一段代码添加到web项目里面运行报错，在外面单独运行没问题！这是怎么回事。。

Question

请高手帮忙看看这个错 总是到ObjectInputStream那里报错！String urlStr = server;
if(!urlStr.endsWith("/"))
urlStr += "/";
urlStr += "servlet/WindchillAuthGW/" + "ext.test.CommunicationAgentOnServer/invoke";
URL url = new URL(urlStr);
System.out.println(">>> url is : " + url.toExternalForm()); HTTPConnection conn = new HTTPConnection(url);
conn.setAllowUserInteraction(false);
conn.addBasicAuthorization("Windchill", user, pass);
CallArgs callArgs = new CallArgs(user, pass, method, className, object, types, args);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(bos);
oos.writeObject(callArgs); System.out.println("calling: " + server + "/" + className + "." + method);
HTTPClient.HTTPResponse resp = conn.Post(url.getPath(), bos.toByteArray());
if (resp.getStatusCode() == 401)
throw new Exception("服务器登录失败或登录配置信息错误..." + server + ", " + user);

ObjectInputStream ois = new ObjectInputStream(resp.getInputStream());
Object o = ois.readObject();
ois.close();
return o;加到MyEclipse里面以后就报这个错！（我怀疑过tomcat  因为这段代码在java编译器下运行没问题...）严重: Servlet.service() for servlet action threw exception
java.io.EOFException
at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2281)
at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:2750)
at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:780)
at java.io.ObjectInputStream.<init>(ObjectInputStream.java:280)
at com.C17.C1701.dao.C1701DAO.invoke(C1701DAO.java:82)
at com.C17.C1701.dao.C1701DAO.callMethodInRemoteSvr(C1701DAO.java:56)
at com.C17.C1701.dao.C1701DAO.do_SJBOM(C1701DAO.java:49)
at com.C17.C1701.dao.C1701DAO$$FastClassByCGLIB$$f62b0a1a.invoke(<generated>)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
at org.springframework.aop.framework.Cglib2AopProxy$CglibMethodInvocation.invokeJoinpoint(Cglib2AopProxy.java:694)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:77)
at com.common.action.LogListenManager.profile(LogListenManager.java:14)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:597)
at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:583)
at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:60)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:629)
at com.C17.C1701.dao.C1701DAO$$EnhancerByCGLIB$$9faa30d1.do_SJBOM(<generated>)
at com.C17.C1701.action.C1701Action.do_SJBOM(C1701Action.java:84)
at com.C17.C1701.action.C1701Action.doProcess(C1701Action.java:40)
at com.common.action.BaseAction.execute(BaseAction.java:81)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.init.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:56)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)