怎么创建项目就不说了，可以参考:https://www.cnblogs.com/braveym/p/11321559.html
打开本地的mysql数据库，创建表
CREATE TABLE `users` ( `id` int(11) NOT NULL AUTO_INCREMENT, `name` varchar(255) DEFAULT NULL, `age` int(11) DEFAULT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8;
在项目里面新建Users.java类
package com.gongspringmvcmybatis.pojo; public class Users { private Integer id; private String name; private Integer age; 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 Integer getAge() { return age; } public void setAge(Integer age) { this.age = age; } }
创建 mapper 接口以及映射配置文件
接口
package com.gongspringmvcmybatis.mapper; import com.gongspringmvcmybatis.pojo.Users; public interface UsersMapper { void insertUser(Users users); }
映射文件
<?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.gongspringmvcmybatis.mapper.UsersMapper"> <insert id="insertUser" parameterType="users"> insert into users(name,age) values(#{name},#{age}) </insert> </mapper>
创建业务层 
package com.gongspringmvcmybatis.service; import com.gongspringmvcmybatis.pojo.Users; public interface UsersService { void addUser(Users users); }
package com.gongspringmvcmybatis.service.impl; import com.gongspringmvcmybatis.mapper.UsersMapper; import com.gongspringmvcmybatis.pojo.Users; import com.gongspringmvcmybatis.service.UsersService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; @Service @Transactional public class UsersServiceImpl implements UsersService { @Autowired private UsersMapper usersMapper; @Override public void addUser(Users users) { this.usersMapper.insertUser(users); } }
创建 Controller
package com.gongspringmvcmybatis.controller; import com.gongspringmvcmybatis.pojo.Users; import com.gongspringmvcmybatis.service.UsersService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; @Controller @RequestMapping("/users") public class UsersController { @Autowired private UsersService usersService; /** * 页面跳转 */
@ResponseBody
@RequestMapping("/{page}")
public String showPage(@PathVariable String page){ return page; } /** * 添加用户 */ @RequestMapping("/addUser") public String addUser(Users users){ this.usersService.addUser(users); return "ok"; } }
新建input.html页面文件
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>添加用户</title>
</head>
<body>
<form th:action="@{/users/addUser}" method="post">
用户姓名：<input type="text" name="name"/><br/>
用户年龄：<input type="text" name="age"/><br/>
<input type="submit" value="确定"/><br/>
</form>
</body>
创建ok.html页面
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>操作提示页面</title>
</head>
<body>
操作成功！！！
</body>
</html>
创建启动类
package com.gongspringmvcmybatis; import org.mybatis.spring.annotation.MapperScan; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication @MapperScan("com.gongspringmvcmybatis.mapper") //@MapperScan 用户扫描MyBatis的Mapper接口 public class App { public static void main(String[] args) { SpringApplication.run(App.class, args); } }
运行启动类
浏览器打印出这个结果，具体原因我也不清楚了