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  • AFURLSessionManager 上传下载使用

    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<AFMultipartFormData> 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]};  
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  • 原文地址:https://www.cnblogs.com/jukaiit/p/7465506.html
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