通过PHP Exec（）或类似函数启动Minecraft_Server.jar

Question

I'm trying to build a script that starts minecraft_server.jar (location: user directory / mineserver / minecraft_server.jar ).

I have PHP and Apache installed, and I'm trying trying to start the server JAR from /var/www/html/interface.php.

Via console, the server starts fine by running:

java -Xmx1024M -Xms1024M -jar mineserver/minecraft_server.jar nogui

... from the user directory. So in the interface.php file I have the following (note location listed above):

system('java -Xmx1024M -Xms1024M -jar /home/ec2-user/mineserver/minecraft_server.jar nogui', $retval);

But the server never starts after I visit the file. What am I doing wrong?

Thanks for any and all clues.

I want to say thank you for your help on Thanksgiving. While I haven't found the solution yet, I appreciate the efforts. Thanks again.

Answer 1

Have you checked the error log? It's at /var/log/httpd by default. If anything went wrong, it should be there. Otherwise, it could be starting wrong and I would recommend launching it in a screen so you can hop in and check on anything it's doing.

Install screen through whatever method your distribution uses, and then change the launch string to be:
screen -dmS "minecraft" java -Xmx1024M -Xms1024M -jar /home/ec2-user/mineserver/minecraft_server.jar nogui