C# RestSharp 获取请求失败

Question

我正在尝试使用 C# RestSharp 发送 GET 请求，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);

此代码不适用于超时。

但 python 相同的代码运行良好。

import requests

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

payload={}
headers = {}

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

print(response.text)

这个错误的原因是什么？ 谢谢你。

Answer 1

我建议在 try catch 块中尝试它，看看是否产生了错误，这可以阐明原因。 万一您的目标拒绝使用 Tls12，我还建议交换：

ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;

为了：

ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3 | 安全协议类型.Tls | 安全协议类型.Tls11 | 安全协议类型.Tls12;

另一件事，我发现添加： ServicePointManager.ServerCertificateValidationCallback = new System.Net.Security.RemoteCertificateValidationCallback(AcceptAllCertifications);

还帮助我追踪问题。

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);

这对你有什么好处？

Answer 2

请尝试在执行行之前添加以下行。 我发现它需要 TLS12；

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