使用到Process和Runtime两个类,返回值通过Process类的getInputStream()方法获取
- package ark;
- import java.io.BufferedReader;
- import java.io.IOException;
- import java.io.InputStreamReader;
- import java.util.ArrayList;
- import java.util.List;
- public class ReadCmdLine {
- public static void main(String args[]) {
- Process process = null;
- List<String> processList = new ArrayList<String>();
- try {
- process = Runtime.getRuntime().exec("ps -aux");
- BufferedReader input = new BufferedReader(new InputStreamReader(process.getInputStream()));
- String line = "";
- while ((line = input.readLine()) != null) {
- processList.add(line);
- }
- input.close();
- } catch (IOException e) {
- e.printStackTrace();
- }
- for (String line : processList) {
- System.out.println(line);
- }
- }
- }
调用shell脚本,判断是否正常执行,如果正常结束,Process的waitFor()方法返回0
- public static void callShell(String shellString) {
- try {
- Process process = Runtime.getRuntime().exec(shellString);
- int exitValue = process.waitFor();
- if (0 != exitValue) {
- log.error("call shell failed. error code is :" + exitValue);
- }
- } catch (Throwable e) {
- log.error("call shell failed. " + e);
- }
- }