golang 数据库连接 defer db.Close()用法问题? - V2EX
xyxy

golang 数据库连接 defer db.Close()用法问题?

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  •   xyxy May 15, 2023 1649 views
    This topic created in 1105 days ago, the information mentioned may be changed or developed.
    defer db.Close() 这段应写在
    1.数据库初始化函数里
    2.main 函数里 数据库初始化下面
    3.业务函数里
    4.不需要写这段
    选几呀
    4 replies    2023-05-15 13:44:57 +08:00
    ryan961
        1
    ryan961  
       May 15, 2023
    1,2,3 都不需要,4 也不是不可以,正常只需要加在 graceful Shutdown 的函数里就好了
    dreasky
        2
    dreasky  
       May 15, 2023
    大多程序只需要进行一次数据库初始化 初始化放 main 里 defer db.Close()紧跟初始化
    xyxy
        3
    xyxy  
    OP
       May 15, 2023
    好的 明白了 写在 main 函数里 初始化后面了
    clikes
        4
    clikes  
       May 15, 2023
    同意#1 的看法,如果说是一个简单的项目的话,可以写在初始化下面,如果有统一的 shutdown 函数的话就放这个函数里
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