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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                在接口開發工作中很常見的限時訪問功能,每個用戶每分鐘只允許調用一次接口。或者論壇中,每個用戶五分鐘之內只能提交一次評論。本章我們就來實現一個簡單的限時訪問,每個用戶每分鐘只允許調用一次接口。 在高并發的項目中,通常我們不會用業務層代碼來處理限時訪問,更常見的是用 Nginx + Lua + Redis 來實現限時訪問。 ## 每分鐘只允許調用一次接口 ~~~ public function somthing($user_id) { $redis = new \Redis(); $redis->connect('127.0.0.1', 6379); // 鎖不存在,就執行業務代碼 if (!$redis->exists("lock:{$user_id}")) { // ========== // do somthing // ========== // 在 Redis 中存一個有效期60秒的緩存鎖 $redis->set('lock:{$user_id}', 1, 60); return ['code' => 200, 'message' => '操作成功', 'data' => 'somthing']; } return ['code' => 422, 'message' => '每分鐘只允許調用一次']; } ~~~
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