AFNetworking 如何POST一个JSON数据到服务器(2)

                                    NSString *responseStr = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];

                                    NSLog(@"Request Successful, response '%@'", responseStr);

                                    [responseStr release];

                                } failure:^(AFHTTPRequestOperation *operation, NSError *error) {

                                    NSLog(@"[HTTPClient Error]: %@", error);