本篇内容介绍了“怎么在java中执行sudo 命令”的有关知识,在实际案例的操作过程中,不少人都会遇到这样的困境,接下来就让小编带领大家学习一下如何处理这些情况吧!希望大家仔细阅读,能够学有所成!
* 1. 修改/etc/sudoers文件,在其中添加一行: * username ALL=(ALL) NOPASSWD:ALL * 其中,"username"是需要运行这个程序的用户名。
/bin/bash -c echo password |sudo -S command
Shell(JSCH)工具类:
package cn.bywin.cbvsp.common.utils; import cn.bywin.cbvsp.DAL.BO.po.MyUserInfo; import com.jcraft.jsch.*; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.ArrayList; /** * @author linbin * @create 2019-03-19 10:06 */ public class Shell { //远程主机的ip地址 private String ip; //远程主机登录用户名 private String username; //远程主机的登录密码 private String password; //设置ssh连接的远程端口 public static final int DEFAULT_SSH_PORT = 22; //保存输出内容的容器 private ArrayList<String> stdout; public Shell() { } /** * 初始化登录信息 * * @param ip * @param username * @param password */ public Shell(final String ip, final String username, final String password) { this.ip = ip; this.username = username; this.password = password; stdout = new ArrayList<String>(); } /** * 执行shell命令 * * @param command * @return */ //原本是 execute(final String command) public int execute(String command) { int returnCode = 0; JSch jsch = new JSch(); MyUserInfo userInfo = new MyUserInfo(); try { //创建session并且打开连接,因为创建session之后要主动打开连接 Session session = jsch.getSession(username, ip, DEFAULT_SSH_PORT); session.setPassword(password); session.setUserInfo(userInfo); session.connect(); //打开通道,设置通道类型,和执行的命令 Channel channel = session.openChannel("exec"); ChannelExec channelExec = (ChannelExec) channel; channelExec.setCommand(command); channelExec.setInputStream(null); BufferedReader input = new BufferedReader(new InputStreamReader (channelExec.getInputStream())); channelExec.connect(); System.out.println("The remote command is :" + command); //接收远程服务器执行命令的结果 String line; while ((line = input.readLine()) != null) { stdout.add(line); } input.close(); // 得到returnCode if (channelExec.isClosed()) { returnCode = channelExec.getExitStatus(); // 关闭通道 channelExec.disconnect(); //关闭session session.disconnect(); } } catch (JSchException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } return returnCode; } public static ChannelExec getCommandResult(Session session, String command) throws JSchException, IOException { ChannelExec channelExec = (ChannelExec) session.openChannel("exec"); channelExec.setCommand(command); channelExec.setInputStream(null); channelExec.setErrStream(System.err); channelExec.connect(); /*if (null != session) { session.disconnect(); }*/ return channelExec; } /** * get stdout * * @return */ public ArrayList<String> getStandardOutput() { return stdout; } }
执行代码:
public static void main(String[] args) { Shell shell = new Shell("192.168.161.152","root","linbinbhs7"); shell.execute("/bin/bash -c echo linbinbhs7 |sudo -S ls"); ArrayList<String> graphicsCardNames = shell.getStandardOutput(); graphicsCardNames.forEach(e->{ System.out.println(e); }); }
删除指定时间的文件
public class TestShell { public static void main(String[] args) { Shell shell = new Shell("192.168.96.136","developer","de183!!!"); shell.execute("/bin/bash -c echo de183!!! |sudo -S find /home/developer/temp -type f -mmin +1 -exec rm -rfv {} \\; > /home/developer/temp/nohup.out;"); ArrayList<String> graphicsCardNames = shell.getStandardOutput(); graphicsCardNames.forEach(System.out::println); } }
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