Question

我在Flash客户端使用URLRequest从服务中获取一些信息，服务会检查请求url中的参数，如果参数无效，服务器可能会返回403内含一些http内容的内容，我需要分析内容，内容是json字符串：

{"code":3, "msg":"invalid channel"}

不幸的是，有时URLRequest无法从URLStream读取内容，stream.bytesAvailable为0，似乎URLStream读取了空数据。 URLRequest中是否有任何错误？或者只是因为我以错误的方式使用它？

以下是代码：

    public function test() {
        stream = new URLStream();
        request = new URLRequest(url);
        configureListeners(stream);
        var timer:Timer = new Timer(2000, 10);
        timer.addEventListener(TimerEvent.TIMER, onTimer);
        timer.start();
    }

    private function onTimer(e:TimerEvent):void {
        request.url = url + "&timestamp=" + getTimer();
        trace("try to load: " + request.url);
        stream.load(request);
    }

    private function configureListeners(dispatcher:EventDispatcher):void {
        dispatcher.addEventListener(Event.COMPLETE, completeHandler);
        dispatcher.addEventListener(HTTPStatusEvent.HTTP_STATUS, httpStatusHandler);
        dispatcher.addEventListener(IOErrorEvent.IO_ERROR, ioErrorHandler);
    }

    private function completeHandler(event:Event):void {
        trace("completeHandler: " + event);
        parseHeader();
    }

    private function httpStatusHandler(event:HTTPStatusEvent):void {
        trace("httpStatusHandler: " + event);
    }

    private function ioErrorHandler(event:IOErrorEvent):void {
        trace("ioErrorHandler: " + event.toString());
        trace(stream.bytesAvailable + ", " + event.target.bytesAvailable + ", " + event.target.length);
    }

这里是日志： enter image description here

当服务器返回403时，AS3中的URLRequest无法读取正确的内容

0 个答案: