flex HTTPService应用
flex和spring security搭建的时候遇到一个问题，在发送http请求的时候需要给服务器发送sessionid要不然你只能请求到security没有拦截的login页面
var httpService:HTTPService=new HTTPService;httpService.url=Constants.SERVER + this._url;httpService.method=this._method;httpService.useProxy=false;httpService.requestTimeout = 10;httpService.headers["JSESSIONID"]=Constants.SESSIONID;if(!isLogin){if("GET" == httpService.method)httpService.contentType="application/x-www-form-urlencoded";elsehttpService.contentType="application/json";}else{httpService.contentType="application/x-www-form-urlencoded";}httpService.addEventListener("result", resultHandler);httpService.addEventListener("fault",faultHandler);httpService.send(params);// 上面是发送sessionid// 获取sessionid，请求登录成功后，http请求的根据http协议会返回一个sessionid这里就可以获得到private function resultHandler(event:ResultEvent):void{var jsessionId:String = event.currentTarget.headers["JSESSIONID"];}