Spring boot(三)整合mybaties+thymeleaf实现基础crud

工程结构:

　　

　　首先在pom文件中引入依赖

<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.liu</groupId>
    <artifactId>spring-boot-mybatis</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>spring-boot-mybatis</name>
    <url>http://maven.apache.org</url>

    <!-- spring boot parent节点，引入这个之后，在下面和spring boot相关的就不需要引入版本了; -->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.4.1.RELEASE</version>
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <!-- 指定一下jdk的版本 ，这里我们使用jdk 1.8 ,默认是1.6 -->
        <java.version>1.8</java.version>
    </properties>

    <dependencies>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <version>1.3.0.RELEASE</version>
            <optional>true</optional>
        </dependency>

        <!-- web支持: 1、web mvc; 2、restful; 3、jackjson支持; 4、aop ........ -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <!-- mysql 数据库驱动. -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>

        <!-- spring-boot mybatis依赖： 请不要使用1.0.0版本，因为还不支持拦截器插件， 1.1.1 是博主写帖子时候的版本，大家使用最新版本即可 -->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.1.1</version>
        </dependency>

        <!-- 添加thymeleaf模板引擎 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
            <version>1.5.2.RELEASE</version>
        </dependency>
    </dependencies>
</project>

　　在启动类中开启自动扫包

 package com.liu.spring_boot_mybatis;

 import org.mybatis.spring.annotation.MapperScan;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;

 @SpringBootApplication
 @MapperScan("com.liu.*")//扫描：该包下相应的class,主要是MyBatis的持久化类.
 public class App {
     public static void main(String[] args) {
         SpringApplication.run(App.class, args);
     }
 }

　　在application.properties中配置mysql和thymeleaf

########################################################
###datasource
########################################################
spring.datasource.url = jdbc:mysql://localhost:/blog?useUnicode=true&characterEncoding=utf-
spring.datasource.username = root
spring.datasource.password =
spring.datasource.driverClassName = com.mysql.jdbc.Driver
spring.datasource.max-active=
spring.datasource.max-idle=
spring.datasource.min-idle=
spring.datasource.initial-size=

########################################################
###thymeleaf
########################################################
spring.thymeleaf.cache=false
spring.thymeleaf.check-template-location=true
spring.thymeleaf.suffix=.html
spring.thymeleaf.encoding=UTF-
spring.thymeleaf.content-type=text/html
spring.thymeleaf.mode=HTML5
spring.thymeleaf.prefix=classpath:/templates/

　　根据数据库中表类型创建实体类

 package com.liu.spring_boot_mybatis.bean;

 public class Userinfo {
     private int id;
     private String username;
     private String password;
     public int getId() {
         return id;
     }
     public void setId(int id) {
         this.id = id;
     }
     public String getUsername() {
         return username;
     }
     public void setUsername(String username) {
         this.username = username;
     }
     public String getPassword() {
         return password;
     }
     public void setPassword(String password) {
         this.password = password;
     }

 }

　　根据业务创建mapper文件,本次整合只整合了crud的基础操作示例

 package com.liu.spring_boot_mybatis.mapper;

 import org.apache.ibatis.annotations.*;

 import com.liu.spring_boot_mybatis.bean.Userinfo;

 import java.util.List;

 @Mapper
 public interface UserinfoMapper {

     @Select("select * from userinfo")
     public List<Userinfo> Finduser(Userinfo userinfo);

     // #{id} 参数占位符
     @Select("select * from userinfo where id=#{id}")
     public Userinfo getid(int id);

     @Insert("insert into userinfo(id,username,password) values(#{id},#{username},#{password})")
     public int insert(Userinfo userinfo);

     @Update("update userinfo set username=#{username},password=#{password} where id=#{id} ")
     public int update(Userinfo userinfo);

     @Delete("delete from userinfo where id=#{id}")
     public  int delete(int id);

 }

　　service

 package com.liu.spring_boot_mybatis.service;

 import java.util.List;

 import org.apache.ibatis.annotations.Select;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;

 import com.liu.spring_boot_mybatis.bean.Userinfo;
 import com.liu.spring_boot_mybatis.mapper.UserinfoMapper;

 @Service
 public class UserinfoService {
     @Autowired
     private UserinfoMapper userinfoMapper;

     public List<Userinfo>  Finduser(Userinfo userinfo){return userinfoMapper.Finduser(userinfo);}
     public Userinfo getid(int id ) {
         return userinfoMapper.getid(id);
     }
     public  int insert(Userinfo userinfo) {
         return userinfoMapper.insert(userinfo);
     }
     public  int update(Userinfo userinfo){return  userinfoMapper.update(userinfo);}
     public  int delete(int id){return  userinfoMapper.delete(id);}
 }

　　Controller

 package com.liu.spring_boot_mybatis.controller;

 import java.util.ArrayList;
 import java.util.List;

 import javax.servlet.http.HttpServletRequest;

 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;

 import com.liu.spring_boot_mybatis.bean.Userinfo;
 import com.liu.spring_boot_mybatis.service.UserinfoService;

 @Controller
 public class UserinfoController {

     @Autowired
     private UserinfoService usService;

     //查询全部
     @RequestMapping(value="/Finduser")
     public String Finduser(Model model, Userinfo userinfo) {
         List<Userinfo> list = new ArrayList<>();
         list = usService.Finduser(userinfo);
         model.addAttribute("list", list);
         model.addAttribute("contens",usService.Finduser(userinfo));
         return "list";

     }

     @RequestMapping(value="getid")
     public String getid(Model model, int id) {
         Userinfo Userinfo = usService.getid(id);
         model.addAttribute("user",Userinfo);
         return "userEdit";
     }

     @RequestMapping(value="edit")
     public  String update(Userinfo user){
         this.usService.update(user);
         return "redirect:/Finduser";
     }

     @RequestMapping(value="delete")
     public  String delete(int id){
         this.usService.delete(id);
         return "redirect:/Finduser";
     }

     //增加跳转
     @RequestMapping(value="toAdd")
     public String  add()
     {
         return  "userAdd";
     }

     @RequestMapping(value="/insert")
     public String insert(Model model,Userinfo userinfo) {
         this.usService.insert(userinfo);
         return "redirect:/Finduser";
     }
 }

　　　编写html 注意static,默认放的是静态文件例如css,js,在templates中放的是html模板,html引入静态资源的时候默认路径是/根目录下的

　　list.html

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8"/>
    <title>userList</title>
    <link rel="stylesheet" th:href="@{/bootstrap.css}"></link>
</head>
<body class="container">
<br/>
<h1>用户列表</h1>
<br/><br/>
<div class="with:80%">
    <table class="table table-hover">
        <thead>
        <tr>
            <th>#</th>
            <th>User Name</th>
            <th>Password</th>
            <th>Edit</th>
            <th>Delete</th>
        </tr>
        </thead>
        <tbody>
        <tr  th:each="list : ${list}">
            <th scope="row" th:text="${list.id}">1</th>
            <td th:text="${list.username}">neo</td>
            <td th:text="${list.password}">Otto</td>
            <td><a th:href="@{/getid(id=${list.id})}">edit</a></td>
            <td><a th:href="@{/delete(id=${list.id})}">delete</a></td>
        </tr>
        </tbody>
    </table>
</div>
<div class="form-group">
    <div class="col-sm-2 control-label">
        <a href="/toAdd" th:href="@{/toAdd}" class="btn btn-info">add</a>
    </div>
</div>

</body>
</html>

　　edit.html

 <!DOCTYPE html>
 <html lang="en" xmlns:th="http://www.thymeleaf.org">
 <head>
     <meta charset="UTF-8"/>
     <title>user</title>
     <link rel="stylesheet" th:href="@{/bootstrap.css}"></link>
 </head>
 <body class="container">
 <br/>
 <h1>修改用户</h1>
 <br/><br/>
 <div class="with:80%">
     <form class="form-horizontal"   th:action="@{/edit}" th:object="${user}"  method="post">
         <input type="hidden" name="id" th:value="*{id}" />
         <div class="form-group">
             <label for="username" class="col-sm-2 control-label">userName</label>
             <div class="col-sm-10">
                 <input type="text" class="form-control" name="username"  id="username" th:value="*{username}" placeholder="userName"/>
             </div>
         </div>
         <div class="form-group">
             <label for="password" class="col-sm-2 control-label" >Password</label>
             <div class="col-sm-10">
                 <input type="password" class="form-control" name="password" id="password"  th:value="*{password}" placeholder="Password"/>
             </div>
         </div>
         <div class="form-group">
             <div class="col-sm-offset-2 col-sm-10">
                 <input type="submit" value="Submit" class="btn btn-info" />
                 &nbsp; &nbsp; &nbsp;
                 <a href="/Finduser" th:href="@{/Finduser}" class="btn btn-info">Back</a>
             </div>

         </div>
     </form>
 </div>
 </body>
 </html>

　　add.html

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8"/>
    <title>user</title>
    <link rel="stylesheet" th:href="@{/bootstrap.css}"></link>
</head>
<body class="container">
<br/>
<h1>添加用户</h1>
<br/><br/>
<div class="with:80%">
    <form class="form-horizontal"   th:action="@{/insert}"  method="post">
        <div class="form-group">
            <label for="username" class="col-sm-2 control-label">username</label>
            <div class="col-sm-10">
                <input type="text" class="form-control" name="username"  id="username" placeholder="username"/>
            </div>
        </div>
        <div class="form-group">
            <div class="col-sm-10">
                <label for="password" class="col-sm-2 control-label" >Password</label>
                <input type="password" class="form-control" name="password" id="password" placeholder="Password"/>
            </div>
        </div>
        <div class="form-group">
            <div class="col-sm-offset-2 col-sm-10">
                <input type="submit" value="Submit" class="btn btn-info" />
                &nbsp; &nbsp; &nbsp;
                <input type="reset" value="Reset" class="btn btn-info" />
            </div>

        </div>
    </form>
</div>
</body>
</html>

　　css太多不贴了

　　直接测试

　　

　　大功告成~

　源码地址:https://github.com/liu119631/spring-boot