Question

我正在使用POST方法和multipartMethod将图像从iphone上传到服务器。我的Objective-C代码是

maxDocuments

我的PHP文件（update_profile.php）代码是

numBytes

我在其他项目中使用了相同的代码，但是在这个项目中工作得很好但是没有工作。问题与EL Capitan OSX有关吗？因为我更新了我的操作系统。任何人都知道我哪里错了？任何帮助，将不胜感激。感谢。

错误是：服务器端未收到数据和图像。没有任何内容（$ _ FILES），我也检查了$ _POST和$ _REQUEST，但是服务器没有收到“a：0 {}”保存在'newfile.txt'中的任何内容。我在服务器上创建文件'newfile.txt'，但此文件中没有任何内容。

Answer 1

//对于Objective-c代码 - 将uiimage转换为nsdata // ---- //注意：在php端编写转换json字符串到图像的编码，轻松找到谷歌 // ---

NSData *data1 = UIImageJPEGRepresentation(imgProfileView.image,0.8);  //0.1 to 1.0 upto image resolution

NSString *encodedString1 =   [data1 base64EncodedStringWithOptions:NSDataBase64EncodingEndLineWithLineFeed];

NSMutableDictionary *dicImage=[[NSMutableDictionary alloc] init];
[dicImage setObject:encodedString1 forKey:@"image1"];
[dicImage setObject:[dic valueForKey:@"des1"] forKey:@"des1"]; // if added any extra filed then

NSMutableDictionary *dic_set_Sync=[[NSMutableDictionary alloc] init];
[dic_set_Sync setObject:APPDELEGATE.strEmailId forKey:@"email"];
[dic_set_Sync setObject: dicImage forKey:@"compressor_sync"];


NSError *error = nil;
NSData *data = [NSJSONSerialization dataWithJSONObject:dic_set_Sync options:0 error:&error];
NSString *string = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
if (error)
    NSLog(@"%s: JSON encode error: %@", __FUNCTION__, error);

NSURL *url = [NSURL URLWithString:@"https://www.inspectab.com/app/webservice/offline/compressor_syc.php"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];

[request setHTTPMethod:@"POST"];
NSString *params = [NSString stringWithFormat:@"json=%@",
                    [string stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];

NSData *paramsData = [params dataUsingEncoding:NSUTF8StringEncoding];
[request addValue:@"8bit" forHTTPHeaderField:@"Content-Transfer-Encoding"];
[request addValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
[request setHTTPBody:paramsData];

NSURLResponse *response = nil;
NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];

if (error)
    NSLog(@"%s: NSURLConnection error: %@", __FUNCTION__, error);

// examine the response

NSString *responseString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
NSLog(@"responseString: %@",responseString);

if(![responseString isEqualToString:@""])
{
    NSDictionary *dicResponse = [NSJSONSerialization JSONObjectWithData:returnData
                                                                options:kNilOptions error:&error];

    NSLog(@"dicResponse: %@", dicResponse);
}

Answer 2

我已经使用以下代码进行图片上传，我认为这可能会有所帮助 -

   NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer]  multipartFormRequestWithMethod:@"POST" URLString:@“youUrl” parameters:parameters constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
    [formData appendPartWithFileData:imageData name:@"file" fileName:@"image.png" mimeType:@"image/png"];
} error:nil];


NSURLSessionUploadTask *uploadTask;
uploadTask = [manager
              uploadTaskWithStreamedRequest:request
              progress:^(NSProgress * _Nonnull uploadProgress) {
                  // This is not called back on the main queue.
                  // You are responsible for dispatching to the main queue for UI updates
                  dispatch_async(dispatch_get_main_queue(), ^{
                      //Update the progress view
                      //  [self.progressView setProgress:uploadProgress.fractionCompleted];

                      NSLog(@"Proggress%f",uploadProgress.fractionCompleted);
                  });




              }
              completionHandler:^(NSURLResponse * _Nonnull response, id  _Nullable responseObject, NSError * _Nullable error) {
                  if (error) {
                      NSLog(@"Error: %@", error);
                      [HUD setHidden:YES];
                      UIAlertController *alert=[UIAlertController alertControllerWithTitle:@"Please check Internet Connection!" message:@"Error" preferredStyle:UIAlertControllerStyleAlert];
                      UIAlertAction *ok=[UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault handler:nil];
                      [alert addAction:ok];
                      [self presentViewController:alert animated:YES completion:nil];
                  } else {


                      // [HUD show:NO];
                      [HUD setHidden:yes];

                      NSLog(@"%@ %@", response, responseObject);

                  }
              }];

[uploadTask resume];

图像不在Objective C中通过POST上传到服务器

2 个答案: