java操作Linux系统配置-备份

大家好：

最近在做一些Java操作Linux的配置功能。目前功能未测试，只做自己的备份处理。备份下实现类。

package com.yltd.sams.service.settings.general.impl;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.LineNumberReader;
import java.net.Inet6Address;
import java.net.InetAddress;
import java.net.InterfaceAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;
import java.util.List;
import java.util.Map;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.yltd.sams.service.settings.general.NetworkSettingsService;
import com.yltd.sams.service.shell.ShellService;

import lombok.extern.slf4j.Slf4j;

/**
 * 系统设置 > 通用设置-网络设置
 * @author zhangyixin
 * @date 2020/04/13
 */

@Slf4j
@Service
public class NetworkSettingsServiceImpl implements NetworkSettingsService {
	
	@Autowired
	private ShellService  shellService;

	 /**
     * 获取Linux下的IP地址-ipv4
     *
     * @return IP地址
     * @throws SocketException
     */
	@Override
	public String getLinuxLocalIp() throws SocketException {
        String ip = "";
        try {
            for (Enumeration en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) {
                NetworkInterface intf = en.nextElement();
                String name = intf.getName();
                if (!name.contains("docker") && !name.contains("lo")) {
                    for (Enumeration enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) {
                        InetAddress inetAddress = enumIpAddr.nextElement();
                        if (!inetAddress.isLoopbackAddress()) {
                            String ipaddress = inetAddress.getHostAddress().toString();
                            if (!ipaddress.contains("::") && !ipaddress.contains("0:0:") && !ipaddress.contains("fe80")) {
                                ip = ipaddress;
                                log.info("============================" +ip);
                            }
                        }
                    }
                }
            }
        } catch (SocketException ex) {
        	log.info("============================");
            ip = "127.0.0.1";
            ex.printStackTrace();
        }
        System.out.println("IP:"+ip);
        return ip;
    }
	/**
	 * 获取Linux下的IP地址-ipv6
	 * @return
	 */
	@Override
	public  String getLocalIPv6Address() throws IOException {
	    InetAddress inetAddress = null;
	    Enumeration networkInterfaces = NetworkInterface
	        .getNetworkInterfaces();
	    outer: 
	    while (networkInterfaces.hasMoreElements()) {
	        Enumeration inetAds = networkInterfaces.nextElement()
		    .getInetAddresses();
	        while (inetAds.hasMoreElements()) {
	            inetAddress = inetAds.nextElement();
	            //Check if it's ipv6 address and reserved address
	            if (inetAddress instanceof Inet6Address 
	                && !isReservedAddr(inetAddress)) {
	                break outer;
	            }
	        }
	    }

	    String ipAddr = inetAddress.getHostAddress();
	    // Filter network card No
	    int index = ipAddr.indexOf('%');
	    if (index > 0) {
	        ipAddr = ipAddr.substring(0, index);
	    }

	    return ipAddr;
	}
	/**
	 * 判断Linux下的IP地址-ipv6 是否正确
	 * @param inetAddr
	 * @return
	 */
	private  boolean isReservedAddr(InetAddress inetAddr) {
	    if (inetAddr.isAnyLocalAddress() || inetAddr.isLinkLocalAddress()
	        || inetAddr.isLoopbackAddress()) {
	        return true;
	    }
	    return false;
	}
	/**
	 * 获取Linux本地-子网掩码
	 * @return
	 */
	@Override
	public String getLinuxLocalNi() throws SocketException {
		 InetAddress ip = null;
	     NetworkInterface ni = null;
	     String net ="";
	        try {
	            ip = InetAddress.getLocalHost();
            	 ni = NetworkInterface.getByInetAddress(ip);// 搜索绑定了指定IP地址的网络接口
            	 
            	 List list = ni.getInterfaceAddresses();// 获取此网络接口的全部或部分
                 // InterfaceAddresses
                 // 所组成的列表
				if (list.size() > 0) {
					int mask = list.get(0).getNetworkPrefixLength(); // 子网掩码的二进制1的个数
					StringBuilder maskStr = new StringBuilder();
					int[] maskIp = new int[4];
					for (int i = 0; i < maskIp.length; i++) {
						maskIp[i] = (mask >= 8) ? 255 : (mask > 0 ? (mask & 0xff) : 0);
						mask -= 8;
						maskStr.append(maskIp[i]);
						if (i < maskIp.length - 1) {
							maskStr.append(".");
						}
					}
					System.out.println("SubnetMask:" + maskStr);
					net = maskStr.toString();
				}
	        } catch (Exception e) {
	            e.printStackTrace();
	        }
	       
	       
			return net;
	    }
	/**
	 * 获取Linux本地-网关
	 * @return
	 */
	@Override
	public String getgateway() throws SocketException {
        String[] cmd = new String[] { "/bin/sh","-c", "route | grep -P \"^default.*eth0$\" | awk '{print $2}'" };
        String gateway = null;
        Process process;  
        try {
            process = Runtime.getRuntime().exec(cmd);
            InputStreamReader r = new InputStreamReader(process.getInputStream());  
            LineNumberReader returnData = new LineNumberReader(r);  
            gateway = returnData.readLine();
            System.out.println("网关"+gateway);  
            log.info("============================" +gateway);
        } catch (IOException ex) {
        	log.info("============================");
            ex.printStackTrace();
        }
 
        return gateway;
    }
	
	/**
	 * 更新Linux下的IP地址-ipv4
	 */
	@Override
	public String updateIPV4(Map map) throws IOException {
		String flage ="";
		 try {
	            Runtime.getRuntime().exec("mv /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-eth0_bak");
	            String IPADDR = "IPADDR="+map.get("IPv4")+"\n"; //ip地址
	            String NETMASK = "NETMASK="+map.get("IPv4Net")+"\n"; //子网掩码
	            String NETWORK="NETWORK="+map.get("IPv4Gateway")+"\n";//网关地址
	            BufferedReader reader = new BufferedReader(new FileReader("/etc/sysconfig/network-scripts/ifcfg-eth0_bak"));
	            BufferedWriter in = new BufferedWriter(new FileWriter(new File("/etc/sysconfig/network-scripts/ifcfg-eth0")));
	            String line=null;
	            boolean identify_ip = false;
				boolean identify_ma = false;
				boolean identify_wo = false;
	            while ((line=reader.readLine())!=null) {
	                if(line!=null && line.length()>0 && line.startsWith("IPADDR=")){
	                    in.write(IPADDR);
	                    identify_ip=true;
	                }else if(line!=null && line.length()>0 && line.startsWith("NETMASK=")){
	                    in.write(NETMASK);
	                    identify_ma=true;
	                }else if(line!=null && line.length()>0 && line.startsWith("NETWORK=")){
	                	in.write(NETWORK);
	                	identify_wo=true;
	                }else{
	                	in.write(line);
	                }
	            }
	            if(!identify_ip &&!identify_ma &&!identify_wo){
	            	in.write(IPADDR);
	            	in.write(NETMASK);
	            	in.write(NETWORK);
	            }
	            //关闭流，不可以少，否则数据在缓存，没有实际写入
	            reader.close();
	            in.close();
	        } catch (Exception e) {
	            e.printStackTrace();
	        }
		return flage;
	}
	/**
	 * 获取Linux下的IP地址-ipv6
	 * @return
	 */
	@Override
	public String updateIPV6(Map map) throws IOException {
		String flage ="";
		try {
			//查询是否存在 - 打开/关闭网络配置
			Runtime.getRuntime().exec("mv /etc/sysconfig/network  /etc/sysconfig/network_bak");
			String NETWORKING_IPV6 = "NETWORKING_IPV6=yes";//打开IPv6
	        String IPV6_AUTOCONF = "IPV6_AUTOCONF=no";//不自动获取地址，即：设置"no”
			BufferedReader reader = new BufferedReader(new FileReader("/etc/sysconfig/network_bak"));
			BufferedWriter in = new BufferedWriter(new FileWriter(new File("/etc/sysconfig/network")));
			String line=null;
			boolean identify = false;
			boolean identifying = false;
			while ((line=reader.readLine())!=null) {
				if(line!=null && line.length()>0 && line.startsWith("NETWORKING_IPV6")){
					in.write(NETWORKING_IPV6);
					identify = true;
				}else if(line!=null && line.length()>0 && line.startsWith("IPV6_AUTOCONF")){
					in.write(IPV6_AUTOCONF);
					identifying = true;
				}else{
					in.write(line);
				}
			}
			if(!identify &&!identifying){//如果未查询到已存在的，就添加相关数据
				in.write(NETWORKING_IPV6); //写入打开IPv6
				in.write(IPV6_AUTOCONF);//写入不自动获取地址，即：设置"no”
			}
			//关闭流，不可以少，否则数据在缓存，没有实际写入
			reader.close();
			in.close();
			
			//配置IP/IPv6地址，网关等
			Runtime.getRuntime().exec("mv  /etc/sysconfig/network-scripts/ifcfg-eth0   /etc/sysconfig/network-scripts/ifcfg-eth0_bak");
			String IPV6ADDR = "IPV6INIT=yes\nIPV6ADDR="+map.get("IPv6")+"\n";//配置IPv6地址
			String IPV6_DEFAULTGW = "IPV6_DEFAULTGW="+map.get("IPv6Gateway")+"\n";//配置IPv6网关
			BufferedReader readerFile = new BufferedReader(new FileReader(" /etc/sysconfig/network-scripts/ifcfg-eth0_bak"));
			BufferedWriter inFile = new BufferedWriter(new FileWriter(new File(" /etc/sysconfig/network-scripts/ifcfg-eth0")));
			String lineFile=null;
			boolean identifyFile = false;
			boolean identifyingLile = false;
			while ((lineFile=readerFile.readLine())!=null) {
				if(lineFile!=null && lineFile.length()>0 && lineFile.startsWith("IPV6ADDR")){
					inFile.write(IPV6ADDR);
					identify = true;
				}else if(lineFile!=null && lineFile.length()>0 && lineFile.startsWith("IPV6_DEFAULTGW")){
					inFile.write(IPV6_DEFAULTGW);
					identifying = true;
				}else{
					inFile.write(lineFile);
				}
			}
			if(!identifyFile &&!identifyingLile){//如果未查询到已存在的，就添加相关数据
				inFile.write(IPV6ADDR); //写入配置IPv6地址
				inFile.write(IPV6_DEFAULTGW);//写入配置IPv6网关
			}
			//关闭流，不可以少，否则数据在缓存，没有实际写入
			readerFile.close();
			inFile.close();
			//重启服务
			Runtime.getRuntime().exec("service network restart");
		} catch (Exception e) {
			e.printStackTrace();
		}
		return flage;
	}
	
	//=====================================查询系统已经运行的 时间  的实现================
	 /**
     * 获取linux命令执行的结果,cat 之类
     * @param cmd
     * @return
     */
    public  String getCmdResult(String cmd) {
 
        String result = "";
        try {
 
            Process process = Runtime.getRuntime().exec(cmd);
            InputStreamReader ir = new InputStreamReader(process.getInputStream());
            LineNumberReader input = new LineNumberReader(ir);
            String line;
            while ((line = input.readLine()) != null){
                result=line;
            }
        }
        catch (java.io.IOException e) {
        	log.info("============================"+e);
            System.err.println("IOException " + e.getMessage());
        }
        return result;
    }
 
    /**
     * 返回运行时间:天数+小时
     * @return
     */
    public  String getUptime(String str){
 
        String time=null;
        if(str.contains(",")){
            String [] strArr=str.split(",");
 
            if(strArr.length>2){
                int hms=0;
                String day="";
                int hours=0;
                if(str.contains("days")){
 
                    //截取到天
                    day=strArr[0].substring(strArr[0].indexOf("up")+2,strArr[0].indexOf("days")).trim();
                    //时分秒的秒数
                    hms=Integer.parseInt(getHms(strArr[1].replace("min","").trim()));
                    //将秒数转换成小时数
                    hours  = (hms % ( 60 * 60 * 24)) / (60 * 60);
                }else if(str.contains("day")){
                    //截取到天
                    day=strArr[0].substring(strArr[0].indexOf("up")+2,strArr[0].indexOf("day")).trim();
                    //时分秒的秒数
                    hms=Integer.parseInt(getHms(strArr[1].replace("min","").trim()));
                    //将秒数转换成小时数
                    hours  = (hms % ( 60 * 60 * 24)) / (60 * 60);
                }else{
 
                    String hmsStr=strArr[0].substring(strArr[0].indexOf("up")+2);
                    hms=Integer.parseInt(getHms(hmsStr.replace("min","").trim()));
                    //将秒数转换成小时数
                    hours  = (hms % ( 60 * 60 * 24)) / (60 * 60);
                }
                time= day+"天"+hours+"个小时";
            }
        }
        return time;
    }
    /**
     * 返回运行时间的秒数
     * @return
     */
    public String getUptimeSecond(String str){
 
        String time=null;
        if(str.contains(",")){
            String [] strArr=str.split(",");
 
            if(strArr.length>2){
                int hms=0;
                int days=0;
 
                if(str.contains("days")){
 
                    //截取到天
                    String day=strArr[0].substring(strArr[0].indexOf("up")+2,strArr[0].indexOf("days")).trim();
                    //天的秒数
                    days=Integer.parseInt(day) * 24 * 3600;
                    //时分秒的秒数
                    hms=Integer.parseInt(getHms(strArr[1].replace("min","").trim()));
                }
                else if(str.contains("day")){
                    //截取到天
                    String day=strArr[0].substring(strArr[0].indexOf("up")+2,strArr[0].indexOf("day")).trim();
                    //天的秒数
                    days=Integer.parseInt(day) * 24 * 3600;
                    //时分秒的秒数
                    hms=Integer.parseInt(getHms(strArr[1].replace("min","").trim()));
                }
                else{
 
                    String hmsStr=strArr[0].substring(strArr[0].indexOf("up")+2);
                    hms=Integer.parseInt(getHms(hmsStr.replace("min","").trim()));
                }
 
                Integer totalTime=days+hms;
                time=totalTime.toString();
            }
        }
        return time;
    }
    /**
     * 获取中间字段的秒数
     * @param str
     * @return
     */
    public  String getHms(String str){
 
        String result=null;
        Integer hms=0;
        if(str.contains(":")){
 
            String [] hmsArr=str.split("\\:");
 
            int length=hmsArr.length;
 
            switch (length){
                //只有秒
                case 1:hms+=Integer.parseInt(hmsArr[0]);
                    break;
                //时分
                case 2:hms+=(Integer.parseInt(hmsArr[0]) * 3600 + Integer.parseInt(hmsArr[1]) *60);
                    break;
                //时分秒
                case 3:hms+=(Integer.parseInt(hmsArr[0]) * 3600 + Integer.parseInt(hmsArr[1]) *60 +Integer.parseInt(hmsArr[2]));
                    break;
            }
        }
        else{
            //不包含： 只能是分
            hms+=Integer.parseInt(str) * 60;
        }
        if(hms>0){
            result=hms.toString();
        }
        return result;
    }
    
    /**
     * 获取运行时间
     * @return
     */
    @Override
    public  String getRouterUptime(){
        return getUptime(getCmdResult("uptime"));
    }
    /**
     * 获取路由表list
     * @return
     * @throws Exception 
     */
	@Override
	public String getRoutList() throws Exception {
		return shellService.execShell("netstat -rn");
	}
	
	 /**
     * 删除指定的路由表
     * -net:目标地址是一个网络。
     * netmask:当添加一个网络路由时，需要使用网络掩码。
     * gw:路由数据包通过网关。注意，你指定的网关必须能够达到。网关，又称下一跳路由器
     * @return
     * @throws Exception 
     */
	@Override
    public  String delectRout(Map map) throws Exception{
		//route del -net 192.168.9.112 netmask 1.0.0.0 gw 1.1.1.1
		String sentence="route del -net "+map.get("destinationAddress")+" netmask "+map.get("netMask")+" gw "+map.get("nextJump");
		return shellService.execShell(sentence);
    	
    }
	/**
	 * 添加指定的路由表
	 * -net:目标地址是一个网络。
	 * netmask:当添加一个网络路由时，需要使用网络掩码。
	 * gw:路由数据包通过网关。注意，你指定的网关必须能够达到。网关，又称下一跳路由器
	 * @return
	 * @throws Exception 
	 */
	@Override
	public  String addRout(Map map) throws Exception{
		//route del -net 192.168.9.112 netmask 1.0.0.0 gw 1.1.1.1
		String sentence="route add -net "+map.get("destinationAddress")+" netmask "+map.get("netMask")+" gw "+map.get("nextJump");
		return shellService.execShell(sentence);
		
	}
	/**
	 * 查询dns
	 * cat /etc/resolv.conf
	 */
	@Override
	public String getDNS(Map map) throws Exception {
		return shellService.execShell("cat /etc/resolv.conf");
	}
}

package com.yltd.sams.service.shell.impl;

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

import org.springframework.stereotype.Service;

import com.yltd.sams.service.shell.ShellService;

@Service
public class ShellServiceImpl implements ShellService{

	@Override
	public String execShell(String cmdstring) throws Exception{
		Process proc = Runtime.getRuntime().exec(cmdstring);
		// 注意下面的操作
		String ls_1;
		String ss = "";
		BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(proc.getInputStream()));
		while ((ls_1 = bufferedReader.readLine()) != null) {
			if (!"".equals(ss))
				ss += "\n";
			ss += ls_1;
		}
		bufferedReader.close();
		proc.waitFor();
		return ss;
	}
	
	@Override
	public String uptime() throws Exception{
		//08:34:29 up 21 days,  5:46,  1 user,  load average: 0.06, 0.04, 0.00
		String cmdRet = execShell("uptime");
		//TODO: 处理命令返回情况
		return cmdRet;
	}
	
	@Override
	public String shutdown() throws Exception{
		return execShell("shutdown -h now");
	}
	
	@Override
	public String reboot() throws Exception{
		return execShell("reboot");
	}
}