The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received

最近在用spring boot做一个本地小项目的时候,连接本地数据库报这个错,可恶呢! 

检查了一下我的JDBC url: 

spring.datasource.url=jdbc:mysql://localhost:3066/zichenwuliu?useUnicode=true&characterEncoding=utf8
哇嘞,撒叉了,mysql默认端口是3306 我写成3066了,改回来重新启动,又来了:

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received_第1张图片

然后我又检查了一下我的mysql的版本mysql-8.0.16-winx64,然而我的pom中的

mysql-connector-java 版本是5.1.35   升级到8.0.11 ,
spring.datasource.driverClassName = com.mysql.jdbc.Driver 升级成com.mysql.cj.jdbc.Driver
再重启,又来了:

java.sql.SQLException: 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 serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.
 

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received_第2张图片

,可恶呢,百度了一下,两种办法  一个是在url后面加上时区参数:

 

static final String DB_URL="jdbc:mysql://localhost:3306/csm"+"?serverTimezone=GMT%2B8";

另一个是直接在myql设置时区加8小时,我采取的是第二种,在mysql客户端窗口运行:

set global time_zone='+8:00' 

再次重启,成功!

 

 

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