我正在尝试连接到 iOS 应用程序中的服务器。这是我的代码：
- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge{
NSLog(@"This is happening");
NSURLCredential *newCredential = [NSURLCredential credentialWithUser:@"user"
password:@"password"
persistence:NSURLCredentialPersistenceForSession];
[[challenge sender] useCredential:newCredential forAuthenticationChallenge:challenge];
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
NSHTTPURLResponse* httpResponse = (NSHTTPURLResponse*)response;
int code = [httpResponse statusCode];
NSLog(@"%i",code);
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
NSString* newStr = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
NSLog(@"%@", newStr);
}
- (BOOL)connection:(NSURLConnection *)connection canAuthenticateAgainstProtectionSpace:(NSURLProtectionSpace *)protectionSpace {
NSLog(@"here...");
return YES;
}
这是在 viewDidLoad 中：
NSString *url = @"http://example.com:9999/";
NSURL * URL = [NSURL URLWithString:url];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:URL];
[request setHTTPMethod:@"POST"];
[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
[request setValue:@"application/json" forHTTPHeaderField:@"Accept"];
NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
[connection self];
这是代表的标题：
<NSURLConnectionDelegate,NSURLConnectionDataDelegate>
没有调用 didReceiveAuthenticationChallenge，但调用了 didReceiveResponse 并打印“401”，并且 didReceiveData 返回页面上的文本“需要身份验证”。
didReceiveAuthenticationChallenge 从未被调用，canAuthenticateAgainstProtectionSpace 也从未被调用，因此我无法进行身份验证。我该如何补救？