连接到iOS中的服务器未调用DiReceiveAuthenticationChallenge？

我正在尝试连接到iOS应用程序中的服务器。这是我的密码：

- (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>

未调用didReceiveAuthenticationChallenge，但调用了didReceiveResponse并打印“401”，并且didReceiveData返回“需要验证”页面上的文本

---

didReceiveAuthenticationChallenge从未调用，CanAuthenticationAgainstProtectionSpace也未调用，因此我无法进行身份验证。如何解决此问题？

要调用此方法，必须在url中使用https而不是http

NSString *url = @"https://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];

---

我认为你错过了一位代表

---

NSURLAuthenticationChallengeSender

是否调用了

CanAuthenticationAgainstProtectionSpace

？我应该使用什么来代替？啊，我明白了。不幸的是，我正在连接的站点没有https设置，只有HTTP。有没有其他方法可以连接到常规http？从来没有让它只在http上工作，而且考虑到使用这种身份验证方法（基本身份验证），您的凭据会随每个请求一起发送，不加密是一个相当大的安全漏洞，这是一个巨大的安全漏洞。我同意。我们只是想看看它现在是否连接，这是下一步。您可以在这里尝试联网，它提供了一些方便的方法来根据请求设置基本身份验证头（[httpClient setAuthorizationHeaderWithUsername:_UserNamePassword:_password]；）