关于afnetworking加入header

 1 AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
 2     manager.requestSerializer = [AFHTTPRequestSerializer serializer];
 3     manager.responseSerializer = [AFJSONResponseSerializer serializer];
 4     //加入header的key和value
 5     [manager.requestSerializer setValue:value forHTTPHeaderField:key];
 6     NSLog(@"header-------%@",manager.requestSerializer.HTTPRequestHeaders);
 8     manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"text/html", @"application/json",@"text/plain", nil];
 9     [manager GET:urlStr parameters:nil progress:nil
10          success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
11              NSLog(@"-----------%@",responseObject);
12          } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
13              NSLog(@"error-------%@",error);
14 
15          }];