原创：mysql5 还原至mysql 8.0.11数据库链接配置提示错误改动备注

<dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>

　　　　　　　　!--原版本 5.1.6-->
            <version>8.0.11</version>
</dependency>

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
                http://www.springframework.org/schema/beans/spring-beans.xsd
                http://www.springframework.org/schema/context
                http://www.springframework.org/schema/context/spring-context.xsd
                http://www.springframework.org/schema/aop
                http://www.springframework.org/schema/aop/spring-aop.xsd
                http://www.springframework.org/schema/tx
                http://www.springframework.org/schema/tx/spring-tx.xsd
                http://www.springframework.org/schema/mvc
                http://www.springframework.org/schema/mvc/spring-mvc.xsd">
    <!--dao层配置文件开始-->
    <!--配置连接池-->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <!--<property name="driverClassName" value="com.mysql.jdbc.Driver"/>-->
        <property name="driverClassName" value="com.mysql.cj.jdbc.Driver"/>
        <property name="url" value="jdbc:mysql://localhost:3306/maven?useUnicode=true&amp;characterEncoding=UTF-8&amp;serverTimezone=UTC&amp;useSSL=false"/>
        <property name="username" value="root"/>
        <property name="password" value="root"/>
    </bean>

    <!--配置生产SqlSession对象的工厂-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <!--扫描pojo包，给包下所有pojo对象起别名-->
        <property name="typeAliasesPackage" value="com.itheima.domain"/>
    </bean>

    <!--扫描接口包路径，生成包下所有接口的代理对象，并且放入spring容器中-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.itheima.dao"/>
    </bean>
    <!--dao层配置文件结束-->
</beans>