我自己做的DWR的helloworld实例
都是按部就班来的,访问 http://localhost:8080/项目/dwr 一点儿问题没有
可是 在自己定义的hello.js里面就是不认识那个 dwr.xml里面new 出来的那个类(Hello)
Hello.sayHello(); 不能用
都是按部就班来的,访问 http://localhost:8080/项目/dwr 一点儿问题没有
可是 在自己定义的hello.js里面就是不认识那个 dwr.xml里面new 出来的那个类(Hello)
Hello.sayHello(); 不能用
package com.briup.dwr;public class HelloService {
public String sayHello(String name) {
return "Hello " + name;
}
}
//--------------------------------------
hello.html<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>第一个DWR测试例子</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">
<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/HelloService.js"></script>
<script type="text/javascript" src="hello.js"></script> </head>
<body>
<input id="user" type="text" onblur="hello()"/>
<input type="button" value="测试" onclick="hello()"/>
<div id="result"></div>
</body>
</html>
//-----------------------------------------------
hello.jsfunction hello(){
//var user = document.getElementById("user").value;
var user = DWRUtil.getValue("user");
HelloService.sayHello(user,callback);
}
function callback(msg){
DWRUtil.setValue("result",msg);
}
//------------------------------------------------
web.xml<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<servlet>
<servlet-name>mydwr</servlet-name>
<servlet-class>org.directwebremoting.servlet.DwrServlet</servlet-class>
</servlet><servlet-mapping>
<servlet-name>mydwr</servlet-name>
<url-pattern>/dwr/*</url-pattern>
</servlet-mapping>
</web-app>
//-----------------------------------------------
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 javascript="HelloService" creator="new">
<param name="class" value="com.briup.dwr.HelloService"/>
</create>
</allow>
</dwr>
<create javascript="xxxxxx" creator="spring">
<param name="beanName" value="bean类接口"/>
<include method="dwr检验要使用的方法"/>
</create>
<param name="class" value="com.SystemService" />
</create>
<convert converter="bean" match="com.Desk">
<param name="include" value="deskId,deskName,storeId,persons,realpersons" />
</convert>我想LZ的问题是路径 ../代表的上级目录看看你的
<script type="text/javascript" src="../dwr/engine.js"> </script>
<script type="text/javascript" src="../dwr/util.js"> </script>
这两个DWR工具JS被其它页面应用时的路径是否正确eg:JS文件放在 JS文件夹下你的调用JSP放在webroot下
<script type='text/javascript' src='js/util.js'></script>
<script type='text/javascript' src='js/engine.js'></script>
<script type='text/javascript' src='dwr/interface/service.js'> </script>
关键是你页面导入的那3个.js是否OK?仔细检查下吧
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE dwr PUBLIC "-//GetAhead Limited//DTD Direct Web Remoting 3.0//EN" "http://getahead.org/dwr/dwr30.dtd">
<dwr>
<allow>
<create javascript="MD5Ecnrypt" creator="new">
<param name="class" value="com.jack.dwr.simple.MD5Ecnrypt"></param>
</create>
</allow>
</dwr>
<script type="text/javascript" src="<%=path%>/dwr/engine.js"></script>
<script type="text/javascript" src="<%=path%>/dwr/interface/MD5Ecnrypt.js"></script>
我又一个自己的js文件它是包含到我的一个jsp中的,先把部分代码写出来,然后再给你我的应用得路径,你好对照
这是一个jsp叫left.jsp
<%@ page contentType="text/html;charset=GBK"%>
<html>
<head>
<script type='text/javascript' src='../dwr/interface/Hello.js'></script>
<script type='text/javascript' src='../dwr/engine.js'></script>
<script type='text/javascript' src='../dwr/util.js'></script> 主要是这里你看看需要几个“.”
<%@ include file="/inc/MyJs.js" %>----这个是对应的js文件这是我的MyJs.js中的一个使用DWR的代码
function isTimeEnough()
{
DWREngine.setAsync(false);
Hello.getLimitTime(startTime,additionTime,limitTime,getTimeEnough);
return _data;
}他们的关系是这样的
C:\system\flyApp\myprepare\left.jsp
C:\system\flyApp\inc\MyJs.js