用自定义标题发送POST请求 [英] Send POST request with custom headers using flash

问题描述

我试图用自定义标题发送POST请求使用Flash，但我只能让它发送请求作为GET，即使当我使用 request.method = URLRequestMethod.POST; $ b $ p
$ b $ p $ {code $ package $ {

$ b import flash.display.Sprite;
导入flash.events。*;
import flash.net。*;

public class URLRequestExample extends Sprite {
private var loader：URLLoader;

public function URLRequestExample（）{
loader = new URLLoader（）;
configureListeners（loader）;
var url：String =http://example.com/;
var header：Array = [
new URLRequestHeader（X-CUSTOM-HEADER，X-VALUE），
new URLRequestHeader（Accept，application / json）
];
var requestVars：URLVariables = new URLVariables（）;
requestVars.test =test;
request.data = requestVars; //如果这条线和它下面的那条线被注释掉了，那么这个请求就是GET
request.requestHeaders = headers; // ^没有请求标头
var request：URLRequest = new URLRequest（）;
request.method = URLRequestMethod.POST; //使用URLRequestMethod.POST，但请求仍然以GET
request.url = url的形式发送。
尝试{
loader.load（request）;
} catch（error：Error）{
trace（Unable to load requested document。）;



private function configureListeners（dispatcher：IEventDispatcher）：void {
dispatcher.addEventListener（Event.COMPLETE，completeHandler）;
dispatcher.addEventListener（Event.OPEN，openHandler）;
dispatcher.addEventListener（ProgressEvent.PROGRESS，progressHandler）;
dispatcher.addEventListener（SecurityErrorEvent.SECURITY_ERROR，securityErrorHandler）;
dispatcher.addEventListener（HTTPStatusEvent.HTTP_STATUS，httpStatusHandler）;
dispatcher.addEventListener（IOErrorEvent.IO_ERROR，ioErrorHandler）;


private function completeHandler（event：Event）：void {
var loader：URLLoader = URLLoader（event.target）;
trace（completeHandler：+ loader.data）;


private function openHandler（event：Event）：void {
trace（openHandler：+ event）;

$ b private function progressHandler（event：ProgressEvent）：void {
trace（progressHandler loaded：+ event.bytesLoaded +total：+ event.bytesTotal）;


private function securityErrorHandler（event：SecurityErrorEvent）：void {
trace（securityErrorHandler：+ event）;


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


private function ioErrorHandler（event：IOErrorEvent）：void {
trace（ioErrorHandler：+ event）;





$ p $并且在我的crossdomain.xml我有：

 <？xml version =1.0？> 
<！DOCTYPE跨域策略系统http://www.adobe.com/xml/dtds/cross-domain-policy.dtd\"> 
<跨网域政策> 
  < allow-http-request-headers-from domain =*headers =*secure =false/> 
< / cross-domain-policy> 
  

解决方案

强大的>有效的附加的POST数据。只要我至少向URLVariables对象添加了一个有效的键值对，我的Chrome开发工具就会将请求方法报告为POST： http://wonderfl.net/c/Ia2z

I am trying to send POST request with custom headers using flash, but I can only get it to send the request as GET even when I use request.method = URLRequestMethod.POST;

Here is my code:

package {
import flash.display.Sprite;
import flash.events.*;
import flash.net.*;

public class URLRequestExample extends Sprite {
    private var loader:URLLoader;

    public function URLRequestExample() {
        loader = new URLLoader();
        configureListeners(loader);
        var url:String = "http://example.com/";
        var headers:Array = [
            new URLRequestHeader("X-CUSTOM-HEADER", "X-VALUE"),
            new URLRequestHeader("Accept", "application/json")
        ];
        var requestVars:URLVariables = new URLVariables();
        requestVars.test = "test";
        request.data = requestVars; // If this line and the one under it are commented the request goes as GET
        request.requestHeaders = headers; // ^with no request headers
        var request:URLRequest = new URLRequest();
        request.method = URLRequestMethod.POST; // Using URLRequestMethod.POST but the request is still sent as GET
        request.url = url;
        try {
            loader.load(request);
        } catch (error:Error) {
            trace("Unable to load requested document.");
        }
    }

    private function configureListeners(dispatcher:IEventDispatcher):void {
        dispatcher.addEventListener(Event.COMPLETE, completeHandler);
        dispatcher.addEventListener(Event.OPEN, openHandler);
        dispatcher.addEventListener(ProgressEvent.PROGRESS, progressHandler);
        dispatcher.addEventListener(SecurityErrorEvent.SECURITY_ERROR, securityErrorHandler);
        dispatcher.addEventListener(HTTPStatusEvent.HTTP_STATUS, httpStatusHandler);
        dispatcher.addEventListener(IOErrorEvent.IO_ERROR, ioErrorHandler);
    }

    private function completeHandler(event:Event):void {
        var loader:URLLoader = URLLoader(event.target);
        trace("completeHandler: " + loader.data);
    }

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

    private function progressHandler(event:ProgressEvent):void {
        trace("progressHandler loaded:" + event.bytesLoaded + " total: " + event.bytesTotal);
    }

    private function securityErrorHandler(event:SecurityErrorEvent):void {
        trace("securityErrorHandler: " + event);
    }

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

    private function ioErrorHandler(event:IOErrorEvent):void {
        trace("ioErrorHandler: " + event);
    }
}
}

And in my crossdomain.xml file I have:

<?xml version="1.0"?>
<!DOCTYPE cross-domain-policy SYSTEM "http://www.adobe.com/xml/dtds/cross-domain-policy.dtd">
<cross-domain-policy>
    <site-control permitted-cross-domain-policies="all"/>
    <allow-access-from domain="*" secure="false"/>
    <allow-http-request-headers-from domain="*" headers="*" secure="false"/>
</cross-domain-policy>

解决方案

It seems it handles request as GET if there's no valid POST data attached. As soon as I added at least one valid key:value pair to the URLVariables object my Chrome dev tool reported the request method as POST: http://wonderfl.net/c/Ia2z

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