Flex HttpService获取服务端返回数据 xml object text等

使用 HTTPService 类可表示 ActionScript 中的 HTTPService 对象。当调用 HTTPService 对象的 send() 方法时，将发出对指定 URL 的 HTTP 请求，并且返回 HTTP 响应。可以选择向指定 URL 传递参数。如果没有使用基于服务器的代理服务，则只能使用 HTTP GET 或 POST 方法。如果将 useProxy 属性设置为 true 并使用基于服务器的代理服务，则还可以使用 HTTP HEAD、OPTIONS、TRACE 和 DELETE 方法。?

该对象可指定服务器返回数据到httpservice后解析数据的类型,通过设置resultFormat

JAVA ?servlet:

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;

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

import org.apache.commons.lang.StringUtils;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;



public class ConfigService extends HttpServlet implements Servlet {
	private static final long serialVersionUID = 1L;
	private static final String defaultCharSet = "utf-8";
	private static final String defaultContentType = "xml";

	/**
	 * Constructor of the object.
	 */
	public ConfigService() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 * 
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request
	 *            the request send by the client to the server
	 * @param response
	 *            the response send by the server to the client
	 * @throws ServletException
	 *             if an error occurred
	 * @throws IOException
	 *             if an error occurred
	 */
	public void doGet(HttpServletRequest request,HttpServletResponse response)
			throws ServletException,IOException {
		doPost(request,response);
	}

	/**
	 * The doPost method of the servlet. <br>
	 * 
	 * This method is called when a form has its tag value method equals to
	 * post.
	 * 
	 * @param request
	 *            the request send by the client to the server
	 * @param response
	 *            the response send by the server to the client
	 * @throws ServletException
	 *             if an error occurred
	 * @throws IOException
	 *             if an error occurred
	 */
	public void doPost(HttpServletRequest request,IOException {
		String contentType = RequestUtils.getParameter(request,"contentType");
		if (StringUtils.isBlank(contentType)) {
			contentType = defaultContentType;
		}

		response.setContentType("text/" + contentType + ";charset="
				+ defaultCharSet);

		response.setCharacterEncoding(defaultCharSet);
		PrintWriter out = response.getWriter();
		String configName = RequestUtils.getParameter(request,"configName");
		if (StringUtils.isNotBlank(configName)) {
			try {
				Resource resource = new ClassPathResource("config/"
						+ configName + "." + contentType);
				BufferedReader bufferedReader = new BufferedReader(
						new InputStreamReader(resource.getInputStream(),defaultCharSet),1024 * 512);

				String line = null;
				while ((line = bufferedReader.readLine()) != null) {
					out.println(line);
				}
			} catch (Exception e) {
				e.printStackTrace();
			}

		}

		out.flush();
		out.close();
	}

	/**
	 * Initialization of the servlet. <br>
	 * 
	 * @throws ServletException
	 *             if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}

<?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"
			   creationComplete="application1_creationCompleteHandler(event)">
	<fx:Declarations>
		<s:HTTPService id="httpService" result="httpService_resultHandler(event)" resultFormat="xml"
					   url="http://127.0.0.1:8080/ws/servlet">
		</s:HTTPService>
	</fx:Declarations>
	<fx:Script>
		<![CDATA[
			import mx.events.FlexEvent;
			import mx.rpc.events.ResultEvent;
			
			protected function application1_creationCompleteHandler(event:FlexEvent):void
			{
				httpService.send();
			}
			
			protected function httpService_resultHandler(event:ResultEvent):void
			{

				var xmlResult :XML = XML(event.result);
				//xml处理
			}
			
			]]>
	</fx:Script>

</s:Application>