https://blog.csdn.net/youcijibi/article/details/77965487?locationNum=7&fps=1
jdbc:mysql://[host][,failoverhost...][:port]/[database] »
[?propertyName1][=propertyValue1][&propertyName2][=propertyValue2]...
jdbc:mysql://[host:port],[host:port].../[database] »
[?propertyName1][=propertyValue1][&propertyName2][=propertyValue2]...
实例:
jdbc:mysql://localhost:3306/sakila?profileSQL=true
实例2: