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sunqitang
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DWR的Hello world

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1 把dwr.jar包放入到工程中,并修改web.xml文件,加入:

 

 <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>
 

2 在web-inf下面加入dwr.xml文件。

 

<?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="T1">
      <param name="class" value="com.bjsxt.dwrtest.Test1"/>
    </create>
  </allow>
</dwr>

 3 在页面中<head>加入:

       <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/T1.js"></script>

 

 

function a(){
		T1.sayHello(function(dates){
			alert(dates);
		});
	}

 

 

<input onclick="a();" type="button" value="dwr测试" />
 

4 加入dwr的实现类

 

package edu.dwr;

public class Test {
	public String sayHello(){
		return "Hello,World";
	}
}
 
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