swift - URLSession 崩溃应用程序且没有日志

Question

我正在尝试使用 Swift 向带有一些 JSON 数据的 php 脚本发出 POST 请求。当我运行以下代码时，我的应用程序崩溃并且没有信息记录到控制台。

if let jsonData = try? JSONSerialization.data(withJSONObject: dict, options: .prettyPrinted) {
     let url = NSURL(string: "https://www.centrohq.com/api/payment/")!
     let request = NSMutableURLRequest(url: url as URL)
     request.httpMethod = "POST"
     request.addValue("application/json", forHTTPHeaderField: "Content-Type")
     request.httpBody = jsonData

     let task = URLSession.shared.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) in
           print(response)
     })
     task.resume()
}

Answer 1

我会尝试解开网址。我过去遇到过一些问题，因为我没有安全地解开传入的网址:

if let jsonData = try? JSONSerialization.data(withJSONObject: dict, options: .prettyPrinted) {
    if let url = NSURL(string: "https://www.centrohq.com/api/payment/") {
        let request = NSMutableURLRequest(url: url as URL)
        request.httpMethod = "POST"
        request.addValue("application/json", forHTTPHeaderField: "Content-Type")
        request.httpBody = jsonData

        let task = URLSession.shared.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) in
            print(response)
        })
        task.resume()
    }
}