数据库连接失败 一.例如我在SpringBoot项目中使用了阿里的数据库连接池Driud. 有次在启动的时候,会报这样的错: Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure The last packet successfully received from the server was 319 milliseconds ago. The last packet s
Loading class `com.mysql.jdbc.Driver'. This is deprecated. The new driver class is `com.mysql.cj.jdbc.Driver'. The driver is automatically registered via the SPI and manual loading of the driver class is generally unnecessary. 这个问题是升级完MySQL的链接驱动后出现的问
异常: Loading class `com.mysql.jdbc.Driver'. This is deprecated. The new driver class is `com.mysql.cj.jdbc.Driver'. 整合spring boot项目过程中出现的,用了最新的mysql 连接驱动 application-dev.properties spring.datasource.url=jdbc:mysql://localhost:3306/test?serverTimezone=
Mysql版本的相关问题:com.mysql.cj.jdbc.Driver和com.mysql.jdbc.Driver 1. 在使用mysql时,控制台日志报错如下: Loading class `com.mysql.jdbc.Driver'. This is deprecated. The new driver class is `com.mysql.cj.jdbc.Driver'. The driver is automatically registered via the SPI and
在Eclipse中使用MySQL遇到了点小问题 如果对Eclipse中配置MySql还有疑问的可以参考一下这篇博客:https://blog.csdn.net/qq_38247544/article/details/80419692 参考菜鸟上的例子的代码如下: 当然,这是修改后没问题后的代码 package mysqltest; import java.sql.*; public class Mysql { // jdbc驱动名以及数据库URL // static final String J
异常错误:Loading class `com.mysql.jdbc.Driver'. This is deprecated. The new driver class is `com.mysql.cj.jdbc.Driver'. The driver is automatically registered via the SPI and manual loading of the driver class is generally unnecessary. 这个问题 是在我整合项目过程中出现的
一.问题 今天用mybatis连接数据库时出现了如下错误: 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 s
com.mysql.jdbc.Driver tocom.mysql.cj.jdbc.Driver MySQL :: MySQL Connector/J 8.0 Developer Guide :: 4.3.1.3 Changes in the Connector/J API https://dev.mysql.com/doc/connector-j/8.0/en/connector-j-api-changes.html MySQL Connector/J 8.0 Developer Guide
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
com.mysql.cj.exceptions.DataReadException: Zero date value prohibited at com.mysql.cj.result.SqlTimestampValueFactory.localCreateFromTimestamp(SqlTimestampValueFactory.java:99) ~[mysql-connector-java-8.0.16.jar!/:8.0.16] at com.mysql.cj.result.SqlTim