使用SpringBoot+JSP完成一对多项目案例

其他 2018-09-11 18:58:03 阅读次数: 0

使用SpringBoot开发项目效率非常高，但需要熟练掌握Maven工具的使用技巧，SpringBoot的将所有需要集成的框架依赖都维护好了，我们只需要在ＰＯＭ中引用父ＰＯＭ文件即可，如果还需要集成其他框架，比如RabbitMQ,Dubbo，需要再添加依赖。如下案例演示如何使用SpringBoot完成一对多的博文管理案例。

一、新建Maven webapp项目（可以使用Eclipse,IntelliJ IDEA工具，甚至Editplus）
这里写图片描述

二、修改POM.xml文件

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.test</groupId>
  <artifactId>Proj_Blog</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>Proj_Blog Maven Webapp</name>
  <url>http://maven.apache.org</url>

    <!-- 父类POM文件 -->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.9.RELEASE</version>
        <relativePath/>
    </parent>

      <dependencies>
        <!-- SpringBoot启动Web -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.3.0</version>
        </dependency>
        <!-- 支持在线开发部署 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
            <scope>true</scope>
        </dependency>
        <!-- 数据源 -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.11</version>
            <exclusions>
                <exclusion>  
                    <groupId>com.alibaba</groupId>
                    <artifactId>jconsole</artifactId>
                </exclusion>  
                <exclusion>
                    <groupId>com.alibaba</groupId>
                    <artifactId>tools</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <!-- SpringBoot对JSP支持依赖 -->
        <dependency> 
            <groupId>org.apache.tomcat.embed</groupId> 
            <artifactId>tomcat-embed-jasper</artifactId> 
            <scope>provided</scope> 
        </dependency> 
        <dependency>
            <groupId>javax.servlet</groupId> 
            <artifactId>jstl</artifactId> 
        </dependency>
        <!-- Mysql驱动 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>

        <!-- 分页插件 -->
        <dependency>
            <groupId>com.github.pagehelper</groupId>
            <artifactId>pagehelper-spring-boot-starter</artifactId>
            <version>1.1.2</version>
        </dependency>

      </dependencies>

  <build>
    <finalName>Proj_Blog</finalName>
  </build>
</project>

三、在/src/main/resources目录下新建application.properties配置文件

#SpringBoot服务端口配置
server.port=6060
server.context-path=/

#spring.resources.static-locations=/css,/images,/img,/js

#SpringMVC JSP目录配置
spring.mvc.view.prefix=/WEB-INF/jsp/
spring.mvc.view.suffix=.jsp

#Http编码配置   
spring.http.encoding.force=true
spring.http.encoding.charset=UTF-8
spring.http.encoding.enabled=true

#Rabbitmq配置     
#spring.rabbitmq.host=127.0.0.1
#spring.rabbitmq.port=5672
#spring.rabbitmq.username=guest
#spring.rabbitmq.password=guest
#spring.rabbitmq.virtual-host=/

#数据源配置    
spring.datasource.name=w1
spring.datasource.url=jdbc:mysql://localhost:3306/w1?useUnicode=true&characterEncoding=utf8
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.maxActive=20
spring.datasource.initialSize=1
spring.datasource.maxWait=60000
spring.datasource.minIdle=1

#Mybatis实体类配置    
mybatis.mapper-locations=classpath:mapper/*.xml

#Dubbo 1.0.1配置
#spring.dubbo.appname=dubbo-consumer
#spring.dubbo.registry=zookeeper://192.168.137.1:2181
#spring.dubbo.protocol=dubbo
#spring.dubbo.port=20880


#日志配置
logging.file=d:/springboot.log
logging.level.com.test.mapper=INFO
logging.level.com.hk.servlet=DEBUG
logging.level.com.test.service.impl=DEBUG

四、设计博文对应的ＳＱＬ

create table t_blog (id int auto_increment primary key,
    name varchar(40),dt date,author varchar(40),
    content varchar(500),status int,typeid int);

create table t_type(id int auto_increment primary key,
    name varchar(40));

insert into t_type(name) values('Java');
insert into t_type(name) values('Android');
insert into t_type(name) values('Python');

insert into t_blog(name,dt,author,content,status,typeid)
    values('Java','2018-08-08','Sun','Sun Java',0,1);

insert into t_blog(name,dt,author,content,status,typeid)
    values('Android','2018-09-08','Sun','Sun Java',0,2);

五、在/src/main/resources目录下新建mapper文件夹，在mapper文件夹中新建mapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
    PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
    "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.test.blog.mapper.BlogMapper">
    <select id="findBlog" resultType="com.test.blog.bean.BlogInfo">
        select b.*,t.name typeName from t_blog b,t_type t where b.typeid=t.id
            and (b.name like '%${query}%' or b.content like '%${query}%')
    </select>
    <select id="findBlogById" resultType="com.test.blog.bean.BlogInfo">
        select b.*,t.name typeName from t_blog b,t_type t where b.typeid=t.id
            and b.id=#{id}
    </select>
    <select id="findType" resultType="com.test.blog.bean.TypeInfo">
        select t.* from t_type t
    </select>
    <insert id="saveBlog" parameterType="com.test.blog.bean.BlogInfo">
        insert into t_blog(name,author,dt,status,typeid,content) values 
            (#{name},#{author},#{dt},#{status},#{typeId},#{content})
    </insert>
    <update id="updateBlog" parameterType="com.test.blog.bean.BlogInfo">
        update t_blog set name#{name},author=#{author},dt=#{dt},status=#{status},
            typeid=#{typeId},content=#{content} where id=#{id}
    </update>
    <delete id="deleteBlog" parameterType="Integer">
        delete from t_blog where id=#{id}
    </delete>
</mapper>

六、在/src/main目录下新建java文件夹，在/src/main/java新建Java Package 　com.test.blog.mapper

package com.test.blog.mapper;

import java.util.List;

import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;

import com.test.blog.bean.BlogInfo;
import com.test.blog.bean.TypeInfo;

@Mapper
public interface BlogMapper {
    public List<BlogInfo> findBlog(@Param("query") String query);
    public List<TypeInfo> findType();
    public void saveBlog(BlogInfo bi);
    public void updateBlog(BlogInfo bi);
    public void deleteBlog(@Param("id") Integer id);
    public BlogInfo findBlogById(@Param("id") Integer id);
}

七、在/src/main/java目录下新建Pakcage com.test.blog.service

package com.test.blog.service;

import java.util.List;

import org.apache.ibatis.annotations.Param;

import com.test.blog.bean.BlogInfo;
import com.test.blog.bean.TypeInfo;

public interface IBlogService {
    public List<BlogInfo> findBlog(String query);
    public List<TypeInfo> findType();
    public void saveBlog(BlogInfo bi);
    public void updateBlog(BlogInfo bi);
    public void deleteBlog(Integer id);
    public BlogInfo findBlogById(Integer id);
}

八、在/src/main/java目录下新建Pakcage com.test.blog.service.impl

package com.test.blog.service.impl;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.test.blog.bean.BlogInfo;
import com.test.blog.bean.TypeInfo;
import com.test.blog.mapper.BlogMapper;
import com.test.blog.service.IBlogService;

@Service //Component Resouce
public class BlogServiceImpl implements IBlogService{
    @Autowired
    private BlogMapper mapper;

    @Override
    @Transactional(readOnly=true)
    public List<BlogInfo> findBlog(String query) {
        return mapper.findBlog(query);
    }

    @Override
    public List<TypeInfo> findType() {
        return mapper.findType();
    }

    @Override
    public void saveBlog(BlogInfo bi)
    {
        mapper.saveBlog(bi);
    }

    @Override
    public void updateBlog(BlogInfo bi)
    {
        mapper.updateBlog(bi);
    }

    @Override
    public void deleteBlog(Integer id)
    {
        mapper.deleteBlog(id);
    }

    @Override
    public BlogInfo findBlogById(Integer id)
    {
        return mapper.findBlogById(id);
    }
}

九、在/src/main/java目录下新建Pakcage com.test.blog.ctrl

package com.test.blog.ctrl;


import java.util.List;

import javax.servlet.http.HttpServletRequest;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import com.test.blog.PageUtil;
import com.test.blog.bean.BlogInfo;
import com.test.blog.bean.TypeInfo;
import com.test.blog.service.IBlogService;

@Controller
public class BlogCtrl {
    @Autowired
    private IBlogService serv;

    /**
     * 跳转到列表的URL对应方法
     * @param req 请求对象
     * @param page 当前页参数
     * @param rows 每页显示记录数
     * @return
     */
    @RequestMapping("/init")
    public String init(HttpServletRequest req,Integer page,Integer rows)
    {
        if(page == null)
            page = 1;
        if(rows == null)
            rows = 4;
        //取查询条件
        String query = req.getParameter("query");

        //1.定义执行SQL结果集的指令
        PageHelper.startPage(page, rows);
        //2.执行Mybatis查询
        List<BlogInfo> lst = serv.findBlog(query);
        //3.封装PageInfo对象
        PageInfo pi = new PageInfo(lst);

        List pageList = pi.getList();
        Long total = pi.getTotal();

        String url = "/init";
        PageUtil pu = new PageUtil(url,page,rows,total);
        String htmlPage = pu.toHtml();

        req.setAttribute("list", pageList);
        req.setAttribute("pageHtml", htmlPage);
        req.setAttribute("query", query);
        return "blog2";
    }

    /**
     * 当前台点击新建博文，跳转的URL对应的方法
     * @param req 请求对象
     * @return
     */
    @RequestMapping("/addblog")
    public String addblog(HttpServletRequest req)
    {
        List<TypeInfo> types = serv.findType();
        req.setAttribute("types", types);
        return "addblog";
    }

    /**
     * 当前台点击保存博文，对应URL的方法
     * @param req 请求对象
     * @param bi 从请求参数中包装BlogInfo对象
     * @return
     */
    @RequestMapping("/saveblog")
    public String saveblog(HttpServletRequest req,BlogInfo bi)
    {
        Integer id = bi.getId();
        if(id == null)//id为空，代表新建博文
            serv.saveBlog(bi);
        else//id不为空，代表修改博文
            serv.updateBlog(bi);

        //跳转到分页列表
        String page = init(req,1,4);
        return page;
    }

    /**
     * 删除博文的方法
     * @param req 请求对象
     * @param ids 删除的ID，ID以逗号分隔
     * @return
     */
    @ResponseBody
    @RequestMapping("/deleteblog")
    public boolean deleteblog(HttpServletRequest req,Integer[] ids)
    {
        for(Integer id:ids)
        {
            if(id != null)
                serv.deleteBlog(id);
        }
        return true;
    }

    /**
     * 当前台点击修改博文时，对应URL的方法
     * @param req 请求对象
     * @param id 从前台传入的ID
     * @return
     */
    @RequestMapping("/editblog")
    public String editblog(HttpServletRequest req,Integer id)
    {
        BlogInfo bi = serv.findBlogById(id);
        req.setAttribute("blog", bi);

        List<TypeInfo> lst = serv.findType();
        for(TypeInfo t:lst)
        {
            if(bi.getTypeId().equals(t.getId().toString()))
            {
                t.setSelected("selected");
            }
        }
        req.setAttribute("types", lst);
        return "addblog";
    }
}

十、在/src/main/java目录下新建Pakcage com.test.blog.bean，新建实体类

package com.test.blog.bean;

import java.io.Serializable;
import java.sql.Date;

public class BlogInfo implements Serializable{
    private Integer id = null;
    private String name = null;
    private Date dt = null;
    private String author = null;
    private String content = null;
    private String typeId = null;
    private Integer status = null;
    private String typeName = null;
    public Integer getId() {
        return id;
    }
    public void setId(Integer id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public Date getDt() {
        return dt;
    }
    public void setDt(Date dt) {
        this.dt = dt;
    }
    public String getAuthor() {
        return author;
    }
    public void setAuthor(String author) {
        this.author = author;
    }
    public String getContent() {
        return content;
    }
    public void setContent(String content) {
        this.content = content;
    }
    public String getTypeId() {
        return typeId;
    }
    public void setTypeId(String typeId) {
        this.typeId = typeId;
    }
    public Integer getStatus() {
        return status;
    }
    public void setStatus(Integer status) {
        this.status = status;
    }
    public String getTypeName() {
        return typeName;
    }
    public void setTypeName(String typeName) {
        this.typeName = typeName;
    }

}

package com.test.blog.bean;

import java.io.Serializable;
import java.sql.Date;

public class TypeInfo implements Serializable{
    private Integer id = null;
    private String name = null;

    private String selected = "";

    public Integer getId() {
        return id;
    }
    public void setId(Integer id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getSelected() {
        return selected;
    }
    public void setSelected(String selected) {
        this.selected = selected;
    }
}

十一、在/src/main/webapp新建jscss目录，设计CSS/JS

@charset "utf-8";
/* CSS Document */

body{
    margin:0 auto;
    padding:0;  
    font-family:'Microsoft YaHei', arial, tahoma, \5b8b\4f53, sans-serif;
    font-size: 14px;
}
a {
    text-decoration:none;
    color:black;
}
div{
    margin:0 auto;
}
#pagediv{
    margin:0 auto;
    text-align:center;
    valign:middle;
    background-color: yellow;
    height:30px;
    line-height: 30px;
    border:1px solid black
}

table {
    width:100%;
    font-family: verdana,arial,sans-serif;
    font-size:11px;
    color:#333333;
    border-width: 1px;
    border-color: #666666;
    border-collapse: collapse;
}
table tr:nth-child(odd) td{
    background: #ccc;
}
table tr:hover td{
    background: pink;

}
table th {
    border-width: 1px;
    padding: 8px;
    border-style: solid;
    border-color: #666666;
    background-color: yellow;
}
table th {
    font-size:15px;
    color:blue;
}
table td {
    border-width: 1px;
    padding: 8px;
    border-style: solid;
    border-color: #666666;
    background-color: #ffffff;
}

十二、设计列表页面blog.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link rel="stylesheet" type="text/css" href="/jscss/base.css">
<script type="text/javascript" src="/jscss/jquery.min.js"></script>
<title>博文列表</title>
<script>
    function addblog()
    {
        window.open("/addblog","_self");
        //window.open("/addblog","_blank");
        //location.href="/addblog";
    }
    function deleteblog()
    {
        var delid='';
        $("input[name='chkid']:checked").each(function(){
            delid=delid+this.value+',';
        });
        $.ajax({
            url:'/deleteblog?ids='+delid,
            success:function(data)
            {
                alert(data);
                window.open("/init","_self");
            }
        })
    }
    function selectAll()
    {
        $("input[name='chkid']").each(function(){
            this.checked=!this.checked;
        });
    }
    function doquery()
    {
        listfrm.submit();
    }
</script>
</head>
<body>
<form id="listfrm" action="/init">

<input type="text" id="query" name="query" value="${query}"/>
<input type="button" value="查询" onclick="doquery()"/>
<table>
    <tr>
        <th><input type="checkbox" id="chkall" name="chkall" onclick="selectAll()"/>编号</th>
        <th>名称</th>
        <th>作者</th>
        <th>分类</th>
        <th>日期</th>
        <th>状态</th>
        <th>内容</th>
        <th>操作</th>
    </tr>
<c:forEach items="${list }" var="blog">
    <tr>
        <td><input type="checkbox" id="chkid" name="chkid" value="${blog.id }"/>${blog.id }</td>
        <td>${blog.name }</td>
        <td>${blog.author }</td>
        <td>${blog.typeName }</td>
        <td>${blog.dt }</td>
        <td>${blog.status }</td>
        <td>${blog.content }</td>
        <td><a href="/editblog?id=${blog.id }">修改</a></td>
    </tr>
</c:forEach>

</table>
${pageHtml}
<input type="button" value="添加博文" onclick="addblog()"/>
<input type="button" value="删除博文" onclick="deleteblog()"/>

</form>
</html>

添加页面

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link rel="stylesheet" type="text/css" href="/jscss/base.css">
<script type="text/javascript" src="/jscss/jquery.min.js"></script>
<title>博文列表</title>
<script>
    function dosave()
    {
        blogfrm.submit();
    }
    function dolist()
    {
        location.href="/init";
    }
</script>
</head>
<body>
<form id="blogfrm" action="/saveblog">
    <input type="hidden" id="status" name="status" value="${blog.status}"/>
    <table>
        <tr>
            <td>博文名称</td>
            <td><input type="text" id="name" name="name" value="${blog.name}"></td>
        </tr>
        <tr>
            <td>博文作者</td>
            <td><input type="text" id="author" name="author" value="${blog.author}"></td>
        </tr>
        <tr>
            <td>博文时间</td>
            <td><input type="text" id="dt" name="dt" value="${blog.dt}"></td>
        </tr>
        <tr>
            <td>博文内容</td>
            <td><input type="text" id="content" name="content" value="${blog.content}"></td>
        </tr>
        <tr>
            <td>博文分类</td>
            <td>
                <select id="typeId" name="typeId">
                    <c:forEach items="${types }" var="t">
                        <option value="${t.id }" ${t.selected }>${t.name }</option>
                    </c:forEach>
                </select>
            </td>
        </tr>
    </table>
    <input type="button" value="提交" onclick="dosave()"/>
    <input type="button" value="返回" onclick="dolist()"/>
</form>
</html>

十三、分页工具类

package com.test.blog;

public class PageUtil {
    private Integer page = 1;//默认显示第一页
    private Integer rows = 4;//每页显示记录数
    private Long total = null;//总行数
    private String url = null;//点击页码跳转url

    public PageUtil(String url,Integer page,Integer rows,Long total)
    {
        this.url = url;
        this.page = page;
        this.rows = rows;
        this.total = total;
    }

    public String toHtml()
    {
        StringBuffer sb = new StringBuffer();
        //计算总页数
        int pages = 0;
        if(total % rows == 0)
            pages = total.intValue() / rows;
        else
            pages = (total.intValue() / rows) + 1;
        sb.append("<div id='pagediv'>\r\n");
        String firstUrl = null;
        if(url.indexOf("?")>0)
            firstUrl = url + "&page=1&rows="+rows;
        else
            firstUrl = url + "?page=1&rows="+rows;
        sb.append("<a href='"+firstUrl+"'>首页</a>\r\n");
        String backUrl = null;
        if(url.indexOf("?")>0)
            backUrl = url + "&page="+(page==1?1:(page-1))+"&rows="+rows;
        else
            backUrl = url + "?page="+(page==1?1:(page-1))+"&rows="+rows;
        sb.append("<a href='"+backUrl+"'>上一页</a>\r\n");
        for(int i=1;i<=pages;i++)
        {
            String pageUrl = null;
            if(url.indexOf("?")>0)
                pageUrl = url + "&page="+i+"&rows="+rows;
            else
                pageUrl = url + "?page="+i+"&rows="+rows;
            if(i == page)
                sb.append("<a href='"+pageUrl+"'><b><font color='red'>"+i+"</font></b></a>\r\n");
            else
                sb.append("<a href='"+pageUrl+"'>"+i+"</a>\r\n");
        }
        String nextUrl = null;
        if(url.indexOf("?")>0)
            nextUrl = url + "&page="+(page==pages?pages:(page+1))+"&rows="+rows;
        else
            nextUrl = url + "?page="+(page==pages?pages:(page+1))+"&rows="+rows;
        sb.append("<a href='"+nextUrl+"'>下一页</a>\r\n");
        String lastUrl = null;
        if(url.indexOf("?")>0)
            lastUrl = url + "&page="+pages+"&rows="+rows;
        else
            lastUrl = url + "?page="+pages+"&rows="+rows;
        sb.append("<a href='"+lastUrl+"'>尾页</a>\r\n");
        sb.append("&nbsp;&nbsp;&nbsp;&nbsp;第"+page+"/"+pages+"页\r\n");
        sb.append("&nbsp;&nbsp;&nbsp;&nbsp;共"+total+"条记录\r\n");
        sb.append("</div>\r\n");
        return sb.toString();
    }
}

十四、SpringBoot启动类

package com.test.blog;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class Starter {

    public static void main(String[] args) {
        SpringApplication.run(Starter.class, args);

    }

}

界面效果
这里写图片描述

这里写图片描述

代码下载地址
https://pan.baidu.com/s/1-WHdEZHQvAZIg7W5prrtXg

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