Flex 与Servlet交互(通过request传递值)

发布时间：2020-12-15 04:39:17 所属栏目：百科来源：网络整理

导读：本文出自：http://wenku.baidu.com/view/c00791cd05087632311212b1.html 本人有改动 MXML代码 ?xml version="1.0" encoding="utf-8"? mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" mx:Script ?![CDATA[ ? import mx.control

本文出自：http://wenku.baidu.com/view/c00791cd05087632311212b1.html

本人有改动

MXML代码

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
<mx:Script>
?<![CDATA[
? import mx.controls.Alert;
? import mx.rpc.events.ResultEvent;
? import mx.rpc.events.FaultEvent;

? import mx.rpc.Fault;

? private function call():void{
?? jspServlet.request.param = "hello";?? //向request中赋上一个名为param的属性，值是hello
?? jspServlet.send();
? }
?
? private function resultHandler(event:ResultEvent):void{
?? txt1.text = event.result as String;
? }
?
? private function faultHandler(event:FaultEvent):void{
?? var fault:Fault = event.fault;
?? var s : String = (fault.faultDetail != null)? fault.faultDetail : fault.faultString;
?? Alert.show(s);
? }
?]]>
</mx:Script>
<mx:HTTPService id="jspServlet" method="POST" useProxy="false" resultFormat="text" url="./jspServlet"
?fault="faultHandler(event)"
?result="resultHandler(event)"
?showBusyCursor="true"/>
<mx:Button x="27" y="28"? useHandCursor="true" buttonMode="true" label="Load" click="call()"/>
<mx:TextArea x="27" y="58" width="450" height="143" id="txt1"/>
</mx:Application>

servlet代码：

package com;

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 JspServlet extends HttpServlet {
?private static final long serialVersionUID = 1L;

?public void doGet(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException{
?
? response.setContentType("text/html");

? //取出Flex页面传过来的param

??? String param = (String)request.getParameter("param");
??? String filename = new String(param.getBytes("ISO8859-1"),"utf-8"); //编码转换

? PrintWriter out = response.getWriter();
? out.print(param);?? //返回Flex
? out.flush();
? out.close();
?}
?
?public void doPost(HttpServletRequest request,IOException{
? this.doGet(request,response);
?}

}

web.xml配置文件：

<servlet>
???? <servlet-name>JspServlet</servlet-name>
???? <servlet-class>com.JspServlet</servlet-class>
</servlet>

<servlet-mapping>
???? <servlet-name>JspServlet</servlet-name>
???? <url-pattern>/jspServlet</url-pattern>
</servlet-mapping>

（编辑：李大同）

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