process两法用法（二）

package interview.process;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;public class ProcessBuilderDemo{public static void main(String[] args){// call("javac");call("cmd.exe /C dir"); // 不支持该方法}public static void call(String cmd){// Runtime rt = Runtime.getRuntime();Process pro = null;try{// pro = rt.exec(cmd);ProcessBuilder pb = new ProcessBuilder(cmd);pb.redirectErrorStream(true);pro = pb.start();// =============new StreamTool(pro.getInputStream()).start();// new StreamTool(pro.getErrorStream()).start();// ===========pro.waitFor();}catch (InterruptedException e){e.printStackTrace();}catch (IOException e){e.printStackTrace();}}private static class StreamTool extends Thread{BufferedReader br = null;public StreamTool(InputStream is){br = new BufferedReader(new InputStreamReader(is));}public void run(){String line = null;try{while ((line = br.readLine()) != null){System.out.println(line);}}catch (IOException e){e.printStackTrace();}}}}

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