- 重學Java設計模式
- 付政委(小付哥)
- 82字
- 2021-05-19 18:10:05
8.3 案例場景介紹
單例模式適用的場景非常簡單,是在日常開發中能遇到的,如數據庫的連接池不會反復創建,Spring中一個單例模式Bean的生成和使用,代碼中需要設置全局的一些屬性并保存。
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