MyBatis错误：Result Maps collection already contains value for novel.storage.mapper.NovelMapper.BaseResultMap

今天在写项目的时候遇到一个问题如下：

org.apache.ibatis.exceptions.PersistenceException:
### Error building SqlSession.
### The error may exist in NovelMapper.xml
### The error occurred while processing mapper_resultMap[BaseResultMap]
### Cause: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for novel.storage.mapper.NovelMapper.BaseResultMap

原因分析

发现时Mybatis-Generator在生成Mapper.xml文件时，会在原来xml的基础上再追加相同的内容，导致内容重复。报错！

所以找到MyBatis自动生成的文件全部删除，重新进行生成即可。

之后重新生成一次就好！

感谢错误！

MyBatis错误：Result Maps collection already contains value for novel.storage.mapper.NovelMapper.BaseResultMap

原文：http://www.cnblogs.com/printN/p/7020385.html