5分钟快速学会spring boot整合Mybatis的方法

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!

下面这篇文章主要给大家介绍了关于springboot整合Mybatis。在此记录下,分享给大家。

二、springboot整合Mybatis

 ​

1、pom文件 依赖引入

<parent>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-parent</artifactId>

<version>2.1.8.RELEASE</version>

<relativePath />

</parent>

<dependencies>

<!-- SpringBoot 测试 -->

<dependency>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-test</artifactId>

<scope>test</scope>

</dependency>

<!-- mybatis 支持 SpringBoot -->

<dependency>

<groupId>org.mybatis.spring.boot</groupId>

<artifactId>mybatis-spring-boot-starter</artifactId>

<version>1.1.1</version>

</dependency>

<!-- mysql 驱动 -->

<dependency>

<groupId>mysql</groupId>

<artifactId>mysql-connector-java</artifactId>

<version>5.1.38</version>

</dependency>

<!-- SpringBoot web组件 -->

<dependency>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-web</artifactId>

</dependency>

</dependencies>

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

*/

@Service

public 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 :

总结

以上是 5分钟快速学会spring boot整合Mybatis的方法 的全部内容, 来源链接: utcz.com/z/328230.html

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