c#简单HTTP服务器不向浏览器发送响应

Question

System.Net.Sockets.TcpListener server = new System.Net.Sockets.TcpListener(System.Net.IPAddress.Loopback, 8080);
server.Start();
Console.WriteLine("Servidor TCP iniciado");
Console.WriteLine("Aguardando conexao de um cliente...");
TcpClient client = server.AcceptTcpClient();
Console.WriteLine("Um cliente conectou-se ao servidor");
System.IO.StreamWriter writer = new System.IO.StreamWriter(client.GetStream());
writer.Write("HTTP/1.0 200 OKrnContent-Type: text/plain; charset=UTF-8rnrnGoodbye, World!rn");
writer.Flush();

Console.WriteLine("Desligando servidor");
server.Stop();
Console.ReadKey();

当我打开浏览器并尝试访问URL http://localhost:8080时，我得到ERR_CONNECTION_RESET错误。我做错了什么?

Answer 1

问题是你有一个不正确的HTTP数据包，它不包含Content-Length，所以浏览器不知道该读什么。试试下面的代码:

TcpListener server = new TcpListener(System.Net.IPAddress.Loopback, 8080);
server.Start();
Console.WriteLine("Wait for clients");
TcpClient client = server.AcceptTcpClient();
Console.WriteLine("Writing content");
string content = "Goodbye World!";
System.IO.StreamWriter writer = new System.IO.StreamWriter(client.GetStream());
writer.Write("HTTP/1.0 200 OK");
writer.Write(Environment.NewLine);
writer.Write("Content-Type: text/plain; charset=UTF-8");
writer.Write(Environment.NewLine);
writer.Write("Content-Length: "+ content.Length);
writer.Write(Environment.NewLine);
writer.Write(Environment.NewLine);
writer.Write(content);
writer.Flush();
Console.WriteLine("Disconnecting");
client.Close();
server.Stop();
Console.ReadKey();