java獲取當前服務（tomcat）的IP和端口

 最近遇到個需求，需要在代碼中獲取當前服務的內網ip和端口，廢話不多說，直接上代碼（都是Linux服務器，windows的沒試過，可能會有所區別）

//獲取內網ip
public static String getLocalIp() {
        try {
            for (Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces(); interfaces
                    .hasMoreElements();) {
                NetworkInterface networkInterface = interfaces.nextElement();
                if (networkInterface.isLoopback() || networkInterface.isVirtual() || !networkInterface.isUp()) {
                    continue;
                }
                Enumeration<InetAddress> addresses = networkInterface.getInetAddresses();
                if (addresses.hasMoreElements()) {
                    return addresses.nextElement().getHostAddress();
                }
            }
        }
        catch (SocketException e) {
            LoggerUtil.log(Level.INFO, "獲取ip出現異常:{}", e.getMessage());
        }
        return null;
    }

    // 獲取端口
    public static String getLocalPort() {
        try {
            MBeanServer server;
            if (MBeanServerFactory.findMBeanServer(null).size() > 0) {
                server = MBeanServerFactory.findMBeanServer(null).get(0);
            } else {
                return "";
            }
            Set<ObjectName> names = server.queryNames(new ObjectName("Catalina:type=Connector,*"),
                    Query.match(Query.attr("protocol"), Query.value("HTTP/1.1")));

            Iterator<ObjectName> iterator = names.iterator();
            if (iterator.hasNext()) {
                ObjectName name = iterator.next();
                return server.getAttribute(name, "port").toString();
            }
        }
        catch (Exception e) {
            LoggerUtil.log(Level.INFO, "獲取port出現異常:{}", e.getMessage());
        }
        return "";
    }

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