我有一个连接到 API 的函数。有时 API 不可用。我知道为什么,但我想防止我的程序在这种情况下崩溃。但无论我尝试什么,它总是崩溃:
Exception Unhandled
System.Net.WebException: 'Unable to connect to the remote server'
SocketException: No connection could be made because the target machine actively refused it 127.0.0.1:1000
我想记录一条错误消息,然后程序继续而不是崩溃。有人可以指出我正确的方向吗?
static public void ConnectToAPI(string urlstring, string json, string command)
{
WebRequest request = WebRequest.Create(urlstring);
request.Method = command;
byte[] requestBody = Encoding.UTF8.GetBytes(json);
request.ContentLength = requestBody.Length;
request.ContentType = "application/json";
try
{
using (Stream stream = request.GetRequestStream())
}
catch (System.Net.Sockets.SocketException exception)
{
log.Error(exception);
}
}