在别人指导下写的一个DWR小小例子：
第一步 放dwr.jar到WEB-INF\lib下
第二步 配置web.xml里的servlet和servlet-mapping
[code]
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<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>
<load-on-startup>5</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dwr-invoker</servlet-name>
<url-pattern>/dwr/*</url-pattern>
</servlet-mapping>
</web-app>
[/code]
第三步，写一个最简单的dwr.xml，放在WEB-INF下
[code]
<?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="JavaDate">
<param name="class" value="java.util.Date"/>
</create>
</allow>
</dwr>
[/code]
然后写个html，里边引入dwr的engine.js和util.js和你在dwr.xml里定义的js
Date.html
[code]
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>date.html</title>
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="this is my page">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<!--<link rel="stylesheet" type="text/css" href="./styles.css">-->
<script type='text/javascript' src='dwr/interface/JavaDate.js'> </script>
<script type='text/javascript' src='dwr/engine.js'> </script>
<script type='text/javascript' src='dwr/util.js'> </script>
<script>
function callback(data) {
alert(data);}
JavaDate.getTime(callback);
</script>
</head>
<body>
</body>
</html>
[/code]
好了，启动TOMCAT，访问Date.html就可以看到结果：弹出一个对话框，上边显示服务器返回的当前时间值，类型为long
第一步 放dwr.jar到WEB-INF\lib下
第二步 配置web.xml里的servlet和servlet-mapping
[code]
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<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>
<load-on-startup>5</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dwr-invoker</servlet-name>
<url-pattern>/dwr/*</url-pattern>
</servlet-mapping>
</web-app>
[/code]
第三步，写一个最简单的dwr.xml，放在WEB-INF下
[code]
<?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="JavaDate">
<param name="class" value="java.util.Date"/>
</create>
</allow>
</dwr>
[/code]
然后写个html，里边引入dwr的engine.js和util.js和你在dwr.xml里定义的js
Date.html
[code]
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>date.html</title>
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="this is my page">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<!--<link rel="stylesheet" type="text/css" href="./styles.css">-->
<script type='text/javascript' src='dwr/interface/JavaDate.js'> </script>
<script type='text/javascript' src='dwr/engine.js'> </script>
<script type='text/javascript' src='dwr/util.js'> </script>
<script>
function callback(data) {
alert(data);}
JavaDate.getTime(callback);
</script>
</head>
<body>
</body>
</html>
[/code]
好了，启动TOMCAT，访问Date.html就可以看到结果：弹出一个对话框，上边显示服务器返回的当前时间值，类型为long
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