init

ruoyi-cai/src/main/java/com/ruoyi/cai/util/IpAddressUtil.java

@@ -0,0 +1,14 @@
+package com.ruoyi.cai.util;
+
+
+import cn.hutool.core.util.ReUtil;
+
+public class IpAddressUtil {
+
+    public static boolean isIp(String ip){
+        if(ip == null || ip.length() < 7 || ip.length() > 15){
+            return false;
+        }
+        return ReUtil.isMatch("([1-9]|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])(\\.(\\d|[1-9]\\d|1\\d{2}|2[0-4]\\d|25[0-5])){3}",ip);
+    }
+}