PHP to Java using Socket

Question

我正在尝试使用套接字在Java和PHP之间发送消息，但我无法让它工作。我首先尝试了Java到Java，工作正常，但现在我想让PHP到Java和其他方式。PHP说消息已经发送，但Java没有得到。谁能帮我解决这个问题？

爪哇服务器：

import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;
public class Server {
    public static void main(String args[]) throws IOException {
        final int portNumber = 81;
        ServerSocket serverSocket = new ServerSocket(portNumber);
        while (true) {
            Socket socket = serverSocket.accept();
            OutputStream os = socket.getOutputStream();
            PrintWriter pw = new PrintWriter(os, true);
            BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            String line;
            while ((line = br.readLine()) != null) {
                System.out.println("Client response: " + line);
                pw.println(line);
            }
            pw.close();
            br.close();
            os.close();
            socket.close();
        }
    }
}

爪哇客户端：

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
public class Client extends Thread {
    Socket socket;
    BufferedReader br;
    PrintWriter out;
    String disconnectReason;
    boolean disconnected = false;
    public boolean running;
    public static void main(String[] args) {
        Client client = new Client();
        client.sendMessage("Hello!");
    }
    public Client() {
        new Thread(this).start();
        running = true;
    }
    @Override
    public void run() {
        try {
            socket = new Socket("localhost", 81);
            br = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            out = new PrintWriter(socket.getOutputStream(), true);
            while (running) {
                String line;
                if((line = br.readLine()) != null) {
                    System.out.println("Server response: " + line);
                }
            }
            System.out.println("Disconnected. Reason: " + disconnectReason);
            disconnected = true;
            running = false;
            br.close();
            out.close();
            socket.close();
            System.out.println("Shutted down!");
            System.exit(0);
        } catch (IOException e) {
            if(e.getMessage().equals("Connection reset")) {
                disconnectReason = "Connection lost with server";
                disconnected = true;
                System.out.println("Disconnected from server. Reason: Connection reset");
            } else {
                e.printStackTrace();
            }
        }
    }
    public void sendMessage(String message) {
        if(running) {
            if (!disconnected) {
                if (out != null && socket != null) {
                    out.println(message);
                    out.flush();
                }
            }
        }
    }
}

我尝试过的PHP代码：

<?php
$host = "localhost"; 
$port = 81;
$data = 'test';
if ( ($socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP)) === FALSE )
    echo "socket_create() failed: reason: " .             socket_strerror(socket_last_error());
else 
{
    echo "Attempting to connect to '$host' on port '$port'...<br>";
    if ( ($result = socket_connect($socket, $host, $port)) === FALSE )
        echo "socket_connect() failed. Reason: ($result) " .     socket_strerror(socket_last_error($socket));
    else {
        echo "Sending data...<br>";
        socket_write($socket, $data, strlen($data));
        echo "OK<br>";
        echo "Reading response:<br>";
        while ($out = socket_read($socket, 2048)) {
            echo $out;
        }
    }
    socket_close($socket);      
}
?>

编辑：似乎注释socket_read解决了在 Java 中接收消息的问题，但问题仍然存在，如何从 Java 发送到 PHP

Answer 1

好的，发现了问题，您必须显示php行的末尾在哪里，以便套接字可以发送它，它将像魅力一样工作:)

 socket_write ($my_socket, $data."rn", strlen ($data."rn"));