参考的文章(https://blog.csdn.net/qq_28410283/article/details/86700635
)https://blog.csdn.net/Mr_OOO/article/details/84898890
后续再慢慢深入理解这些东西
添加依赖：
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.1.10</version>
</dependency>
配置文件：
server.port=8888
mybatis.config-location=classpath:mybatis/mybatis.cfg.xml
mybatis.type-aliases-package=com.lover.bean
mybatis.mapper-locations:classpath:mybatis/mapper/*.xml
spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/lover?serverTimezone=GMT%2B8&useUnicode=true&characterEncoding=utf8
spring.datasource.username=root
spring.datasource.password=900809
spring.datasource.druid.max-active=20
spring.datasource.druid.initial-size=1
spring.datasource.druid.max-wait=60000
spring.datasource.druid.pool-prepared-statements=true
spring.datasource.druid.max-pool-prepared-statement-per-connection-size=20
spring.datasource.druid.connection-properties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
spring.datasource.druid.min-idle=1
spring.datasource.druid.time-between-eviction-runs-millis=60000
spring.datasource.druid.min-evictable-idle-time-millis=300000
spring.datasource.druid.validation-query=select 1 from dual
spring.datasource.druid.test-while-idle=true
spring.datasource.druid.test-on-borrow=true
spring.datasource.druid.test-on-return=true
spring.datasource.druid.web-stat-filter.enabled=true
spring.datasource.druid.web-stat-filter.url-pattern=/*
spring.datasource.druid.web-stat-filter.exclusions=*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*
spring.datasource.druid.web-stat-filter.session-stat-enable=true
spring.datasource.druid.web-stat-filter.session-stat-max-count=1000
spring.datasource.druid.stat-view-servlet.enabled= true
spring.datasource.druid.stat-view-servlet.url-pattern=/druid/*
spring.datasource.druid.stat-view-servlet.reset-enable=true
spring.datasource.druid.stat-view-servlet.login-username=druid
spring.datasource.druid.stat-view-servlet.login-password=123456
spring.datasource.druid.stat-view-servlet.allow=127.0.0.1
spring.datasource.druid.stat-view-servlet.deny=192.168.0.19
