dwr配置

在web.xml中加入

   <servlet>
    <servlet-name>dwr-invoker</servlet-name>
    <servlet-class>org.directwebremoting.servlet.DwrServlet</servlet-class>

    <!-- This should NEVER be present in live -->
    <init-param>
      <param-name>debug</param-name>
      <param-value>true</param-value>
    </init-param>

    <load-on-startup>1</load-on-startup>
  </servlet>

  <servlet-mapping>
    <servlet-name>dwr-invoker</servlet-name>
    <url-pattern>/dwr/*</url-pattern>
  </servlet-mapping>

在web-inf下加入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>　　
   
   <!-- 一般向JavaScript公开的代码是public -->
   <!-- 
   	   creator的方式：new，none，spring
       none:一般用于公开静态代码
       spring:让spring来管理对象
    -->
   <!-- 
   		白名单(使用include)和黑名单（exclude）
    --> 
    
   <allow>
      <create javascript="HelloDwr" creator="new">
          <param name="class" value="com.cs.dwr.HelloDwr" ></param>
          <!-- 
          <exclude method="sayHello" />
      	   -->
      	   <!-- 
      	   <include method="sayHello"/>
      	    -->
      </create>
      
      <create javascript="TestArrListMap" creator="new">
      	 <param name="class" value="com.cs.dwr.TestArrListMap"></param>
      </create>
      <create javascript="HelloDate" creator="new">
      	 <param name="class" value="com.cs.dwr.HelloDate"></param>
      </create>
      <create javascript="HelloUser" creator="new">
      	 <param name="class" value="com.cs.dwr.HelloUser"></param>
      </create>
      <!-- 
      	  bean转换器使用set和get方法进行转换*****
      	  object转换器使用成员变量的名字进行转换
       -->
      <convert match="com.cs.dwr.User" converter="bean"></convert>
    
<!--  spring管理 示例      -->
	<create javascript="aclManager" creator="spring"  >
  		<param name="beanName" value="aclManager"></param>
  	</create>
   </allow>
   
  
</dwr>

在jsp页面上书写形式

 <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/HelloDwr.js'> </script>
	 
	 <script type="text/javascript">
	 	function sayHello() {
	 		HelloDwr.sayHello(function(data){
	 			alert(data) ;
	 		}) ;
	 	}
	 	
	 	function sayHelloWithParam(name){
	 		HelloDwr.sayHelloWithParam(name,function(data){
	 			alert(data) ;
	 		}) ;
	 	}
	 	
	 	function private(){
	 		HelloDwr.privateSayHello(function(data){
	 			alert(data) ;
	 		}) ;
	 	}
	 	
	 	function static(){
	 		HelloDwr.staticSayHello(function(data){
	 			alert(data) ;
	 		}) ;
	 	}
	 
	 </script>
	 
  </head>