我試圖創建一個PHP腳本,它確定服務器(承載下面列出的Java程序的計算機)是否正在運行,如果是,則PHP功能應返回true,否則返回true它返回false。在PHP和Java中使用套接字
這裏是服務器:
package darestium.minecraft.server;
import java.io.BufferedReader;
import java.net.*;
import java.io.*;
public class Server {
private static ServerSocket socket;
private static Socket connection;
private static String command = new String();
private static String responseStr = new String();;
private static int port = 4343;
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();
response.writeBytes(responseStr);
response.flush();
//response.close();
System.out.println("Running");
}
} catch (IOException e) {
System.out.println("Fail!: " + e.toString());
}
System.out.println("Closing...");
}
}
這裏是客戶端:
<?
function isRunning() {
$address = 'darestium.dyndns-free.com';
$port = 4343;
$socket = socket_create(AF_INET, SOCK_STREAM, getprotobyname('tcp'));
$message = 'loolololol';
try {
socket_connect($socket, $address, $port);
$status = socket_sendto($socket, $message, strlen($message), MSG_EOF, $address, $port);
if ($status != false) {
return true;
}
return false;
} catch (Exception $e) {
return false;
}
}
?>
以下是顯示了PHP頁面上的回聲出函數的結果的錯誤信息像這樣:
include('server.php');
echo isRunning();
然後,錯誤消息:
Warning: socket_connect() [function.socket-connect]: unable to connect [0]: No connection could be made because the target machine actively refused it. in C:\Users\darestium\Documents\Portables\xampp\htdocs\darestium\minecraftserver.php on line 9
Notice: Use of undefined constant MSG_EOF - assumed 'MSG_EOF' in C:\Users\darestium\Documents\Portables\xampp\htdocs\darestium\minecraftserver.php on line 11
Warning: socket_sendto() expects parameter 4 to be long, string given in C:\Users\darestium\Documents\Portables\xampp\htdocs\darestium\minecraftserver.php on line 11
我想知道如何解決這個問題。此外,我希望能夠發送消息到服務器,任何想法我怎麼能做到這一點?我基於此Simple Java TCP Server and PHP Client Problems
注意:我是非常新的套接字和服務器/客戶端通信。
編輯:
@VideanuAdrian OK,只是端口轉發端口4343,它不再顯示了第一個錯誤,但功能似乎總是返回false,最後兩個錯誤仍然顯示。
運行java部分的機器上是否有防火牆?或者如果Java部件位於路由器後面,您是否有端口轉發設置? – 2012-04-25 05:34:03
@VideanuAdrian好的,只是端口轉發端口4343,它不再顯示與第一個錯誤,但該函數似乎總是返回false,最後兩個錯誤仍然顯示。 – Darestium 2012-04-25 05:49:15
哦,另外,錯誤(第一個)在服務器應用程序關閉時再次顯示,並且該函數仍然返回false。 – Darestium 2012-04-25 06:06:33