URLRequest/URLLoader auto-converting POST request

问题:

When I execute the following code:

var urlRequest:URLRequest = new URLRequest("http://somehost/with/some/path?andsomequerystring=true");
urlRequest.method = 'POST';
var urlLoader:URLLoader = new URLLoader(urlRequest);
urlLoader.addEventListener(Event.COMPLETE,  function(event:Event):void{
    trace('sweet');
});

It turns my explicit POST request to GET due to the presence of the querystring. If I remove the querystring (and serialize as part of the POST body), it successfully makes the corresponding POST request. Is there any way to prevent it from doing that? My server requires that a POST request be made with a querystring.

回答1:

Ah think I found the answer, seems you have to specify a body as well or else it will still send as a GET request from their docs:

Note: If running in Flash Player and the referenced form has no body, Flash Player automatically uses a GET operation, even if the method is set to URLRequestMethod.POST. For this reason, it is recommended to always include a "dummy" body to ensure that the correct method is used.

http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/net/URLRequest.html#url

回答2:

It is because the way you are having your url. If you want to have your variables for POST method you need to use URLVariables.

var urlRequest:URLRequest = new URLRequest(YOUR_REQUEST_URL_HERE);
var variables:URLVariables = new URLVariables();
variables.andsomequerystring = true;

urlRequest.data = variables;
urlRequest.method = 'POST';
var urlLoader:URLLoader = new URLLoader(urlRequest);
urlLoader.addEventListener(Event.COMPLETE,  function(event:Event):void{
    trace('sweet');
});