iOS Swift 3 发布问题

debugcn 发表于 Dev

艾伦·廷吉

我在 iOS 应用程序中使用以下 Swift 3 代码来尝试更新后端 MySQL 数据库：

    var request = URLRequest(url: URL(string: "https://str8red.com/updateAPNS")!)
    request.httpMethod = "POST"
    let postString = "devicetoken=gjhgjgjgkkgggkgkghgkgkhjg"
    request.httpBody = postString.data(using: .utf8)
    let task = URLSession.shared.dataTask(with: request) { data, response, error in
        guard let data = data, error == nil else {                                                 // check for fundamental networking error
            print("error=\(String(describing: error))")
            return
        }

        if let httpStatus = response as? HTTPURLResponse, httpStatus.statusCode != 200 {           // check for http errors
            print("statusCode should be 200, but is \(httpStatus.statusCode)")
            print("response = \(String(describing: response))")
        }

        let responseString = String(data: data, encoding: .utf8)
        print("responseString = \(String(describing: responseString))")
    }
    task.resume()

当我运行此代码时，iOS 会按预期运行并从 Web 服务器返回 500 错误。当我检查 Webserver 报告时，出现以下错误：

MultiValueDictKeyError at /updateAPNS/
        "'devicetoken'

更令人困惑的是，反馈表明：

POST: No POST data

iOS 不应该像上面代码中的第 3 行所述那样发布 devicetoken 变量吗？如果不是，我如何在我的视图中访问 devicetoken 变量？

我的 Django 视图在下面，以防万一它可能有帮助：

def updateAPNS(request, extra_context={}):

currentUser = request.user

currentUserID = currentUser.id

if not currentUserID:

    return HttpResponse("APNS is NOT Updated")

else:

    APNSUpdate, created = APNSDevice.objects.update_or_create(user_id=currentUserID,
                                                                     defaults={"user_id": currentUserID,
                                                                               "registration_id": request.POST['devicetoken']})

    return HttpResponse("APNS is Updated")

艾伦·廷吉

在终端上使用 curl 测试发布请求后，我得到：

  <h1>Forbidden <span>(403)</span></h1>
  <p>CSRF verification failed. Request aborted.</p>

  <p>You are seeing this message because this HTTPS site requires a &#39;Referer header&#39; to be sent by your Web browser, but none was sent. This header is required for security reasons, to ensure that your browser is not being hijacked by third parties.</p>

我一看到这个，我就@csrf_exempt在我的视图之上添加了它，一切都完美无缺。

对于任何想了解更多关于 curl 的人，请前往：

https://superuser.com/questions/149329/what-is-the-curl-command-line-syntax-to-do-a-post-request

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