Expected one result (or null) to be returned by selectOne(), but found: 2
原因： 1）查询一条数据，但返回数据有多条 ps：数据库中有相同的数据，不一定完全相同，可能是要查询的字段相同 2）想要查询多条数据，但是被前台限制 今天搭建ssm框架实现登录注册时，遇见的一个小问题
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- 1. Expected one result (or null) to be returned by selectOne(), but found: 2
- 2. MyBatis报错：Expected one result (or null) to be returned by selectOne(), but found: 2
- 3. TooManyResultsException: Expected one result (or null) to be returned by selectOne(), but found: 2]
- 4. 解决 Expected one result (or null) to be returned by selectOne(), but found: 2
- 5. 解决:TooManyResultsException: Expected one result (or null) to be returned by selectOne(), but found:
- 6. BUG之Expected one result (or null) to be returned by selectOne(), but found: 4
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- 10. 关于Expected one result (or null) to be returned by selectOne(), but found: 3。。。。异常