SpringBoot三十八：整合Mybatis-Plus

• Mybatis+Mybatis-Plus
• Spring+Mybatis+Mybatis-Plus

使用SpringBoot将进一步的简化MP的整合：SpringBoot + Mybatis + Mybatis-Plus

pom.xml

	.version>5.1.47</mysql.version>
</properties>


	
		org.springframework.boot</groupId>
		spring-boot-starter</artifactId>
		
			
				org.springframework.boot</groupId>
				spring-boot-starter-logging</artifactId>
			</exclusion>
		</exclusions>
	</dependency>
	
		org.projectlombok</groupId>
		lombok</artifactId>
		true</optional>
	</dependency>
	
		com.baomidou</groupId>
		mybatis-plus-boot-starter</artifactId>
		3.1.1</version>
	</dependency>
	
		mysql</groupId>
		mysql-connector-java</artifactId>
	</dependency>
	
		org.slf4j</groupId>
		slf4j-log4j12</artifactId>
	</dependency>
</dependencies>

log4j.properties

log4j.rootLogger=DEBUG,A1

log4j.appender.A1=org.apache.log4j.ConsoleAppender
log4j.appender.A1.layout=org.apache.log4j.PatternLayout
log4j.appender.A1.layout.ConversionPattern=[%t] [%c]-[%p] %m%n

application.properties

spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8&autoReconnect=true&allowMultiQueries=true&useSSL=false
spring.datasource.username=root
spring.datasource.password=root

pojo

@Data
@NoArgsConstructor
@AllArgsConstructor
@TableName("tb_user")
public class User {

	private Long id;
	private String userName;
	private String password;
	private String name;
	private Integer age;
	private String mail;

}

mapper

public interface UserMapper extends BaseMapper<User> {

}

启动类

@MapperScan("cn.com.javakf.mapper") // 设置mapper接口的扫描包
@SpringBootApplication
public class Application {

	public static void main(String[] args) {
		SpringApplication.run(Application.class, args);
	}

}

测试用例

@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest
public class TestMybatisPlus {

	@Autowired
	private UserMapper userMapper;

	@Test
	public void testSelectList() {
		List<User> users = this.userMapper.selectList(null);
		for (User user : users) {
			System.out.println(user);
		}
	}

}

测试结果

[main] [cn.com.javakf.mapper.UserMapper.selectList]-[DEBUG] ==>  Preparing: SELECT id,user_name,password,name,age,email FROM tb_user 
[main] [cn.com.javakf.mapper.UserMapper.selectList]-[DEBUG] ==> Parameters: 
[main] [cn.com.javakf.mapper.UserMapper.selectList]-[DEBUG] <==      Total: 5
[main] [org.mybatis.spring.SqlSessionUtils]-[DEBUG] Closing non transactional SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@2aa6311a]
User(id=1, userName=zhangsan, password=123456, name=张三, age=18, email=zhangsan@163.com)
User(id=2, userName=lisi, password=123456, name=李四, age=20, email=lisi@163.com)
User(id=3, userName=wangwu, password=123456, name=王五, age=28, email=wangwu@163.com)
User(id=4, userName=zhaoliu, password=123456, name=赵六, age=21, email=zhaoliu@163.com)
User(id=5, userName=sunqi, password=123456, name=孙七, age=24, email=sunqi@163.com)

代码托管：springboot_mybatis_plus