Flex通过HTTPService与servlet通信

最新推荐文章于 2021-02-21 10:39:01 发布

原创最新推荐文章于 2021-02-21 10:39:01 发布 · 147 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#flex #servlet

flex 专栏收录该内容

22 篇文章

订阅专栏

本文提供了一个Flex应用与Servlet通过HTTPService进行通信的实例代码，包括按钮点击事件触发POST请求，以及Servlet接收到请求参数并返回响应信息。

Flex通过HTTPService与servlet通信

flex代码：

<?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/halo" minWidth="1024" minHeight="768">
<fx:Script>
<!--[CDATA[
import mx.controls.*;
import mx.rpc.events.ResultEvent;
import mx.rpc.http.mxml.HTTPService;
protected function button1_clickHandler(event:MouseEvent):void
{
var addNew:HTTPService = new HTTPService();
addNew.resultFormat = "text" ;
addNew.method = "POST";
addNew.url = "http://localhost:8084/Flex_web/flex";
addNew.addEventListener(ResultEvent.RESULT,result_Handler);
var param:Object = new Object();
param.user = user.text;
param.pwd = pwd.text;
addNew.send(param);
}
public function result_Handler(event:ResultEvent):void
{
var mes:String = event.message.body.toString();
Alert.show("成功！" + mes,"信息");
}
]]-->
</fx:Script>
<fx:Declarations>
</fx:Declarations>
<s:Panel x="200" y="110" width="224" height="157" title="登录系统">
<s:Button x="24" y="92" label="登录" click="button1_clickHandler(event)" width="171" focusEnabled="true"/>
<s:TextInput x="67" y="10" id="user"/>
<s:TextInput x="67" y="49" id="pwd"/>
<s:Label x="20" y="15" text="用户名："/>
<s:Label x="20" y="55" text="密码："/>
</s:Panel>
</s:Application>

<?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/halo" minWidth="1024" minHeight="768"> <fx:Script>  </fx:Script> <fx:Declarations>  </fx:Declarations> <s:Panel x="200" y="110" width="224" height="157" title="登录系统"> <s:Button x="24" y="92" label="登录" click="button1_clickHandler(event)" width="171" focusEnabled="true"/> <s:TextInput x="67" y="10" id="user"/> <s:TextInput x="67" y="49" id="pwd"/> <s:Label x="20" y="15" text="用户名："/> <s:Label x="20" y="55" text="密码："/> </s:Panel> </s:Application>

servlet代码：

package advang;
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 flexServlet extends HttpServlet {
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
String user = request.getParameter("user");
String pwd = request.getParameter("pwd");
user = new String(user.getBytes("ISO8859-1"),"UTF-8");
pwd = new String(pwd.getBytes("ISO8859-1"),"UTF-8");
PrintWriter out = response.getWriter();
try {
out.print("从服务器返回的数据[" + user + "][" + pwd + "]！");
} finally {
out.close();
}
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
@Override
public String getServletInfo() {
return "Short description";
}
}