Caused by: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'userResultMap'. Cause: java.lang.ClassNotFoundException: Cannot find class: userResultMap at org.apache.ibatis.builder.baseBuilder.resolveClass(baseBuilder.java:118) at org.apache.ibatis.builder.xml.XMLMapperBuilder.resultMapElement(XMLMapperBuilder.java:265) 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) ... 104 more Caused by: org.apache.ibatis.type.TypeException: Could not resolve type alias 'userResultMap'. Cause: java.lang.ClassNotFoundException: Cannot find class: userResultMap at org.apache.ibatis.type.TypeAliasRegistry.resolveAlias(TypeAliasRegistry.java:120) at org.apache.ibatis.builder.baseBuilder.resolveAlias(baseBuilder.java:149) at org.apache.ibatis.builder.baseBuilder.resolveClass(baseBuilder.java:116) ... 108 more
最近在做SSM整合的时候，遇到这样一个ClassNotFoundException的bug，意思是无法找到返回值对应的result类型，最后发现是我把type和id写反了。
另外，如果返回的值是一个基本的数据类型使用的是resultType 如果是和resultMap
匹配的，比如说是集合，map等则使用resultMap。面向百度debug的时候看到了这种情况也会报类似的错。
