问题描述

今天遇到的这个问题到最后真的是怕我自己给气哭了，唉，大致如下：
这是controller层代码，前端传的值都有，但是去调用updateWechatBulkNotification时，修改失败，也不报错，通过查看控制台日志发现，返回受影响的行数为0

 @PostMapping("/updateRemarks")public AjaxResult updateRemarks(@RequestBody String data) {JSONObject jsonObject = JSONObject.parseObject(data);String appkey = jsonObject.getString("appkey");List<WechatBulkNotification> list = jsonObject.getJSONArray("list").toList(WechatBulkNotification.class);LoginUser loginUser = SecurityUtils.getLoginUser();list.forEach(wechatBulkNotification -> {if(wechatBulkNotification.getwbnId()!=null){wechatBulkNotification.setId(wechatBulkNotification.getwbnId());wechatBulkNotification.setAppKey(appkey);wechatBulkNotification.setUpdateBy(loginUser.getUserId().toString());wechatBulkNotificationService.updateWechatBulkNotification(wechatBulkNotification);}});return AjaxResult.success();}

接着再来看下xml里面的代码
看着也没有问题，经过百般研究，最后问题出在了id，id不对导致的，我传的id在wechat_xxxx表里面查询不到，唉

<update id="updateWechatBulkNotification" parameterType="BulkNotif">update tification<trim prefix="SET" suffixOverrides=","><if test="createBy != null">create_by = #{createBy},</if><if test="createTime != null">create_time = #{createTime},</if><if test="updateBy != null">update_by = #{updateBy},</if><if test="updateTime != null">update_time = #{updateTime},</if><if test="nick != null">nick = #{nick},</if><if test="wxid != null">id = #{wxid},</if><if test="type != null">type = #{type},</if><if test="intervalTime != null">interval_time = #{intervalTime},</if><if test="appkey != null">key = #{appkey},</if><if test="salespersonName != null">salesperson_name = #{salespersonName},</if><if test="threeSegmentCode != null">three_segment_code = #{threeSegmentCode},</if><if test="remark != null">remark = #{remark},</if></trim>where id = #{id}</update>