Could not set parameters for mapping 和Expected one result (or null) to be returned by selectOne(), b
今天在练习mybatins的时候，突然思考一个问题。 StudentDao接口中的方法 测试方法 测试方法中字符串里面又加了一个单引号的字符串是我在尝试，这个加不加报错的信息都是一样的 mapper中 报错信息 由前面的运行过程可以看出来，前面都没问题，就是到19行，不能映射到mapper 然后把String name 换成了Integer id 这个id是我这张表的主键。就能成功运行了 此时我又
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相关文章
- 1. Expected one result (or null) to be returned by...
- 2. TooManyResultsException: Expected one result (or null) to be returned by selectOne(), but found: 2]
- 3. 解决:TooManyResultsException: Expected one result (or null) to be returned by selectOne(), but found:
- 4. Expected one result (or null) to be returned by selectOne(), but found: 2
- 5. BUG之Expected one result (or null) to be returned by selectOne(), but found: 4
- 6. MyBatis报错：Expected one result (or null) to be returned by selectOne(), but found: 2
- 7. Expected one result (or null) to be returned by selectOne(), but found: 20
- 8. 解决 Expected one result (or null) to be returned by selectOne(), but found: 2
- 9. org.apache.ibatis.exceptions.TooManyResultsException: Expected one result (or null) to be returned
- 10. 关于Expected one result (or null) to be returned by selectOne(), but found: 3。。。。异常