dwr的小例子

chuanru920

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2011-09 ( 7)
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dwr web html javascript

用的5个jar包：
commons-logging.jar
dom4j-1.6.1.jar
dwr.jar
jdom.jar
xerces.jar
web.xml：
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<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>
　　</servlet>
　　<servlet-mapping>
　　<servlet-name>dwr-invoker</servlet-name>
　　<url-pattern>/dwr/*</url-pattern>
　　</servlet-mapping>
<welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
dwr.xml：
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE dwr PUBLIC "-//GetAhead Limited//DTD Direct Web Remoting 2.0//EN" "http://getahead.org/dwr/dwr20.dtd">
<dwr>
<allow>
<create creator="new" javascript="text" scope="session">
<param name="class" value="com.dwr.Text"/>
<include method="test" />
</create></allow></dwr>
Text.java:
package com.dwr;

public class Text {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub

}
public void test()
{
System.out.println("-------dwr测试--------");
}
}
text.js:
function a()
{
text.test();
}
dwr.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
    <base href="<%=basePath%>">

    <title>My JSP 'dwr.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/engine.js"></script>
　　<script type="text/javascript" src="dwr/util.js"></script>
　　<script type="text/javascript" src="dwr/interface/text.js"></script>
　　<script type="text/javascript" src="template/text.js"></script>
</head>

<body>
    This is my JSP page. <br>
    <input type="button" value="测试" onClick="a()">
</body>
</html>

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