<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>8.0.11</version>
</dependency>

// https://mvnrepository.com/artifact/mysql/mysql-connector-java
compile group: 'mysql', name: 'mysql-connector-java', version: '8.0.11'

<!-- https://mvnrepository.com/artifact/com.alibaba/druid -->
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid</artifactId>
    <version>1.1.10</version>
</dependency>

####gradle

// https://mvnrepository.com/artifact/com.alibaba/druid
compile group: 'com.alibaba', name: 'druid', version: '1.1.10'

@Configuration
public class Config {
    @Bean
    public DruidDataSource druidDataSource() {
        //Druid 数据源配置
        DruidDataSource dataSource = new DruidDataSource();
        dataSource.setDriverClassName("com.mysql.cj.jdbc.Driver");
        dataSource.setUrl("jdbc:mysql://127.0.0.1:3306/work?characterEncoding=utf8&useSSL=false&serverTimezone=UTC&allowPublicKeyRetrieval=true");
        dataSource.setUsername("webuser");
        dataSource.setPassword("123456");
        //初始连接数(默认值0)
        dataSource.setInitialSize(8);
        //最小连接数(默认值0)
        dataSource.setMinIdle(8);
        //最大连接数(默认值8,注意"maxIdle"这个属性已经弃用)
        dataSource.setMaxActive(32);
        return dataSource;
    }
}

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.

characterEncoding=utf8  （字符编码）
useSSL=false    （发现是8版本开始才需要添加，5.X印象中不需要，添加这个参数可能和MySQL的SSL连接设置有关系）
serverTimezone=UTC  （当连接数据库时候，出现Time Zone错误时添加此参数，我貌似是使用Druid连接池时才出现的这个问题）
allowPublicKeyRetrieval=true    （使用root账户登陆没问题，使用普通账户会提示Public Key Retrieval错误）