mybatis-plus公共字段自动填充

1.导入依赖

		
        
            com.baomidou
            mybatis-plus-boot-starter
            3.2.0
        

2.自动填充工具类

@Component
public class MyMetaObjectHandler implements MetaObjectHandler {

    @Override
    public void insertFill(MetaObject metaObject) {
        this.setInsertFieldValByName("createUser", ThreadLocalUtils.getUserIdDefaultZero(), metaObject);
        this.setInsertFieldValByName("createTime", LocalDateTime.now(), metaObject);
    }

    @Override
    public void updateFill(MetaObject metaObject) {
        this.setUpdateFieldValByName("updateUser", ThreadLocalUtils.getUserIdDefaultZero(), metaObject);
        this.setUpdateFieldValByName("updateTime", LocalDateTime.now(), metaObject);
    }
}

3.实体类字段添加注解

 	@TableField(value = "create_user", fill = FieldFill.INSERT)
    private Integer createUser;

    @TableField(value = "create_time", fill = FieldFill.INSERT)
    private LocalDateTime createTime;

    @TableField(value = "update_user", fill = FieldFill.UPDATE)
    private Integer updateUser;

    @TableField(value = "update_time", fill = FieldFill.UPDATE)
    private LocalDateTime updateTime;