1.解决方法: 报错信息为: Caused by: com.mysql.cj.exceptions.InvalidConnectionAttributeException: The server time zone value 'Öйú±ê׼ʱ¼ä' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serve…

1 错误描述 Procedure execution failed 2013 - Lost connection to MySQL server during query 2 错误原因 由错误描述可知,是在查询的过程中,数据库失去连接 3 解决办法 重新连接数据库…

问题描述 App Service使用jdbc连接MySQL服务,出现大量的  Communications link failure: com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received…

一.报错原因 com.mysql.cj.jdbc.Driver一直标红报错,原因在于pom.xml中mysql包没有下载下来,或者在创建项目的时候有问题 二.解决方案 在pom.xml添加 <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> 刷新依赖及导入成功,就不爆红了 三.我试用过的方法…

报错信息: Lost connection to MySQL server at 解决方案: use mysql; ; flush privileges; 参考: https://blog.csdn.net/donglynn/article/details/37668873 原文链接: https://www.cnblogs.com/poterliu/p/11850786.html…

解决方案 连接Mysql报错 The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. 检查mysql服务是否开启…

原因: springboot应用了最新的驱动com.mysql.cj.jdbc.Driver,这个驱动需要用mysql-connector-java包的6.x版本才可以, 而mysql-connector-java6.x版本支持的数据库版本又有限制,好像必须升级到5.5.x版本才支持…

将驱动换成 <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/newtest" userId="root" password="root"> </jdbcConnection>…

出现 com.mysql.cj.jdbc.exceptions.MysqlDataTruncation: Data truncation: Incorrect datetime value: '1' for column 'date' at row 1错误数据库中的daka表字段 date ,原本初始设置的数据类型是int 11位: 导致类型对不上,将数据库date设为varchar数据类型即可…

详细报错 java.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 more specifc time z…