Flex通过HTTPService与servlet通信

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>
        <!-- Place non-visual elements (e.g., services, value objects) here -->
    </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>
		<!--[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>
		<!-- Place non-visual elements (e.g., services, value objects) here -->
	</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";
    }

}