网关用户真实ip获取

common/src/main/java/com/diagbot/util/HttpUtils.java

@@ -66,6 +66,9 @@ public class HttpUtils {
             if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
                 ip = request.getHeader("HTTP_X_FORWARDED_FOR");
             }
+            if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
+                ip = request.getHeader("X-Real-IP");
+            }
             if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
                 ip = request.getRemoteAddr();
             }

gateway-service/src/main/java/com/diagbot/config/redislimiter/SysKeyResolver.java

@@ -46,29 +46,34 @@ public class SysKeyResolver implements KeyResolver {
     public static String getIpAddress(ServerHttpRequest request) {
         HttpHeaders headers = request.getHeaders();
         String ip = headers.getFirst("x-forwarded-for");
-        if (ip != null && ip.length() != 0 && !"unknown".equalsIgnoreCase(ip)) {
-            // 多次反向代理后会有多个ip值，第一个ip才是真实ip
-            if (ip.indexOf(",") != -1) {
-                ip = ip.split(",")[0];
-            }
-        }
-        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
-            ip = headers.getFirst("Proxy-Client-IP");
-        }
-        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
-            ip = headers.getFirst("WL-Proxy-Client-IP");
-        }
-        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
-            ip = headers.getFirst("HTTP_CLIENT_IP");
-        }
-        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
-            ip = headers.getFirst("HTTP_X_FORWARDED_FOR");
-        }
         if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
-            ip = headers.getFirst("X-Real-IP");
-        }
-        if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
-            ip = request.getRemoteAddress().getAddress().getHostAddress();
+            if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
+                ip = headers.getFirst("Proxy-Client-IP");
+            }
+            if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
+                ip = headers.getFirst("WL-Proxy-Client-IP");
+            }
+            if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
+                ip = headers.getFirst("HTTP_CLIENT_IP");
+            }
+            if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
+                ip = headers.getFirst("HTTP_X_FORWARDED_FOR");
+            }
+            if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
+                ip = headers.getFirst("X-Real-IP");
+            }
+            if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
+                ip = request.getRemoteAddress().getAddress().getHostAddress();
+            }
+        } else if (ip.length() > 15) {
+            String[] ips = ip.split(",");
+            for (int index = 0; index < ips.length; index++) {
+                String strIp = (String) ips[index];
+                if (!("unknown".equalsIgnoreCase(strIp))) {
+                    ip = strIp;
+                    break;
+                }
+            }
         }
         return ip;
     }