22 Feb 2017
1 分钟阅读
Mybatis报错“Result Maps Collection Already Contains Value for ***”mybatis报错“Result Maps collection already contains value for ***”
这是工作中遇到的一个问题：测试环境部署出错，报了下面的问题。
Caused by: java.lang.IllegalArgumentException: Result Maps collection already contains value for xxx.xxx.xxxRepository.BaseResultMap
at org.apache.ibatis.session.Configuration$StrictMap.put(Configuration.java:802)
at org.apache.ibatis.session.Configuration$StrictMap.put(Configuration.java:774)
at org.apache.ibatis.session.Configuration.addResultMap(Configuration.java:556)
at org.apache.ibatis.builder.MapperBuilderAssistant.addResultMap(MapperBuilderAssistant.java:217)
at org.apache.ibatis.builder.ResultMapResolver.resolve(ResultMapResolver.java:47)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:285)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:252)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElements(XMLMapperBuilder.java:244)
at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:116)
检查了对应的mapper文件和java文件，已经8个多月没有修改过了。也检查了内容，没有发现重复的BaseResultMap；select中也resultMap的引用也都正确。
