使用 AFNetworking-Synchronous
链接: https://github.com/paulmelnikow/AFNetworking-Synchronous

同步方法举例

- (void)sendSynRequest {
    AFHTTPSessionManager *manager = [[AFHTTPSessionManager alloc] initWithBaseURL:[NSURL URLWithString:@"http://www.sojson.com/open/api/weather/"]];
    manager.completionQueue = dispatch_queue_create("AFNetworking+Synchronous", NULL);
    
    NSError *error = nil;
    NSData *result = [manager syncGET:@"json.shtml?city=%E6%9D%AD%E5%B7%9E"
                           parameters:nil
                                 task:NULL
                                error:&error];
    NSLog(@"同步: %@", result);
}

异步方法举例

- (void)sendAsynRequest {
    AFHTTPSessionManager *manager = [[AFHTTPSessionManager alloc] initWithBaseURL:[NSURL URLWithString:@"http://www.sojson.com/open/api/weather/"]];
    manager.completionQueue = dispatch_queue_create("AFNetworking+Synchronous", NULL);
    
    [manager GET:@"json.shtml?city=%E6%9D%AD%E5%B7%9E"
      parameters:nil progress:^(NSProgress * _Nonnull downloadProgress) {
          //
      } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
          NSLog(@"异步: %@", responseObject);
      } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
          //
      }];
    
    NSLog(@"我先执行啦~~~~");
}

附上 demo 链接: https://github.com/JessieHu/AFNetworking_Syn