java和php之间的简单客户端服务器通信

I need to send information from php client to java server, but none is receiving on server side though one print statement is successfully executed on server, the text from client is not able to receive on the server side. Here are the codes:

我需要从php客户端发送信息到java服务器，但是没有一个在服务器端接收，尽管在服务器上成功执行了一个print语句，客户端的文本无法在服务器端接收。以下是代码：

Java Server:

Java服务器：

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

public class javaphp2 {
    private static ServerSocket socket;

    private static Socket connection;
    private static String command       = new String();
    private static String responseStr   = new String();

    private static int port = 4309;

    public static void main(String args[])  {
        System.out.println("Signal Server is running.");

        try  {
            socket = new ServerSocket(port);

            while (true)  {
                connection = socket.accept();

                InputStreamReader inputStream = new InputStreamReader(connection.getInputStream());
                DataOutputStream response = new DataOutputStream(connection.getOutputStream());
                BufferedReader input = new BufferedReader(inputStream);

                command = input.readLine();
                //System.out.println("The input is" + command);
                response.writeBytes(responseStr);
                response.flush();
                //response.close();

                System.out.println("Running");
            }
        } catch (IOException e)  {
            System.out.println("Fail!: " + e.toString());
        }

        System.out.println("Closing...");
    }
}

PHP Client:

PHP客户端：

#!/usr/local/bin/php -q
<?php
$address = '132.119.90.165';
$port = 4309;

$socket = socket_create(AF_INET, SOCK_STREAM, getprotobyname('tcp'));
socket_connect($socket, $address, $port);

$message = 'Apple';
$len = strlen($message);

$status = socket_sendto($socket, $message, $len, 0, $address, $port);
if($status !== FALSE)
{
    $message = '';
    $next = '';
    while ($next = socket_read($socket, 4096))
    {
        $message .= $next;
    }

    echo $message;
}
else
{
    echo "Failed";
}

socket_close($socket);
?>

2 个解决方案

#1

Got it !,

得到它了！，

We need to add $message = "Apple\n"; instead of $message = 'Apple\n';

我们需要添加$ message =“Apple \ n”;而不是$ message ='Apple \ n';

#2

Try to add a line-end to your message.

尝试在邮件中添加行尾。

$message = 'Apple\n';

readLine will always wait for the line-end.

readLine将始终等待行结束。

#1