Expected one result (or null) to be returned by selectOne(), but found: 2"
时间: 2023-10-23 18:07:16 浏览: 36
错误信息"Expected one result (or null) to be returned by selectOne(), but found: 2"的意思是在使用One()方法时期望返回一个结果(或者null),但实际找到了2个结果。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *3* [Expected one result (or null) to be returned by selectOne(), but found: 3报错解决方案](https://blog.csdn.net/weixin_51821844/article/details/127818387)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
- *2* [mybatis一对多映射 完美解决Expected one result (or null) to be returned by selectOne(), but found:](https://blog.csdn.net/TIANJIAWEN/article/details/124822585)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
[ .reference_list ]