ip获取工具类

ip获取工具类

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.servlet.http.HttpServletRequest;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.util.Enumeration;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**  
 * @Title: IPUtil
 * @Package com.ds.platform.base.util
 * @Description: 
 * @author ds
 * @date 2018/5/28
 */ 
public class IPUtil {
    private final static Logger logger = LoggerFactory.getLogger(IPUtil.class);
    public static final Pattern DB_URL_PATTERN = Pattern.compile("jdbc:mysql://(.*):([\\d]*)/(.*)\\?");
    /**
     * 获得远程用户真实IP地址
     * @param request
     * @return
     */
    public static String getClientIP(HttpServletRequest request) {
        String ip = request.getHeader("x-forwarded-for");
        if (isIpUnKnown(ip)) {
            ip = request.getHeader("Proxy-Client-IP");
        }
        if (isIpUnKnown(ip)) {
            ip = request.getHeader("WL-Proxy-Client-IP");
        }
        if (isIpUnKnown(ip)) {
            ip = request.getRemoteAddr();
        }
        return ip;
    }

    /**
     * 判断是否时unknown
     * @param ip
     * @return
     */
    private static boolean isIpUnKnown(String ip){
        return ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip);
    }

    /**
     * 获取客户端IP地址
     * @param request
     * @return
     */
    public static String getClientIpAddr(HttpServletRequest request) {
        String ip = request.getHeader("X-Forwarded-For");
        if(isIpUnKnown(ip)) {
            ip = request.getHeader("Proxy-Client-IP");
        }
        if(isIpUnKnown(ip)) {
            ip = request.getHeader("WL-Proxy-Client-IP");
        }
        if(isIpUnKnown(ip)) {
            ip = request.getHeader("HTTP_X_FORWARDED_FOR");
        }
        if(isIpUnKnown(ip)) {
            ip = request.getHeader("HTTP_X_FORWARDED");
        }
        if(isIpUnKnown(ip)) {
            ip = request.getHeader("HTTP_X_CLUSTER_CLIENT_IP");
        }
        if(isIpUnKnown(ip)) {
            ip = request.getHeader("HTTP_CLIENT_IP");
        }
        if(isIpUnKnown(ip)) {
            ip = request.getHeader("HTTP_FORWARDED_FOR");
        }
        if(isIpUnKnown(ip)) {
            ip = request.getHeader("HTTP_FORWARDED");
        }
        if(isIpUnKnown(ip)) {
            ip = request.getHeader("HTTP_VIA");
        }
        if(isIpUnKnown(ip)) {
            ip = request.getHeader("REMOTE_ADDR");
        }
        if(isIpUnKnown(ip)) {
            ip = request.getRemoteAddr();
        }
        return ip;
    }

    /**
     * 获取本机的IP 地址
     * @return
     * @throws Exception
     */
    public static String getLocalHostLANAddress() {
        try {
            InetAddress candidateAddress = null;
            // 遍历所有的网络接口
            for (Enumeration ifaces = NetworkInterface.getNetworkInterfaces(); ifaces.hasMoreElements(); ) {
                NetworkInterface iface = (NetworkInterface) ifaces.nextElement();
                // 在所有的接口下再遍历IP
                for (Enumeration inetAddrs = iface.getInetAddresses(); inetAddrs.hasMoreElements(); ) {
                    InetAddress inetAddr = (InetAddress) inetAddrs.nextElement();
                    if (!inetAddr.isLoopbackAddress()) {// 排除loopback类型地址
                        if (inetAddr.isSiteLocalAddress()) {
                            // 如果是site-local地址，就是它了
                            return inetAddr.getHostAddress();
                        } else if (candidateAddress == null) {
                            // site-local类型的地址未被发现，先记录候选地址
                            candidateAddress = inetAddr;
                        }
                    }
                }
            }
            if (candidateAddress != null) {
                return candidateAddress.getHostAddress();
            }
            // 如果没有发现 non-loopback地址.只能用最次选的方案
            InetAddress jdkSuppliedAddress = InetAddress.getLocalHost();
            return jdkSuppliedAddress.getHostAddress();
        } catch (Exception e) {
            logger.error("读取本机IP失败，原因：{}",e.getMessage());
        }
        return "";
    }

    /**
     * 根据mysql的url连接解析出IP 端口 和数据库名称
     * @param url
     * @return
     */
    public static DBConnInfo parseMysqlUrlIP(String url){
        DBConnInfo dbConnInfo = new DBConnInfo();
        Matcher matcher = DB_URL_PATTERN.matcher(url);
        while(matcher.find()){
            dbConnInfo.setIp(matcher.group(1));
            dbConnInfo.setPort(matcher.group(2));
            dbConnInfo.setDbName(matcher.group(3));
        }
        return dbConnInfo;
    }

    public static class DBConnInfo{
        private String ip;
        private String port;
        private String dbName;
        public DBConnInfo(){}
        public DBConnInfo(String ip, String port, String dbName) {
            this.ip = ip;
            this.port = port;
            this.dbName = dbName;
        }

        public String getIp() {
            return ip;
        }

        public void setIp(String ip) {
            this.ip = ip;
        }

        public String getPort() {
            return port;
        }

        public void setPort(String port) {
            this.port = port;
        }

        public String getDbName() {
            return dbName;
        }

        public void setDbName(String dbName) {
            this.dbName = dbName;
        }
    }
}