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<listener>
        <listener-class>
                org.directwebremoting.servlet.EfficientShutdownServletContextAttributeListener
       </listener-class>
</listener>
<listener>
    <listener-class>org.directwebremoting.servlet.EfficientShutdownServletContextListener</listener-class>
</listener>
<listener>
    <listener-class>CheckSessionDwrServletContextListener</listener-class>
</listener>
<servlet>
        <servlet-name>dwr-invoker</servlet-name>
        <servlet-class>org.directwebremoting.servlet.DwrServlet</servlet-class>
        <init-param>
            <param-name>debug</param-name>
            <param-value>true</param-value>
        </init-param>
        <!--¼¤»îÂÖѯºÍComet¹¦ÄÜ-->
        <init-param>
            <param-name>activeReverseAjaxEnabled</param-name>
            <param-value>true</param-value>
        </init-param>
        <!-- ³ÌÐò¿ªÊ¼Ê±³õʼ»¯Rever


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upload.jsp
<%@ page language="java" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
    <head>
        <title>My JSP ''upload.jsp'' starting page</title>
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Ajax ¼òµ¥Ê¾Àý

<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
   <title>xmlhttprequest ajax demo</title>
    <script type ="text/javascript" language ="javascript" >
      ......

ajax´´½¨XMLHttpRequest¶ÔÏó

function ajaxFunction()
{
var xmlHttp;

try
{
// Firefox, Opera 8.0+, Safari
xmlHttp=new XMLHttpRequest();
}
catch (e)
{
// Internet Explorer
try
{
xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
}
catch (e)
{
try
......

Ajaxµ¯³öʾÀý ¿É¿ØÖÆʱ¼ä×ÔÓÉÇл»ºÍ¹Ø±Õ

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Ajaxµ¯³öʾÀý-¿É¿ ......
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