听说 System.out.print 是同步的弊端那我这么写可不可以? - V2EX
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VKRUSSIA
V2EX    Java

听说 System.out.print 是同步的弊端那我这么写可不可以?

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  •   VKRUSSIA Feb 6, 2022 2542 views
    This topic created in 1540 days ago, the information mentioned may be changed or developed.

    如下,是不是脱裤子放屁?哈哈,我是小白大佬轻喷

    public class FuckLog4j {

    public final static void out(Object s) { CompletableFuture.runAsync(() -> { System.out.println(s); }); } public final static void err(Object o) { CompletableFuture.runAsync(() -> { System.err.println(o); }); } 

    }

    kenvix
        1
    kenvix  
       Feb 6, 2022   1
    你这样打出来的可能会乱序的
    nightwitch
        2
    nightwitch  
       Feb 6, 2022
    正经项目不用 println ,用日志库。
    bthulu
        3
    bthulu  
       Feb 7, 2022
    CompletableFuture 默认线程池就是你的 CPU 个数, 而 IO 操作一般倾向于新开线程处理, 而不是用线程池
    Hug125
        4
    Hug125  
       Feb 7, 2022
    @nightwitch #2 正解
    ikas
        5
    ikas  
       Feb 8, 2022
    很厉害 FuckLog4j
    VKRUSSIA
        6
    VKRUSSIA  
    OP
       Feb 8, 2022
    @ikas log4j 系列使用太繁琐了还老是报错找不到配置文件,写这玩意吐槽下哈哈
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