DWR Getting Started

時間 2019-11-10

標籤 dwr getting started 欄目 Ajax 简体版

原文原文鏈接

DWRjavascript

Getting Started with DWRhtml

入門一下DWRjava

第一步仍是按照官網的Getting Started...只要5步就跑起來了web

兩個jar包，web.xml中配置，dwr.xml中配置app

Demo.javajsp

<!-- lang: java -->
package zoey.bean;

public class Demo {
    public String sayHello(String name) {
        return "Hello," + name;
    }
}

web.xml學習

<!-- lang: xml -->
<servlet>
<display-name>DWR Servlet</display-name>
<servlet-name>dwr-invoker</servlet-name>
<servlet-class>org.directwebremoting.servlet.DwrServlet</servlet-class>
<init-param>
	<param-name>debug</param-name>
	<param-value>true</param-value>
</init-param>
</servlet>

<servlet-mapping>
<servlet-name>dwr-invoker</servlet-name>
<url-pattern>/dwr/*</url-pattern>
</servlet-mapping>

dwr.xmlui

<!-- lang: xml -->
<?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 creator="new" javascript="demo">
		<param name="class" value="zoey.bean.Demo" />
	</create>
</allow>
</dwr>

index.jspurl

<!-- lang: html -->
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="ISO-8859-1"%>
<!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>Hello DWR</title>
<script type='text/javascript' src='/dwrDemo/dwr/engine.js'></script>
<script type='text/javascript' src='/dwrDemo/dwr/interface/demo.js'></script>
<script type='text/javascript' src='/dwrDemo/dwr/util.js'></script>
<script type='text/javascript'>
  function update() {
	  var name = dwr.util.getValue("demoName");
	  demo.sayHello(name, function (data) {
		  dwr.util.setValue("demoReply", data);
	  });
  }
</script>
</head>
<body>
Name：<input type="text" id="demoName">
<input type="button" value="Send" onclick="update()" /><br/>
Reply: <span id="demoReply"></span>
</body>
</html>

官方還給出了許多事例程序，接下去根據須要學習了spa

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