ios - NSURLConnection 的错误代码 "-1009"是什么意思？

Question

当我发送请求并收到错误代码 -1009 的错误时，这是​​什么意思？我不确定如何处理它。

- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error{
      NSLog(@"connection didFailWithError");

   if(error.code==-1009){       
      //do something           
   }    
}

Answer 1

由于返回的错误应该在 NSURLErrorDomain 中，code -1009意思是:

NSURLErrorNotConnectedToInternet

Returned when a network resource was requested, but an internet connection is not established and cannot be established automatically, either through a lack of connectivity, or by the user's choice not to make a network connection automatically.