检查Http状态Swift4 [英] Checking Http Status Swift4
本文介绍了检查Http状态Swift4的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我对凭据和HttpStatus有点困惑。
I'm a bit confused about credentials and HttpStatus.
我正在Swift 4 / XCode9中创建一个登录页面,该页面连接到api。
点击登录按钮时,我会执行以下操作:
I'm making a login page in Swift 4/XCode9, that connects to an api. Here is what I do when the login button is tapped:
@IBAction func loginTapped(_ sender: Any) {
let loginString = String(format: "%@:%@", usernametext.text!, passwordtext.text!)
let loginData = loginString.data(using: String.Encoding.utf8)!
let base64LoginString = loginData.base64EncodedString()
var Base = base64LoginString
let url = URL(string: "SOME URL")!
var request = URLRequest(url: url)
request.addValue("Basic \(Base)", forHTTPHeaderField: "Authorization")
request.addValue("application/json", forHTTPHeaderField: "Accept")
let task = URLSession.shared.dataTask(with: request) { data, response, error in
guard let data = data, error == nil else {
print("\(error)")
return
}
if let httpStatus = response as? HTTPURLResponse {
print("status code = \(httpStatus.statusCode)")
}
}
task.resume()
view.endEditing(true)
}
一切正常,但我不知道如何检查httpstatus。
如果我获得了错误的凭据,我想保留在登录页面上,而不要对下一个视图执行segue。
Everything works fine but I don't know how to check the httpstatus. If I get wrong credentials I want to stay on the login page and not perform segue to the next view.
推荐答案
尝试此代码
func checkStatusCode(response:URLResponse?) -> Bool {
guard let statusCode = (response as? HTTPURLResponse)?.statusCode else {
print("Invalid Response")
return false
}
if statusCode != 200 {
print("Invalid File")
return false
}
return true
}
用法:
if (self.checkStatusCode(response: response)) {
DispatchQueue.main.async {
self.performSegue(withIdentifier: "showW", sender: self)
}
} else {
//added an alert
}
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