http返回值转换成json后，int类型转成的是NSNumber

今天在做一个简单测试，http post，httpPOST返回后的json是code=20000，一开始直接使用int类型强转 ，发现有问题，打印出来的结果始终不对，后来调试发现原来int类型值其实转成了NSNumber，同时也发现如果 MBProgressHUD使用时的一个注意点，就是纯text模式下，text一定要是NSString，如果是其他类型程序就崩溃了

    AFHTTPRequestOperationManager *manager = [[AFHTTPRequestOperationManager alloc]init];

    

    NSMutableDictionary *params = [[NSMutableDictionary alloc]init];

    [params setObject:_nameTF forKey:@"account"];

    [params setObject:_nameTF forKey:@"password"];

    [params setObject:_nameTF forKey:@"nickname"];

   

    [manager POST:REGURL parameters:params success: ^(AFHTTPRequestOperation *operation, id responseObject) {

        

        NSString *response = [NSString stringWithString:operation.responseString];

        NSData   *data = [[NSData alloc]initWithData:[response dataUsingEncoding:NSUTF8StringEncoding]];

        NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers  error:nil];

        

        NSLog(@"responseObject: %@", dic);

        NSNumber *code = [dic valueForKey:@"code"];

        

        NSLog(@"responseObject[CODE]:%ld", [code intValue]);

        dispatch_async(dispatch_get_main_queue(), ^{

            

            [MBProgressHUDShow MBProgressHUDShowText:self.navigationController.view textA:[[NSString alloc]initWithFormat:@"code = %d", [code intValue]] yOffsetFromBottomA:100.0f holdTimeA:2];

        });

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

        NSLog(@"error: %@", error);

    }];