一、问题引入 

简单来说：代码自动识别的login_id与数据库loginId名不一致

这是一个映射错误问题

 

二、问题解决

@Data
@TableName("t_user_basic")
public class User implements Serializable {

    @TableId(value = "id", type = IdType.AUTO)
    private Integer id;

    private String loginId;

    private String nickName;

    private String pwd;

    private String headImg;

}

 原先代码上加入 @TableField("数据库属性名")

@Data
@TableName("t_user_basic")
public class User implements Serializable {

    @TableId(value = "id", type = IdType.AUTO)
    private Integer id;

    @TableField("loginId")
    private String loginId;

    @TableField("nickName")
    private String nickName;

    private String pwd;

    @TableField("headImg")
    private String headImg;

}