使用AFNetworking失败上传一个.zip文件，以REST服务器(Upload a .zip

从AFNetworking文档，我得到了下面的代码，同时试图上传的REST服务器，与其他客户端正常工作，但我的执行它与内部服务器错误崩溃的文件。

代码如下：

- (BOOL)uploadFile:(NSString *)path apiKey:(NSString *)apiKey
{
    NSData *symbolsData = [NSData dataWithContentsOfFile:path];

    if (!symbolsData) {
        NSLog(@"Symbols file at %@ does not exist.", path);
        return NO;
    }

    if ([symbolsData length] > 33554432) {
        NSLog(@"Symbols file at %@ is too large to upload.", path);
        return NO;
    }

    NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:[NSString stringWithFormat:@"%@/upload/thefile", BaseURL] parameters:nil constructingBodyWithBlock:
        ^(id<AFMultipartFormData> formData)
            {
            [formData appendPartWithFileData:symbolsData name:@"file" fileName:[path lastPathComponent] mimeType:@"application/zip"];
            }
        error:nil];
    [request setValue:apiKey forHTTPHeaderField:@"X-theapikey"];

    AFURLSessionManager* manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];

    NSURLSessionUploadTask* uploadTask = [manager uploadTaskWithStreamedRequest:request progress:nil completionHandler:
        ^(NSURLResponse *response, id responseObject, NSError *error)
            {
            if (!error)
                {
                NSLog(@"Successfully uploade file: %@\r\nwith Response: %@", [path lastPathComponent], (NSString*)responseObject);
                }
            else
                {
                NSLog(@"There was an error while uploading the file: %@", [error description]);
                }
            }];

    [uploadTask resume];

    return YES;
}

错误：

There was an error while uploading file: Error Domain=NSURLErrorDomain Code=-1001 "The request timed out." UserInfo=0x6000000e8700 {NSUnderlyingError=0x60000005c0e0 "The request timed out.", NSErrorFailingURLStringKey=http://IP_ADDRESS:3000/upload/thefile, NSErrorFailingURLKey=http://IP_ADDRESS:3000/upload/thefile, NSLocalizedDescription=The request timed out.}

在互联网searchnig此之后，我已经看到了很多的实现，MIME类型更改为应用程序/八位字节流和其他东西，但没有奏效。

还添加了AFNetworkActivityLogger并注册到NSNotificationCenter检查要求：

Request: <NSMutableURLRequest: 0x600000014680> { URL: http://IP_ADDRESS:3000/upload/thefile }
2014-05-28 03:03:16.112 MyMacApp[5092:303] POST 'http://IP_ADDRESS:3000/upload/thefile': {
    "Accept-Language" = "en;q=1, ja;q=0.9, fr;q=0.8, de;q=0.7, es;q=0.6, it;q=0.5";
    "Content-Length" = 817739;
    "Content-Type" = "multipart/form-data; boundary=Boundary+E25BB25240379DA8";
    "User-Agent" = "MyMacApp/1.1 (Mac OS X Version 10.9.3 (Build 13D65))";
    "X-thapikey" = 9e301234;
} (null)

我能看到的Content-Type看起来不错，有一个内容长度。

编辑：抛出的服务器异常：

java.lang.NullPointerException
  at org.apache.commons.fileupload.MultipartStream$ItemInputStream.makeAvailable(MultipartStream.java:997)
  at org.apache.commons.fileupload.MultipartStream$ItemInputStream.read(MultipartStream.java:901)
  at java.io.InputStream.read(InputStream.java:101)
  at org.apache.commons.fileupload.util.Streams.copy(Streams.java:101)
  at org.apache.commons.fileupload.util.Streams.copy(Streams.java:70)
  at org.apache.commons.fileupload.MultipartStream.readBodyData(MultipartStream.java:589)
  at org.apache.commons.fileupload.MultipartStream.discardBodyData(MultipartStream.java:613)
  at org.apache.commons.fileupload.MultipartStream.skipPreamble(MultipartStream.java:630)
  at org.apache.commons.fileupload.FileUploadBase$FileItemIteratorImpl.findNextItem(FileUploadBase.java:1018)
  at org.apache.commons.fileupload.FileUploadBase$FileItemIteratorImpl.<init>(FileUploadBase.java:998)
  at org.apache.commons.fileupload.FileUploadBase.getItemIterator(FileUploadBase.java:310)
  at ring.middleware.multipart_params$file_item_seq.invoke(multipart_params.clj:39)
  at ring.middleware.multipart_params$parse_multipart_params.invoke(multipart_params.clj:55)
  at ring.middleware.multipart_params$multipart_params_request.doInvoke(multipart_params.clj:81)
  at clojure.lang.RestFn.invoke(RestFn.java:423)
  at ring.middleware.multipart_params$wrap_multipart_params$fn__853.invoke(multipart_params.clj:107)
  at ring.middleware.flash$wrap_flash$fn__1860.invoke(flash.clj:31)
  at ring.middleware.session$wrap_session$fn__1847.invoke(session.clj:85)
  at ring.middleware.json$wrap_json_body$fn__623.invoke(json.clj:21)
  at ring.middleware.json$wrap_json_response$fn__634.invoke(json.clj:42)
  at clojure.lang.Var.invoke(Var.java:415)
  at org.httpkit.server.HttpHandler.run(RingHandler.java:91)
  at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
  at java.util.concurrent.FutureTask.run(FutureTask.java:262)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
  at java.lang.Thread.run(Thread.java:744)

任何想法如何调试，并找出为什么我的请求失败的原因？

服务器接受的文件，它与其他客户端，邮递员，可可REST客户端进行测试。

谢谢。

发现下探AFNetworking并使用苹果的NSURLRequest，NSURLConnection的教学班，在计算器一些搜索答案。

我应该指出，这可能是一个服务器的缺乏支持AFNetworking请求或要求不能适用所有的服务器工作。

代码的工作对我来说：

- (NSMutableURLRequest *)buildRequest:(NSData *)paramData fileName:(NSString *)name
    {
    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
    [request setURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@/upload/thefile", BaseURL]]];
    [request setHTTPMethod:@"POST"];

    NSString *boundary = @"0xKhTmLbOuNdArY";
    NSString *endBoundary = [NSString stringWithFormat:@"\r\n--%@--", boundary];

    NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@", boundary];
    [request addValue:contentType forHTTPHeaderField: @"Content-Type"];

    NSMutableData *tempPostData = [NSMutableData data]; 
    [tempPostData appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];

    // Sample file to send as data
    [tempPostData appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"file\"; filename=\"%@\"\r\n", name] dataUsingEncoding:NSUTF8StringEncoding]];
    [tempPostData appendData:[@"Content-Type: application/octet-stream\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
    [tempPostData appendData:paramData];
    [tempPostData appendData:[endBoundary dataUsingEncoding:NSUTF8StringEncoding]];
    [request setHTTPBody:tempPostData];

    return request;
    }

- (BOOL) uploadSymbols:(NSString*)path apiKey:(NSString*)apiKey
    {
    NSData *symbolsData = [NSData dataWithContentsOfFile:path];

    if (!symbolsData) {
        NSLog(@"Symbols file at %@ does not exist.", path);
        return NO;
    }

    if ([symbolsData length] > 33554432) {
        NSLog(@"Symbols file at %@ is too large to upload.", path);
        return NO;
    }

    NSMutableURLRequest* request = [self buildRequest:symbolsData fileName:[path lastPathComponent]];
    [request setValue:apiKey forHTTPHeaderField:@"X-theapikey"];
    [NSURLConnection sendAsynchronousRequest:request queue:self.queue completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {
       NSLog(@"End.");
    }];
    return true;
    }