Error: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. : Could not resolve type alias ‘XXX’.

Error Message:
org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is ‘com/huangmy3/community/dao/DiscussPostDao.xml’. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias ‘DiscussPost’. Cause: java.lang.ClassNotFoundException: Cannot find class: DiscussPost

Error reported means.
Binding exception, the type (DiscussPostMap entity class) could not be found
The reason is: The return type of the entity class should be resultMap

修改后：

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