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Flex与Servlet之间数据的交互

2014-10-14 16:48 363 查看

总结一下Flex与Servlet之间数据的交互：

代码1—Flex代码：

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" creationComplete="sendRequest();">
<mx:Script>
<![CDATA[
import mx.controls.Alert;

public function sendRequest():void{
var request:URLRequest=new URLRequest("http://localhost:8080/flexAndServlet/TestServlet");//首先发送servlet请求：flexAndServlet为Java Web工程名、TestServlet为处理Flex发送过来的数据的Servlet
request.method=URLRequestMethod.POST;
request.data = new URLVariables("name=高焕杰"); //name为传向Servlet的参数名
var loader:URLLoader=new URLLoader();
loader.load(request);
loader.addEventListener(Event.COMPLETE, onLoaderComplete);
}

private function onLoaderComplete(event:Event):void{
var responseResult:String = ((event.target) as URLLoader).data;//servlet端传回来的数据
Alert.show(responseResult, "");
}
]]>
</mx:Script>
</mx:Application>

代码2—Servlet代码：

package com.ghj.packageofservlet;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class TestServlet extends HttpServlet {

private static final long serialVersionUID = -2928176190622974743L;

public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {
doPost(request, response);
}

public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {
request.setCharacterEncoding("UTF-8");
response.setContentType("text/pain;charset=UTF-8");
PrintWriter out = response.getWriter();
try {
String name = request.getParameter("name");//获取Flex发送回来的名为name的参数对应的参数值
System.out.print("name：" + name);
out.println("Servlet获取的值为" + name);
} finally {
out.close();
}
}
}

代码3—web.xml代码：

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <servlet>
<servlet-name>TestServlet</servlet-name>
<servlet-class>com.ghj.packageofservlet.TestServlet</servlet-class>
</servlet>

<servlet-mapping>
<servlet-name>TestServlet</servlet-name>
<url-pattern>/TestServlet</url-pattern>
</servlet-mapping>

<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>

代码4—jsp代码：

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%
String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + request.getContextPath() + "/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Flex与Servlet的交互</title>
</head>

<body>
<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
id="tempPictureUpload" width="100%" height="100%"
codebase="http://fpdownload.macromedia.com/get/flashplayer/current/swflash.cab">
<param name="movie"
value="<%=basePath%>swf/flexAndServlet.swf" />
<param name="quality" value="high" />
<param name="bgcolor" value="#ffffff" />
<param name="allowScriptAccess" value="sameDomain" />

<embed name="tempPictureUpload"
width="100%" height="100%"
src="<%=basePath %>swf/flexAndServlet.swf"
quality="high" bgcolor="#869ca7"
align="middle" play="true" loop="false"
allowScriptAccess="sameDomain" type="application/x-shockwave-flash"
pluginspage="http://www.adobe.com/go/getflashplayer">
</embed>
</object>
</body>
</html> 【0分下载示例】

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