package com.wgcloud.util;
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import com.wgcloud.controller.LoginController;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import javax.servlet.http.HttpServletRequest;
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import java.net.InetAddress;
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/**
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* @version v3.3
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* @ClassName:IpUtil.java
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* @author: http://www.wgstart.com
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* @date: 2021年12月19日
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* @Description: 获取请求IP
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* @Copyright: 2019-2021 wgcloud. All rights reserved.
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*/
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public class IpUtil {
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private static final String UNKNOWN = "unknown";
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private static final String LOCALHOST = "127.0.0.1";
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private static final String SEPARATOR = ",";
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private static final Logger logger = LoggerFactory.getLogger(LoginController.class);
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/**
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* 获取请求IP
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*
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* @param request
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* @return
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*/
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public static String getIpAddr(HttpServletRequest request) {
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String ipAddress;
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try {
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ipAddress = request.getHeader("x-forwarded-for");
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if (ipAddress == null || ipAddress.length() == 0 || UNKNOWN.equalsIgnoreCase(ipAddress)) {
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ipAddress = request.getHeader("Proxy-Client-IP");
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}
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if (ipAddress == null || ipAddress.length() == 0 || UNKNOWN.equalsIgnoreCase(ipAddress)) {
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ipAddress = request.getHeader("WL-Proxy-Client-IP");
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}
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if (ipAddress == null || ipAddress.length() == 0 || UNKNOWN.equalsIgnoreCase(ipAddress)) {
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ipAddress = request.getRemoteAddr();
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if (LOCALHOST.equals(ipAddress)) {
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InetAddress inet = InetAddress.getLocalHost();
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ipAddress = inet.getHostAddress();
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}
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}
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// 对于通过多个代理的情况，第一个IP为客户端真实IP,多个IP按照','分割
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// "***.***.***.***".length()
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if (ipAddress != null && ipAddress.length() > 15) {
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if (ipAddress.indexOf(SEPARATOR) > 0) {
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ipAddress = ipAddress.substring(0, ipAddress.indexOf(","));
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}
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}
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} catch (Exception e) {
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ipAddress = "";
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logger.error("获取登录请求IP错误", e);
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}
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return ipAddress;
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}
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}
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