NSUrlConnectionDelegate - 获取http状态代码

Question

在iOS中,如何从Web服务器接收响应的http状态代码(404,500 200等).我假设它在NSUrlConnectionDelegate中.

Objective-C或Monotouch .NET回答好.

Answer 1

是的,您可以在委托方法-didRecieveResponse中获取状态代码:

- (void) connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response{
   NSHTTPURLResponse* httpResponse = (NSHTTPURLResponse*)response;
   int code = [httpResponse statusCode];
}

Answer 2

NSHTTPURLResponse* urlResponse = nil;
NSError *error = nil;
responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&urlResponse error:&error];

aSynchronous请求也应该有办法获取NSHTTPURLResponse ..

你得到这样的状态代码:

int statusCode = [urlResponse statusCode];
int errorCode = error.code;

在一些使用过多的错误代码(如404)的情况下,它将被置于错误中,但使用不同的代码(401将为-1012).