调用欢迎文件servlet会导致java.lang.ClassNotFoundException:org.apache.struts2.dispatcher.FilterDispatcher

调用servlet作为欢迎文件时，我得到了一个

ClassNotFoundException:org.apache.struts2.dispatcher.FilterDispatcher

下面是

web.xml

：

支柱2
org.apache.struts2.dispatcher.FilterDispatcher
支柱2
/*
欢迎
欢迎光临
欢迎
/欢迎光临
10
欢迎

下面是我的servlet类：

package java;

import java.io.IOException;
import java.org.in.pesca.viewForms.LoginForm;

import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

@SuppressWarnings("serial")
public class Welcome extends HttpServlet{
    @Override
    protected void service(HttpServletRequest req, HttpServletResponse resp)
            throws ServletException, IOException {

        HttpSession s = req.getSession();
        if(!s.isNew()){
            s.invalidate();
            s = req.getSession(true);
        }

        LoginForm loginForm = new LoginForm();
        Cookie[] cookies = req.getCookies();
        if(cookies == null || cookies.length == 0){
            for (Cookie cookie : cookies) {
                if(cookie.getName().trim().equals("UserNameCookie")){
                    loginForm.setUserName(cookie.getValue().trim());
                    loginForm.setRememberMe(true);
                } else if(cookie.getName().trim().equals("PasswordCookie")){
                    loginForm.setPassword(cookie.getValue().trim());
                    loginForm.setRememberPassword(true);
                }
            }
        }
        s.setAttribute("LoginForm", loginForm);

        req.getRequestDispatcher("index.jsp").forward(req, resp);
    }
}

下面是堆栈跟踪：

[#|2011-12-07T01:26:22.443+0530|SEVERE|glassfish3.1|javax.enterprise.system.container.web.com.sun.enterprise.web|_ThreadID=62;_ThreadName=admin-thread-pool-4848(2);|WebModule[/SEAFOOD]PWC1270: Exception starting filter struts2
java.lang.InstantiationException
    at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:124)
    at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4625)
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:5316)
    at com.sun.enterprise.web.WebModule.start(WebModule.java:500)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:917)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:901)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:755)
    at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1980)
    at com.sun.enterprise.web.WebContainer.loadWebModule(WebContainer.java:1630)
    at com.sun.enterprise.web.WebApplication.start(WebApplication.java:100)
    at org.glassfish.internal.data.EngineRef.start(EngineRef.java:130)
    at org.glassfish.internal.data.ModuleInfo.start(ModuleInfo.java:269)
    at org.glassfish.internal.data.ApplicationInfo.start(ApplicationInfo.java:286)
    at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:461)
    at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:240)
    at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:370)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$1.execute(CommandRunnerImpl.java:355)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:370)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1067)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1200(CommandRunnerImpl.java:96)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1247)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1235)
    at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:465)
    at com.sun.enterprise.v3.admin.AdminAdapter.service(AdminAdapter.java:222)
    at com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:168)
    at com.sun.enterprise.v3.server.HK2Dispatcher.dispath(HK2Dispatcher.java:117)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:234)
    at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:822)
    at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:719)
    at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1013)
    at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225)
    at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
    at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
    at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
    at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
    at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
    at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
    at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
    at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.ClassNotFoundException: org.apache.struts2.dispatcher.FilterDispatcher
    at org.glassfish.web.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1518)
    at org.glassfish.web.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1368)
    at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:252)
    at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:120)
    ... 40 more
|#]

[#|2011-12-07T01:26:22.459+0530|INFO|glassfish3.1|javax.enterprise.system.container.web.com.sun.enterprise.web|_ThreadID=62;_ThreadName=admin-thread-pool-4848(2);|WEB0671: Loading application [SEAFOOD] at [/SEAFOOD]|#]

[#|2011-12-07T01:26:22.620+0530|INFO|glassfish3.1|javax.enterprise.system.tools.admin.org.glassfish.deployment.admin|_ThreadID=62;_ThreadName=admin-thread-pool-4848(2);|SEAFOOD was successfully deployed in 1,212 milliseconds.|#]

[#|2011-12-07T01:27:36.945+0530|INFO|glassfish3.1|javax.enterprise.system.container.web.com.sun.enterprise.web|_ThreadID=37;_ThreadName=http-thread-pool-8080(4);|PWC1412: WebModule[null] ServletContext.log():PWC1409: Marking servlet Welcome as unavailable|#]

[#|2011-12-07T01:27:36.946+0530|SEVERE|glassfish3.1|javax.enterprise.system.container.web.com.sun.enterprise.web|_ThreadID=37;_ThreadName=http-thread-pool-8080(4);|WebModule[/SEAFOOD]Error loading WebappClassLoader (delegate=true; repositories=WEB-INF/classes/) java.Welcome
java.lang.ClassNotFoundException: java.Welcome
    at org.glassfish.web.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1518)
    at org.glassfish.web.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1368)
    at org.apache.catalina.core.StandardWrapper.loadServletClass(StandardWrapper.java:1394)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1258)
    at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:1070)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:189)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
    at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98)
    at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162)
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:326)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:227)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:170)
    at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:822)
    at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:719)
    at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1013)
    at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225)
    at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
    at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
    at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
    at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
    at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
    at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
    at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
    at java.lang.Thread.run(Thread.java:619)
|#]

[#||2011-12-07T01:26:22.443+0530 | SEVERE | glassfish3.1 | javax.enterprise.system.container.web.com.sun.enterprise.web | u ThreadID=62；| u ThreadName=admin-thread-pool-4848（2）；| WebModule[/PWC1270:Exception starting filter struts2
java.lang.InstanceionException
位于org.apache.catalina.core.ApplicationFilterConfig.（ApplicationFilterConfig.java:124）
位于org.apache.catalina.core.StandardContext.filterStart（StandardContext.java:4625）
位于org.apache.catalina.core.StandardContext.start（StandardContext.java:5316）
位于com.sun.enterprise.web.WebModule.start（WebModule.java:500）
位于org.apache.catalina.core.ContainerBase.addChildInternal（ContainerBase.java:917）
位于org.apache.catalina.core.ContainerBase.addChild（ContainerBase.java:901）
位于org.apache.catalina.core.StandardHost.addChild（StandardHost.java:755）
在com.sun.enterprise.web.WebContainer.loadWebModule（WebContainer.java:1980）上
在com.sun.enterprise.web.WebContainer.loadWebModule（WebContainer.java:1630）上
位于com.sun.enterprise.web.WebApplication.start（WebApplication.java:100）
位于org.glassfish.internal.data.EngineRef.start（EngineRef.java:130）
位于org.glassfish.internal.data.ModuleInfo.start（ModuleInfo.java:269）
位于org.glassfish.internal.data.ApplicationInfo.start（ApplicationInfo.java:286）
位于com.sun.enterprise.v3.server.ApplicationLifecycle.deploy（ApplicationLifecycle.java:461）
位于com.sun.enterprise.v3.server.ApplicationLifecycle.deploy（ApplicationLifecycle.java:240）
位于org.glassfish.deployment.admin.DeployCommand.execute（DeployCommand.java:370）
位于com.sun.enterprise.v3.admin.CommandRunnerImpl$1.execute（CommandRunnerImpl.java:355）
位于com.sun.enterprise.v3.admin.CommandRunnerImpl.docomand（CommandRunnerImpl.java:370）
位于com.sun.enterprise.v3.admin.CommandRunnerImpl.docomand（CommandRunnerImpl.java:1067）
com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1200（CommandRunnerImpl.java:96）
位于com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute（CommandRunnerImpl.java:1247）
位于com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute（CommandRunnerImpl.java:1235）
位于com.sun.enterprise.v3.admin.AdminAdapter.docomand（adminapter.java:465）
位于com.sun.enterprise.v3.admin.adminapter.service（adminapter.java:222）
位于com.sun.grizzly.tcp.http11.GrizzlyAdapter.service（GrizzlyAdapter.java:168）
位于com.sun.enterprise.v3.server.HK2Dispatcher.dispatcher（HK2Dispatcher.java:117）
位于com.sun.enterprise.v3.services.impl.ContainerMapper.service（ContainerMapper.java:234）
位于com.sun.grizzly.http.ProcessorTask.InvokeApter（ProcessorTask.java:822）
位于com.sun.grizzly.http.ProcessorTask.doProcess（ProcessorTask.java:719）
位于com.sun.grizzly.http.ProcessorTask.process（ProcessorTask.java:1013）
在com.sun.grizzly.http.DefaultProtocolFilter.execute上（DefaultProtocolFilter.java:225）
位于com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter（DefaultProtocolChain.java:137）
在com.sun.grizzly.DefaultProtocolChain.execute（DefaultProtocolChain.java:104）上
在com.sun.grizzly.DefaultProtocolChain.execute（DefaultProtocolChain.java:90）上
http.HttpProtocolChain.execute（HttpProtocolChain.java:79）
位于com.sun.grizzly.ProtocolChainContextTask.doCall（ProtocolChainContextTask.java:54）
在com.sun.grizzly.SelectionKeyContextTask.call上（SelectionKeyContextTask.java:59）
位于com.sun.grizzly.ContextTask.run（ContextTask.java:71）
位于com.sun.grizzly.util.AbstractThreadPool$Worker.doWork（AbstractThreadPool.java:532）
位于com.sun.grizzly.util.AbstractThreadPool$Worker.run（AbstractThreadPool.java:513）
运行（Thread.java:619）
原因：java.lang.ClassNotFoundException:org.apache.struts2.dispatcher.FilterDispatcher
位于org.glassfish.web.loader.WebappClassLoader.loadClass（WebappClassLoader.java:1518）
位于org.glassfish.web.loader.WebappClassLoader.loadClass（WebappClassLoader.java:1368）
位于org.apache.catalina.core.ApplicationFilterConfig.getFilter（ApplicationFilterConfig.java:252）
位于org.apache.catalina.core.ApplicationFilterConfig.（ApplicationFilterConfig.java:120）
…40多
|#]
[#| 2011-12-07T01:26:22.459+0530 | INFO | glassfish3.1 | javax.enterprise.system.container.web.com.sun.enterprise.web | | u ThreadID=62；| u ThreadName=admin-thread-pool-4848（2）；| WEB0671:在| | | |海鲜]加载应用程序[海鲜]
[#| 2011-12-07T01:26:22.620+0530 | INFO | glassfish3.1 | javax.enterprise.system.tools.admin.org.glassfish.deployment.admin | | u ThreadID=62；| u ThreadName=admin-thread-pool-4848（2）；|海鲜在1212毫秒内成功部署。|
[#| 2011-12-07T01:27:36.945+0530 | INFO | glassfish3.1 | javax.enterprise.system.container.web.com.sun.enterprise.web | | u ThreadID=37；| u ThreadName=http-thread-pool-8080（4）；| PWC1412:WebModule[null]ServletContext.log（）：PWC1409:将servlet欢迎标记为不可用|
javax.enterprise.system.container.web.com.sun.enterprise.web | u ThreadID=37；| u ThreadName=http-thread-pool-8080（4）；| WebModule[/seaft]加载WebappClassLoader（委托=true；存储库=web-INF/classes/）java时出错。欢迎
java.lang.ClassNotFoundException:java.Welcome
位于org.glassfish.web.loader.WebappClassLoader.loadClass（WebappClassLoader.java:1518）
位于org.glassfish.web.loader.WebappClassLoader.loadClass