package org.ruoyi.chat.util;
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import jakarta.servlet.http.HttpServletRequest;
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import org.springframework.util.StringUtils;
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/**
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* @author WangLe
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*/
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public class IpUtil {
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public static String getClientIp(HttpServletRequest request) {
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String ip = null;
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// 获取 X-Forwarded-For 中的第一个非 unknown 的 IP
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String xForwardedFor = request.getHeader("X-Forwarded-For");
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if (StringUtils.hasLength(xForwardedFor) && !"unknown".equalsIgnoreCase(xForwardedFor)) {
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String[] ipAddresses = xForwardedFor.split(",");
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for (String ipAddress : ipAddresses) {
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if (StringUtils.hasLength(ipAddress) && !"unknown".equalsIgnoreCase(ipAddress.trim())) {
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ip = ipAddress.trim();
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break;
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}
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}
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}
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// 如果 X-Forwarded-For 中没有找到,则依次尝试其他 header
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if (ip == null) {
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ip = request.getHeader("X-Real-IP");
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}
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if (ip == null || "unknown".equalsIgnoreCase(ip)) {
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ip = request.getHeader("Proxy-Client-IP");
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}
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if (ip == null || "unknown".equalsIgnoreCase(ip)) {
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ip = request.getHeader("WL-Proxy-Client-IP");
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}
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if (ip == null || "unknown".equalsIgnoreCase(ip)) {
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ip = request.getHeader("HTTP_CLIENT_IP");
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}
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if (ip == null || "unknown".equalsIgnoreCase(ip)) {
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ip = request.getHeader("HTTP_X_FORWARDED_FOR");
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}
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// 如果以上都没有获取到,则使用 RemoteAddr
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if (ip == null || "unknown".equalsIgnoreCase(ip)) {
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ip = request.getRemoteAddr();
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}
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return ip;
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}
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}
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