D:\jdk\bin\java.exe -ea -Didea.test.cyclic.buffer.size=1048576 "-javaagent:D:\idea\IntelliJ IDEA 2020.2.3\lib\idea_rt.jar=1923:D:\idea\IntelliJ IDEA 2020.2.3\bin" -Dfile.encoding=UTF-8 -classpath "D:\idea\IntelliJ IDEA 2020.2.3\lib\idea_rt.jar;D:\idea\IntelliJ IDEA 2020.2.3\plugins\junit\lib\junit5-rt.jar;D:\idea\IntelliJ IDEA 2020.2.3\plugins\junit\lib\junit-rt.jar;D:\jdk\jre\lib\charsets.jar;D:\jdk\jre\lib\deploy.jar;D:\jdk\jre\lib\ext\access-bridge-64.jar;D:\jdk\jre\lib\ext\cldrdata.jar;D:\jdk\jre\lib\ext\dnsns.jar;D:\jdk\jre\lib\ext\jaccess.jar;D:\jdk\jre\lib\ext\jfxrt.jar;D:\jdk\jre\lib\ext\localedata.jar;D:\jdk\jre\lib\ext\nashorn.jar;D:\jdk\jre\lib\ext\sunec.jar;D:\jdk\jre\lib\ext\sunjce_provider.jar;D:\jdk\jre\lib\ext\sunmscapi.jar;D:\jdk\jre\lib\ext\sunpkcs11.jar;D:\jdk\jre\lib\ext\zipfs.jar;D:\jdk\jre\lib\javaws.jar;D:\jdk\jre\lib\jce.jar;D:\jdk\jre\lib\jfr.jar;D:\jdk\jre\lib\jfxswt.jar;D:\jdk\jre\lib\jsse.jar;D:\jdk\jre\lib\management-agent.jar;D:\jdk\jre\lib\plugin.jar;D:\jdk\jre\lib\resources.jar;D:\jdk\jre\lib\rt.jar;E:\javaStudy\code\spring\mybatis_multi\target\test-classes;E:\javaStudy\code\spring\mybatis_multi\target\classes;D:\idea\IntelliJ IDEA 2020.2.3\plugins\maven\lib\maven3\mysql\mysql-connector-java\8.0.22\mysql-connector-java-8.0.22.jar;D:\idea\IntelliJ IDEA 2020.2.3\plugins\maven\lib\maven3\com\google\protobuf\protobuf-java\3.11.4\protobuf-java-3.11.4.jar;D:\idea\IntelliJ IDEA 2020.2.3\plugins\maven\lib\maven3\org\mybatis\mybatis\3.5.4\mybatis-3.5.4.jar;D:\idea\IntelliJ IDEA 2020.2.3\plugins\maven\lib\maven3\junit\junit\4.12\junit-4.12.jar;D:\idea\IntelliJ IDEA 2020.2.3\plugins\maven\lib\maven3\org\hamcrest\hamcrest-core\1.3\hamcrest-core-1.3.jar;D:\idea\IntelliJ IDEA 2020.2.3\plugins\maven\lib\maven3\log4j\log4j\1.2.17\log4j-1.2.17.jar" com.intellij.rt.junit.JUnitStarter -ideVersion5 -junit4 com.test.MapperTest,test3 16:54:05,257 DEBUG LogFactory:105 - Logging initialized using 'class org.apache.ibatis.logging.log4j.Log4jImpl' adapter. 16:54:05,285 DEBUG PooledDataSource:353 - PooledDataSource forcefully closed/removed all connections. 16:54:05,285 DEBUG PooledDataSource:353 - PooledDataSource forcefully closed/removed all connections. 16:54:05,285 DEBUG PooledDataSource:353 - PooledDataSource forcefully closed/removed all connections. 16:54:05,285 DEBUG PooledDataSource:353 - PooledDataSource forcefully closed/removed all connections. org.apache.ibatis.exceptions.PersistenceException: ### Error building SqlSession. ### The error may exist in com/mapper/UserMapper.xml ### The error occurred while processing mapper_resultMap[userMap]_collection[orderList] ### Cause: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'com/mapper/UserMapper.xml'. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'userMap'. Cause: java.lang.ClassNotFoundException: Cannot find class: userMap at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30) at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:80) at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:64) at com.test.MapperTest.test3(MapperTest.java:23) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.junit.runner.JUnitCore.run(JUnitCore.java:137) at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69) at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33) at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:220) at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:53) Caused by: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'com/mapper/UserMapper.xml'. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'userMap'. Cause: java.lang.ClassNotFoundException: Cannot find class: userMap at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:121) at org.apache.ibatis.builder.xml.XMLConfigBuilder.parse(XMLConfigBuilder.java:98) at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:78) ... 24 more Caused by: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. The XML location is 'com/mapper/UserMapper.xml'. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'userMap'. Cause: java.lang.ClassNotFoundException: Cannot find class: userMap at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:122) at org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:94) at org.apache.ibatis.builder.xml.XMLConfigBuilder.mapperElement(XMLConfigBuilder.java:374) at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:119) ... 26 more Caused by: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'userMap'. Cause: java.lang.ClassNotFoundException: Cannot find class: userMap at org.apache.ibatis.builder.BaseBuilder.resolveClass(BaseBuilder.java:118) at org.apache.ibatis.builder.xml.XMLStatementBuilder.parseStatementNode(XMLStatementBuilder.java:102) at org.apache.ibatis.builder.xml.XMLMapperBuilder.buildStatementFromContext(XMLMapperBuilder.java:137) at org.apache.ibatis.builder.xml.XMLMapperBuilder.buildStatementFromContext(XMLMapperBuilder.java:130) at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:120) ... 29 more Caused by: org.apache.ibatis.type.TypeException: Could not resolve type alias 'userMap'. Cause: java.lang.ClassNotFoundException: Cannot find class: userMap 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) ... 33 more Caused by: java.lang.ClassNotFoundException: Cannot find class: userMap at org.apache.ibatis.io.ClassLoaderWrapper.classForName(ClassLoaderWrapper.java:200) at org.apache.ibatis.io.ClassLoaderWrapper.classForName(ClassLoaderWrapper.java:89) at org.apache.ibatis.io.Resources.classForName(Resources.java:261) at org.apache.ibatis.type.TypeAliasRegistry.resolveAlias(TypeAliasRegistry.java:116) ... 35 more Process finished with exit code -1
错误原因：userMapper.xml配置文件中的在进行多表查询时对应的返回集resultMap写成了resultType
