dwr小例子

最新推荐文章于 2021-10-19 16:52:18 发布

iteye_2315

最新推荐文章于 2021-10-19 16:52:18 发布

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分类专栏：学习心得文章标签： DWR Java XML Web HTML

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:lol: web.xml文件的编写

	
  <servlet>
      <servlet-name>dwr-invoker</servlet-name> 
	<servlet-class>uk.ltd.getahead.dwr.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>

添加dwr.xml文件


<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE dwr PUBLIC "-//GetAhead Limited//DTD Direct Web Remoting 1.0//EN" "http://www.getahead.ltd.uk/dwr/dwr10.dtd"> 
 <dwr> 
   <allow> 
     <create creator="new" javascript="Demo"> 
         <param name="class" value="com.Demo"/> 
     </create> 
   </allow> 
</dwr>

:wink: java类文件


package com;

public class Demo {
   public String sayHello(String name) { 
      return "Hello, " + name; 
   } 
}

8) html文件demo.xtml


    <title>Text Demo</title> 
  <script src='dwr/interface/Demo.js'></script> 
  <script src='dwr/engine.js'></script> 
  <script type='text/javascript' src='dwr/util.js'></script>
  <script> 

     var allname;
     function update() 
     { 

        var name = dwr.util.getValue("demoName");
        Demo.sayHello(name, function(data) 
         { 
             dwr.util.setValue("demoReply", data); 
             allname=data;
         }); 
        alert(allname);
     }
    </script> 
    </head> 
    <body> 
    <p> Name: <input type="text" id="demoName"/> 
              <input value="Send" type="button" onclick="update()"/>
               <br/> 
        Reply: <span id="demoReply"></span> 
    </p> 
    </body> 
    </html>