resultMap和resultType引起的錯(cuò)誤

2019-11-10 19:08:15

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十二月 08, 2014 1:47:35 下午 org.apache.catalina.core.StandardContext listenerStartSEVERE: Exception sending context initialized event to listener instance of class org.ssessionFactory(org.apache.ibatis.session.SqlSessionFactory); nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [beans.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [D:/wangkai/apache-tomcat-6.0.37/webapps/jk/WEB-INF/classes/cn/itcast/jk/sqlMapper/ContractMapper.xml]'; nested exception is java.lang.RuntimeException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'contractRM'. Cause: java.lang.ClassNotFoundException: Cannot find class: contractRMat org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:288)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1122)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:522)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:626)at org.springframework.context.support.AbstractapplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389)at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112)at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4206)at org.apache.catalina.core.StandardContext.start(StandardContext.java:4705)at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799)at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779)at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601)at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1079)at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1002)at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:506)at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1317)at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324)at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1065)at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)at org.apache.catalina.core.StandardService.start(StandardService.java:525)at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)at org.apache.catalina.startup.Catalina.start(Catalina.java:595)at sun.reflect.NativeMethod accessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)at java.lang.reflect.Method.invoke(Method.java:601)at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire method: public void cn.itcast.jk.dao.impl.BaseDaoImpl.setSqlSessionFactory(org.apache.ibatis.session.SqlSessionFactory); nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [beans.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [D:/wangkai/apache-tomcat-6.0.37/webapps/jk/WEB-INF/classes/cn/itcast/jk/sqlMapper/ContractMapper.xml]'; nested exception is java.lang.RuntimeException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'contractRM'. Cause: java.lang.ClassNotFoundException: Cannot find class: contractRMat org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:601)at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:285)... 37 moreCaused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [beans.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [D:/wangkai/apache-tomcat-6.0.37/webapps/jk/WEB-INF/classes/cn/itcast/jk/sqlMapper/ContractMapper.xml]'; nested exception is java.lang.RuntimeException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'contractRM'. Cause: java.lang.ClassNotFoundException: Cannot find class: contractRMat org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1488)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:524)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292)at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:910)at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:853)at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:768)at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:558)... 39 moreCaused by: org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [D:/wangkai/apache-tomcat-6.0.37/webapps/jk/WEB-INF/classes/cn/itcast/jk/sqlMapper/ContractMapper.xml]'; nested exception is java.lang.RuntimeException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'contractRM'. Cause: java.lang.ClassNotFoundException: Cannot find class: contractRMat org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:462)at org.mybatis.spring.SqlSessionFactoryBean.afterPropertiesSet(SqlSessionFactoryBean.java:336)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1547)at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1485)... 49 moreCaused by: java.lang.RuntimeException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'contractRM'. Cause: java.lang.ClassNotFoundException: Cannot find class: contractRMat org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:113)at org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:88)at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:460)... 52 moreCaused by: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'contractRM'. Cause: java.lang.ClassNotFoundException: Cannot find class: contractRMat org.apache.ibatis.builder.BaseBuilder.resolveClass(BaseBuilder.java:100)at org.apache.ibatis.builder.xml.XMLStatementBuilder.parseStatementNode(XMLStatementBuilder.java:69)at org.apache.ibatis.builder.xml.XMLMapperBuilder.buildStatementFromContext(XMLMapperBuilder.java:128)at org.apache.ibatis.builder.xml.XMLMapperBuilder.buildStatementFromContext(XMLMapperBuilder.java:121)at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:111)... 54 moreCaused by: org.apache.ibatis.type.TypeException: Could not resolve type alias 'contractRM'. Cause: java.lang.ClassNotFoundException: Cannot find class: contractRMat org.apache.ibatis.type.TypeAliasRegistry.resolveAlias(TypeAliasRegistry.java:114)at org.apache.ibatis.builder.BaseBuilder.resolveAlias(BaseBuilder.java:127)at org.apache.ibatis.builder.BaseBuilder.resolveClass(BaseBuilder.java:98)... 58 moreCaused by: java.lang.ClassNotFoundException: Cannot find class: contractRMat org.apache.ibatis.io.ClassLoaderWrapper.classForName(ClassLoaderWrapper.java:188)at org.apache.ibatis.io.ClassLoaderWrapper.classForName(ClassLoaderWrapper.java:87)at org.apache.ibatis.io.Resources.classForName(Resources.java:254)at org.apache.ibatis.type.TypeAliasRegistry.resolveAlias(TypeAliasRegistry.java:110)... 60 more

MyBatis中在查詢進(jìn)行select映射的時(shí)候，返回類型可以用resultType，也可以用resultMap，resultType是直接表示返回類型的，而resultMap則是對(duì)外部ResultMap的引用，但是resultType跟resultMap不能同時(shí)存在。

也就是出現(xiàn)錯(cuò)誤的原因是resultType引用了ResultMap的結(jié)果導(dǎo)致。。。

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