How am I to execute a command in Java with parameters?
I've tried
Process p = Runtime.getRuntime().exec(new String[]{"php","/var/www/script.php -m 2"});
which doesn't work.
String[] options = new String[]{"option1", "option2"};
Runtime.getRuntime().exec("command", options);
This doesn't work as well, because the m parameter is not specified.
See if this works (sorry can't test it right now)
Runtime.getRuntime().exec(new String[]{"php","/var/www/script.php", "-m", "2"});
String per command; parameter or value. So "-m 2" might not work. This need to be "-m", "2"Use ProcessBuilder instead of Runtime#exec().
ProcessBuilder pb = new ProcessBuilder("php", "/var/www/script.php", "-m 2");
Process p = pb.start();
new ProcessBuilder("php", "/var/www/script.php", "-m", "2");The following should work fine.
Process p = Runtime.getRuntime().exec("php /var/www/script.php -m 2");
Below is java code for executing python script with java.
public class JavaCode {
public static void main(String[] args) throws IOException {
String lines = null;
ProcessBuilder builder = new ProcessBuilder("/home/env-scrapping/bin/python",
"/home/Scrapping/script.py", "arg1");
Process process = builder.start();
BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
while ((lines = reader.readLine())!=null) {
System.out.println("Line: " + lines);
}
}
}
First is virtual environment path
