JDBC: MySQL5.x and MySQL8.x

jar package Download:  https://dev.mysql.com/downloads/connector/j/

Jar package version to be consistent with the version of the database

Using 5.x versions:

url =  "jdbc:mysql://localhost:3306/database_name"

驱动：
com.mysql.jdbc.Driver

 

When using version 8.x, you want to add some parameters:

url = "jdbc:mysql://localhost:3306/database_name? characterEncoding=utf8 & useSSL=false & serverTimezone=UTC & rewriteBatchedStatements=true";

驱动：
com.mysql.cj.jdbc.Driver