C# RestSharp 獲取請求失敗

Question

我正在嘗試使用 C# RestSharp 發送 GET 請求，如下所示。

ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
var client = new RestClient("https://www.futureelectronics.cn/p/2052120");
client.Timeout = -1;
var request = new RestRequest(Method.GET);
IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content);

此代碼不適用於超時。

但 python 相同的代碼運行良好。

import requests

url = "https://www.futureelectronics.cn/p/2052120"

payload={}
headers = {}

response = requests.request("GET", url, headers=headers, data=payload)

print(response.text)

這個錯誤的原因是什么？ 謝謝你。

Answer 1

我建議在 try catch 塊中嘗試它，看看是否產生了錯誤，這可以闡明原因。 萬一您的目標拒絕使用 Tls12，我還建議交換：

ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;

為了：

ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3 | 安全協議類型.Tls | 安全協議類型.Tls11 | 安全協議類型.Tls12;

另一件事，我發現添加： ServicePointManager.ServerCertificateValidationCallback = new System.Net.Security.RemoteCertificateValidationCallback(AcceptAllCertifications);

還幫助我追蹤問題。

所以：

ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3 | SecurityProtocolType.Tls | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls12;
ServicePointManager.ServerCertificateValidationCallback = new System.Net.Security.RemoteCertificateValidationCallback(AcceptAllCertifications);
var client = new
RestClient("https://www.futureelectronics.cn/p/2052120");
client.Timeout = -1;
var request = new RestRequest(Method.GET);
try
{
    IRestResponse response = client.Execute(request);
}
catch (Exception ex)
{
    Console.WriteLine("Caught exception : " + ex.message)
}
Console.WriteLine(response.Content);

這對你有什么好處？

Answer 2

請嘗試在執行行之前添加以下行。 我發現它需要 TLS12；

System.Net.ServicePointManager.SecurityProtocol = System.Net.SecurityProtocolType.Tls12;