逆向工程出现异常：Result Maps collection already contains value for ...BaseResultMap

最新推荐文章于 2024-07-26 13:46:32 发布

Wthree5

最新推荐文章于 2024-07-26 13:46:32 发布

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文章标签： java

本文链接：https://blog.youkuaiyun.com/Wthree5/article/details/131563844

在初始化SpringBoot应用时遇到BeanCreationException，具体原因是尝试创建SqlSessionFactory时失败，进一步追踪发现是由于在BidInfoMapper.xml文件中的BaseResultMap定义重复导致的。解决方案是检查并删除XML文件中多余的BaseResultMap代码。

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Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [org/mybatis/spring/boot/autoconfigure/MybatisAutoConfiguration.class]: Bean instantiation via factory method failed;  nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session. SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception;  nested exception is org.springframework.core.
NestedIOException: Failed to parse mapping resource: 'file [D:\workspace\Yinglibao\work\micr-dataservice\target\classes\mappers\BidInfoMapper.xml]';  
nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML.  The XML location is 'file [D:\workspace\Yinglibao\work\micr-dataservice\target\classes\mappers\BidInfoMapper.xml]'.  
Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.bjpowernode.dataservice.mapper.BidInfoMapper.BaseResultMap

关键在于

Cause: java.lang.IllegalArgumentException: Result Maps collection already contains value for com.bjpowernode.dataservice.mapper.BidInfoMapper.BaseResultMap

原因：

是BaseResultMap出了问题，原因是 BaseResultMap这个结果出现了多次。

解决：

在相应文件中删除重复出现的BaseResultMap代码。