Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
在@column的字段名含名表别名的时候,会出现检索不到值的问题。
经过调查原因是SQL的返回字段名和ResultMap中的字段名不匹配造成的。
SQL的返回字段名只含有字段名(不含名表别名),ResultMap中的字段名是和@column的name属性一致的(含名表别名)。
出现问题的代码如下:
我的代码是通过在表名中加入Left Join以实现简单的多表关联查询。但是就算没有多表查询,@column中指定表别名的时候依旧会有问题的。