fix: 缓存读取

user-8072/src/main/java/com/ivmiku/tutorial/utils/RedisUtil.java

@@ -114,4 +114,12 @@ public class RedisUtil {
         }
         return result;
     }
+
+    public void insertKey(String openid, String sessionKey) {
+        redisTemplate.opsForValue().set("sessionkey:" + openid, sessionKey);
+    }
+
+    public String getKey(String userId) {
+        return (String) redisTemplate.opsForValue().get("sessionkey:" + userId);
+    }
 }