Java獲取應用的的IP地址和啓動端口

一、說明：Weblogic親測可用 Tomcat未測。

import javax.management.MBeanServer;
import javax.management.ObjectName;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.servlet.http.HttpServletRequest;

/**
 * 
 * @ClassName:NetworkUtil
 * @Description:獲取客戶端信息的工具
 * @author: Ming
 * @createdate:2019-1-7 下午2:23:15
 * @version V1.0
 * @Copyright: 2019 www.****.com Inc. All rights reserved.
 * 
 */
public final class NetworkUtil {
	public static String getIPAddress(HttpServletRequest request) {
		String ip = null;

		// X-Forwarded-For：Squid 服務代理
		String ipAddresses = request.getHeader("X-Forwarded-For");

		if (ipAddresses == null || ipAddresses.length() == 0
				|| "unknown".equalsIgnoreCase(ipAddresses)) {
			// Proxy-Client-IP：apache 服務代理
			ipAddresses = request.getHeader("Proxy-Client-IP");
		}

		if (ipAddresses == null || ipAddresses.length() == 0
				|| "unknown".equalsIgnoreCase(ipAddresses)) {
			// WL-Proxy-Client-IP：weblogic 服務代理
			ipAddresses = request.getHeader("WL-Proxy-Client-IP");
		}

		if (ipAddresses == null || ipAddresses.length() == 0
				|| "unknown".equalsIgnoreCase(ipAddresses)) {
			// HTTP_CLIENT_IP：有些代理服務器
			ipAddresses = request.getHeader("HTTP_CLIENT_IP");
		}

		if (ipAddresses == null || ipAddresses.length() == 0
				|| "unknown".equalsIgnoreCase(ipAddresses)) {
			// X-Real-IP：nginx服務代理
			ipAddresses = request.getHeader("X-Real-IP");
		}

		// 有些網絡通過多層代理，那麼獲取到的ip就會有多個，一般都是通過逗號（,）分割開來，並且第一個ip爲客戶端的真實IP
		if (ipAddresses != null && ipAddresses.length() != 0) {
			ip = ipAddresses.split(",")[0];
		}

		// 還是不能獲取到，最後再通過request.getRemoteAddr();獲取
		if (ip == null || ip.length() == 0
				|| "unknown".equalsIgnoreCase(ipAddresses)) {
			ip = request.getRemoteAddr();
		}
		return ip;
	}

	/**
	 * 
	 * @Title: getServerIpAndPort
	 * @Description:獲取應用的IP地址和端口
	 * @return 127.0.0.1:7001
	 * 
	 */
	public static String getServerIpAndPort() {
		String listenAddr = null;
		String port = null;
		try {
			Context ctx = new InitialContext();
			MBeanServer tMBeanServer = (MBeanServer) ctx
					.lookup("java:comp/env/jmx/runtime");
			ObjectName tObjectName = new ObjectName(
					"com.bea:Name=RuntimeService,Type=weblogic.management.mbeanservers.runtime.RuntimeServiceMBean");
			ObjectName serverrt = (ObjectName) tMBeanServer.getAttribute(
					tObjectName, "ServerRuntime");
			port = String.valueOf(tMBeanServer.getAttribute(serverrt,
					"ListenPort"));
			listenAddr = (String) tMBeanServer.getAttribute(serverrt,
					"ListenAddress");
			String[] tempAddr = listenAddr.split("/");
			if (tempAddr.length == 1) {
				listenAddr = tempAddr[0];
			} else if (tempAddr[tempAddr.length - 1].trim().length() != 0) {
				listenAddr = tempAddr[tempAddr.length - 1];
			} else if (tempAddr.length > 2) {
				listenAddr = tempAddr[tempAddr.length - 2];
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		// 防止爲空導致後續請求失敗
		if (listenAddr.isEmpty()) {
			listenAddr = "127.0.0.1";
		}
		if (port.isEmpty()) {
			port = "7001";
		}
		return listenAddr + ":" + port;
	}
}