@Data
@AllArgsConstructor
@NoArgsConstructor
@TableName("wb_member")
public class WbMember implements Serializable {

	private static final long serialVersionUID=1L;

	/**
	 * 用戶ID
	 */
	@ApiModelProperty(value = "用戶ID", position = 0)
	@TableId(value = "id", type = IdType.ASSIGN_ID)
	@JsonFormat(shape = JsonFormat.Shape.STRING)
	private Long id;

	/**
	 * 昵稱
	 */
	@ApiModelProperty(value = "昵稱", position = 1)
	private String nickName;

	/**
	 * 手機號碼
	 */
	@ApiModelProperty(value = "手機號碼", position = 2)
	private String phone;

	/**
	 * 密碼
	 */
	@ApiModelProperty(value = "密碼", position = 3)
	private String password;

測試接口

/**
     * 測試接口
     * @return
     */
    @ApiOperation("測試")
    @PostMapping("/list/testMember")
    public AjaxResult testMember(){
        long id = 1339284736172032l;
        return AjaxResult.success(iWbMemberService.queryTest(id));
    }

mapper繼承BaseMapper接口

public interface WbMemberMapper extends BaseMapper<WbMember> {

    
    @Select({
            "select",
            "* ",
            "from wb_member",
            "where id = #{id,jdbcType=INTEGER}"
    })
    @Results({
            @Result(column="id", property="id", jdbcType=JdbcType.INTEGER, id=true),
            @Result(column="nick_name", property="nickName", jdbcType=JdbcType.VARCHAR),
            @Result(column="phone", property="phone", jdbcType=JdbcType.VARCHAR),
            @Result(column="sex", property="sex", jdbcType=JdbcType.INTEGER),
            @Result(column="birthday", property="birthday", jdbcType=JdbcType.VARCHAR)
    })
    List<WbMember> queryTest(long id);
}

不需要寫xml文件，sql寫在mapper接口注解中，可以使用mybatis-plus生成器數(shù)據(jù)庫

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查詢結(jié)果為：

在這里插入圖片描述

重點部分

單表查詢結(jié)果正常，參數(shù)傳遞正常，我們可以嘗試通過多表關(guān)聯(lián)傳遞參數(shù)去查詢。

修改為多表查詢此處應(yīng)封裝一個對象可能維護方便一些，測試寫了map

@Select({
            "select",
            "u.user_id,u.user_name,u.nick_name ",
            "from sys_user u,sys_user_role r,sys_role o",
            "where u.user_id = r.user_id AND r.role_id = o.role_id",
            "AND u.user_id = #{id,jdbcType=INTEGER}"
    })
    @Results({
            @Result(column="user_id", property="userId", jdbcType=JdbcType.INTEGER, id=true),
            @Result(column="user_name", property="userName", jdbcType=JdbcType.VARCHAR),
            @Result(column="nick_name", property="nickName", jdbcType=JdbcType.VARCHAR),
    })
    List<Map> queryTest(long id);

在這里插入圖片描述