IOS 中的开机自检方法问题

Question

我有一个用户表单。填写后，用户单击提交按钮，其数据将提交到服务器。我遇到一个问题，即我收到响应为空，但我从表单中的数据已成功提交到服务器。我不知道问题出在哪里。如果响应成真，我想运行另一个函数。我的代码是这样的：

NSURLSessionConfiguration *defaultConfigObject = [NSURLSessionConfiguration defaultSessionConfiguration];
NSURLSession *defaultSession = [NSURLSession sessionWithConfiguration: defaultConfigObject delegate: nil delegateQueue: [NSOperationQueue mainQueue]];
NSString *urlLinkA=@"My URL";

NSURL * url = [NSURL URLWithString:urlLinkA];
NSMutableURLRequest * urlRequest = [NSMutableURLRequest requestWithURL:url];
NSString *parameters = [NSString stringWithFormat:@"%@",Parameter];

NSLog(@"parameter %@",parameters);
[urlRequest setHTTPMethod:@"POST"];
[urlRequest setHTTPBody:[parameters dataUsingEncoding:NSUTF8StringEncoding]];
NSURLSessionDataTask * dataTask =[defaultSession dataTaskWithRequest:urlRequest
completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
[_indicator stopAnimating];
_indicator.hidden=YES;
NSLog(@"Response:%@ %@n", response, error);
NSDictionary *dictionary = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:&error];
NSLog(@"DDD %@",dictionary);
NSString *userid = [dictionary valueForKey:@"property_id"];
NSLog(@"UserID: %@", userid);

NSLog(@"Response: %@", dictionary);
if ([dictionary isEqual:@""]) {
[self Images];
}
HomePageViewController *presales = [self.storyboard instantiateViewControllerWithIdentifier:@"HomeViewController"];
[self.navigationController pushViewController:presales animated:YES];
NSString *msg=@"Successfully Registered";
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"Success"
                                                    message:msg
                                             preferredStyle:UIAlertControllerStyleAlert];
[self presentViewController:alert animated:YES completion:nil];
int duration = 2; // duration in seconds
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, duration * NSEC_PER_SEC), dispatch_get_main_queue(), ^{
[alert dismissViewControllerAnimated:YES completion:nil];
});
}];

NSLog(@"network error :");
[dataTask resume];
}

Answer 1

请尝试在浏览器中使用邮递员或 RestClient 并调试您的 post 请求，服务器可能没有向您发送正确的响应。 您可以从 https://restlet.com 下载它 这里.