警告信息:```javalog4j:WARN No appenders could be found for logger (com.alibaba.dubbo.common.logger.LoggerFactory).log4j:WARN Please initialize the log4j system properly.log4j:WARN See http://logging....
报错:`com.mysql.cj.core.exceptions.ConnectionIsClosedException: No operations allowed after connection closed.`添加 `&autoReconnect=true` 无济于事,此选项好像仅对 MySQL 5之前的版本有效。 原因Mysql服务器默认的“wait_timeout”是8小时...
springboot 升级到2.0之后发现配置多数据源的时候报错:“jdbcUrl is required with driverClassName.”或者Cause: java.lang.IllegalArgumentException: dataSource or dataSourceClassName or jdbcUrl is required.\] with root cause ...
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