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

概述:com.mysql.jdbc.Driver是mysql-connector-java 5中的,而com.mysql.cj.jdbc.Driver是mysql-connector-java 6中的. 1.JDBC连接Mysql5需用com.mysql.jdbc.Driver,例如:driverClassName=com.mysql.jdbc.Driverurl=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding

转自: http://blog.csdn.net/superdangbo/article/details/78732700 com.mysql.jdbc.Driver 和 com.mysql.cj.jdbc.Driver的区别 serverTimezone设定 原创 2017年12月06日 17:09:14 标签: mysql / jdbc 975 com.mysql.jdbc.Driver 是 mysql-connector-java 5中的, com.mysql.cj.jdbc.Driver

com.mysql.jdbc.Driver 是 mysql-connector-java 5中的,com.mysql.cj.jdbc.Driver 是 mysql-connector-java 6中的 1.JDBC连接Mysql5 com.mysql.jdbc.Driver: driverClassName=com.mysql.jdbc.Driver url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=ut

是因为最新的数据库驱动的原因,用较早的版本就可以了. <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> <version>5.1.41</version> </dependency> 或者按照最新官方提示支持将com.mysq

<properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> <druid.version>1.0.

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

com.mysql.jdbc.Driver 是 mysql-connector-java 5中的,com.mysql.cj.jdbc.Driver 是 mysql-connector-java 6中的 1.JDBC连接Mysql5 com.mysql.jdbc.Driver: driverClassName=com.mysql.jdbc.Driverurl=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf

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

MyBatis Generator使用com.mysql.cj.jdbc.Driver Mybatis Generator 1.3.5 新建了一个decision库,并创建了一张user表 import org.apache.commons.lang3.StringUtils; import org.mybatis.generator.api.MyBatisGenerator; import org.mybatis.generator.config.*; import org.mybatis.g

老版本com.mysql.jdbc.Driver已弃用 String url1 = "jabc:mysql://127.0.0.1:3306/test"; String url1 = "jabc:mysql://localhost:3306/test"; 新版用com.mysql.cj.jdbc.Driver UTC:全球时间 Asia/Shanghai:上海时间 GMT%2B8:北京时间 String url = "jdbc:mysql://localh

Mybatis Generator 使用com.mysql.cj.jdbc.Driver遇到的问题 今天闲来无事,准备搭一套SSM的环境,当然所有的jar包都用最新的. Mybatis使用3.4.6,Mysql使用最新的8.0,mysql-connector-java用的8.0.11. 安装好数据库后,新建了一个test库,并创建了一张user表.配置好Mybatis的配置文件,如下: <?xml version="1.0" encoding="UTF-8"

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

mysql6.0里面改成新的配置方式: hibernate.dialect=org.hibernate.dialect.MySQL5InnoDBDialect #old #driverClassName=com.mysql.jdbc.Driver #new driverClassName=com.mysql.cj.jdbc.Driver validationQuery=SELECT 1 #old #jdbc_url=jdbc:mysql://localhost:3306/user?useUnic

在连接数据库时,使用了最新版本的mysql-Connector,所以导致老版本的“com.mysql.jdbc.Drive”不可行,要改为“com.mysql.cj.jdbc.Driver”

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