使用AFNetWorking 上传字符串，请求失败，Request failed: 请求太大

我要把图片换成nsdata，然后再用base64encoding，把encoding后生成的字符串上传到
服务器，就出这个问题，
报错信息：err:Error Domain=com.alamofire.error.serialization.response Code=-1011 "Request failed: 请求太大 (413)"
我同事用的ASIHTTPRequest库就没问题，请问如何解决？
代码：

 UIImage *img = [self createThumbnailWithSourceImge:sourceImg andNewSize:sz];

       data  = UIImageJPEGRepresentation(img, 0.01);
        NSString *encodedSTR  = [data base64Encoding];
                NSString *currentUrl = @"/app/b/test";
        NSString *urlStr = [NSString stringWithFormat:@"%@%@?picStr=%@",BASEURL,currentUrl,encodedSTR];
        NSURL *url = [NSURL URLWithString:urlStr];
        NSURLRequest *request = [NSURLRequest requestWithURL:url];
                 AFHTTPRequestOperation *op = [[AFHTTPRequestOperation alloc]initWithRequest:request];
    op.responseSerializer = [AFJSONResponseSerializer serializer];
    [op setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
//        NSLog(@"success:%@",responseObject);
        successBlock(responseObject);
    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
        failureBlock(error);
    }];
    [op start];


     //   [manager POST:urlStr parameters:nil
     //         success:^(AFHTTPRequestOperation *operation, id responseObject) {
        //          NSLog(@"success:%@",responseObject);
         //     } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
         //         NSLog(@"err:%@",error);
         //     }];

使用AFNetworking 2.0 请求数据时出现错误 Request failed: unacceptable content-type: text/html 解决方法

添加一行

manager.responseSerializer.acceptableContentTypes = [NSSet setWithObject:@"text/html"];
即可

整个代码为：

复制代码
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.responseSerializer.acceptableContentTypes = [NSSet setWithObject:@"text/html"];
NSDictionary *parameters = @{@"foo":@"bar"};
[manager POST:@"http://example.com/resources.json" parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(@"JSON: %@",responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(@"Error:%@",error);
}];
复制代码

• 这是NSURLSessionTask的一个bug. 用流处理下reuest请求就可以了。以下代码是解决Status Code: 411 (需要内容长度头 (Length required)的方法，可以参考下。

  // Prepare a temporary file to store the multipart request prior to sending it to the server due to an alleged
  // bug in NSURLSessionTask.
  NSString* tmpFilename = [NSString stringWithFormat:@"%f", [NSDate timeIntervalSinceReferenceDate]];
  NSURL* tmpFileUrl = [NSURL fileURLWithPath:[NSTemporaryDirectory() stringByAppendingPathComponent:tmpFilename]];
  
  AFHTTPRequestSerializer *requestSerializer = [AFHTTPRequestSerializer serializer];
  
  // Create a multipart form request.
  NSMutableURLRequest *request = [requestSerializer multipartFormRequestWithMethod:@"POST" URLString:uploadUrl parameters:parameter constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
  
      [formData appendPartWithFileURL:[NSURL fileURLWithPath:path] name:name fileName:fileName mimeType:contentType error:nil];
  
  } error:nil];
  
  // Dump multipart request into the temporary file.
  [requestSerializer requestWithMultipartFormRequest:request writingStreamContentsToFile:tmpFileUrl completionHandler:^(NSError *error) {
  
      // Once the multipart form is serialized into a temporary file, we can initialize
      // the actual HTTP request using session manager.
  
      // Create default session manager.
      AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
      manager.responseSerializer = [AFHTTPResponseSerializer serializer]; //很重要，去掉会出现Content-Type错误
  
      // Show progress.
      NSProgress *progress = nil;
  
      // Here note that we are submitting the initial multipart request. We are, however,
      // forcing the body stream to be read from the temporary file.
      NSURLSessionUploadTask *uploadTask = [manager uploadTaskWithRequest:request fromFile:tmpFileUrl progress:&progress completionHandler:^(NSURLResponse *response, id responseObject, NSError *error) {
  
          // Cleanup: remove temporary file.
          [[NSFileManager defaultManager] removeItemAtURL:tmpFileUrl error:nil];
  
          // Do something with the result.
          if (error) {
  
              NSLog(@"upload Error: %@", error);
              result (nil,error);
  
          }else
          {
              NSDictionary *jsonValue = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableLeaves error:NULL];
              NSLog(@"upload Success: %@", jsonValue);
  
              result (jsonValue,error);
          }
      }];
  

// // Add the observer monitoring the upload progress.
// [progress addObserver:self forKeyPath:@"fractionCompleted" options:NSKeyValueObservingOptionNew context:NULL];

    // Start the file upload.
    [uploadTask resume];

[参考链接](https://github.com/AFNetworking/AFNetworking/issues/1398 "")

请问楼主最后是怎么解决的，我上传清晰点的图片就报Request failed: request too large (413)

楼主怎么解决的啊

楼主怎么解决的啊