引言
nginx做反向代理時，默認的配置后端獲取到的Ip地址都來自于nginx，用request.getRemoteAddr();獲取到的是nginx的ip地址,而不是用戶的真實ip.
1.修改Nginx配置:
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server { listen 80; server_name jenkins.local.com; location / { proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_pass http://192.168.10.204:8899; } error_page 500 502 503 504 /50x.html; location = /50x.html { root html; index index.html index.htm index.jsp index.action default.html; } proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;} |
在原來的基礎配置上加上后三行配置，就可以使用request.getHeader(“x-forwarded-for”)來獲取用戶真實的Ip地址了
2.java獲取客戶端Ip
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package com.zimax.cqyf.admin.util;import javax.servlet.http.HttpServletRequest;import java.net.InetAddress;import java.net.UnknownHostException; /** * http工具類 */public class HttpUtils { /** * 獲取真實的ip * @param request * @return * @throws UnknownHostException */ public static String getRealIp(HttpServletRequest request){ String ip; // 有的user可能使用代理，為處理用戶使用代理的情況，使用x-forwarded-for if (request.getHeader("x-forwarded-for") == null) { ip = request.getRemoteAddr(); } else { ip = request.getHeader("x-forwarded-for"); } if ("127.0.0.1".equals(ip)) { try { // 獲取本機真正的ip地址 ip = InetAddress.getLocalHost().getHostAddress(); }catch (Exception e){ e.printStackTrace(); } } return ip; } } |
附：一個ip工具類
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import javax.servlet.http.HttpServletRequest;/*** IP地址工具類* @author xudongdong**/public class IpUtil { /** * 私有化構造器 */ private IpUtil() { } /** * 獲取真實IP地址 * <p>使用getRealIP代替該方法</p> * @param request req * @return ip */ @Deprecated public static String getClinetIpByReq(HttpServletRequest request) { // 獲取客戶端ip地址 String clientIp = request.getHeader("x-forwarded-for"); if (clientIp == null || clientIp.length() == 0 || "unknown".equalsIgnoreCase(clientIp)) { clientIp = request.getHeader("Proxy-Client-IP"); } if (clientIp == null || clientIp.length() == 0 || "unknown".equalsIgnoreCase(clientIp)) { clientIp = request.getHeader("WL-Proxy-Client-IP"); } if (clientIp == null || clientIp.length() == 0 || "unknown".equalsIgnoreCase(clientIp)) { clientIp = request.getRemoteAddr(); } /* * 對于獲取到多ip的情況下，找到公網ip. */ String sIP = null; if (clientIp != null && !clientIp.contains("unknown") && clientIp.indexOf(",") > 0) { String[] ipsz = clientIp.split(","); for (String anIpsz : ipsz) { if (!isInnerIP(anIpsz.trim())) { sIP = anIpsz.trim(); break; } } /* * 如果多ip都是內網ip，則取第一個ip. */ if (null == sIP) { sIP = ipsz[0].trim(); } clientIp = sIP; } if (clientIp != null && clientIp.contains("unknown")){ clientIp =clientIp.replaceAll("unknown,", ""); clientIp = clientIp.trim(); } if ("".equals(clientIp) || null == clientIp){ clientIp = "127.0.0.1"; } return clientIp; } /** * 判斷IP是否是內網地址 * @param ipAddress ip地址 * @return 是否是內網地址 */ public static boolean isInnerIP(String ipAddress) { boolean isInnerIp; long ipNum = getIpNum(ipAddress); /** 私有IP：A類 10.0.0.0-10.255.255.255 B類 172.16.0.0-172.31.255.255 C類 192.168.0.0-192.168.255.255 當然，還有127這個網段是環回地址 **/ long aBegin = getIpNum("10.0.0.0"); long aEnd = getIpNum("10.255.255.255"); long bBegin = getIpNum("172.16.0.0"); long bEnd = getIpNum("172.31.255.255"); long cBegin = getIpNum("192.168.0.0"); long cEnd = getIpNum("192.168.255.255"); isInnerIp = isInner(ipNum, aBegin, aEnd) || isInner(ipNum, bBegin, bEnd) || isInner(ipNum, cBegin, cEnd) || ipAddress.equals("127.0.0.1"); return isInnerIp; } private static long getIpNum(String ipAddress) { String[] ip = ipAddress.split("\\."); long a = Integer.parseInt(ip[0]); long b = Integer.parseInt(ip[1]); long c = Integer.parseInt(ip[2]); long d = Integer.parseInt(ip[3]); return a * 256 * 256 * 256 + b * 256 * 256 + c * 256 + d; } private static boolean isInner(long userIp, long begin, long end) { return (userIp >= begin) && (userIp <= end); } public static String getRealIP(HttpServletRequest request){ // 獲取客戶端ip地址 String clientIp = request.getHeader("x-forwarded-for"); if (clientIp == null || clientIp.length() == 0 || "unknown".equalsIgnoreCase(clientIp)) { clientIp = request.getRemoteAddr(); } String[] clientIps = clientIp.split(","); if(clientIps.length <= 1) return clientIp.trim(); // 判斷是否來自CDN if(isComefromCDN(request)){ if(clientIps.length>=2) return clientIps[clientIps.length-2].trim(); } return clientIps[clientIps.length-1].trim(); } private static boolean isComefromCDN(HttpServletRequest request) { String host = request.getHeader("host"); return host.contains("www.189.cn") ||host.contains("shouji.189.cn") || host.contains( "image2.chinatelecom-ec.com") || host.contains( "image1.chinatelecom-ec.com"); }} |
總結
到此這篇關于基于nginx反向代理獲取用戶真實Ip地址的文章就介紹到這了,更多相關nginx獲取用戶真實Ip內容請搜索服務器之家以前的文章或繼續瀏覽下面的相關文章希望大家以后多多支持服務器之家！
原文鏈接：https://blog.csdn.net/sll714827/article/details/123332269
