50 lines
1.8 KiB
Java
50 lines
1.8 KiB
Java
package top.xinsin.utils;
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import javax.servlet.http.HttpServletRequest;
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import java.net.InetAddress;
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import java.net.UnknownHostException;
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/**
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* @author xinsin
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* Created On 2022/12/5 13:37
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* @version 1.0
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*/
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public class IpUtils {
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public static String getIpAddr(HttpServletRequest request) {
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String ipAddress = null;
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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 (ipAddress.equals("127.0.0.1")) {
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// 根据网卡取本机配置的IP
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try {
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ipAddress = InetAddress.getLocalHost().getHostAddress();
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} catch (UnknownHostException e) {
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e.printStackTrace();
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}
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}
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}
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// 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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if (ipAddress != null) {
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if (ipAddress.contains(",")) {
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return ipAddress.split(",")[0];
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} else {
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return ipAddress;
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}
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} else {
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return "";
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}
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} catch (Exception e) {
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e.printStackTrace();
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return "";
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}
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}
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}
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