開始過濾器的異常 - Servlet

我已經正確定義了xml文件中的過濾器類，但是每次啓動servlet時，都會因爲無法啓動過濾器而引發錯誤。當我在日誌中看到，它指出java.lang.NoClassDefFoundError開始過濾器的異常 - Servlet

我的XML代碼：

<?xml version="1.0" encoding="UTF-8"?> 
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> 


<servlet> 
    <servlet-name>userLogin</servlet-name> 
    <servlet-class>UserAction</servlet-class> 
</servlet> 

<servlet-mapping> 
    <servlet-name>userLogin</servlet-name> 
    <url-pattern>/userLogin</url-pattern> 
</servlet-mapping> 


<servlet> 
    <servlet-name>userRegistration</servlet-name> 
    <servlet-class>UserAction</servlet-class> 
</servlet> 

<servlet-mapping> 
    <servlet-name>userRegistration</servlet-name> 
    <url-pattern>/userRegistration</url-pattern> 
</servlet-mapping> 


<servlet> 
    <servlet-name>createUser</servlet-name> 
    <servlet-class>UserAction</servlet-class> 
</servlet> 

<servlet-mapping> 
    <servlet-name>createUser</servlet-name> 
    <url-pattern>/createUser</url-pattern> 
</servlet-mapping> 

<filter> 
    <filter-name>loginFilter</filter-name> 
    <filter-class>com.drona.action.LoginFilter</filter-class> 
</filter> 

<filter-mapping> 
    <filter-name>loginFilter</filter-name> 
    <url-pattern>/userLogin</url-pattern> 
</filter-mapping> 

</web-app>

我的卡塔利娜日誌錯誤

03-Sep-2014 08:14:40.087 SEVERE [localhost-startStop-1]    org.apache.catalina.core.StandardContext.filterStart Exception starting filter loginFilter 
java.lang.NoClassDefFoundError: com/drona/action/LoginFilter (wrong name: LoginFilter) 
at java.lang.ClassLoader.defineClass1(Native Method) 
at java.lang.ClassLoader.defineClass(ClassLoader.java:760) 
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) 
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2479) 
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:880) 
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1294) 
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1177) 
at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:550) 
at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:531) 
at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:150) 
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258) 
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:105) 
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4603) 
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5210) 
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) 
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:724) 
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:700) 
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:714) 
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1071) 
at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1722) 
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
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) 

03-Sep-2014 08:14:40.627 INFO [localhost-startStop-1]  org.apache.catalina.core.ApplicationContext.log ContextListener: contextInitialized() 
03-Sep-2014 08:14:40.627 INFO [localhost-startStop-1] org.apache.catalina.core.ApplicationContext.log SessionListener: contextInitialized()

我有我的過濾器類LoginFilter在完全我在xml中定義了相同的文件夾（WEB-INF/classes/com/drona/action/LoginFilter）。但我不知道爲什麼。我只是有一個疑問，我必須將其定義爲/ com/drona/action/LoginFilter在xml文件中？

來源

2014-09-03 user562

不，web.xml配置採用類名稱。仔細檢查它是否真的在'WEB-INF/classes'中，並且沒有錯別字。 – 2014-09-03 03:05:26

只是我想通了，如果我把過濾器類放在類文件夾而不是com.drona.action.filterclass，並將過濾器類路徑更改爲LoginFilter，所以它會直接調用它..但這不是確切的解決方案，無論如何，我會找到一些或其他方式..必須檢查它的所有可能的情況..

來源

2014-09-03 03:22:16 user562

開始過濾器的異常 - Servlet

回答

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