AFHTTPSessionManager *sessionManage = [AFHTTPSessionManager manager];
sessionManage.responseSerializer = [AFJSONResponseSerializer serializerWithReadingOptions:NSJSONReadingAllowFragments];
sessionManage.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"application/json", nil];
[sessionManage.requestSerializerwillChangeValueForKey:@"timeoutInterval"];
sessionManage.requestSerializer.timeoutInterval = 50.0f;
[sessionManage.requestSerializerdidChangeValueForKey:@"timeoutInterval"];
AFJSONResponseSerializer *jsonResponse = (AFJSONResponseSerializer *)sessionManage.responseSerializer;
jsonResponse.removesKeysWithNullValues = YES;
AFHTTPRequestSerializer *requestSerializer = [AFHTTPRequestSerializer serializer];
[requestSerializersetValue:@"" forHTTPHeaderField:@"X-LC-Id"];
[requestSerializersetValue:@"" forHTTPHeaderField:@"X-LC-Key"];
sessionManage.requestSerializer= requestSerializer;
NSString *queryUrl = [NSString stringWithFormat:@"https://(id前八位).lncldglobal.com/1.1/classes/%@?limit=10&%@",url,searchStr];