;
private Double salary;
@Column(name = "`desc`")
private String desc;
private Integer class_id;
private Classes classes;
@Override
public String toString() {
return "Student{" +
"sid=" + sid +
", sname='" + sname + '\'' +
", gender=" + gender +
", age=" + age +
", salary=" + salary +
", desc='" + desc + '\'' +
", class_id=" + class_id +
", classes=" + classes +
'}';
}
public Integer getSid() {
return sid;
}
public void setSid(Integer sid) {
this.sid = sid;
}
public String getSname() {
return sname;
}
public void setSname(String sname) {
this.sname = sname;
}
public Integer getGender() {
return gender;
}
public void setGender(Integer gender) {
this.gender = gender;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public Double getSalary() {
return salary;
}
public void setSalary(Double salary) {
this.salary = salary;
}
public String getDesc() {
return desc;
}
public void setDesc(String desc) {
this.desc = desc;
}
public Integer getClass_id() {
return class_id;
}
public void setClass_id(Integer class_id) {
this.class_id = class_id;
}
public Classes getClasses() {
return classes;
}
public void setClasses(Classes classes) {
this.classes = classes;
}
public Student(Integer sid, String sname, Integer gender, Integer age, Double salary, String desc, Integer class_id, Classes classes) {
this.sid = sid;
this.sname = sname;
this.gender = gender;
this.age = age;
this.salary = salary;
this.desc = desc;
this.class_id = class_id;
this.classes = classes;
}
public Student() {
}
}
- mapper
package com.czxy.mapper;
import tk.mybatis.mapper.common.Mapper;
import java.util.List;
public interface StudentMapper extends Mapper<Student> {
}
- service
package com.czxy.service;
import com.czxy.domain.Student;
import java.util.List;
public interface StudentService {
/**
* 添加一个学生
* @param student
* @return
*/
void addStudent(Student student);
}
- serviceImpl
package com.czxy.service.impl;
import com.czxy.domain.Student;
import com.czxy.mapper.ClassesMapper;
import com.czxy.mapper.StudentMapper;
import com.czxy.mapper.TeacherMapper;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import javax.annotation.Resource;
@Service
@Transactional
public class StudentServiceImpl implements StudentService {
@Resource
private ClassesMapper classesMapper;
@Resource
private TeacherMapper teacherMapper;
@Resource
private StudentMapper studentMapper;
/**
* 添加一个学生
* @param student
* @return
*/
@Override
public void addStudent(Student student) {
studentMapper.insertSelective(student);
}
- controller
package com.czxy.controller;
import com.czxy.domain.Student;
import com.czxy.service.StudentService;
import com.czxy.vo.BaseResult;
import org.springframework.web.bind.annotation.*;
import javax.annotation.Resource;
@RestController
@RequestMapping("/student")
public class StudentController {
@Resource
private StudentService studentService;
/**
* 添加一个学生
* @param student
* @return
*/
@PostMapping("/addStudent")
private BaseResult addStudent(@RequestBody Student student){
studentService.addStudent(student);
return BaseResult.ok("添加成功");
}
}
2.8 功能8：学生列表（基本列表+分页+条件）
前端代码
<template>
<div>
<div>
<el-breadcrumb separator="/">
<el-breadcrumb-item :to="{ path: '/studentList' }">首页</el-breadcrumb-item>
<el-breadcrumb-item><a href="/studentList">学生管理</a></el-breadcrumb-item>
<el-breadcrumb-item>学生列表</el-breadcrumb-item>
</el-breadcrumb>
</div>
<el-card class="box-card">
<div slot="header" class="clearfix">
<div slot="header" >
<el-form :inline="true" :model="studentPi" size="mini" class="demo-form-inline">
<el-form-item label="姓名">
<el-input v-model="studentPi.sname" clearable placeholder="请输入学生姓名"></el-input>
</el-form-item>
<el-form-item label="性别">
<el-radio-group v-model="studentPi.gender">
<el-radio label="1">男</el-radio>
<el-radio label="2">女</el-radio>
</el-radio-group>
</el-form-item>
<el-form-item label="薪资">
<el-col :span="10">
<el-form-item>
<el-input placeholder="请输入起始值" v-model="studentPi.minsalary" ></el-input>
</el-form-item>
</el-col>
<el-col class="line" :span="2">-</el-col>
<el-col :span="10">
<el-form-item >
<el-input placeholder="请输入结束值" v-model="studentPi.maxsalary" ></el-input>
</el-form-item>
</el-col>
</el-form-item>
<el-form-item>
<el-button type="primary" @click="FindStudentListForPageNum">查询</el-button>
</el-form-item>
</el-form>
</div>
</div>
<div>
<el-table ref="studentTable" :data="pageinfo.list" style="width: 100%">
<el-table-column type="selection" width="55"></el-table-column>
<el-table-column prop="sname" label="学生姓名"></el-table-column>
<el-table-column label="性别">
<template scope="scope">
{{scope.row.gender==1 ? "男":"女"}}
</template>
</el-table-column>
<el-table-column prop="age" label="年龄"></el-table-column>
<el-table-column prop="salary" label="薪资"></el-table-column>
<el-table-column label="班级名称">
<template slot-scope="scope">{{ scope.row.classes.cname }}</template>
</el-table-column>
<el-table-column label="授课老师">
<template slot-scope="scope">{{ scope.row.classes.teacher1.tname }}</template>
</el-table-column>
<el-table-column label="助理老师">
<template slot-scope="scope">{{ scope.row.classes.teacher2.tname }}</template>
</el-table-column>
<el-table-column label="辅导员老师">
<template slot-scope="scope">{{ scope.row.classes.teacher3.tname }}</template>
</el-table-column>
<el-table-column prop="sid" label="操作">
<template slot-scope="scope">
<el-button @click="FindStudent(scope.row.sid)" type="text" size="small">查看</el-button>
</template>
</el-table-column>
</el-table>
<el-table-column>
<el-button @click="deleteStudentBysid" type="danger" >批量删除</el-button>
</el-table-column>
<div align ="center">
<el-pagination
@size-change="handleSizeChange"
@current-change="handleCurrentChange"
:current-page="pageinfo.pageNum"
:page-sizes="[2, 3, 5, 10]"
:page-size="pageinfo.pageSize"
layout="total, sizes, prev, pager, next, jumper"
:total="pageinfo.total">
</el-pagination>
</div>
</div>
</el-card>
</div>
</template>
<script>
import {FindStudentListForPageNum } from '../../api'
export default {
data() {
return {
pageinfo:{},
studentPi:{
pageNum:1,
pageSize:2,
sname:'',
gender:'',
minsalary:'',
maxsalary:''
},
}
},
created() {
this.FindStudentListForPageNum()
},
methods: {
async FindStudentListForPageNum(){
let { data } = await FindStudentListForPageNum(this.studentPi)
if (data.code == 1) {
this.pageinfo = data.data
}
},
handleSizeChange(val) {
this.studentPi.pageNum = 1
this.studentPi.pageSize = val
this.FindStudentListForPageNum()
},
handleCurrentChange(val) {
this.studentPi.pageNum =val
this.FindStudentListForPageNum()
}
}
</script>
<style>
</style>
后端代码
package com.czxy.controller;
import com.czxy.domain.Classes;
import com.czxy.domain.Student;
import com.czxy.domain.StudentPi;
import com.czxy.service.StudentService;
import com.czxy.vo.BaseResult;
import com.github.pagehelper.PageInfo;
import org.springframework.web.bind.annotation.*;
import javax.annotation.Resource;
import java.util.List;
@RestController
@RequestMapping("/student")
public class StudentController {
@Resource
private StudentService studentService;
/**
* 学生列表(分页+多条件)
* @param studentPi
* @return
*/
@GetMapping("/FindStudentListForPageNum")
public BaseResult FindStudentListForPageNum( StudentPi studentPi){
PageInfo<Student> pageInfo = studentService.FindStudentListForPageNum(studentPi);
return BaseResult.ok("查询成功",pageInfo);
}
/**
* 添加一个学生
* @param student
* @return
*/
@PostMapping("/addStudent")
private BaseResult addStudent(@RequestBody Student student){
studentService.addStudent(student);
return BaseResult.ok("添加成功");
}
}
- service
package com.czxy.service;
import com.czxy.domain.Classes;
import com.czxy.domain.Student;
import com.czxy.domain.StudentPi;
import com.github.pagehelper.PageInfo;
import java.util.List;
public interface StudentService {
/**
* 学生列表(分页+多条件)
* @param studentPi
* @return
*/
PageInfo<Student> FindStudentListForPageNum(StudentPi studentPi);
/**
* 添加一个学生
* @param student
* @return
*/
void addStudent(Student student);
}
- serviceImpl
package com.czxy.service.impl;
import com.czxy.domain.Classes;
import com.czxy.domain.Student;
import com.czxy.domain.StudentPi;
import com.czxy.mapper.ClassesMapper;
import com.czxy.mapper.StudentMapper;
import com.czxy.mapper.TeacherMapper;
import com.czxy.service.StudentService;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import javax.annotation.Resource;
import java.util.List;
@Service
@Transactional
public class StudentServiceImpl implements StudentService {
@Resource
private ClassesMapper classesMapper;
@Resource
private TeacherMapper teacherMapper;
@Resource
private StudentMapper studentMapper;
/**
* 学生列表(分页+多条件)
* @param studentPi
* @return
*/
@Override
public PageInfo<Student> FindStudentListForPageNum(StudentPi studentPi) {
PageHelper.startPage(studentPi.getPageNum(),studentPi.getPageSize());
// 设置姓名
if (studentPi.getSname() != null && !"" .equals(studentPi.getSname())){
studentPi.setSname("%"+studentPi.getSname()+"%");
}
List<Student> slist = studentMapper.FindStudentListForPageNum(studentPi);
PageInfo<Student> pageInfo = new PageInfo<>(slist);
return pageInfo;
}
/**
* 添加一个学生
* @param student
* @return
*/
@Override
public void addStudent(Student student) {
studentMapper.insertSelective(student);
}
- mapper
package com.czxy.mapper;
import com.czxy.domain.Student;
import com.czxy.domain.StudentPi;
import org.apache.ibatis.annotations.*;
import tk.mybatis.mapper.common.Mapper;
import java.util.List;
public interface StudentMapper extends Mapper<Student> {
/**
* 学生列表(分页+多条件)
* @param studentPi
* @return
*/
@Select("<script> select * from tb_student where 1=1"+
"<if test= \" studentPi.sname != null and studentPi.sname != '' \"> and sname like #{studentPi.sname} </if> "+
"<if test= \" studentPi.gender != null and studentPi.gender != '' \"> and gender=#{studentPi.gender} </if>"+
"<if test= \" studentPi.minsalary != null and studentPi.minsalary != '' and studentPi.maxsalary != null and studentPi.maxsalary != '' \"> and salary between #{studentPi.minsalary} and #{studentPi.maxsalary} </if>"+
"</script>")
@Results(id = "s1",value = {
@Result(property = "class_id",column = "class_id"),
@Result(property = "classes",column = "class_id",one = @One(select = "com.czxy.mapper.ClassesMapper.FindByClassesByCid"))
})
List<Student> FindStudentListForPageNum(@Param("studentPi") StudentPi studentPi);
}
2.9 功能9：批量删除
前段代码
<template>
<div>
<div>
<el-breadcrumb separator="/">
<el-breadcrumb-item :to="{ path: '/studentList' }">首页</el-breadcrumb-item>
<el-breadcrumb-item><a href="/studentList">学生管理</a></el-breadcrumb-item>
<el-breadcrumb-item>学生列表</el-breadcrumb-item>
</el-breadcrumb>
</div>
<el-card class="box-card">
<div slot="header" class="clearfix">
<div slot="header" >
<el-form :inline="true" :model="studentPi" size="mini" class="demo-form-inline">
<el-form-item label="姓名">
<el-input v-model="studentPi.sname" clearable placeholder="请输入学生姓名"></el-input>
</el-form-item>
<el-form-item label="性别">
<el-radio-group v-model="studentPi.gender">
<el-radio label="1">男</el-radio>
<el-radio label="2">女</el-radio>
</el-radio-group>
</el-form-item>
<el-form-item label="薪资">
<el-col :span="10">
<el-form-item>
<el-input placeholder="请输入起始值" v-model="studentPi.minsalary" ></el-input>
</el-form-item>
</el-col>
<el-col class="line" :span="2">-</el-col>
<el-col :span="10">
<el-form-item >
<el-input placeholder="请输入结束值" v-model="studentPi.maxsalary" ></el-input>
</el-form-item>
</el-col>
</el-form-item>
<el-form-item>
<el-button type="primary" @click="FindStudentListForPageNum">查询</el-button>
</el-form-item>
</el-form>
</div>
</div>
<div>
<el-table ref="studentTable" :data="pageinfo.list" style="width: 100%">
<el-table-column type="selection" width="55"></el-table-column>
<el-table-column prop="sname" label="学生姓名"></el-table-column>
<el-table-column label="性别">
<template scope="scope">
{{scope.row.gender==1 ? "男":"女"}}
</template>
</el-table-column>
<el-table-column prop="age" label="年龄"></el-table-column>
<el-table-column prop="salary" label="薪资"></el-table-column>
<el-table-column label="班级名称">
<template slot-scope="scope">{{ scope.row.classes.cname }}</template>
</el-table-column>
<el-table-column label="授课老师">
<template slot-scope="scope">{{ scope.row.classes.teacher1.tname }}</template>
</el-table-column>
<el-table-column label="助理老师">
<template slot-scope="scope">{{ scope.row.classes.teacher2.tname }}</template>
</el-table-column>
<el-table-column label="辅导员老师">
<template slot-scope="scope">{{ scope.row.classes.teacher3.tname }}</template>
</el-table-column>
<el-table-column prop="sid" label="操作">
<template slot-scope="scope">
<el-button @click="FindStudent(scope.row.sid)" type="text" size="small">查看</el-button>
</template>
</el-table-column>
</el-table>
<el-table-column>
<el-button @click="deleteStudentBysid" type="danger" >批量删除</el-button>
</el-table-column>
<div align ="center">
<el-pagination
@size-change="handleSizeChange"
@current-change="handleCurrentChange"
:current-page="pageinfo.pageNum"
:page-sizes="[2, 3, 5, 10]"
:page-size="pageinfo.pageSize"
layout="total, sizes, prev, pager, next, jumper"
:total="pageinfo.total">
</el-pagination>
</div>
</div>
</el-card>
</div>
</template>
<script>
import {FindStudentListForPageNum,deleteStudentBysid } from '../../api'
export default {
data() {
return {
pageinfo:{},
studentPi:{
pageNum:1,
pageSize:2,
sname:'',
gender:'',
minsalary:'',
maxsalary:''
},
ids:[]
}
},
created() {
this.FindStudentListForPageNum()
this.Findclasses()
},
methods: {
async FindStudentListForPageNum(){
let { data } = await FindStudentListForPageNum(this.studentPi)
if (data.code == 1) {
this.pageinfo = data.data
}
},
handleSizeChange(val) {
this.studentPi.pageSize = 1
this.studentPi.pageSize = val
this.FindStudentListForPageNum()
},
handleCurrentChange(val) {
this.studentPi.pageNum =val
this.FindStudentListForPageNum()
},
deleteStudentBysid() {
this.ids = this.$refs.studentTable.selection.map(item => item.sid).join(',')
this.$confirm('确认要删除吗?').then(async() =>{
let { data } = await deleteStudentBysid(this.ids)
if (data.code == 1) {
this.$message.success(data.message)
this.studentPi.pageNum=1
this.FindStudentListForPageNum()
}
})
.catch(()=>{
this.$message.info("取消删除")
this.FindStudentListForPageNum()
})
},
handleClose(done) {
this.$confirm('确认关闭？')
.then(_ => {
done();
})
.catch(_ => {});
}
}
}
</script>
<style>
</style>
后端代码
- controller
package com.czxy.controller;
import com.czxy.domain.Classes;
import com.czxy.domain.Student;
import com.czxy.domain.StudentPi;
import com.czxy.service.StudentService;
import com.czxy.vo.BaseResult;
import com.github.pagehelper.PageInfo;
import org.springframework.web.bind.annotation.*;
import javax.annotation.Resource;
import java.util.List;
@RestController
@RequestMapping("/student")
public class StudentController {
@Resource
private StudentService studentService;
/**
* 学生列表(分页+多条件)
* @param studentPi
* @return
*/
@GetMapping("/FindStudentListForPageNum")
public BaseResult FindStudentListForPageNum( StudentPi studentPi){
PageInfo<Student> pageInfo = studentService.FindStudentListForPageNum(studentPi);
return BaseResult.ok("查询成功",pageInfo);
}
/**
* 添加一个学生
* @param student
* @return
*/
@PostMapping("/addStudent")
private BaseResult addStudent(@RequestBody Student student){
studentService.addStudent(student);
return BaseResult.ok("添加成功");
}
/**
* 批量删除
* @param ids
* @return
*/
@DeleteMapping("/deleteStudentBysid/{ids}")
public BaseResult deleteStudentBysid(@PathVariable("ids") String ids){
studentService.deleteStudentBysid(ids);
return BaseResult.ok("删除成功");
}
}
- service
package com.czxy.service;
import com.czxy.domain.Classes;
import com.czxy.domain.Student;
import com.czxy.domain.StudentPi;
import com.github.pagehelper.PageInfo;
import java.util.List;
public interface StudentService {
/**
* 学生列表(分页+多条件)
* @param studentPi
* @return
*/
PageInfo<Student> FindStudentListForPageNum(StudentPi studentPi);
/**
* 添加一个学生
* @param student
* @return
*/
void addStudent(Student student);
/**
* 批量删除
* @param ids
* @return
*/
void deleteStudentBysid(String ids);
}
- serviceImpl
package com.czxy.service.impl;
import com.czxy.domain.Classes;
import com.czxy.domain.Student;
import com.czxy.domain.StudentPi;
import com.czxy.mapper.ClassesMapper;
import com.czxy.mapper.StudentMapper;
import com.czxy.mapper.TeacherMapper;
import com.czxy.service.StudentService;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import javax.annotation.Resource;
import java.util.List;
@Service
@Transactional
public class StudentServiceImpl implements StudentService {
@Resource
private ClassesMapper classesMapper;
@Resource
private TeacherMapper teacherMapper;
@Resource
private StudentMapper studentMapper;
/**
* 学生列表(分页+多条件)
* @param studentPi
* @return
*/
@Override
public PageInfo<Student> FindStudentListForPageNum(StudentPi studentPi) {
PageHelper.startPage(studentPi.getPageNum(),studentPi.getPageSize());
// 设置姓名
if (studentPi.getSname() != null && !"" .equals(studentPi.getSname())){
studentPi.setSname("%"+studentPi.getSname()+"%");
}
List<Student> slist = studentMapper.FindStudentListForPageNum(studentPi);
PageInfo<Student> pageInfo = new PageInfo<>(slist);
return pageInfo;
}
/**
* 添加一个学生
* @param student
* @return
*/
@Override
public void addStudent(Student student) {
studentMapper.insertSelective(student);
}
/**
* 批量删除
* @param ids
* @return
*/
@Override
public void deleteStudentBysid(String ids) {
String[] split = ids.split(",");
for (String s : split) {
studentMapper.deleteByPrimaryKey(Integer.parseInt(s));
}
}
2.10 功能10：修改学生
前端代码
<template>
<div>
<div>
<el-breadcrumb separator="/">
<el-breadcrumb-item :to="{ path: '/studentList' }">首页</el-breadcrumb-item>
<el-breadcrumb-item><a href="/studentList">学生管理</a></el-breadcrumb-item>
<el-breadcrumb-item>学生列表</el-breadcrumb-item>
</el-breadcrumb>
</div>
<el-card class="box-card">
<div slot="header" class="clearfix">
<div slot="header" >
<el-form :inline="true" :model="studentPi" size="mini" class="demo-form-inline">
<el-form-item label="姓名">
<el-input v-model="studentPi.sname" clearable placeholder="请输入学生姓名"></el-input>
</el-form-item>
<el-form-item label="性别">
<el-radio-group v-model="studentPi.gender">
<el-radio label="1">男</el-radio>
<el-radio label="2">女</el-radio>
</el-radio-group>
</el-form-item>
<el-form-item label="薪资">
<el-col :span="10">
<el-form-item>
<el-input placeholder="请输入起始值" v-model="studentPi.minsalary" ></el-input>
</el-form-item>
</el-col>
<el-col class="line" :span="2">-</el-col>
<el-col :span="10">
<el-form-item >
<el-input placeholder="请输入结束值" v-model="studentPi.maxsalary" ></el-input>
</el-form-item>
</el-col>
</el-form-item>
<el-form-item>
<el-button type="primary" @click="FindStudentListForPageNum">查询</el-button>
</el-form-item>
</el-form>
</div>
</div>
<div>
<el-table ref="studentTable" :data="pageinfo.list" style="width: 100%">
<el-table-column type="selection" width="55"></el-table-column>
<el-table-column prop="sname" label="学生姓名"></el-table-column>
<el-table-column label="性别">
<template scope="scope">
{{scope.row.gender==1 ? "男":"女"}}
</template>
</el-table-column>
<el-table-column prop="age" label="年龄"></el-table-column>
<el-table-column prop="salary" label="薪资"></el-table-column>
<el-table-column label="班级名称">
<template slot-scope="scope">{{ scope.row.classes.cname }}</template>
</el-table-column>
<el-table-column label="授课老师">
<template slot-scope="scope">{{ scope.row.classes.teacher1.tname }}</template>
</el-table-column>
<el-table-column label="助理老师">
<template slot-scope="scope">{{ scope.row.classes.teacher2.tname }}</template>
</el-table-column>
<el-table-column label="辅导员老师">
<template slot-scope="scope">{{ scope.row.classes.teacher3.tname }}</template>
</el-table-column>
<el-table-column prop="sid" label="操作">
<template slot-scope="scope">
<el-button @click="FindStudent(scope.row.sid)" type="text" size="small">查看</el-button>
</template>
</el-table-column>
</el-table>
<el-dialog
title="修改学生"
:visible.sync="dialogVisible"
width="50%"
:before-close="handleClose">
<el-form ref="form" :model="student" label-width="100px">
<el-form-item label="选择班级">
<el-select v-model="student.class_id" placeholder="请选择活班级">
<el-option v-for="(c, index) in clist" :key="index" :label="c.cname" :value="c.cid"></el-option>
</el-select>
</el-form-item>
<el-form-item label="学生名称">
<el-input v-model="student.sname"></el-input>
</el-form-item>
<el-form-item label="性别">
<el-radio-group v-model="student.gender">
<el-radio :label="1">男</el-radio>
<el-radio :label="2">女</el-radio>
</el-radio-group>
</el-form-item>
<el-form-item label="年龄">
<el-input v-model="student.age"></el-input>
</el-form-item>
<el-form-item label="薪资">
<el-input v-model="student.salary"></el-input>
</el-form-item>
<el-form-item label="个人介绍">
<el-input type="textarea" v-model="student.desc"></el-input>
</el-form-item>
<el-form-item>
<el-button @click="dialogVisible = false">取 消</el-button>
<el-button type="primary">确 定</el-button>
</el-form-item>
</el-form>
</el-dialog>
<el-table-column>
<el-button @click="deleteStudentBysid" type="danger" >批量删除</el-button>
</el-table-column>
<div align ="center">
<el-pagination
@size-change="handleSizeChange"
@current-change="handleCurrentChange"
:current-page="pageinfo.pageNum"
:page-sizes="[2, 3, 5, 10]"
:page-size="pageinfo.pageSize"
layout="total, sizes, prev, pager, next, jumper"
:total="pageinfo.total">
</el-pagination>
</div>
</div>
</el-card>
</div>
</template>
<script>
import {FindStudentListForPageNum, Findclasses,deleteStudentBysid ,FindStudent} from '../../api'
export default {
data() {
return {
pageinfo:{},
studentPi:{
pageNum:1,
pageSize:2,
sname:'',
gender:'',
minsalary:'',
maxsalary:''
},
ids:[],
student:{},
clist:[],
dialogVisible:false
}
},
created() {
this.FindStudentListForPageNum()
this.Findclasses()
},
methods: {
async FindStudentListForPageNum(){
let { data } = await FindStudentListForPageNum(this.studentPi)
if (data.code == 1) {
this.pageinfo = data.data
}
},
handleSizeChange(val) {
this.studentPi.pageSize = 1
this.studentPi.pageSize = val
this.FindStudentListForPageNum()
},
handleCurrentChange(val) {
this.studentPi.pageNum =val
this.FindStudentListForPageNum()
},
deleteStudentBysid() {
this.ids = this.$refs.studentTable.selection.map(item => item.sid).join(',')
this.$confirm('确认要删除吗?').then(async() =>{
let { data } = await deleteStudentBysid(this.ids)
if (data.code == 1) {
this.$message.success(data.message)
this.studentPi.pageNum=1
this.FindStudentListForPageNum()
}
})
.catch(()=>{
this.$message.info("取消删除")
this.FindStudentListForPageNum()
})
},
async Findclasses (){
let { data:baserest1 } = await Findclasses()
if (baserest1.code == 1) {
this.clist = baserest1.data
}
},
async FindStudent(sid) {
this.dialogVisible = true
let { data:baserest2 } = await FindStudent(sid)
if (baserest2.code==1) {
this.student = baserest2.data
}
},
handleClose(done) {
this.$confirm('确认关闭？')
.then(_ => {
done();
})
.catch(_ => {});
}
}
}
</script>
<style>
</style>
后端代码
- controller
package com.czxy.controller;
import com.czxy.domain.Classes;
import com.czxy.domain.Student;
import com.czxy.domain.StudentPi;
import com.czxy.service.StudentService;
import com.czxy.vo.BaseResult;
import com.github.pagehelper.PageInfo;
import org.springframework.web.bind.annotation.*;
import javax.annotation.Resource;
import java.util.List;
@RestController
@RequestMapping("/student")
public class StudentController {
@Resource
private StudentService studentService;
/**
* 学生列表(分页+多条件)
* @param studentPi
* @return
*/
@GetMapping("/FindStudentListForPageNum")
public BaseResult FindStudentListForPageNum( StudentPi studentPi){
PageInfo<Student> pageInfo = studentService.FindStudentListForPageNum(studentPi);
return BaseResult.ok("查询成功",pageInfo);
}
/**
* 查询班级信息
* @return
*/
@GetMapping("/Findclasses")
public BaseResult Findclasses(){
List<Classes> clist = studentService.Findclasses();
return BaseResult.ok("查询成功",clist);
}
/**
* 添加一个学生
* @param student
* @return
*/
@PostMapping("/addStudent")
private BaseResult addStudent(@RequestBody Student student){
studentService.addStudent(student);
return BaseResult.ok("添加成功");
}
/**
* 批量删除
* @param ids
* @return
*/
@DeleteMapping("/deleteStudentBysid/{ids}")
public BaseResult deleteStudentBysid(@PathVariable("ids") String ids){
studentService.deleteStudentBysid(ids);
return BaseResult.ok("删除成功");
}
/**
* 修改第一步: 回显对象
* @param sid
* @return
*/
@GetMapping("/FindStudent/{sid}")
public BaseResult FindStudent(@PathVariable("sid") Integer sid){
Student student = studentService.FindStudent(sid);
return BaseResult.ok("查询成功",student);
}
}
- service
package com.czxy.service;
import com.czxy.domain.Classes;
import com.czxy.domain.Student;
import com.czxy.domain.StudentPi;
import com.github.pagehelper.PageInfo;
import java.util.List;
public interface StudentService {
/**
* 学生列表(分页+多条件)
* @param studentPi
* @return
*/
PageInfo<Student> FindStudentListForPageNum(StudentPi studentPi);
/**
* 查询班级信息
* @return
*/
List<Classes> Findclasses();
/**
* 添加一个学生
* @param student
* @return
*/
void addStudent(Student student);
/**
* 批量删除
* @param ids
* @return
*/
void deleteStudentBysid(String ids);
/**
* 修改第一步: 回显对象
* @param sid
* @return
*/
Student FindStudent(Integer sid);
}
- serviceImpl
package com.czxy.service.impl;
import com.czxy.domain.Classes;
import com.czxy.domain.Student;
import com.czxy.domain.StudentPi;
import com.czxy.mapper.ClassesMapper;
import com.czxy.mapper.StudentMapper;
import com.czxy.mapper.TeacherMapper;
import com.czxy.service.StudentService;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import javax.annotation.Resource;
import java.util.List;
@Service
@Transactional
public class StudentServiceImpl implements StudentService {
@Resource
private ClassesMapper classesMapper;
@Resource
private TeacherMapper teacherMapper;
@Resource
private StudentMapper studentMapper;
/**
* 学生列表(分页+多条件)
* @param studentPi
* @return
*/
@Override
public PageInfo<Student> FindStudentListForPageNum(StudentPi studentPi) {
PageHelper.startPage(studentPi.getPageNum(),studentPi.getPageSize());
// 设置姓名
if (studentPi.getSname() != null && !"" .equals(studentPi.getSname())){
studentPi.setSname("%"+studentPi.getSname()+"%");
}
List<Student> slist = studentMapper.FindStudentListForPageNum(studentPi);
PageInfo<Student> pageInfo = new PageInfo<>(slist);
return pageInfo;
}
/**
* 查询班级信息
* @return
*/
@Override
public List<Classes> Findclasses() {
List<Classes> classes = classesMapper.selectAll();
return classes;
}
/**
* 添加一个学生
* @param student
* @return
*/
@Override
public void addStudent(Student student) {
studentMapper.insertSelective(student);
}
/**
* 批量删除
* @param ids
* @return
*/
@Override
public void deleteStudentBysid(String ids) {
String[] split = ids.split(",");
for (String s : split) {
studentMapper.deleteByPrimaryKey(Integer.parseInt(s));
}
}
/**
* 修改第一步: 回显对象
* @param sid
* @return
*/
@Override
public Student FindStudent(Integer sid) {
Student student = studentMapper.FindStudent(sid);
return student;
}
}
- mapper
package com.czxy.mapper;
import com.czxy.domain.Student;
import com.czxy.domain.StudentPi;
import org.apache.ibatis.annotations.*;
import tk.mybatis.mapper.common.Mapper;
import java.util.List;
public interface StudentMapper extends Mapper<Student> {
/**
* 学生列表(分页+多条件)
* @param studentPi
* @return
*/
@Select("<script> select * from tb_student where 1=1"+
"<if test= \" studentPi.sname != null and studentPi.sname != '' \"> and sname like #{studentPi.sname} </if> "+
"<if test= \" studentPi.gender != null and studentPi.gender != '' \"> and gender=#{studentPi.gender} </if>"+
"<if test= \" studentPi.minsalary != null and studentPi.minsalary != '' and studentPi.maxsalary != null and studentPi.maxsalary != '' \"> and salary between #{studentPi.minsalary} and #{studentPi.maxsalary} </if>"+
"</script>")
@Results(id = "s1",value = {
@Result(property = "class_id",column = "class_id"),
@Result(property = "classes",column = "class_id",one = @One(select = "com.czxy.mapper.ClassesMapper.FindByClassesByCid"))
})
List<Student> FindStudentListForPageNum(@Param("studentPi") StudentPi studentPi);
@Select("select * from tb_student where sid=#{sid}")
@ResultMap("s1")
Student FindStudent(@Param("sid") Integer sid);
}
