gwt 部署到tomcat 上的问题

2011-10-11 11:11:14 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: contextInitialized()
2011-10-11 11:11:14 org.apache.catalina.core.ApplicationContext log
信息: SessionListener: contextInitialized()
2011-10-11 11:11:16 org.apache.catalina.core.ApplicationContext log
信息: Initializing Spring root WebApplicationContext
2011-10-11 11:11:39 org.apache.catalina.core.ApplicationContext log
严重: Exception while dispatching incoming RPC call
com.google.gwt.user.server.rpc.UnexpectedException: Service method 'public abstract java.lang.String com.zty.hotel.gwt.client.rpc.MemberPrimRpc.existUser(com.zty.hotel.entity.Member)' threw an unexpected exception: java.lang.NoClassDefFoundError: org/apache/http/HttpEntity
at com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java:385)
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:588)
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:551)
at org.spring4gwt.server.SpringGwtRemoteServiceServlet.processCall(SpringGwtRemoteServiceServlet.java:37)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248)
at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.NoClassDefFoundError: org/apache/http/HttpEntity
at com.zty.hotel.utils.thriftUtil.ThriftUtil.serviceInstance(ThriftUtil.java:20)
at com.zty.hotel.server.rpc.impl.MemberPrimRpcImpl.buildService(MemberPrimRpcImpl.java:28)
at com.zty.hotel.server.rpc.impl.MemberPrimRpcImpl.existUser(MemberPrimRpcImpl.java:38)
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 com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:569)
... 18 more
Caused by: java.lang.ClassNotFoundException: org.apache.http.HttpEntity
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1516)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1361)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
... 26 more