一、前言

记得刚接触SpringBoot时，大吃一惊，世界上居然还有这么省事的框架，立马感叹：SpringBoot是世界上最好的框架。哈哈！

主要给大家介绍了关于springboot整合Mybatis。

二、springboot整合Mybatis

1、pom文件 依赖引入

org.springframework.boot spring-boot-starter-parent 2.1.8.RELEASE  org.springframework.boot  spring-boot-starter-test  test  org.mybatis.spring.boot  mybatis-spring-boot-starter  1.1.1  mysql  mysql-connector-java  5.1.38  org.springframework.boot  spring-boot-starter-web

2、 application.yml 新增配置

spring: datasource: url: jdbc:mysql://localhost:3306/yys_springboot_mybatis username: root password: 123456 driver-class-name: com.mysql.jdbc.Driver

3、UserEntity.java

/** * 用户管理 * Entity * @author yys */public class UserEntity implements Serializable { private Long id; private String name; private Integer age; private Byte status; @JsonFormat(pattern="yyyy-MM-dd HH:mm:ss", timezone="GMT+8") private Date createTime; @JsonFormat(pattern="yyyy-MM-dd HH:mm:ss", timezone="GMT+8") private Date updateTime; public Long getId() { return id; } public void setId(Long 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; } public Byte getStatus() { return status; } public void setStatus(Byte status) { this.status = status; } public Date getCreateTime() { return createTime; } public void setCreateTime(Date createTime) { this.createTime = createTime; } public Date getUpdateTime() { return updateTime; } public void setUpdateTime(Date updateTime) { this.updateTime = updateTime; }}

4、UserController.java

/** * 用户管理 * Controller * @author yys */@RestController@RequestMapping("/user")public class UserController { @Autowired private UserService userService; @RequestMapping("/add") public String addUser(String userName, Integer age) { return userService.addUser(userName, age) ? "success" : "fail"; } @RequestMapping("/get") public UserEntity getUserByName(String userName) { return userService.getUserByName(userName); }}

5、UserService.java

/** * 用户管理 * Service * @author yys */@Servicepublic class UserService { @Autowired private UserMapper userMapper; public boolean addUser(String userName, Integer age) { return userMapper.insert(userName, age) > 0 ? true : false; } public UserEntity getUserByName(String userName) { return userMapper.findByName(userName); }}

6、UserMapper.java

/** * 用户管理 * Mapper * @author yys */public interface UserMapper { @Select("SELECT id, user_name AS name, age, status, create_time AS createTime, update_time AS updateTime FROM yys_user WHERE user_name = #{name}") UserEntity findByName(@Param("name") String name); @Insert("INSERT INTO yys_user VALUES (NULL, #{name}, #{age}, 1, NOW(), NOW())") int insert(@Param("name") String name, @Param("age") Integer age);}

7、启动类

@SpringBootApplication@MapperScan("com.yys.mapper")public class YysApp { public static void main(String[] args) {  SpringApplication.run(YysApp.class, args); }}

8、初始化sql文件

CREATE TABLE `yys_user` ( `id` bigint(11) NOT NULL AUTO_INCREMENT COMMENT 'ID，自增列', `user_name` varchar(32) NOT NULL COMMENT '用户名', `age` int(11) NOT NULL COMMENT '用户年龄', `status` tinyint(2) NOT NULL DEFAULT '1' COMMENT '状态：-1-删除；1-正常；', `create_time` datetime NOT NULL COMMENT '创建时间', `update_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间', PRIMARY KEY (`id`)) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;

9、测试

http://localhost:8080/user/add?userName=yys&age=18

a、页面结果 - 如下图所示 ：

_b、数据库结果 - 如下图所示 ：_

http://localhost:8080/user/get?userName=yys

a、页面结果 - 如下图所示 ：