这是一个简单的演示如何动态地更新网页 文本从一个web服务器。
演示效果如下图：
HTML源代码:
<p> Name: <input type="text" id="demoName"/> <input value="Send" type="button" onclick="update()"/> <br/> Reply: <span id="demoReply"></span> </p>
Javascript来源:
function update() {
var name = dwr.util.getValue("demoName");
Demo.sayHello(name,function(data) {
dwr.util.setValue("demoReply",data);
});
}
Java源代码:
package org.getahead.dwrdemo.simpletext;
public class Demo {
public String sayHello(String name) {
return "Hello," + name;
}
}
web-INf下的配置文件
dwr.xml:
<?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="Demo">
<param name="class" value="org.getahead.dwrdemo.simpletext.Demo"/>
</create>
</allow>
</dwr>
