DWR的基本配置例子:
1、 拷贝dwr.jar文件
2、 修改web.xml文件:添加 dwr servlet 配置:
<servlet>
<servlet-name>dwr-invokerservlet-name>
<servlet-class>org.directwebremoting.servlet.DwrServletservlet-class>
<init-param>
<param-name>debugparam-name>
<param-value>trueparam-value>
init-param>
servlet>
<servlet-mapping>
<servlet-name>dwr-invokerservlet-name>
<url-pattern>/dwr/*url-pattern>
servlet-mapping>
3、 创建JAVA文件
package com.myoa.oa.dwr;
public class DWRTest {
public String hello(){
return "世界,你好!";
}
}
4、 在WEB-INF下面添加dwr.xml配置文件
<dwr>
<allow>
<create creator="spring" javascript="test">
<param name="class" value="com.myoa.oa.dwr.DWRTest"/>
create>
allow>
dwr>
5、 创建JSP页面
Dwrtext.jsp代码:
<%@ page language="java" contentType="text/html; charset=GB18030"
pageEncoding="GB18030"%>
DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GB18030">
<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/test.js'>script>
<title>dwrtesttitle>
<script type="text/javascript">
function test1(){
test.hello( helloreturn );
}
function helloreturn(value){
alert(value);
}
script>
head>
<body>
<input type="button" value="测试" onclick="test1()">
body>
html>
在这里需要注意的是
<script type='text/javascript' src='dwr/interface/test.js'>script>
里面的test.js的“test”是必须与dwr.xml配置文件里面的
<create creator="spring" javascript="test">的javascript的值相同。