SpringBoot4.5.2 整合HikariCP 数据库连接池操作

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.26</version>
        </dependency>

spring:
  ########-spring datasource-########
  datasource:
    #账号配置
    url: jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=utf8&serverTimezone=GMT%2B8
    username: root
    password: root
    #hikari数据库连接池
    hikari:
      pool-name: Retail_HikariCP
      minimum-idle: 5 #最小空闲连接数量
      idle-timeout: 180000 #空闲连接存活最大时间，默认600000（10分钟）
      maximum-pool-size: 10 #连接池最大连接数，默认是10
      auto-commit: true  #此属性控制从池返回的连接的默认自动提交行为,默认值：true
      max-lifetime: 1800000 #此属性控制池中连接的最长生命周期，值0表示无限生命周期，默认1800000即30分钟
      connection-timeout: 30000 #数据库连接超时时间,默认30秒，即30000
      connection-test-query: SELECT 1

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::                (v2.5.2)
2021-08-09 14:25:51.322  INFO 1298 --- [           main] com.example.demorsa.DemoRsaApplication   : Starting DemoRsaApplication using Java 11.0.2 on foxdeiMac with PID 1298 
2021-08-09 14:25:51.324  INFO 1298 --- [           main] com.example.demorsa.DemoRsaApplication   : No active profile set, falling back to default profiles: default
2021-08-09 14:25:51.905  INFO 1298 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.
2021-08-09 14:25:51.921  INFO 1298 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 8 ms. Found 0 JPA repository interfaces.
2021-08-09 14:25:52.272  INFO 1298 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8080 (http)
2021-08-09 14:25:52.279  INFO 1298 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2021-08-09 14:25:52.279  INFO 1298 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.48]
2021-08-09 14:25:52.350  INFO 1298 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2021-08-09 14:25:52.350  INFO 1298 --- [           main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 954 ms
2021-08-09 14:25:52.456  INFO 1298 --- [           main] com.zaxxer.hikari.HikariDataSource       : Retail_HikariCP - Starting...
2021-08-09 14:25:52.600  INFO 1298 --- [           main] com.zaxxer.hikari.HikariDataSource       : Retail_HikariCP - Start completed.
2021-08-09 14:25:52.633  INFO 1298 --- [           main] o.hibernate.jpa.internal.util.LogHelper  : HHH000204: Processing PersistenceUnitInfo [name: default]
2021-08-09 14:25:52.661  INFO 1298 --- [           main] org.hibernate.Version                    : HHH000412: Hibernate ORM core version 5.4.32.Final
2021-08-09 14:25:52.740  INFO 1298 --- [           main] o.hibernate.annotations.common.Version   : HCANN000001: Hibernate Commons Annotations {5.1.2.Final}
2021-08-09 14:25:52.814  INFO 1298 --- [           main] org.hibernate.dialect.Dialect            : HHH000400: Using dialect: org.hibernate.dialect.MySQL55Dialect
2021-08-09 14:25:52.919  INFO 1298 --- [           main] o.h.e.t.j.p.i.JtaPlatformInitiator       : HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
2021-08-09 14:25:52.927  INFO 1298 --- [           main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2021-08-09 14:25:52.958  WARN 1298 --- [           main] JpaBaseConfiguration$JpaWebConfiguration : spring.jpa.open-in-view is enabled by default. Therefore, database queries may be performed during view rendering. Explicitly configure spring.jpa.open-in-view to disable this warning
2021-08-09 14:25:53.236  INFO 1298 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8080 (http) with context path ''
2021-08-09 14:25:53.245  INFO 1298 --- [           main] com.example.demorsa.DemoRsaApplication   : Started DemoRsaApplication in 2.233 seconds (JVM running for 2.8)

## 数据库配置
spring.datasource.type=com.zaxxer.hikari.HikariDataSource
spring.datasource.driverClassName = com.mysql.jdbc.Driver
spring.datasource.url = jdbc:mysql://localhost:3306/ssm?useUnicode=true&characterEncoding=utf-8&useSSL=false
spring.datasource.username = root
spring.datasource.password = root
##  Hikari 连接池配置 ------ 详细配置请访问：https://github.com/brettwooldridge/HikariCP
## 最小空闲连接数量
spring.datasource.hikari.minimum-idle=5
## 空闲连接存活最大时间，默认600000（10分钟）
spring.datasource.hikari.idle-timeout=180000
## 连接池最大连接数，默认是10
spring.datasource.hikari.maximum-pool-size=10
## 此属性控制从池返回的连接的默认自动提交行为,默认值：true
spring.datasource.hikari.auto-commit=true
## 连接池母子
spring.datasource.hikari.pool-name=MyHikariCP
## 此属性控制池中连接的最长生命周期，值0表示无限生命周期，默认1800000即30分钟
spring.datasource.hikari.max-lifetime=1800000
## 数据库连接超时时间,默认30秒，即30000
spring.datasource.hikari.connection-timeout=30000
spring.datasource.hikari.connection-test-query=SELECT 1