来自服务器的JSON响应代码

{
"status":"ok","error_code":0,"data" : [],"msg":"everything is working!"
}

JSON正在转换为NSDictionary.

NSError *error = nil;
NSDictionary *jsonDict = [NSJSONSerialization
                          JSONObjectWithData:data
                          options:NSJSONReadingMutableContainers
                          error: &error];

我使用以下代码访问NSDictionary值.

int error_code = (int)[jsonDict valueForKey:@"error_code"]
NSLog(@"%i",error_code);
The log outputs the following: 143005344

我甚至尝试了objectForKey,并得到相同的回复.

提前致谢.