MySQL8连接配置

1.连接驱动类改为”com.mysql.cj.jdbc.Driver”

在之前的驱动类(com.mysql.jdbc.Driver.class)下有这样一段：

static {
        System.err.println("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.");
    }

意思就是要更换驱动类

2.连接url参数配置

需要再url中指明编码格式，SSL，时区等信息
完整配置：

 url: jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8&useSSL=false&serverTimezone=GMT%2B8