Mybatis-Plus实体类继承Model的使用小结

<dependency>
    <groupId>com.baomidou</groupId>
    <artifactId>mybatis-plus-boot-starter</artifactId>
    <version>最新版本</version>
</dependency>

import com.baomidou.mybatisplus.annotation.TableName;
import com.baomidou.mybatisplus.extension.activerecord.Model;

@TableName("user")
public class User extends Model<User> {
    private static final long serialVersionUID = 1L;

    private Long id;
    private String name;
    private Integer age;
    private String email;

    // getter和setter方法
}

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.test.domain.User;
import org.apache.ibatis.annotations.Mapper;
 
@Mapper
public interface UserMapper  extends BaseMapper<User> {
}

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.test.User;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
 
@SpringBootTest
public class StudentModelTest {
 
    /**
     * 新增方法
     */
    @Test
    void insert(){
        User user = new User();
        user.setAge(45);
        user.setName("Model测试数据1");
        // 直接通过user对象调用
        user.insert();
    }
 
    /**
     * 查询所有
     */
    @Test
    void selectList(){
        // queryWrapper 条件为空查询所有数据
        new User().selectList(null).forEach(System.out::println);
    }
}