此 demo 演示了 Spring Boot 如何与原生的 mybatis 整合，使用了 mybatis 官方提供的脚手架
mybatis-spring-boot-starter可以很容易的和 Spring Boot 整合。
<?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>
<artifactId>spring-boot-demo-orm-mybatis</artifactId>
<version>1.0.0-SNAPSHOT</version>
<packaging>jar</packaging>
<name>spring-boot-demo-orm-mybatis</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>com.xkcoding</groupId>
<artifactId>spring-boot-demo</artifactId>
<version>1.0.0-SNAPSHOT</version>
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<mybatis.version>1.3.2</mybatis.version>
</properties>
<dependencies>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>${mybatis.version}</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>cn.hutool</groupId>
<artifactId>hutool-all</artifactId>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<finalName>spring-boot-demo-orm-mybatis</finalName>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>/**
* <p>
* 启动类
* </p>
*
* @author yangkai.shen
* @date Created in 2018-11-08 10:52
*/
@MapperScan(basePackages = {"com.xkcoding.orm.mybatis.mapper"})
@SpringBootApplication
public class SpringBootDemoOrmMybatisApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootDemoOrmMybatisApplication.class, args);
}
}spring:
datasource:
url: jdbc:mysql://127.0.0.1:3306/spring-boot-demo?useUnicode=true&characterEncoding=UTF-8&useSSL=false&autoReconnect=true&failOverReadOnly=false&serverTimezone=GMT%2B8
username: root
password: root
driver-class-name: com.mysql.cj.jdbc.Driver
type: com.zaxxer.hikari.HikariDataSource
initialization-mode: always
continue-on-error: true
schema:
- "classpath:db/schema.sql"
data:
- "classpath:db/data.sql"
hikari:
minimum-idle: 5
connection-test-query: SELECT 1 FROM DUAL
maximum-pool-size: 20
auto-commit: true
idle-timeout: 30000
pool-name: SpringBootDemoHikariCP
max-lifetime: 60000
connection-timeout: 30000
logging:
level:
com.xkcoding: debug
com.xkcoding.orm.mybatis.mapper: trace
mybatis:
configuration:
# 下划线转驼峰
map-underscore-to-camel-case: true
mapper-locations: classpath:mappers/*.xml
type-aliases-package: com.xkcoding.orm.mybatis.entity/**
* <p>
* User Mapper
* </p>
*
* @author yangkai.shen
* @date Created in 2018-11-08 10:54
*/
@Mapper
@Component
public interface UserMapper {
/**
* 查询所有用户
*
* @return 用户列表
*/
@Select("SELECT * FROM orm_user")
List<User> selectAllUser();
/**
* 根据id查询用户
*
* @param id 主键id
* @return 当前id的用户，不存在则是 {@code null}
*/
@Select("SELECT * FROM orm_user WHERE id = #{id}")
User selectUserById(@Param("id") Long id);
/**
* 保存用户
*
* @param user 用户
* @return 成功 - {@code 1} 失败 - {@code 0}
*/
int saveUser(@Param("user") User user);
/**
* 删除用户
*
* @param id 主键id
* @return 成功 - {@code 1} 失败 - {@code 0}
*/
int deleteById(@Param("id") Long id);
}<?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.xkcoding.orm.mybatis.mapper.UserMapper">
<insert id="saveUser">
INSERT INTO `orm_user` (`name`,
`password`,
`salt`,
`email`,
`phone_number`,
`status`,
`create_time`,
`last_login_time`,
`last_update_time`)
VALUES (#{user.name},
#{user.password},
#{user.salt},
#{user.email},
#{user.phoneNumber},
#{user.status},
#{user.createTime},
#{user.lastLoginTime},
#{user.lastUpdateTime})
</insert>
<delete id="deleteById">
DELETE
FROM `orm_user`
WHERE `id` = #{id}
</delete>
</mapper>/**
* <p>
* UserMapper 测试类
* </p>
*
* @author yangkai.shen
* @date Created in 2018-11-08 11:25
*/
@Slf4j
public class UserMapperTest extends SpringBootDemoOrmMybatisApplicationTests {
@Autowired
private UserMapper userMapper;
@Test
public void selectAllUser() {
List<User> userList = userMapper.selectAllUser();
Assert.assertTrue(CollUtil.isNotEmpty(userList));
log.debug("【userList】= {}", userList);
}
@Test
public void selectUserById() {
User user = userMapper.selectUserById(1L);
Assert.assertNotNull(user);
log.debug("【user】= {}", user);
}
@Test
public void saveUser() {
String salt = IdUtil.fastSimpleUUID();
User user = User.builder().name("testSave3").password(SecureUtil.md5("123456" + salt)).salt(salt).email("[email protected]").phoneNumber("17300000003").status(1).lastLoginTime(new DateTime()).createTime(new DateTime()).lastUpdateTime(new DateTime()).build();
int i = userMapper.saveUser(user);
Assert.assertEquals(1, i);
}
@Test
public void deleteById() {
int i = userMapper.deleteById(1L);
Assert.assertEquals(1, i);
}
}