我使用的是 Xcode 7、Swift 2 和 iOS9。我想使用 NSURLSession 连接到 Web 服务，但在尝试连接时出现以下错误:

2015-10-13 16:07:33.595 XCTRunner[89220:4520715] NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9813)
2015-10-13 16:07:33.604 XCTRunner[89220:4520571] Error with connection, details: Error Domain=NSURLErrorDomain Code=-1202 "The certificate for this server is invalid. You might be connecting to a server that is pretending to be “domainapi.com” which could put your confidential information at risk." UserInfo={NSURLErrorFailingURLPeerTrustErrorKey=<SecTrustRef: 0x7fac7b6facc0>, NSLocalizedRecoverySuggestion=Would you like to connect to the server anyway?,

这是我的代码:

func request( dataPost : String, successHandler: (response: String) -> Void)-> String {
        let destination:String =  "https://domainapi.com:8743/WebService/sendData"
        let request = NSMutableURLRequest(URL: NSURL(string: destination as String)!)
        request.HTTPMethod = "POST"
        let postString = dataPost
        request.HTTPBody = postString.dataUsingEncoding(NSUTF8StringEncoding)
        request.setValue("0", forHTTPHeaderField: "Content-Length")
        request.setValue("application/xml", forHTTPHeaderField: "Content-Type")
        request.setValue("gzip,deflate", forHTTPHeaderField: "Accept-Encoding")
        request.setValue("Keep-Alive", forHTTPHeaderField: "Connection")
        NSLog("Body is: %@", request.HTTPBody!)
        NSLog("Request is: %@", request.allHTTPHeaderFields!)
        NSLog("URL is: %@", destination)

        let task = NSURLSession.sharedSession().dataTaskWithRequest(request) {
            data, response, error in


            if error != nil {
                NSLog("Error with connection, details: %@", error!)
                return
            }

            let responseString = NSString(data: data!, encoding: NSUTF8StringEncoding)

            successHandler(response: responseString as String!);
            NSLog("Data received: %@", data!)

        }

        task.resume()
        return "worked"
    }
    func viewDidLoad() {
        let dataPost : String = "<webservices>xml data sending</webservices>"
        request(dataPost, successHandler: {
            (response) in
            let text = response
            print(text)
        });

我已经研究过 NSURLAuthenticationChallenge，但我似乎无法用我目前已有的代码来解决这个问题。所以我的问题是我怎样才能连接到服务器？我已经尝试在 Info.plist 中将域添加到我的 NSAppTransportSecurity 中，但这没有用。打开 NSAllowsArbitraryLoads 也没有用。任何帮助将不胜感激。

最佳答案

看看这篇文章。 Shipping an App With App Transport Security特别是有关自签名证书的部分。

您很可能需要表单的委托(delegate)方法，

func URLSession(session: NSURLSession, didReceiveChallenge challenge: NSURLAuthenticationChallenge, completionHandler: (NSURLSessionAuthChallengeDisposition, NSURLCredential?) -> Void) {
    completionHandler(
        .UseCredential, 
        NSURLCredential(trust: challenge.protectionSpace.serverTrust!)
    )
}

将它添加到我自己的使用 NSURLSession 的通信类中解决了这个问题。

关于xcode - 使用 NSURLSession 连接到具有无效证书的服务器(swift2、xcode7、ios9)，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/33128240/