Smart campus management system: It mainly uses grades and classes as units to perform information recording and statistical functions of teachers and students. The project adopts the idea of separating the front and back ends. The front end adopts HTML+CSS+VUE to realize page effect display, and the back end adopts SpringBoot+MybatisPlus framework to realize data storage and other services. The storage layer uses high-performance MySQL, the server uses SpringBoot's built-in Tomcat7.x, and the project construction tool uses Maven to manage jar packages and project construction.
content
Environmental preparation
framework
log in page
Home display
business module
Database background display
The administrator password is: admin
Student password is: 123456
The teacher's password is: 123456
part of the code
package com.org.myzhxy.controller;
import com.org.myzhxy.pojo.Admin;
import com.org.myzhxy.pojo.LoginForm;
import com.org.myzhxy.pojo.Student;
import com.org.myzhxy.pojo.Teacher;
import com.org.myzhxy.service.AdminService;
import com.org.myzhxy.service.StudentService;
import com.org.myzhxy.service.TeacherService;
import com.org.myzhxy.util.*;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import javax.imageio.ImageIO;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.UUID;
@Api(tags = "系统控制器")
@RestController
@RequestMapping("/sms/system")
public class SystemController {
@Autowired
private AdminService adminService;
@Autowired
private StudentService studentService;
@Autowired
private TeacherService teacherService;
/*
* 修改密码的处理器
* POST /sms/system/updatePwd/123456/admin
* /sms/system/updatePwd/{oldPwd}/{newPwd}
* 请求参数
oldpwd
newPwd
token 头
响应的数据
Result OK data= null
* */
@ApiOperation("更新用户密码的处理器")
@PostMapping("/updatePwd/{oldPwd}/{newPwd}")
public Result updatePwd(
@ApiParam("token口令") @RequestHeader("token") String token,
@ApiParam("旧密码") @PathVariable("oldPwd") String oldPwd,
@ApiParam("新密码") @PathVariable("newPwd") String newPwd
){
boolean expiration = JwtHelper.isExpiration(token);
if (expiration) {
// token过期
return Result.fail().message("token失效,请重新登录后修改密码");
}
// 获取用户ID和用类型
Long userId = JwtHelper.getUserId(token);
Integer userType = JwtHelper.getUserType(token);
oldPwd= MD5.encrypt(oldPwd);
newPwd= MD5.encrypt(newPwd);
switch (userType) {
case 1:
QueryWrapper<Admin> queryWrapper1=new QueryWrapper<>();
queryWrapper1.eq("id",userId.intValue());
queryWrapper1.eq("password",oldPwd);
Admin admin =adminService.getOne(queryWrapper1);
if (admin != null){
// 修改
admin.setPassword(newPwd);
adminService.saveOrUpdate(admin);
}else{
return Result.fail().message("原密码有误!");
}
break;
case 2:
QueryWrapper<Student> queryWrapper2=new QueryWrapper<>();
queryWrapper2.eq("id",userId.intValue());
queryWrapper2.eq("password",oldPwd);
Student student =studentService.getOne(queryWrapper2);
if (student != null){
// 修改
student.setPassword(newPwd);
studentService.saveOrUpdate(student);
}else{
return Result.fail().message("原密码有误!");
}
break;
case 3:
QueryWrapper<Teacher> queryWrapper3=new QueryWrapper<>();
queryWrapper3.eq("id",userId.intValue());
queryWrapper3.eq("password",oldPwd);
Teacher teacher =teacherService.getOne(queryWrapper3);
if (teacher != null){
// 修改
teacher.setPassword(newPwd);
teacherService.saveOrUpdate(teacher);
}else{
return Result.fail().message("原密码有误!");
}
break;
}
return Result.ok();
}
// POST /sms/system/headerImgUpload
@ApiOperation("文件上传统一入口")
@PostMapping("/headerImgUpload")
public Result headerImgUpload(
@ApiParam("头像文件") @RequestPart("multipartFile") MultipartFile multipartFile
,
HttpServletRequest request
){
String uuid = UUID.randomUUID().toString().replace("-", "").toLowerCase();
String originalFilename = multipartFile.getOriginalFilename();
int i = originalFilename.lastIndexOf(".");
String newFileName =uuid.concat(originalFilename.substring(i));
// 保存文件 将文件发送到第三方/独立的图片服务器上,
String portraitPath="C:/code/myzhxy/target/classes/public/upload/".concat(newFileName);
try {
multipartFile.transferTo(new File(portraitPath));
} catch (IOException e) {
e.printStackTrace();
}
// 响应图片的路径
String path="upload/".concat(newFileName);
return Result.ok(path);
}
@ApiOperation("通过token口令获取当前登录的用户信息的方法")
@GetMapping("/getInfo")
public Result getInfoByToken(
@ApiParam("token口令")@RequestHeader("token") String token){
boolean expiration = JwtHelper.isExpiration(token);
if (expiration) {
return Result.build(null,ResultCodeEnum.TOKEN_ERROR);
}
//从token中解析出 用户id 和用户的类型
Long userId = JwtHelper.getUserId(token);
Integer userType = JwtHelper.getUserType(token);
Map<String,Object> map =new LinkedHashMap<>();
switch (userType){
case 1:
Admin admin =adminService.getAdminById(userId);
map.put("userType",1);
map.put("user",admin);
break;
case 2:
Student student =studentService.getStudentById(userId);
map.put("userType",2);
map.put("user",student);
break;
case 3:
Teacher teacher= teacherService.getByTeacherById(userId);
map.put("userType",3);
map.put("user",teacher);
break;
}
return Result.ok(map);
}
@ApiOperation("登录的方法")
@PostMapping("/login")
public Result login(
@ApiParam("登录提交信息的form表单")@RequestBody LoginForm loginForm,
HttpServletRequest request){
// 验证码校验
HttpSession session = request.getSession();
String sessionVerifiCode = (String)session.getAttribute("verifiCode");
String loginVerifiCode = loginForm.getVerifiCode();
if("".equals(sessionVerifiCode) || null == sessionVerifiCode){
return Result.fail().message("验证码失效,请刷新后重试");
}
if (!sessionVerifiCode.equalsIgnoreCase(loginVerifiCode)){
return Result.fail().message("验证码有误,请小心输入后重试");
}
// 从session域中移除现有验证码
session.removeAttribute("verifiCode");
// 分用户类型进行校验
// 准备一个map用户存放响应的数据
Map<String,Object> map=new LinkedHashMap<>();
switch (loginForm.getUserType()){
case 1:
try {
Admin admin=adminService.login(loginForm);
if (null != admin) {
// 用户的类型和用户id转换成一个密文,以token的名称向客户端反馈
map.put("token",JwtHelper.createToken(admin.getId().longValue(), 1));
}else{
throw new RuntimeException("用户名或者密码有误");
}
return Result.ok(map);
} catch (RuntimeException e) {
e.printStackTrace();
return Result.fail().message(e.getMessage());
}
case 2:
try {
Student student =studentService.login(loginForm);
if (null != student) {
// 用户的类型和用户id转换成一个密文,以token的名称向客户端反馈
map.put("token",JwtHelper.createToken(student.getId().longValue(), 2));
}else{
throw new RuntimeException("用户名或者密码有误");
}
return Result.ok(map);
} catch (RuntimeException e) {
e.printStackTrace();
return Result.fail().message(e.getMessage());
}
case 3:
try {
Teacher teahcer =teacherService.login(loginForm);
if (null != teahcer) {
// 用户的类型和用户id转换成一个密文,以token的名称向客户端反馈
map.put("token",JwtHelper.createToken(teahcer.getId().longValue(), 3));
}else{
throw new RuntimeException("用户名或者密码有误");
}
return Result.ok(map);
} catch (RuntimeException e) {
e.printStackTrace();
return Result.fail().message(e.getMessage());
}
}
return Result.fail().message("查无此用户");
}
@ApiOperation("获取验证码图片")
@GetMapping("/getVerifiCodeImage")
public void getVerifiCodeImage(HttpServletRequest request, HttpServletResponse response){
// 获取图片
BufferedImage verifiCodeImage = CreateVerifiCodeImage.getVerifiCodeImage();
// 获取图片上的验证码
String verifiCode =new String( CreateVerifiCodeImage.getVerifiCode());
// 将验证码文本放入session域,为下一次验证做准备
HttpSession session = request.getSession();
session.setAttribute("verifiCode",verifiCode);
// 将验证码图片响应给浏览器
try {
ImageIO.write(verifiCodeImage,"JPEG",response.getOutputStream());
} catch (IOException e) {
e.printStackTrace();
}
}
}
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