mybatisPlus 联合主键批量修改

原创已于 2023-07-14 15:53:38 修改 · 3.9k 阅读

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于 2022-03-26 13:07:31 首次发布

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mybatisPlus 联合主键批量修改

maven依赖

<dependency>
            <groupId>com.github.jeffreyning</groupId>
            <artifactId>mybatisplus-plus</artifactId>
            <version>1.5.1-RELEASE</version>
        </dependency>

        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
        </dependency>

启动类

@SpringBootApplication
@EnableMPP
public class SystemApplication {
    public static void main(String[] args) {
        SpringApplication.run(SystemApplication.class, args);
    }
}

实体类

    @MppMultiId
    @TableField(value = "message_id")
    @ApiModelProperty(value = "消息id")
    private Long messageId;

    @MppMultiId
    @TableField(value = "user_id")
    @ApiModelProperty(value = "用户id")
    private Long userId;

mapper、service、mapper.xml

public interface SysMessageUserMapper extends MppBaseMapper<SysMessageUser>{
}

public interface SysMessageUserService extends IMppService<SysMessageUser> {
}

@Service
public class SysMessageUserServiceImpl extends MppServiceImpl<SysMessageUserMapper, SysMessageUser> implements SysMessageUserService {
}

//批量修改方法
sysMessageUserService.updateBatchByMultiId(updateList);