如何在 Flex 中读取 Django HTTPResponse？

发布于 2024-07-11 19:20:18 字数 227 浏览 7 评论 0原文

我是一个十足的 Flex 菜鸟，所以如果我遗漏了一些明显的东西，我提前道歉。

我在 Flex 中编写了一个相当简单的文件上传器，它通过 URLRequest 调用我的 Django 后端（FileReference 对象处理上传）。我的上传按预期进行，并且我让 Django 返回一个 HTTPResponse 对象。因此，我想读取 HTTPResponse 对象的内容。

有什么想法吗？

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双手揣兜 2024-07-18 19:20:18

进行类似于 then 的操作，

<mx:HTTPService id="myHTTPRequest" 
    url="{whatever your url request is}"
    result="resultHandler(event)" 
    fault="faultHandler(event)"
    showBusyCursor="true" 
    resultFormat="object">

在 resultHandler 中

private function resultHandler (event : ResultEvent) : void {
    var obj : Object = event.result;
    //do something with returned object

}

在 resultHandler 处进行调试，以查看返回的确切内容，确保它是您认为应该返回的内容。

something along the lines of

<mx:HTTPService id="myHTTPRequest" 
    url="{whatever your url request is}"
    result="resultHandler(event)" 
    fault="faultHandler(event)"
    showBusyCursor="true" 
    resultFormat="object">

then inside the resultHandler something like this

private function resultHandler (event : ResultEvent) : void {
    var obj : Object = event.result;
    //do something with returned object

}

Debug at the point of the resultHandler to see exaclty whats being returned, make sure its what you think should be getting returned.

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小瓶盖 2024-07-18 19:20:18

当它到达客户端时，它只是一个普通的 HTTP 响应，因此请像对待任何其他响应一样对待它

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烂柯人 2024-07-18 19:20:18

我也是 Flex 新手，在上传到 Java Rest 后端时遇到了同样的问题，我使用 FileReference 上的 DateEvent 解决了这个问题。要获取响应数据，请使用以下内容：

var fileRef:FileReference = new FileReference();
fileRef.addEventListener(DataEvent.UPLOAD_COMPLETE_DATA, responseHandler);
var request:URLRequest = new URLRequest("yourUrl");
fileRef.upload(request, "fileData"); 

private function responseHandler(event:DataEvent):void {
    var response:XML = new XML(event.data); 
//Note the DataEvent: this is the event that holds the response. 
//I sent back data as xml
}

您的响应应始终是成功的 HTTP 状态代码 (200)，如果您的后端发送状态 500 代码，它将不会触发 DateEvent。仍然可以使用 HTTPStatusEvent 捕获服务器错误，但您无法访问响应。

I am also new to flex and I ran in the same problem when doing an upload to a Java Rest backend, I solved it using the DateEvent on the FileReference. To get the response data use something like this.:

var fileRef:FileReference = new FileReference();
fileRef.addEventListener(DataEvent.UPLOAD_COMPLETE_DATA, responseHandler);
var request:URLRequest = new URLRequest("yourUrl");
fileRef.upload(request, "fileData"); 

private function responseHandler(event:DataEvent):void {
    var response:XML = new XML(event.data); 
//Note the DataEvent: this is the event that holds the response. 
//I sent back data as xml
}

Your response should always be a successful HTTP status code (200), if your backend sends status 500 codes it will not trigger the DateEvent. Server errors can still be caught with a HTTPStatusEvent, but then you don't have access to the response.

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む无字情书 2024-07-18 19:20:18

您可以在 onComplete 事件处理程序中像这样访问响应：

private function saveCompleteHandler(event:Event):void {
    var loader:URLLoader = event.currentTarget as URLLoader;
    trace("saveCompleteHandler - event returned:" + loader.data as String);
}

我们这样做是为了从 java web 服务获取 json。

您只需要首先使用 URLLoader 来加载 URLRequest：

var loader:URLLoader = new URLLoader();
loader.addEventListener(HTTPStatusEvent.HTTP_STATUS, statusHandler, 10000);
loader.addEventListener(IOErrorEvent.IO_ERROR, saveErrorHandler, 10000);
loader.addEventListener(Event.COMPLETE, saveCompleteHandler, 10000);

var request:URLRequest = new URLRequest("http:/whereverer");
request.method = URLRequestMethod.GET;
loader.load(request);

you can access the response like so in your onComplete event handler:

private function saveCompleteHandler(event:Event):void {
    var loader:URLLoader = event.currentTarget as URLLoader;
    trace("saveCompleteHandler - event returned:" + loader.data as String);
}

we do this this to get json fron a java web service.

you just need to use a URLLoader to load the URLRequest in the first place:

var loader:URLLoader = new URLLoader();
loader.addEventListener(HTTPStatusEvent.HTTP_STATUS, statusHandler, 10000);
loader.addEventListener(IOErrorEvent.IO_ERROR, saveErrorHandler, 10000);
loader.addEventListener(Event.COMPLETE, saveCompleteHandler, 10000);

var request:URLRequest = new URLRequest("http:/whereverer");
request.method = URLRequestMethod.GET;
loader.load(request);

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