Question

我正在尝试连接到iOS应用中的服务器。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：

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>

didReceiveAuthenticationChallenge未被调用，但调用didReceiveResponse并打印“401”并且didReceiveData返回页面上的文本“要求身份验证”。

didReceiveAuthenticationChallenge永远不会被调用，也不是canAuthenticateAgainstProtectionSpace，所以我无法进行身份验证。我该如何解决这个问题？

Answer 1

您必须在网址中使用https而不是http才能调用此方法。

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];

Answer 2

我认为你错过了一个代表

NSURLAuthenticationChallengeSender

在iOS中连接到服务器didRecieveAuthenticationChallenge未调用？

2 个答案: