1: 在mysql中,手动提交事务的案例:CREATE PROCEDURE tfer_funds (from_account int, to_account int, tfer_amount numeric(10,2)) BEGIN SET autocommit=0; UPDATE account_balance SET balance=balance-tfer_amount WHERE account_id=from_account;
Apache Log4j2 is an upgrade to Log4j that provides significant improvements over its predecessor, Log4j 1.x, and provides many of the improvements available in Logback while fixing some inherent problems in Logback's architecture. 既然Log4j2相比Log4j和Log
今天在部署springboot项目到阿里云时,出现登录方法执行特别慢的问题.刚开始以为是卡死了,等了3,4分钟才进去,最后会出现如下信息: 2018-01-28 15:38:36.958 INFO 4374 --- [p-nio-80-exec-1] o.a.c.util.SessionIdGeneratorBase : Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [329,7