afnetworking 得到json数据

Afnetwork get json

按照官方教程获取了几个网上的免费json都不成功，发现acceptable contenttype 问题，修改好了

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.responseSerializer.acceptableContentTypes = [NSSet setWithObject:@"text/plain"];
[manager GET:@"http://192.168.1.117:8888/hello.json"
  parameters:nil
     success:^(AFHTTPRequestOperation *operation, id responseObject) {
    NSLog(@"JSON: %@", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"Error: %@", error);
}];