mybatis-plus快速使用
作者:互联网
Mybatis-plus整合到springboot
1.1 引入依赖
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>3.4.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.alibaba/druid -->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.2.6</version>
</dependency>
<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.23</version>
</dependency>
1.2 编写实体类和mapper接口并且接口继承BaseMapper<实体类>
package com.zhao.mybatisplus.pojo;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;
@Data
@AllArgsConstructor
@NoArgsConstructor
@ToString
public class user {
private int id;
private String name;
private String email;
}
package com.zhao.mybatisplus.mapper;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.zhao.mybatisplus.pojo.user;
import org.springframework.stereotype.Component;
@Component
public interface userMapper extends BaseMapper<user> {
}
1.3 扫描mapper路径
@SpringBootApplication
@MapperScan("com/zhao/mybatisplus/mapper")
public class MybatisplusApplication {
public static void main(String[] args) {
SpringApplication.run(MybatisplusApplication.class, args);
}
}
1.4 注入测试
package com.zhao.mybatisplus;
import com.zhao.mybatisplus.mapper.userMapper;
import com.zhao.mybatisplus.pojo.user;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
@SpringBootTest
class MybatisplusApplicationTests {
@Autowired
com.zhao.mybatisplus.mapper.userMapper usermapper;
@Test
void contextLoads() {
user user = usermapper.selectById(1);
System.out.println(user);
}
}
标签:mapper,mybatisplus,com,zhao,plus,user,mybatis,import,快速 来源: https://blog.csdn.net/tianqi11/article/details/116308111