1.添加jdbc的jar包
image.png
下载地址：https://dev.mysql.com/downloads/connector/j/
2.创建jdbc连接信息
image.png
variable name for created pool：链接变量名
databaseurl： jdbc:mysql://数据库ip:端口/数据库名?serverTimezone=UTC（貌似是数据库时区设置问题）
serverTimezone=UTC为解决：
Cannot create PoolableConnectionFactory (The server time zone value '???��������??��??' 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.)
3.jdbc请求
image.png
4.运行查看结果
image.png
