ios - 终止 NSURLConnection ios

Question

我正在NSURL为身份验证创建连接UIWebView。它工作正常，但由于某种原因我无法获得授权。如果我输入了错误的密码，它不会让我再次尝试使用正确的密码登录。终止 的最佳方法是NSURLconnection什么？

我试过这个：

- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
  NSString *errorText = [[error userInfo] description];
  NSLog (@"----------------------------------------------");
  NSLog (@"STEP 4 - connection didFailWithError");
  NSLog (@"Error message: %@", errorText);
  connection = nil;
}

但由于某种原因它不起作用。

Answer 1

无需以您想要的方式终止 NSURLConnection 。

实现了以下 NSURLConnection 委托方法来更改凭据（登录/通过）：

- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge

在此方法中，您需要更改以提供新凭据。像这样的东西：

- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge {
    NSLog(@"received authentication challenge");
    NSURLCredential *newCredential = [NSURLCredential credentialWithUser:@"USER"
                                                                password:@"PASSWORD"
                                                             persistence:NSURLCredentialPersistenceForSession];
    NSLog(@"credential created");
    [[challenge sender] useCredential:newCredential forAuthenticationChallenge:challenge];
    NSLog(@"responded to authentication challenge");    
}