Java 本地主机没有’；不发送任何数据。-错误\u空\u响应

但是要检查一下，localhost没有正确响应，它说“页面没有发送任何数据。我尝试到处查找，并尽可能更改了所有可能的设置

恢复chrome设置清除缓存、清除历史记录、更改端口号、

import java.io.*;
import java.net.*;
import java.util.*;
import java.net.InetAddress.*;

public final class WebServer
{
    public static void main(String args[]) throws Exception
    {
        // Set port number
        int port = 0;
        
        // Establish the listening socket
        ServerSocket serverSocket = new ServerSocket(port);
        System.out.println("Port number is: "+serverSocket.getLocalPort());
        
        // Wait for and process HTTP service requests
        while (true) {
            // Wait for TCP connection
            Socket requestSocket = serverSocket.accept();
            
            // Create an object to handle the request
            HttpRequest request = new HttpRequest(requestSocket);
            
            //request.run()
            
            // Create a new thread for the request
            Thread thread = new Thread(request);
            
            // Start the thread
            thread.start();
        }
    }
}

final class HttpRequest implements Runnable
{
    // Constants
    // Recognized HTTP methods
    final static class HTTP_METHOD
    {
        final static String GET = "GET";
        final static String HEAD = "HEAD";
        final static String POST = "POST";
    }
    
    final static String HTTPVERSION = "HTTP/1.1";
    final static String CRLF = "\r\n";
    Socket socket;
    
    // Constructor
    public HttpRequest(Socket socket) throws Exception
    {
        this.socket = socket;
    }
    
    // Implements the run() method of the Runnable interface
    public void run()
    {
        try {
            processRequest();
        } catch (Exception e) {
            System.out.println(e);
        }
    }
    
    // Process a HTTP request
    private void processRequest() throws Exception
    {
        // Get the input and output streams of the socket.
        InputStream ins = socket.getInputStream();
        DataOutputStream outs = new DataOutputStream(socket.getOutputStream());
        
        // Set up input stream filters
        BufferedReader br = new BufferedReader(new InputStreamReader(ins));
        
        
        // Get the request line of the HTTP request
        String requestLine = br.readLine();
        
        // Display the request line
        System.out.println();
        System.out.println("Request:");
        System.out.println(" " + requestLine);
        
        // Close streams and sockets
        outs.close();
        br.close();
        socket.close();
    }
    
    private static void sendBytes(FileInputStream fins,
    OutputStream outs) throws Exception
    {
        // Coopy buffer
        byte[] buffer = new byte[1024];
        int bytes = 0;
        
        while ((bytes = fins.read(buffer)) != -1) {
            outs.write(buffer, 0, bytes);
        }
    }
    
    private static String contentType(String fileName)
    {
        if (fileName.toLowerCase().endsWith(".htm") ||
                fileName.toLowerCase().endsWith(".html")) {
            return "text/html";
        } else if (fileName.toLowerCase().endsWith(".gif")) {
            return "image/gif";
        } else if (fileName.toLowerCase().endsWith(".jpg")) {
            return "image/jpeg";
        } else {
            return "application/octet-stream";
        }
    }
}

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请尽快帮助我。我需要此代码方面的帮助。

发布的代码有一个方法

sendBytes

显然可以将数据发送回，但它没有被调用-没有数据被发送回-消息是正确的

对于每个连接（尝试），代码只读取一条发送的行，将其打印到标准输出并关闭连接。如果我没有错，浏览器希望收到回复（肯定或否定/错误），但由于连接关闭时没有任何回复，浏览器必须显示未发送任何回复的消息