flex4中httpservice与服务器端交互的值传递

来源：互联网发布：mp3音乐下载软件编辑：程序博客网时间：2024/06/08 15:10

查看原文：http://www.ibloger.net/article/346.html

<!--定义HttpService发送请求-->        <s:HTTPService id="service"                        url="http://localhost:8080/testhttpservice/testHttpServiceServlet"                        useProxy="false"                        fault="service_faultHandler(event)"                        result="service_resultHandler(event)">            <!--第一种传值方式-->                        <s:request >                <!--参数名称作标签,中间填充参数值-->                <username>{txtusername.text}</username>                <password>{txtpassword.text}</password>            </s:request>                    </s:HTTPService>

Servlet在web.xml中定义

 <servlet>     <servlet-name>UserServlet</servlet-name>     <servlet-class>cn.servlet.UserServlet</servlet-class>    </servlet>    <servlet-mapping>   <servlet-name>UserServlet</servlet-name>     <url-pattern>/UserServlet</url-pattern>   </servlet-mapping>

Servlet内容

package cn.servlet;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 UserServlet extends HttpServlet {public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {System.out.println("***********  进入Services方法中 ***********");                request.setCharacterEncoding("utf-8");                  response.setCharacterEncoding("utf-8");                          String userName=request.getParameter("username");                  String passWord=request.getParameter("password");  PrintWriter out = response.getWriter();out.println("用户名："+ userName +"，密码："+ passWord);out.flush();out.close();}public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {doGet(request, response);}}

Flex应用程序

<?xml version="1.0" encoding="utf-8"?><s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"    xmlns:s="library://ns.adobe.com/flex/spark"    xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600"><fx:Script><![CDATA[import mx.controls.Alert;import mx.rpc.events.FaultEvent;import mx.rpc.events.ResultEvent;protected function http_result(event:ResultEvent):void {Alert.show("成功了:"+event.result as String,"提示"); }protected function http_fault(event:FaultEvent):void {trace(event.message);Alert.show("失败了"); }protected function btn_click(event:MouseEvent):void {//第一种传值方式                 service.send(); //第二种传值方式 通过send()方法传值 send方法中传递参数  //定义一object对象 //var obj:Object=new Object(); ////分别将文本框username，password的值传递到后台 ,object对象.参数名=值   传值操作 //obj.username = txt_name.text; //obj.password = txt_pwd.text; //service.send(obj); }]]></fx:Script><fx:Declarations><!--定义HttpService发送请求-->  <s:HTTPService id="service" url="UserServlet" method="POST" result="http_result(event)" fault="http_fault(event)"><!--第一种传值方式-->  <s:request>  <!--参数名称作标签,中间填充参数值-->  <username>{txt_name.text}</username>  <password>{txt_pwd.text}</password>  </s:request>  </s:HTTPService></fx:Declarations><s:TextInput x="332" y="196" id="txt_name"/>  <s:TextInput x="332" y="227" id="txt_pwd" displayAsPassword="true"/>  <s:Label x="286" y="201" text="用户名:" />  <s:Label x="298" y="233" text="密码:" />  <s:Button x="359" y="257" label="发送" click="btn_click(event)"/>  </s:Application>

0 0