dwr 配置

张玉龙

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DWR JSP Java XML Web


1 
导入dwr.jar包到项目lib中
commons-logging-1.1.1.jar

 
web.xml
  配置 sevlet  dwr-invoker  包path 拦截的类

<?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">
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
  <servlet>
   <servlet-name>dwr-invoker</servlet-name>
   <servlet-class>org.directwebremoting.servlet.DwrServlet</servlet-class>
  </servlet>
  <servlet-mapping>
  <servlet-name>dwr-invoker</servlet-name>
   <url-pattern>/dwr/*</url-pattern>
  </servlet-mapping>
</web-app>
------------------------------------------------------------------------------
2 映射js
create xml file from a DTD file-->http://getahead.org/dwr/dwr30.dtd
dwr.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE dwr PUBLIC
    "-//GetAhead Limited//DTD Direct Web Remoting 3.0//EN"
    "http://getahead.org/dwr/dwr30.dtd">
    
     <dwr>
      <allow>
        <create creator="new" javascript="HelloWorldService">
          <param name="class" value="com.test.HelloWorldService"></param>
        </create>
      </allow>
    </dwr>
------------------------------------------------------------------------------

3
文件夹 js
jquery1.4.js

jsp引入js
   <script src="./dwr/interface/LogService.js"></script>//<--这里是映射的js
   <script src="./dwr/engine.js"></script>
   <script type="text/javascript" src="./js/jquery-1.4.js"></script>
回调函数
<%@ 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 'index.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">
		<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->
		<script src="./dwr/interface/HelloWorldService.js"></script>
		<script src="./dwr/engine.js"></script>
		<script type="text/javascript" src="./js/jquery-1.4.js"></script>
		<script>
	function alertMsg(data) {

		$("div#area").html(data);

	}

	$("document").ready(

	function() {

		$("input#pressIt").click(

		function() {

			HelloWorldService.sayHello('this is letter!', alertMsg);

		}

		)

	}

	)
</script>
	</head>

	<body>
		<div id="area" style="clear: left;"></div>
		<input style="float: left;" id="pressIt" type="button"
			value="HelloWorldService" />
	</body>
</html>
------------------------------------------------------------------------------
4
HelloWorldService.java

package com.test;

public class HelloWorldService {

	public String sayHello(String message){
	
		return message;
	}
	
	
}

dwr.rar (1.1 MB)
下载次数: 5

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