搭建MyBatis-Plus框架并进行数据库增删改查功能
添加依赖
引入 Spring Boot Maven：
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-boot-starter</artifactId>
<version>3.4.2</version>
</dependency>在 Spring Boot 启动类中添加 @MapperScan 注解，扫描 Mapper 文件夹：
@SpringBootApplication
@MapperScan(“com.yzsite”)
public class Application {
public static void main(String[] args) {
SpringApplication.run(QuickStartApplication.class, args);
}
}
编码
编写实体类 User.java（此处使用了 Lombok (opens new window)简化代码）
@Data
public class User {
private Long id;
private String name;
private Integer age;
private String email;
}
编写Mapper类 UserMapper.java
public interface UserMapper extends BaseMapper<User>{
}
开始使用
添加测试类，进行功能测试：
@RunWith(SpringRunner.class)
@SpringBootTest
public class SampleTest {
@Autowired
private UserMapper userMapper;
@Test
public void testSelect() {
System.out.println((“—– selectAll method test ——“));
List userList = userMapper.selectList(null);
Assert.assertEquals(5, userList.size());
userList.forEach(System.out::println);
}
}
