Need to execute shell script from webapp and display console output in page

Question

I am looking for java examples or library that will help me integrate this into a Struts2/Spring application. Many build systems such as Luntbuild or Hudson have this functiona

Answer 1

If I understand what you are trying to do, this is one way in Java. This executes the ls command and then captures the shell output and writes it back to System.out.

public class TestShell {
    public static void main(String[] args)
    {
        try
        {
                String cmd = "ls\n";
                Process p = Runtime.getRuntime().exec(cmd);
                p.waitFor();
                BufferedReader r = new BufferedReader(new InputStreamReader(p.getInputStream()));
                while(r.ready()) {
                    System.out.println(r.readLine());
                }

        }
        catch (Throwable t)
                {
                t.printStackTrace();
        }
    }
}