服务器返回客户端需要的任何文件

Question

服务器

import java.io.*;
import java.net.*;

public class Server {
    public static void main(String[] args) throws IOException {
        ServerSocket serverSocket = null;

        try {
            serverSocket = new ServerSocket(9999);
        } catch (IOException ex) {
            System.out.println("Can't setup server on this port number. ");
        }

        Socket socket = null;
        InputStream in = null;
        OutputStream out = null;

        try {
            socket = serverSocket.accept();
        } catch (IOException ex) {
            System.out.println("Can't accept client connection. ");
        }

        try {
            in = socket.getInputStream();
        } catch (IOException ex) {
            System.out.println("Can't get socket input stream. ");
        }

        try {
            BufferedReader br = new BufferedReader(new InputStreamReader(in));
            String line = br.readLine();
            System.out.println("File name = " + line);

            //Deixem nomes el nom del File o fitxer
            String fileName = line.replace("GET /", "");
            fileName = fileName.replace(" HTTP/1.1", "");
            System.out.println("File name is" + fileName);          

            out = new FileOutputStream(fileName);
        } catch (FileNotFoundException ex) {
            System.out.println("File not found. ");
        }

        byte[] bytes = new byte[16*1024];

        int count;
        while ((count = in.read(bytes)) > 0) {
            out.write(bytes, 0, count);
            System.out.println("Bytees "+count);
        }

        out.close();
        in.close();
        socket.close();
        serverSocket.close();
    }
}

正如您所看到的，我正在使用一个方法replace（）来只保留文件名。客户机将是浏览器，它将请求一个文件，例如：

• 客户端需要文件hello.txtlocalhost:9999/hello.txt
• 服务器位于名为server.class的文件夹java/bin中
• hello.txt文件位于java/files中

null

Answer 1

首先，听从乔恩·斯基特的建议

其次，如果您正在学习，那么请遵循以下
使用套接字进行写入和读取

问题是，您试图编写不是套接字流，而是文件，当然，如果您想做http服务器。您可以检查这个简单的http服务器问题