Servlet [SpringMVC] in web application [/TeduStore] 其实是Tomcat 6.0/webapps/项目名/WEB-INF/classes下为空

疑难杂症：

严重: Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.mybatis.spring.SqlSessionFactoryBean#0' defined in file [F:\服务器\apache-tomcat-8.5.20\wtpwebapps\TeduStore\WEB-INF\classes\spring-dao.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [F:\服务器\apache-tomcat-8.5.20\wtpwebapps\TeduStore\WEB-INF\classes\mappers\AddressMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'cn.tedu.store.bean.Address'.  Cause: java.lang.ClassNotFoundException: Cannot find class: cn.tedu.store.bean.Address
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1512)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:296)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:610)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
	at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:651)
	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:602)
	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:665)
	at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:521)
	at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:462)
	at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
	at javax.servlet.GenericServlet.init(GenericServlet.java:158)
	at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1183)
	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1099)
	at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:989)
	at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4931)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5241)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1419)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1409)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [F:\服务器\apache-tomcat-8.5.20\wtpwebapps\TeduStore\WEB-INF\classes\mappers\AddressMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'cn.tedu.store.bean.Address'.  Cause: java.lang.ClassNotFoundException: Cannot find class: cn.tedu.store.bean.Address
	at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:523)
	at org.mybatis.spring.SqlSessionFactoryBean.afterPropertiesSet(SqlSessionFactoryBean.java:380)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1571)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1509)
	... 28 more
Caused by: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'cn.tedu.store.bean.Address'.  Cause: java.lang.ClassNotFoundException: Cannot find class: cn.tedu.store.bean.Address
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:117)
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:89)
	at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:521)
	... 31 more
Caused by: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'cn.tedu.store.bean.Address'.  Cause: java.lang.ClassNotFoundException: Cannot find class: cn.tedu.store.bean.Address
	at org.apache.ibatis.builder.BaseBuilder.resolveClass(BaseBuilder.java:100)
	at org.apache.ibatis.builder.xml.XMLStatementBuilder.parseStatementNode(XMLStatementBuilder.java:63)
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.buildStatementFromContext(XMLMapperBuilder.java:132)
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.buildStatementFromContext(XMLMapperBuilder.java:125)
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:115)
	... 33 more
Caused by: org.apache.ibatis.type.TypeException: Could not resolve type alias 'cn.tedu.store.bean.Address'.  Cause: java.lang.ClassNotFoundException: Cannot find class: cn.tedu.store.bean.Address
	at 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)
	... 37 more
Caused by: java.lang.ClassNotFoundException: Cannot find class: cn.tedu.store.bean.Address
	at 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)
	... 39 more

五月 25, 2018 7:02:39 下午 org.apache.catalina.core.ApplicationContext log
严重: StandardWrapper.Throwable
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.mybatis.spring.SqlSessionFactoryBean#0' defined in file [F:\服务器\apache-tomcat-8.5.20\wtpwebapps\TeduStore\WEB-INF\classes\spring-dao.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [F:\服务器\apache-tomcat-8.5.20\wtpwebapps\TeduStore\WEB-INF\classes\mappers\AddressMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'cn.tedu.store.bean.Address'.  Cause: java.lang.ClassNotFoundException: Cannot find class: cn.tedu.store.bean.Address
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1512)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:296)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:610)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
	at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:651)
	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:602)
	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:665)
	at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:521)
	at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:462)
	at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
	at javax.servlet.GenericServlet.init(GenericServlet.java:158)
	at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1183)
	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1099)
	at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:989)
	at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4931)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5241)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1419)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1409)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.springframework.core.NestedIOException: Failed to parse mapping resource: 'file [F:\服务器\apache-tomcat-8.5.20\wtpwebapps\TeduStore\WEB-INF\classes\mappers\AddressMapper.xml]'; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'cn.tedu.store.bean.Address'.  Cause: java.lang.ClassNotFoundException: Cannot find class: cn.tedu.store.bean.Address
	at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:523)
	at org.mybatis.spring.SqlSessionFactoryBean.afterPropertiesSet(SqlSessionFactoryBean.java:380)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1571)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1509)
	... 28 more
Caused by: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'cn.tedu.store.bean.Address'.  Cause: java.lang.ClassNotFoundException: Cannot find class: cn.tedu.store.bean.Address
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:117)
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:89)
	at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:521)
	... 31 more
Caused by: org.apache.ibatis.builder.BuilderException: Error resolving class. Cause: org.apache.ibatis.type.TypeException: Could not resolve type alias 'cn.tedu.store.bean.Address'.  Cause: java.lang.ClassNotFoundException: Cannot find class: cn.tedu.store.bean.Address
	at org.apache.ibatis.builder.BaseBuilder.resolveClass(BaseBuilder.java:100)
	at org.apache.ibatis.builder.xml.XMLStatementBuilder.parseStatementNode(XMLStatementBuilder.java:63)
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.buildStatementFromContext(XMLMapperBuilder.java:132)
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.buildStatementFromContext(XMLMapperBuilder.java:125)
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:115)
	... 33 more
Caused by: org.apache.ibatis.type.TypeException: Could not resolve type alias 'cn.tedu.store.bean.Address'.  Cause: java.lang.ClassNotFoundException: Cannot find class: cn.tedu.store.bean.Address
	at 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)
	... 37 more
Caused by: java.lang.ClassNotFoundException: Cannot find class: cn.tedu.store.bean.Address
	at 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)
	... 39 more

五月 25, 2018 7:02:39 下午 org.apache.catalina.core.StandardContext loadOnStartup
严重: Servlet [SpringMVC] in web application [/TeduStore] threw load() exception
java.lang.ClassNotFoundException: Cannot find class: cn.tedu.store.bean.Address
	at 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)
	at org.apache.ibatis.builder.BaseBuilder.resolveAlias(BaseBuilder.java:127)
	at org.apache.ibatis.builder.BaseBuilder.resolveClass(BaseBuilder.java:98)
	at org.apache.ibatis.builder.xml.XMLStatementBuilder.parseStatementNode(XMLStatementBuilder.java:63)
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.buildStatementFromContext(XMLMapperBuilder.java:132)
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.buildStatementFromContext(XMLMapperBuilder.java:125)
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.configurationElement(XMLMapperBuilder.java:115)
	at org.apache.ibatis.builder.xml.XMLMapperBuilder.parse(XMLMapperBuilder.java:89)
	at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:521)
	at org.mybatis.spring.SqlSessionFactoryBean.afterPropertiesSet(SqlSessionFactoryBean.java:380)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1571)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1509)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:296)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:293)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:610)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479)
	at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:651)
	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:602)
	at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:665)
	at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:521)
	at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:462)
	at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
	at javax.servlet.GenericServlet.init(GenericServlet.java:158)
	at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1183)
	at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1099)
	at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:989)
	at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4931)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5241)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1419)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1409)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)

上面的报错信息让我很是不解，跟着报错信息，找了一通，完全没解决问题，关键是项目突然就不能运行，这绝对不是代码的问题，但是报错信息还是误导着我，去代码找问题，时间总会告诉我们答案，在我找了近4个小时后，终于解决了。

原因根本就不是代码的错，而是eclipse不编译了，我擦，怎么会这样，去tomcat下的classes发现空空如也，于是查了查eclispse不编译的解决方法：（妈的，真开心）

一般启动时说找不到该类：
Tomcat 6.0/webapps/项目名/WEB-INF/classes下为空，意思是工程的所有JAVA文件都不能生成CLASS文件！
解决方法：
MyEclipse不编译解决1. 确保 project->build automatically    已经被选上.

MyEclipse不编译解决2. 如果选上了,也不好使, 使用这一招: project->clean..->选第2个clean select project, 勾上start build immediatelly

MyEclipse不编译解决3.删除现在的项目,提前设置好编译文件输出路径，重新导入源文件，设置MyEclipse为保存时编译，然后在保存的时候就可以自动编译了

MyEclipse不编译解决4.如果项目里引了某个不用的jar包，而那个包又被你删了，就会出现不报错但怎么也编译不出来class文件的情况，可以把所有包都删除,然后一个一个的再引入(需要的),不要一下子把所有包都引入来,没用的可能会引起不良后果.

MyEclipse不编译解决5. 想删掉某个class文件重新生成，删除class文件后，但classes目录下的文件夹被其它程序打开，比如Total Commander。此时编译也不会通过，在problems下可能会提示“con''t delete classes ……”。关掉其它程序重新编译即可。

MyEclipse不编译解决6.还有种情况是remove掉 JRE System Library，重新导入即可编译。但是什么原因导致的还不清楚。

MyEclipse不编译解决7.把build path中所有包都remove掉。然后又add jars,add libraries把需要的加进去，居然又开始编译了。。。

MyEclipse不编译解决8.project->properties->java build path->source->.../WEB-INF/src的output folder不要默认，编辑让它指向../WEB-INF/classes

然后重新点击build工程即可自动编译。我的问题出在这里，我把这个编译目录给误删了

MyEclipse不编译解决9.再就是最重要的要看工程下面是否缺少了work目录,由于CVS控制时不把work加如版本,所以 checkout后没有这个目录,要手工加上有的工程就能自动编译了

最开始的时候,我只找到了前面7个方法,但是他们都没有解决我的问题.无意中我打开了"Problems"标签,发现里面说缺少work目录,手工加上,然后刷新项目就可以了.

还是试了个jar和path的问题
一定要注意："Problems" 标签,已经为我们提出了问题的所在！所以按照提示去操作吧，一般这类问题就是build path上出问题了，要么多加了jar要么少加了jar。。。。

又能运行了，好开心！！！