java.lang.NoClassDefFoundError: org/springframework/orm/hibernate3/support/HibernateDaoSupport

一、問題

Hibernate查詢數據庫編譯通過，但運行時報錯

  嚴重: ContainerBase.addChild: start:
org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/web01]]
   at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:162)
   at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:1015)
   at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:991)
   at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
   at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1899)
   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.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301)
   at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
   at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
   at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:618)
   at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:565)
   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.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:301)
   at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
   at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
   at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)
   at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76)
   at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309)
   at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1401)
   at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
   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 sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357)
   at sun.rmi.transport.Transport$1.run(Transport.java:200)
   at sun.rmi.transport.Transport$1.run(Transport.java:197)
   at java.security.AccessController.doPrivileged(Native Method)
   at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
   at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)
   at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)
   at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683)
   at java.security.AccessController.doPrivileged(Native Method)
   at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)
   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
   at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
   at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NoClassDefFoundError: org/springframework/orm/hibernate3/support/HibernateDaoSupport
   at java.lang.ClassLoader.defineClass1(Native Method)
   at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
   at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
   at org.apache.catalina.loader.WebappClassLoaderBase.findClassInternal(WebappClassLoaderBase.java:3205)
   at org.apache.catalina.loader.WebappClassLoaderBase.findClass(WebappClassLoaderBase.java:1373)
   at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1861)
   at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1735)
   at java.lang.Class.getDeclaredFields0(Native Method)
   at java.lang.Class.privateGetDeclaredFields(Class.java:2583)
   at java.lang.Class.getDeclaredFields(Class.java:1916)
   at org.apache.catalina.util.Introspection.getDeclaredFields(Introspection.java:106)
   at org.apache.catalina.startup.WebAnnotationSet.loadFieldsAnnotation(WebAnnotationSet.java:270)
   at org.apache.catalina.startup.WebAnnotationSet.loadApplicationServletAnnotations(WebAnnotationSet.java:139)
   at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:65)
   at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:417)
   at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:891)
   at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:388)
   at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
   at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
   at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5519)
   at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
   ... 42 more
Caused by: java.lang.ClassNotFoundException: org.springframework.orm.hibernate3.support.HibernateDaoSupport
   at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1892)
   at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1735)
   ... 63 more

二、原因

pom文件中使用了 Hibernate的不同版本的依賴，版本衝突

<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-core</artifactId>
    <version>5.4.4.Final</version>
</dependency>
<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-entitymanager</artifactId>
    <version>5.4.4.Final</version>
</dependency>
-----------------------------------------------------------
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-hibernate3</artifactId>
    <version>2.0.1</version>
</dependency>

上面org.hibernate 5.4.4.Final版本的依賴與下面org.springframework 2.0.1版本的依賴所起的功能是一致的，但如果同時加上的話就會產生衝突。要將其中的一個去掉。這裏去掉5.4.4版本的。

去掉之後又產生了另一個問題：

部分引用找不到了

原因：

之前用的依賴是5.4.4.Final版本的部分，

<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-core</artifactId>
    <version>5.4.4.Final</version>
</dependency>
<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-entitymanager</artifactId>
    <version>5.4.4.Final</version>
</dependency>

之後代碼裏要用到 HibernateDaoSupport 引入了org.springframework 2.0.1版本的依賴。然後產生了版本衝突，去掉5.4.4.Final 之後，2.0.1版本的依賴Query包路徑與原來5.4.4.Final的依賴Query包路徑不一致，於是導致這個import找不到了

這裏可以看它們之間的不同

三、解決方法

1. 上面兩種依賴選擇其中的一個版本，選org.springframework 2.0.1版本的依賴。

2. 之後將maven包clean一下，清除掉原來的包，去掉上面的import xxx，然後引入新的import路徑。

四、其他可能的原因

所依賴的包都在maven下載了，編譯也能夠通過，但是運行的時候報錯

Caused by: java.lang.ClassNotFoundException: org.springframework.orm.hibernate3.support.HibernateDaoSupport

這樣的情況就說明不是缺少依賴包的問題，而是在運行的時候找不到包。那就是沒有把maven下載的包部署好。

打開 Project Structure --> Artifacts-->Output Layout，查看Output Layout 中WEB-INF下有沒有 lib文件夾。如果沒有lib文件夾或者lib文件夾下沒有jar包，都是沒有部署好。如果右邊Available Elements窗口還顯示有jar包，說明這些jar包未添加，則應右擊選擇Put into Output Root。