hikari连接池参数配置 ~~~ spring: datasource: username: root password: 123456 url: jdbc:mysql://localhost:3306/dbtrial?useUnicode=true&characterEncoding=utf-8 driver-class-name: com.mysql.jdbc.Driver hikari: # 连接池最大连接数 maximum-pool-size: 12 # 空闲时保持最小连接数 minimum-idle: 5 # 空闲连接存活时间 idle-timeout: 300000 # 连接超时时间 connection-timeout: 20000 # 测试sql connection-test-query: select 1 ~~~