AFNetworking2.0
NSURLRequest *urlRequest = [NSURLRequest requestWithURL:[NSURL URLWithString:urlString] cachePolicy:NSURLRequestReloadIgnoringLocalAndRemoteCacheData timeoutInterval:1];
AFHTTPRequestOperation *operstion = [[AFHTTPRequestOperation alloc] initWithRequest:urlRequest];
[operstion start];
[operstion waitUntilFinished];
return operstion.responseData;
AFNetworking3.0
NSString *urlString =@"";
NSURL *url = [NSURL URLWithString:urlString];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
dispatch_semaphore_t disp = dispatch_semaphore_create(0);
NSURLSessionDataTask *dataTask = [[NSURLSession sharedSession] dataTaskWithRequest:request completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
//處理model
dispatch_semaphore_signal(disp);
}];
[dataTask resume];
dispatch_semaphore_wait(disp, DISPATCH_TIME_FOREVER);
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