Spring Boot連接MySQL

連接數據庫一定會使用連接池，Spring Boot目前使用較多的數據庫連接池是Druid和HikariCP。

1、Druidl連接池使用

a、引入依賴

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>druid-spring-boot-starter</artifactId>
    <version>1.1.22</version>
</dependency>

<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>6.0.6</version>
</dependency>

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-jdbc</artifactId>
    <version>2.2.8.RELEASE</version>
</dependency>

b、進行配置

spring:
  datasource:
    type: com.alibaba.druid.pool.DruidDataSource
    url: jdbc:mysql://127.0.0.0:3066/dbname?serverTimezone=UTC
    username: root
    password: rootpwd
    driver-class-name: com.mysql.cj.jdbc.Driver
    druid:
      initial-size: 5
      max-active: 10
      min-idle: 5
      max-wait: 30000