dwr自动生成js

今天试着用dwr搭建了一个小例子：

从官方网站下载dwr.jar包。

新建项目dwrTest,然后将dwr.ja放在你 webapp 的 WEB-INF/lib目录下。

1.在WEN-INF/下新建web.xml文件

     Xml代码 
     
     
   
 <?xmlversion="1.0"encoding="ISO-8859-1"?>
 <!DOCTYPEweb-appPUBLIC
 "-//SunMicrosystems,Inc.//DTDWebApplication2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd">
 
 <web-app>
 <servlet>
 <servlet-name>dwr-invoker</servlet-name>
 <servlet-class>org.directwebremoting.servlet.DwrServlet</servlet-class>
 </servlet>
 <servlet-mapping>
 <url-pattern>/dwr/*</url-pattern>
 </servlet-mapping>
 </web-app>

2.在WEN-INF/下新建web.xml文件

<?xmlversion="1.0"encoding="UTF-8"?> <!DOCTYPEdwrPUBLIC"-//GetAheadLimited//DTDDirectWebRemoting3.0//EN""http://getahead.org/dwr/dwr30.dtd">
 <dwr>
 <allow>
 <createcreator="new"javascript="helloservice">
 <paramname="class"value="com.dwr.service.HelloWorld"/>
 </create>
 </allow>
 </dwr>

3.编写 HelloWorld

     Java代码 
     
     
   
packagecom.dwr.service; publicclassHelloWorld{
 publicStringsayHello(Stringname){
 return"HelloWorld"+name;
 }
 }

4. 测试 DWR 将代码放入应用服务器（比如Tomcat），启动。然后在地址栏输入：http://localhost/dwjTest/dwr

Modules known to DWR:

helloservice(NewCreator for com.dwr.service.HelloWorld)

然后点击helloservice，会看到刚才写的sayHello()的方法,上面有dwr自动生成的三个js文件

Methods For: helloservice (NewCreator for com.dwr.service.HelloWorld)

To use this class in your javascript you will need the following script includes:
  <script type='text/javascript' src='/dwjTest/dwr/engine.js
'></script>
  <script type='text/javascript' src='/dwjTest/dwr/interface/helloservice.js
'></script>
In addition there is an optional utility script:
  <script type='text/javascript' src='/dwjTest/dwr/util.js
'></script>
Replies from DWR are shown with a yellow background if they are simple or in an alert Box otherwise.
The inputs are evaluated as Javascript so strings must be quoted before execution.
sayHello( );

5.创建jsp页面，引入上面的三个js;

HTML代码

<%@pagelanguage="java"contentType="text/html;charset=UTF-8"

pageEncoding="UTF-8"%>

<!DOCTYPEhtmlPUBLIC"-//W3C//DTDHTML4.01Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<Metahttp-equiv="Content-Type"content="text/html;charset=UTF-8">

<title>Inserttitlehere</title>

<scripttype='text/javascript'src='/dwjTest/dwr/engine.js'></script>

<scripttype='text/javascript'src='/dwjTest/dwr/interface/helloservice.js'></script>

<scripttype='text/javascript'src='/dwjTest/dwr/util.js'></script>

<scripttype="text/javascript">

functionfirstDwr(){

helloservice.sayHello("adsf",callBackHello);

}

functioncallBackHello(data){

alert(data);

</script>

</head>

<body>

<inputtype="button"name="button"value="测试"onclick="firstDwr()">

</body>

</html>

dwr自动生成js

Modules known to DWR:

Methods For: helloservice (NewCreator for com.dwr.service.HelloWorld)

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