CODEWITHSUNDEEP
apache-flexactionscript-3flex4
fumeng
fumeng

Reputation: 1820

Syntax for calling HTTP Servlet from Flex

Just trying to figure out the proper syntax for making a POST to an HTTP Servlet from Flex. A Java developer gave me this URL to call:

http://myUrl:myPort/myProject/test/getFile/?fileId=1225

I want to build the the HTTPService url dynamically, meaning I pass the '1225' at the end.

My question is regarding how to translate that to MXML. Does that mean my HTTPService object looks like this?

<mx:HTTPService
    id="rawFileServlet"
    url="http://myUrl:myPort/myProject/test/getFile/?fileId="
    method="POST"
    showBusyCursor="true">

    <mx:request xmlns="">
        <fileId>

        </fileId>
    </mx:request>

</mx:HTTPService>

And my call is this:

params["fileId"] = 1225; httpServ.send(params);

Is that right? Something seems strange about it.

Here's updated code that works but doesn't allow me to trap remote errors nicely:

var url:String = model.fileUploadServletUrl;

        var request:URLRequest = new URLRequest();
        request.method = 'POST';
        request.url = url;

        var uvar:URLVariables = new URLVariables();
        uvar.fileId = evt.fileId;

        request.data = uvar;

        try{
            navigateToURL( request );
        }
        catch( e:Error ){
            ErrorManager.processRemoteError( 'Download Excel failed' );
        }

Upvotes: 0

Views: 3682

Answers (1)

Constantiner
Constantiner

Reputation: 14221

If you form your parameters in ActionScript in send() method use the following:

<mx:HTTPService
    id="rawFileServlet"
    url="http://myUrl:myPort/myProject/test/getFile/"
    method="POST"
    showBusyCursor="true" />

And you can use simple object for params:

var params:Object = {fileId: 1225};
rawFileServlet.send(params);

Upvotes: 3

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