新鸟问个弱弱的问题..关于XFire+Spring构建Web Service问题

我在这个上面看了
http://blog.csdn.net/Mr_Von/archive/2008/10/16/3086773.aspx
做了下直接运行类能得出结果...可是我想把他改成访问JSP页面直接输出...
我的JSP页面<%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    
    
    <title>My JSP 'index.jsp' starting page</title>
  
  </head>
  
  <body>
    <%=new test.WebServiceClientTest().testClient() %> <br>
  </body>
</html>结果出以下错误 
javax.servlet.ServletException: org/apache/commons/httpclient/methods/RequestEntity
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:846)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:779)
org.apache.jsp.index_jsp._jspService(index_jsp.java:67)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause java.lang.NoClassDefFoundError: org/apache/commons/httpclient/methods/RequestEntity
java.lang.Class.getDeclaredConstructors0(Native Method)
java.lang.Class.privateGetDeclaredConstructors(Class.java:2328)
java.lang.Class.getConstructor0(Class.java:2640)
java.lang.Class.getConstructor(Class.java:1629)
org.codehaus.xfire.transport.http.HttpChannel.sendViaClient(HttpChannel.java:99)
org.codehaus.xfire.transport.http.HttpChannel.send(HttpChannel.java:44)
org.codehaus.xfire.handler.OutMessageSender.invoke(OutMessageSender.java:26)
org.codehaus.xfire.handler.HandlerPipeline.invoke(HandlerPipeline.java:110)
org.codehaus.xfire.client.Invocation.invoke(Invocation.java:75)
org.codehaus.xfire.client.Client.invoke(Client.java:335)
org.codehaus.xfire.client.XFireProxy.handleRequest(XFireProxy.java:77)
org.codehaus.xfire.client.XFireProxy.invoke(XFireProxy.java:57)
$Proxy1.sayHelloWorld(Unknown Source)
test.WebServiceClientTest.testClient(WebServiceClientTest.java:19)
org.apache.jsp.index_jsp._jspService(index_jsp.java:58)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)请高手解答...新鸟刚刚接触这个.....