改了guns框架的datasource的url还是报错

来源：3-2 Guns环境构建

Edward_han

2018-10-27

spring:
datasource:
url: jdbc:mysql://127.0.0.1:3306/guns_rest?autoReconnect=true&useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8
报错：
Caused by: com.baomidou.mybatisplus.exceptions.MybatisPlusException: Error: GlobalConfigUtils setMetaData Fail ! Cause:java.sql.SQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.

mysql版本：
Server version: 5.1.73

Guns项目pom文件里的驱动版本是：
<mysql-connector-java.version>8.0.11</mysql-connector-java.version>

我是不是得重新装各8.0版的mysql，老师用5.8的MySQL也没问题啊

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