AFURLSessionManager 上传下载使用代码说明

1、下载 Creating a Download Task

  NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration]; 
  AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration]; 
  NSURL *URL = [NSURL URLWithString:@"http://example.com/download.zip"]; 
  NSURLRequest *request = [NSURLRequest requestWithURL:URL]; 
  NSURLSessionDownloadTask *downloadTask = [manager downloadTaskWithRequest:request progress:nil destination:^NSURL *(NSURL *targetPath, NSURLResponse *response) { 
    NSURL *documentsDirectoryURL = [[NSFileManager defaultManager] URLForDirectory:NSdocumentDirectory inDomain:NSUserDomainMask appropriateForURL:nil create:NO error:nil]; 
    return [documentsDirectoryURL URLByAppendingPathComponent:[response suggestedFilename]]; 
  } completionHandler:^(NSURLResponse *response, NSURL *filePath, NSError *error) { 
    NSLog(@"File downloaded to: %@", filePath); 
  }]; 
  [downloadTask resume]; 

2、上传 Creating an Upload Task

 NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration]; 
  AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration]; 
  NSURL *URL = [NSURL URLWithString:@"http://example.com/upload"]; 
  NSURLRequest *request = [NSURLRequest requestWithURL:URL]; 
  NSURL *filePath = [NSURL fileURLWithPath:@"file://path/to/image.png"]; 
  NSURLSessionUploadTask *uploadTask = [manager uploadTaskWithRequest:request fromFile:filePath progress:nil completionHandler:^(NSURLResponse *response, id responseObject, NSError *error) { 
    if (error) { 
      NSLog(@"Error: %@", error); 
    } else { 
      NSLog(@"Success: %@ %@", response, responseObject); 
    } 
  }]; 
  [uploadTask resume]; 

3、批量上传 Creating an Upload Task for a Multi-Part Request, with Progress

NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:@"http://example.com/upload" parameters:nil constructingBodyWithBlock:^(id formData) { 
      [formData appendPartWithFileURL:[NSURL fileURLWithPath:@"file://path/to/image.jpg"] name:@"file" fileName:@"filename.jpg" mimeType:@"image/jpeg" error:nil]; 
    } error:nil]; 
  AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]]; 
  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 
      [progressView setProgress:uploadProgress.fractionCompleted]; 
    }); 
  } 
  completionHandler:^(NSURLResponse * _Nonnull response, id _Nullable responseObject, NSError * _Nullable error) { 
    if (error) { 
      NSLog(@"Error: %@", error); 
    } else { 
      NSLog(@"%@ %@", response, responseObject); 
    } 
  }]; 
  [uploadTask resume]; 

4、数据任务 Creating a Data Task

  NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration]; 
  AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration]; 
  NSURL *URL = [NSURL URLWithString:@"http://httpbin.org/get"]; 
  NSURLRequest *request = [NSURLRequest requestWithURL:URL]; 
  NSURLSessionDataTask *dataTask = [manager dataTaskWithRequest:request completionHandler:^(NSURLResponse *response, id responseObject, NSError *error) { 
    if (error) { 
      NSLog(@"Error: %@", error); 
    } else { 
      NSLog(@"%@ %@", response, responseObject); 
    } 
  }]; 
  [dataTask resume]; 

5、请求参数设置 Request Serialization

Request serializers create requests from URL strings, encoding parameters as either a query string or HTTP body.
  NSString *URLString = @"http://example.com"; 
  NSDictionary *parameters = @{@"foo": @"bar", @"baz": @[@1, @2, @3]}; 

总结

以上所述是小编给大家介绍的AFURLSessionManager 上传下载使用代码说明，希望对大家有所帮助，如果大家有任何疑问欢迎给我留言，小编会及时回复大家的！