ssh服务的开启和关闭

package com.kedacom.ics.utils;

import com.kedacom.ics.core.exception.BusinessException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.BufferedReader;
import java.io.InputStreamReader;


/**
 * ssh服务的开启和关闭
 * @author wangshuxuan
 * @date 2018/12/11 14:03
 */
public class SSHOperate {

    private static Logger logger = LoggerFactory.getLogger(SSHOperate.class);

    /**
     * 获取ssh状态
     */
    public static boolean sshStatus(){

        //ssh状态
        boolean bOpen = false;
        try {
            Runtime runtime = Runtime.getRuntime();
            //获取当前操作系统
            String systemName = System.getProperty("os.name").toLowerCase();
            //命令
            String strCmd = "";
            if (systemName.startsWith("win")) {
                //win下无ssh服务(仅作测试)
                strCmd = "cmd /c net start | findstr Redis";
            } else {
                strCmd = " service sshd status";
            }
            //Process执行外部命令
            BufferedReader bufferedReader = null;
            if (!strCmd.isEmpty()) {
                Process process = runtime.exec(strCmd);
                InputStreamReader inputStreamReader = new InputStreamReader(process.getInputStream(), "utf8");
                bufferedReader = new BufferedReader(inputStreamReader);
                process.waitFor();
            }
            if (bufferedReader != null) {
                String line;
                while ((line = bufferedReader.readLine()) != null) {
                    if (line.contains("active") && line.contains("running")) {
                        logger.info("获取ssh状态成功!");
                        bOpen = true;
                        break;
                    }
                }
            } else {
                logger.info("获取ssh状态失败!");
            }
        } catch (Exception e) {
            e.printStackTrace();
            throw new BusinessException("获取ssh状态失败!");
        }
        return bOpen;
    }

    /**
     * ssh开关
     * @param type
     */
    public static boolean sshChange(String type){

        //ssh设置结果
        boolean bSetting = false;
        try {
            Runtime runtime = Runtime.getRuntime();
            //获取当前操作系统
            String systemName = System.getProperty("os.name").toLowerCase();
            //命令
            String strCmd = "";
            if (systemName.startsWith("win")) {
                //win下无ssh服务(仅作测试)
                strCmd = "cmd /c pkgmgr /iu:”TelnetClient”";
            } else {
                if (type.equals("on")) {
                    strCmd = " service sshd start";
                } else {
                    strCmd = " service sshd stop";
                }
            }
            //Process执行外部命令
            if (!strCmd.isEmpty()) {
                Process process = runtime.exec(strCmd);
                process.waitFor();

                //判断设置的结果
                boolean bTmp = sshStatus();
                if ((type.equals("on") && bTmp) ||
                        (type.equals("off") && !bTmp)) {
                    bSetting = true;
                    logger.info("设置ssh成功！");
                } else {
                    logger.info("设置ssh失败！");
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
            throw new BusinessException("设置ssh失败！");
        }
        return bSetting;
    }

    public static void main(String[] args) throws Exception {
        //sshStatus();
        sshChange("on");
    }

}