[feat][M]:新增Cookie工具函数类

java/src/main/java/com/hzu/bookingsystem/utils/CookieUtil.java

@@ -0,0 +1,70 @@
+package com.hzu.bookingsystem.utils;
+
+import com.alibaba.druid.util.StringUtils;
+import com.hzu.bookingsystem.bean.User;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.redis.core.StringRedisTemplate;
+
+import javax.servlet.http.Cookie;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.util.HashMap;
+import java.util.Map;
+
+public class CookieUtil {
+
+
+    /**
+     * 设置
+     *
+     * @param response
+     * @param name
+     * @param value
+     * @param maxAge
+     */
+    public static void set(HttpServletResponse response,
+                           String name,
+                           String value,
+                           int maxAge) {
+        Cookie cookie = new Cookie(name, value);
+        cookie.setPath("/");
+        cookie.setMaxAge(maxAge);
+        response.addCookie(cookie);
+    }
+
+    /**
+     * 获取cookie
+     *
+     * @param request
+     * @param name
+     * @return
+     */
+    public static Cookie get(HttpServletRequest request,
+                             String name) {
+        Map<String, Cookie> cookieMap = readCookieMap(request);
+        if (cookieMap.containsKey(name)) {
+            return cookieMap.get(name);
+        } else {
+            return null;
+        }
+    }
+
+    /**
+     * 将cookie封装成Map
+     *
+     * @param request
+     * @return
+     */
+    private static Map<String, Cookie> readCookieMap(HttpServletRequest request) {
+        Map<String, Cookie> cookieMap = new HashMap<>();
+        Cookie[] cookies = request.getCookies();
+        if (cookies != null) {
+            for (Cookie cookie : cookies) {
+                cookieMap.put(cookie.getName(), cookie);
+            }
+        }
+        return cookieMap;
+    }
+
+
+}