flash中打开网页，以及用GET/POST二种方式向服务端发送数据
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//按下按钮，打开网页 |
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btnOpen.addEventListener(MouseEvent.CLICK, |
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function(){ |
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navigateToURL(new URLRequest("http://www.g.cn/search?hl=zh-CN&q=" + encodeURIComponent(txtId.text)),"_blank"); |
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}); |
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//以Get方式发送数据(发送就完事，不会理会服务端是否响应) |
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btnSend.addEventListener(MouseEvent.CLICK, |
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function(){ |
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sendToURL(new URLRequest("/default.aspx?q=" + encodeURIComponent(txtId.text))); |
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}); |
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btnPost.addEventListener(MouseEvent.CLICK,fnPostData); |
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//以Post方式发送数据(同样：发送就完事，不会理会服务端是否响应) |
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function fnPostData(e:MouseEvent) { |
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var _urlReq:URLRequest = new URLRequest(); |
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_urlReq.url = "/default.aspx"; |
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_urlReq.method = URLRequestMethod.POST; |
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var _data:URLVariables = new URLVariables(); |
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_data.q = "菩提树下的杨过"; //即传递 q = 菩提树下的杨过,注：经测试，Flash会自动对传递的数据做encodeURIComponent处理，所以此外不能再加encodeURIComponent，否则就是二次编码了 |
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_urlReq.data = _data; |
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sendToURL(_urlReq); |
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} |
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protected void Page_Load(object sender, EventArgs e) |
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{ |
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string q = Request["q"]; |
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if (!string.IsNullOrEmpty(q)) { |
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string _file = Server.MapPath("~/log.txt"); |
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File.AppendAllText(_file,q + "\t" + Request.HttpMethod + "\t" + DateTime.Now + Environment.NewLine); |
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} |
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} |
如果发送了数据后，还要响应服务端的结果（比如取得服务端的返回值，再继续到Flash中处理），Flash中可这样写:
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var loader:URLLoader = new URLLoader(); |
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configureListeners(loader); |
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var request:URLRequest=new URLRequest("/FlashHander.ashx?q=" + encodeURIComponent("菩提树下的杨过")); |
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try { |
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loader.load(request); |
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} catch (error:Error) { |
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trace("Unable to load requested document."); |
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} |
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//定义各种情况的回调函数 |
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function configureListeners(dispatcher:IEventDispatcher):void { |
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dispatcher.addEventListener(Event.COMPLETE, completeHandler); |
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dispatcher.addEventListener(Event.OPEN, openHandler); |
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dispatcher.addEventListener(ProgressEvent.PROGRESS, progressHandler); |
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dispatcher.addEventListener(SecurityErrorEvent.SECURITY_ERROR, securityErrorHandler); |
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dispatcher.addEventListener(HTTPStatusEvent.HTTP_STATUS, httpStatusHandler); |
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dispatcher.addEventListener(IOErrorEvent.IO_ERROR, ioErrorHandler); |
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} |
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//加载完成时，将触发 |
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function completeHandler(event:Event):void { |
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var loader:URLLoader=URLLoader(event.target); |
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trace("completeHandler: " + loader.data); |
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lblReceive.text = loader.data; //本例中，服务端返回： msg=Hello World&Method=GET&q=菩提树下的杨过 |
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var vars:URLVariables=new URLVariables(loader.data); |
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trace("The Method is " + vars.Method); //服务端返回的字符串中如果有 Method=xxx 这样的字符，则Flash中可以直接用vars.Method进行访问 |
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} |
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//刚开始请求时，将触发 |
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function openHandler(event:Event):void { |
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trace("openHandler: " + event); |
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} |
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//下载进度发生变化时，将触发(可利用这个做加载进度条) |
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function progressHandler(event:ProgressEvent):void { |
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trace("progressHandler loaded:" + event.bytesLoaded + " total: " + event.bytesTotal); |
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} |
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//因安全原因出现错误时，将触发 |
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function securityErrorHandler(event:SecurityErrorEvent):void { |
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trace("securityErrorHandler: " + event); |
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} |
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//http请求状态变化时，将触发 |
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function httpStatusHandler(event:HTTPStatusEvent):void { |
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trace("httpStatusHandler: " + event); |
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} |
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//io错误时，将触发 |
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function ioErrorHandler(event:IOErrorEvent):void { |
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trace("ioErrorHandler: " + event); |
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} |
服务端FlashHander.ashx可以这样处理：
注意：返回的字符串格式为 name1=value1&name2=value2&name3=value3... 如果name和value中本身包含"="与"&"，请注意用其它字符替换掉
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/// <summary> |
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/// Summary description for FlashHander |
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/// </summary> |
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public class FlashHander : IHttpHandler |
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{ |
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public void ProcessRequest(HttpContext context) |
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{ |
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context.Response.ContentType = "text/plain"; |
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context.Response.Write("msg=Hello World&Method=" + context.Request.HttpMethod + "&q=" + context.Request["q"]); |
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} |
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public bool IsReusable |
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{ |
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get |
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{ |
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return false; |
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} |
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} |
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} |
Flex中如何打开网页及Get/Post数据 转,布布扣,bubuko.com
原文地址：http://www.cnblogs.com/regalys168/p/3855962.html
