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標(biāo)題: JSTL問題 [打印本頁]
作者: angus1923    時(shí)間: 2006-08-27 10:35
標(biāo)題: JSTL問題
action
package com.test.struts.action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import com.test.struts.form.testform;
public class testaction extends Action {
        public ActionForward execute(ActionMapping mapping, ActionForm form,
                        HttpServletRequest request, HttpServletResponse response){
               
                testform t=(testform) form;
               
                String msg=t.getTest();
               
                request.setAttribute("myMsg",msg);
               
                return mapping.findForward("msg";
               
               
        }
}
form
package com.test.struts.form;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionMapping;
import javax.servlet.http.HttpServletRequest;
public class testform extends ActionForm {
        private String test;
        public ActionErrors validate(ActionMapping actionMapping,
                        HttpServletRequest httpServletRequest) {

                return null;
        }

        public void reset() {
       this.test=null;
        }

        public String getTest() {
                return test;
        }

        public void setTest(String test) {
                this.test = test;
        }
}
JSP
test.jsp
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="h" %>
<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>
<%@ taglib uri="/WEB-INF/struts-nested.tld" prefix="nested" %>
<%@ taglib uri="/WEB-INF/struts-tiles.tld" prefix="tiles" %>
<%@ page contentType="text/html; charset=GBK" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<h:html >
  <head>

    <title>test.jsp</title>

  </head>
  
  <body>
  
<h:form action="/testAction.do" method="OST">

  myMsg:<input type="text" name="test" size="12" maxlength="12"/>
<h:submit>*****</h:submit>
</h:form>
  </body>
</h:html>
msg.jsp
<%@ page contentType="text/html; charset=GBK" %>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="h" %>
<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>
<%@ taglib uri="/WEB-INF/struts-nested.tld" prefix="nested" %>
<%@ taglib uri="/WEB-INF/struts-tiles.tld" prefix="tiles" %>
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c" %>


<h:html >
  <head>

    <title>msg</title>

  </head>
  
  <body>
    This a struts page. <br>


   msg:<cut value="${myMsg}" escapeXml="false"/>

  
  </body>
</h:html>
<cut value="${myMsg}" escapeXml="false"/>運(yùn)行的結(jié)果為${myMsg}
web.xml
<taglib>
    <taglib-uri>http://java.sun.com/jstl/core</taglib-uri>
    <taglib-location>/WEB-INF/c.tld</taglib-location>
  </taglib>
  <taglib>
    <taglib-uri>http://java.sun.com/jstl/core_rt</taglib-uri>
    <taglib-location>/WEB-INF/c-rt.tld</taglib-location>
  </taglib>
  <taglib>
    <taglib-uri>http://java.sun.com/jstl/xml</taglib-uri>
    <taglib-location>/WEB-INF/x.tld</taglib-location>
  </taglib>
  <taglib>
    <taglib-uri>http://java.sun.com/jstl/xml_rt</taglib-uri>
    <taglib-location>/WEB-INF/x-rt.tld</taglib-location>
  </taglib>
  <taglib>
    <taglib-uri>http://java.sun.com/jstl/fmt</taglib-uri>
    <taglib-location>/WEB-INF/fmt.tld</taglib-location>
  </taglib>
  <taglib>
    <taglib-uri>http://java.sun.com/jstl/fmt_rt</taglib-uri>
    <taglib-location>/WEB-INF/fmt-rt.tld</taglib-location>
  </taglib>
  <taglib>
    <taglib-uri>http://java.sun.com/jstl/sql</taglib-uri>
    <taglib-location>/WEB-INF/sql.tld</taglib-location>
  </taglib>
  <taglib>
    <taglib-uri>http://java.sun.com/jstl/sql_rt</taglib-uri>
    <taglib-location>/WEB-INF/sql-rt.tld</taglib-location>
  </taglib>
  <taglib>
    <taglib-uri>/WEB-INF/struts-bean.tld</taglib-uri>
    <taglib-location>/WEB-INF/struts-bean.tld</taglib-location>
  </taglib>
  <taglib>
    <taglib-uri>/WEB-INF/struts-html.tld</taglib-uri>
    <taglib-location>/WEB-INF/struts-html.tld</taglib-location>
  </taglib>
  <taglib>
    <taglib-uri>/WEB-INF/struts-logic.tld</taglib-uri>
    <taglib-location>/WEB-INF/struts-logic.tld</taglib-location>
  </taglib>
  <taglib>
    <taglib-uri>/WEB-INF/struts-tiles.tld</taglib-uri>
    <taglib-location>/WEB-INF/struts-tiles.tld</taglib-location>
  </taglib>
  <taglib>
    <taglib-uri>/WEB-INF/struts-nested.tld</taglib-uri>
    <taglib-location>/WEB-INF/struts-nested.tld</taglib-location>
  </taglib>

requestScope、sessionScope都有試過 -- --不行

request.setAttribute("myMsg" )可以獲取值
但request.getParameter("myMsg";無法獲取值=null

JSTL的兩個(gè)JAR包都有倒入
TLD和JAR包的版本完全一樣的
找了好久不知道問題出在哪里



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