dwr 問題?

我的配置文件如下:dwr.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE dwr PUBLIC "-//GetAhead Limited//DTD Direct Web Remoting 2.0//EN" "http://getahead.ltd.uk/dwr/dwr20.dtd">
<dwr>  <allow>
   <create creator="new" javascript="JDate" scope="application">
   <param name="class" value="java.util.Date"/>
   </create>
   <create creator="new" javascript="JList" scope="application">
   <param name="class" value="java.util.ArrayList"/>
   </create>
  </allow>
</dwr>web.xml
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd"><web-app id="dwr">  <display-name>DWR (Direct Web Remoting)</display-name>
  <description>A demo of how to call Java on the server directly from Javascript on the client</description>  <servlet>
    <servlet-name>dwr-invoker</servlet-name>
    <display-name>DWR Servlet</display-name>
    <description>Direct Web Remoter Servlet</description>
    <servlet-class>org.directwebremoting.servlet.DwrServlet</servlet-class>
    <init-param>
      <param-name>debug</param-name>
      <param-value>true</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>  <servlet-mapping>
    <servlet-name>dwr-invoker</servlet-name>
    <url-pattern>/dwr/*</url-pattern>
  </servlet-mapping></web-app>
index.jsp<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>My JSP 'MyJsp.jsp' starting page</title>

    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <script type="text/javascript" src="dwr/interface/JDate.js"></script>
    <script type="text/javascript" src="dwr/interface/JList.js"></script>
    <script type="text/javascript" src="dwr/engine.js"></script>
    <script language="javascript">
    function init(){
    JDate.getYear(load);
    }
    function load(data){
    alert(data+1900+'年');
    }
    </script>
    
  </head>


  <body >
    This is my JSP page. <br>
   <form name="name1">
    <input type="button" name="tt" value="Test" onclick="init()">
   </form>
  </body>
</html>
就這樣簡單的.在TOMCAT中啟動
    改為.HTML可以正常瀏覽,但點擊按鈕發生錯誤.
    改為.jsp不能瀏覽.真的不知怎么的了?

剛測試了一下.
1.用*.jsp時不能瀏覽是因為我在應用的lib下加入了jsp-api.jar,但不知為何不能加入?
2.我刪除jsp-api.jar,后正常顯示,但出現如下問題:
        function init(){
    JDate.getYear();
        }<body onload="init()">
時,出現javascript錯誤:沒有JDate對象?

<%@ page language="java" import="java.util.*" pageEncoding="gbk"%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>My JSP 'MyJsp.jsp' starting page</title>

    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <script type="text/javascript" src="<%=request.getContextPath()%>/interface/JDate.js"></script>
    <script type="text/javascript" src="<%=request.getContextPath()%>/interface/JList.js"></script>
    <script type="text/javascript" src="<%=request.getContextPath()%>/engine.js"></script>
    <script type='text/javascript' src='<%=request.getContextPath()%>/util.js'> </script>
    <script language="javascript">
    function init(){
    JDate.getYear(load);
    }
    function load(){
    alert('1900年');
    }
    </script>
    
  </head>


  <body >
    This is my JSP page. <br>
   <form name="name1">
    <input type="button" name="tt" value="Test" onclick="init()">
   </form>
  </body>
</html>javascript 錯誤:"JDate"未定義另:更新為:<script type="text/javascript" src="<%=request.getContextPath()%>/dwr/interface/JDate.js"></script>
    <script type="text/javascript" src="<%=request.getContextPath()%>/dwr/interface/JList.js"></script>
    <script type="text/javascript" src="<%=request.getContextPath()%>/dwr/engine.js"></script>
    <script type='text/javascript' src='<%=request.getContextPath()%>/dwr/util.js'> </script>javascript錯誤:第300多行有誤(我的頁面沒有這么多行,應該是dwr的javascript內庫有誤吧?)
反正我搞了好久都搞不定.還望各位先輩們幫幫忙啊!在此感激不盡!!!

电击按钮前还是之后报错？
具体的javascript错误信息是什么？
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JDate.getYear给这个方法加个参数试试看。
我之前用的都是有参数的。
因为dwr本身就是为了页面和后台直接交互。你这样没有参数其实本身就不合适。
加个参数，哪怕根本没用到也行。先试试看

我現在加了參數
  <script language="javascript">
    function init(){
        JDate.getYear(load);
    }
    function load(data){
        alert(data+1900+'年');
    }
  </script>
在dwr目錄下有util.js,engine.js
  現在的javascript錯誤變為行1088 "EvalError"未被定義.我查了一下.應在是在engine.js中出現的.
我的站點名為:"dwr-char",

代码帖出来。
我也没看你加什么参数啊
－－－－－
  <script language="javascript">
    function init(){
var temp="1";
        JDate.getYear(temp,load);
    }
    function load(data){
        alert(data+1900+'年');
    }
  </script>

解决方案 »