ios - 如何从 iOS 应用程序使用 POST 发送 NSData？

Question

NSData *imageData = UIImagePNGRepresentation(image);

如何使用 POST 发送图像数据？

Answer 1

下面的代码应该有帮助

NSData *imageData = UIImagePNGRepresentation(image);

NSURL *yourURL = ...
NSMutableURLRequest *yourRequest = [NSMutableURLRequest requestWithURL:yourURL 
                                                           cachePolicy:NSURLRequestUseProtocolCachePolicy 
                                                       timeoutInterval:60.0];
//Set request to post
[yourRequest setHTTPMethod:@"POST"];

//Set content type 
[yourRequest setValue:@"image/png" forHTTPHeaderField:@"Content-Type"];

// Set authorization header if required
...

// set data
[yourRequest setHTTPBody:imageData];


// create connection and set delegate if needed
NSURLConnection *yourConnection = [[NSURLConnection alloc] initWithRequest:yourRequest 
                                                                  delegate:self
                                                          startImmediately:YES];

请注意，假设您使用的是 ARC。