如何从Java运行命令行或执行外部应用程序：
import java.io.*;public class Main { public static void main(String args[]) { try { Runtime rt = Runtime.getRuntime(); //Process pr = rt.exec("cmd /c dir"); Process pr = rt.exec("c:\helloworld.exe"); BufferedReader input = new BufferedReader(new InputStreamReader(pr.getInputStream())); String line=null; while((line=input.readLine()) != null) { System.out.println(line); } int exitVal = pr.waitFor(); System.out.println("Exited with error pre "+exitVal); } catch(Exception e) { System.out.println(e.toString()); e.printStackTrace(); } }}
