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如何使用mysql8的免安装版本。

Error while closing command context 最近在学习工作流，配置activiti.cfg.xml文件时，遇到以下问题： [frame] 2020-12-16 22:38:19,361 - 0 ERROR [main] org.activiti.engine.impl.interceptor.CommandContext:149 - Error while closing command context org.apache.ibatis.exceptions.Persi

mysql时区问题 使用xml配置msyql时出现以下错误 ava.sql.SQLException: The server time zone value '�й���׼ʱ��' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the 'serverTimezone' configuration property) to use a