Question

我正在开发一个应用程序，我需要将文件上传到某个服务器，并且我正在使用AFNetworking上传文件。

所有工作正常，除非文件大小很短，如2mb，如果超过此值，服务器会回复我错误状态代码500并且不上传文件。

下面是我上传的代码。

[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
[request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
[request setValue:lang forHTTPHeaderField:@"Accept-Language"];
[request setValue:authVal forHTTPHeaderField:@"authorization"];
[request setValue:[headerParams objectForKey:@"x-file-name"] forHTTPHeaderField:@"x-file-name"];
[request setValue:[headerParams objectForKey:@"x-convert-document"] forHTTPHeaderField:@"x-convert-document"];
[request setValue:[headerParams objectForKey:@"x-source"] forHTTPHeaderField:@"x-source"];

//convert parameters in to json data

if ([params isKindOfClass:[NSDictionary class]]) {
    NSError *error;
    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:params
                                                       options:NSJSONWritingPrettyPrinted
                                                         error:&error];
    jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
}

[request setURL:[NSURL URLWithString:action]];
[request setTimeoutInterval:200.0];
[request setHTTPMethod:@"POST"];
NSMutableData *postBody = [NSMutableData data];
[postBody appendData:[jsonString dataUsingEncoding:NSUTF8StringEncoding]];
[request setHTTPBody:imageData];
NSLog(@"File size is : %.2f MB",(float)imageData.length/1024.0f/1024.0f);


AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc]initWithRequest:request];

operation.responseSerializer = [AFJSONResponseSerializer serializer];

[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {

    NSInteger statusCode = [operation.response statusCode];
    NSNumber *statusObject = [NSNumber numberWithInteger:statusCode];
    successBlock(responseObject, statusObject);

} failure:^(AFHTTPRequestOperation *operation, NSError *error) {

}

代码行[request setHTTPBody:imageData];正在设置图片的NSData。

同样的事情适用于Android及其工作正常，但他们使用流，首先将文件写入物理路径，然后使用流上传。这可以使用AFNetworking吗？或者我也可以通过其他方法实现这一目标吗？

寻找建议。

由于

Answer 1

注意： - 我刚刚使用AFNetworking 3.0实现了图片上传服务，

- ＆GT;这里kBaseURL表示服务器的基本URL

- ＆gt; serviceName表示服务名称。

- ＆gt; dictParams表示根据需要提供参数，否则为nil。

- ＆gt;图片意味着传递您的图片。

注意： - 此代码用NSObject类编写，我们已在项目中使用。

+ (void)requestPostUrlWithImage: (NSString *)serviceName parameters:(NSDictionary *)dictParams image:(UIImage *)image success:(void (^)(NSDictionary *responce))success failure:(void (^)(NSError *error))failure {

NSString *strService = [NSString stringWithFormat:@"%@%@",kBaseURL,serviceName];
[SVProgressHUD show];

NSData *fileData = image?UIImageJPEGRepresentation(image, 0.5):nil;

NSError *error;
NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:strService parameters:dictParams constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {

if(fileData){
    [formData appendPartWithFileData:fileData
                                name:@"image"
                            fileName:@"img.jpeg"
                            mimeType:@"multipart/form-data"];
}
} error:&error];

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

NSURLSessionUploadTask *uploadTask;
uploadTask = [manager uploadTaskWithStreamedRequest:request progress:^(NSProgress * _Nonnull uploadProgress) {

NSLog(@"Wrote %f", uploadProgress.fractionCompleted);
}
                              completionHandler:^(NSURLResponse *    _Nonnull response, id  _Nullable responseObject, NSError * _Nullable error) {
                                  [SVProgressHUD dismiss];
                                  if (error)
                                  {
                                      failure(error);
                                  }
                                  else
                                  {
                                      NSLog(@"POST Response  :      %@",responseObject);
                                      success(responseObject);

                                  }
                              }];

[uploadTask resume];

}

- ＆GT;现在申请我们的项目。

UIImage *imgProfile = //Pass your image.        


[WebService requestPostUrlWithImage:@"saveImageWithData" parameters:nil image:imgProfile success:^(NSDictionary *responce) {

    NSString  *check = [NSString stringWithFormat:@"%@",[responce objectForKey:@"status"]];
    if ([check  isEqualToString: @"1"]) {
       //Image Uploaded. 
    }
    else
    {
     //Failed to Upload.
    }


} failure:^(NSError *error) {
    //Error
}];

如何使用AFNetworking上传大尺寸文件

1 个答案: