DWR

  • 项目中碰见了DWR，就简单的整理了一下。
  • eclipse新建web项目
  • 导入jar  dwr.jar
  • 在WEB-INF下新建文件，取名dwr.xml
  • <?xml version="1.0" encoding="UTF-8"?>
<dwr>
    <allow>
        <create creator="new" javascript="Test">
            <param name="class" value="com.dwr.test.Test"/>
        </create>
    </allow>
</dwr>
  • 修改web.xml，加入内容
    <servlet>
    <servlet-name>dwr-test</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>
    <init-param>
        <param-name>scriptCompressed</param-name>
        <param-value>false</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>dwr-test</servlet-name>
    <url-pattern>/dwr/*</url-pattern>
</servlet-mapping>
  • 在src下新建package并加入如下的java类 
    package com.dwr.test;

public class Test {

    public String Hello(String s){
        return "Hello "+s;
    }
}
  • 在Webcontent或者WebRoot目录下新建index.jsp 
    <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!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=UTF-8">
<title>主页</title>
</head>
<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>
<body>
<input type="button" value="测试" onclick="Test1()"/>
<input type="text" id="in"/><br>
返回值：<input type="text" id = "serverResponse"/>
</body>
<script type="text/javascript">
function Test1(){    
    var _data = document.getElementById("in").value;
    Test.Hello(_data,callback);
}
function callback(data){
    document.getElementById("serverResponse").value = data;
}
</script>
</html>
  • 运行项目结果如下：
  • result
posted @ 2015-11-06 15:24  老毛头  阅读(171)  评论(0)    收藏  举报