public void runProcessDemo1 {    try {        Process process = Runtime.getRuntime().exec("ipconfig /all");        InputStream is = process.getInputStream();        InputStreamReader isr =new InputStreamReader(is, "gbk");        BufferedReader br = new BufferedReader(isr);        String line;    while ((line = br.readLine()) != null) {      System.out.println(line);    }    int exitCode = process.waitFor();    System.out.println(exitCode);  } catch (IOException | InterruptedException e) {    e.printStackTrace();  }}

public void runProcessDemo2 {    ProcessBuilder processBuilder = new ProcessBuilder();    processBuilder.command("ipconfig","/all");    //将标准输入流和错误输入流合并，通过标准输入流读取信息    processBuilder.redirectErrorStream(true);    try {        //启动进程        Process start = processBuilder.start();        //获取输入流        InputStream inputStream = start.getInputStream();        //转成字符输入流        InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "gbk");        int len = -1;        char[] c = new char[1024];        StringBuffer outputString = new StringBuffer();        //读取进程输入流中的内容        while ((len = inputStreamReader.read(c)) != -1) {            String s = new String(c, 0, len);            outputString.append(s);            System.out.print(s);        }        inputStream.close();    } catch (IOException e) {        e.printStackTrace();    }}

public void runProcessDemo3 throws IOException {    ProcessBuilder processBuilder = new ProcessBuilder("cmd","/c","dir");    processBuilder.directory(new File("D:/"));    Process process = processBuilder.start();    BufferedReader br = new BufferedReader(new InputStreamReader(process.getInputStream(), "gbk"));    String line;    while ((line = br.readLine()) != null) {        System.out.println(line);    }}

以上均是windows平台，如果是Linux，请使用相应命令。