摘要: 场景:tom欠jerry1000元,通过银行转账,此过程需要两条sql语句实现 1.update account set money = money - 1000 where name = 'tom'; 2.update account set money = money + 1000 where 阅读全文
posted @ 2020-08-28 22:27 硬盘红了 阅读(191) 评论(0) 推荐(0) 编辑
摘要: main线程类: public class DemoThreadLocal { public static void main(String[] args) { ThreadLocal<String> tl = new ThreadLocal<>(); //获取当前main线程对象绑定的值 Stri 阅读全文
posted @ 2020-08-28 21:40 硬盘红了 阅读(147) 评论(0) 推荐(0) 编辑