NSMutableURLRequest 正确发布

Question

所以我正在尝试使用 NSMutableURLRequest 登录我的网站，它通过帖子提供凭据。作为菜鸟，我对这种方法的功能有一些疑问，以确保我理解它。

NSString *post = [NSString stringWithFormat:@"username=%@&password=%@&TARGET=%@",LoginId,LoginPwd,target];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:@"%d",[postData length]];

NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setHTTPShouldHandleCookies:YES];
[request setURL:[NSURL URLWithString:[NSString stringWithFormat:@"https://somelogin.mycomp.verify.fcc"]]];
//[request setURL:url];
[request setHTTPMethod:@"POST"];
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];
[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Current-Type"];
[request setHTTPBody:postData];

NSURLConnection *conn = [[NSURLConnection alloc]initWithRequest:request delegate:self];

现在这将通过委托方法自动处理任何重定向，对吗？它还会一路收集任何cookies吗？另外，我应该改用异步请求吗？谢谢！

更新： 所以我推断出一些 cookie 被请求和后续重定向忽略了。有谁知道为什么会发生这种情况？

Answer 1

同步登录的时候可以做这样的事情……代码并不完美，但大体思路是这样的。

在此处查找文档

https://developer.apple.com/library/content/documentation/Cocoa/Conceptual/URLLoadingSystem/Articles/AuthenticationChallenges.html#//apple_ref/doc/uid/TP40009507-SW1

// credentials set here
NSURLCredential *creds = [NSURLCredential credentialWithUser:LoginId password:LoginPwd
                                           persistence:NSURLCredentialPersistenceForSession];

NSURLProtectionSpace *protectionedSpace = [[NSURLProtectionSpace alloc]
  initWithHost:@"mycomp.verify.fcc"
  port:8443
  protocol:@"https"
  realm:nil
  authenticationMethod:nil];


[[NSURLCredentialStorage sharedCredentialStorage] setDefaultCredential:creds
                                            forProtectionSpace:protectionedSpace];

// removed credentials from line...
NSString *post = [NSString stringWithFormat:@"TARGET=%@",target];

这是一个异步操作的教程

http://iosdevelopertips.com/networking/handling-url-authentication-challenges-accessing-password-protected-servers.html