update ServletUtil

web/src/main/java/cn/reghao/jutil/web/ServletUtil.java

@@ -19,7 +19,8 @@ import java.util.Map;
  * @date 2021-06-02 13:16:58
  */
 public class ServletUtil {
-    public static Map<String, String> getCookies(HttpServletRequest request) {
+    public static Map<String, String> getCookies() {
+        HttpServletRequest request = getRequest();
         Cookie[] cookies = request.getCookies();
         Map<String, String> map = new HashMap<>();
         if (cookies != null) {
@@ -32,6 +33,11 @@ public class ServletUtil {
         return map;
     }
 
+    public static String getCookie(String name) {
+        Map<String, String> map = getCookies();
+        return map.get(name);
+    }
+
     public static String getBearerToken() {
         String auth = getRequest().getHeader("Authorization");
         if (auth == null) {