如果网站不需要验证,我的代码就可以正常工作,如果是这样,那么在打印“凭证已创建”之后,EXC_BAD_ACCESS会出错。我没有发布任何东西,这个代码直接从文档中复制 - 任何想法有什么不对?didReceiveAuthenticationChallenge导致EXC_BAD_ACCESS
- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge {
if ([challenge previousFailureCount] == 0)
{
NSLog(@"received authentication challenge");
NSURLCredential *newCredential;
newCredential=[NSURLCredential credentialWithUser:@"root"
password:@"rootpassword"
persistence:NSURLCredentialPersistenceForSession];
NSLog(@"credential created");
[[challenge sender] useCredential:newCredential forAuthenticationChallenge:challenge];
NSLog(@"responded to authentication challenge");
}
else
{
NSLog(@"previous authentication failure");
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Authentication Failure"
message:@"Website did not accept the username and password."
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
[alert show];
[alert release];
}
}