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100分跪求高手解答,多谢!(加急)

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100分跪求高手解答,谢谢!(加急)
我用的是tomcat5.0.29跑struts1.2程序,能找到文件,就是打开jsp是总是报错,找不到:错误是

HTTP   Status   500   -  

--------------------------------------------

type   Exception   report

message  

description   The   server   encountered   an   internal   error   ()   that   prevented   it   from   fulfilling   this   request.

exception  

javax.servlet.ServletException:   Cannot   retrieve   mapping   for   action   /createNumberAction
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:845)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:778)
org.apache.jsp.form.guess_jsp._jspService(guess_jsp.java:161)
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  

javax.servlet.jsp.JspException:   Cannot   retrieve   mapping   for   action   /createNumberAction
org.apache.struts.taglib.html.FormTag.lookup(FormTag.java:753)
org.apache.struts.taglib.html.FormTag.doStartTag(FormTag.java:443)
org.apache.jsp.form.guess_jsp._jspx_meth_html_form_0(guess_jsp.java:194)
org.apache.jsp.form.guess_jsp._jspService(guess_jsp.java:98)
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)


note   The   full   stack   trace   of   the   root   cause   is   available   in   the   Apache   Tomcat/5.0.29   logs.

我的struts-config是:
<?xml   version= "1.0 "   encoding= "UTF-8 "?>
<!DOCTYPE   struts-config   PUBLIC   "-//Apache   Software   Foundation//DTD   Struts   Configuration   1.2//EN "   "http://struts.apache.org/dtds/struts-config_1_2.dtd ">

<struts-config>
    <data-sources   />
    <form-beans   >
        <form-bean   name= "createNumberForm "   type= "com.yourcompany.struts.form.CreateNumberForm "   />
        <form-bean   name= "judgeForm "   type= "com.yourcompany.struts.form.JudgeForm "   />

    </form-beans>

    <global-exceptions   />
    <global-forwards   />
    <action-mappings   >
        <action
            attribute= "createNumberForm "
            input= "/form/guess.jsp "
            name= "createNumberForm "
            path= "/createNumber "
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