update

src/main/java/com/yutou/tools/utils/Tools.java

@@ -0,0 +1,15 @@
+package com.yutou.tools.utils;
+
+import javax.servlet.http.Cookie;
+import javax.servlet.http.HttpServletRequest;
+
+public class Tools {
+    public static Cookie getCookie(HttpServletRequest request,String key){
+        for (Cookie cookie : request.getCookies()) {
+            if(cookie.getName().equals(key)){
+                return cookie;
+            }
+        }
+        return null;
+    }
+}