SpringBoot性能优化之HikariCP连接池

以前一直使用阿里Druid数据库连接池，这段时间听说有个号称速度最快、代码最简的后起之秀——HikariCP，于是动手实践一下

1.依赖如下：

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">

    <modelVersion>4.0.0</modelVersion>

    <parent>

        <groupId>org.springframework.boot</groupId>

        <artifactId>spring-boot-starter-parent</artifactId>

        <version>2.2.4.RELEASE</version>

        <relativePath/> <!-- lookup parent from repository -->

    </parent>

    <groupId>com.codekjm</groupId>

    <artifactId>hikari-cp</artifactId>

    <version>0.0.1-SNAPSHOT</version>

    <name>hikari-cp</name>

    <description>hikari-cp</description>

    <properties>

        <java.version>1.8</java.version>

    </properties>

    <dependencies>

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter</artifactId>

        </dependency>

        <!--JPA默认包含号称最快的HikariCP数据库连接池，不用引进依赖-->

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-data-jpa</artifactId>

        </dependency>

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-test</artifactId>

            <scope>test</scope>

            <exclusions>

                <exclusion>

                    <groupId>org.junit.vintage</groupId>

                    <artifactId>junit-vintage-engine</artifactId>

                </exclusion>

            </exclusions>

        </dependency>

        <dependency>

            <groupId>mysql</groupId>

            <artifactId>mysql-connector-java</artifactId>

            <version>8.0.15</version>

            <scope>runtime</scope>

        </dependency>

        <dependency>

            <groupId>org.projectlombok</groupId>

            <artifactId>lombok</artifactId>

            <optional>true</optional>

        </dependency>

        <!-- 阿里fast-json -->

        <dependency>

            <groupId>com.alibaba</groupId>

            <artifactId>fastjson</artifactId>

            <version>1.2.54</version>

        </dependency>

    </dependencies>

    <build>

        <plugins>

            <plugin>

                <groupId>org.springframework.boot</groupId>

                <artifactId>spring-boot-maven-plugin</artifactId>

            </plugin>

        </plugins>

    </build>

</project>

2.yml配置如下：

# 文件上传配置

spring:

  ## 数据库配置

  datasource:

    type: com.zaxxer.hikari.HikariDataSource

    driver-class-name: com.mysql.cj.jdbc.Driver

    url: jdbc:mysql://127.0.0.1:3306/hikari-cp?serverTimezone=GMT%2B8&useUnicode=true&characterEncoding=utf8&allowMultiQueries=true

    username: root

    password: root

##  Hikari 连接池配置 ------ 详细配置请访问：https://github.com/brettwooldridge/HikariCP

    hikari:

## 最小空闲连接数量

     minimum-idle: 10

## 空闲连接存活最大时间，默认600000（10分钟）

     idle-timeout: 18000

## 连接池最大连接数，默认是10

     maximum-pool-size: 1000

## 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

     auto-commit: true

## 连接池母子

     pool-name: OfficialWebsiteHikariCP

## 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

     max-lifetime: 1800000

## 数据库连接超时时间,默认30秒，即30000

     connection-timeout: 300000

     connection-test-query: SELECT 1

  jpa:

   show-sql: true

   open-in-view: true

  jackson:

   default-property-inclusion: non_null

logging:

  config: classpath:logback.xml

3.启动服务，看日志都是INFO，没有ERROR，好像没报啥错，但是启动失败了

INFO  [2020-02-08 21:08:29,641][] org.springframework.boot.StartupInfoLogger:55 - Starting OfficialWebsiteApplication on CodeKjm with PID 517424 (E:\code\TcProject\official-website\target\classes started by Code in E:\code\TcProject\official-website)

INFO  [2020-02-08 21:08:29,642][] org.springframework.boot.SpringApplication:655 - The following profiles are active: dev

INFO  [2020-02-08 21:08:30,094][] org.springframework.data.repository.config.RepositoryConfigurationDelegate:127 - Bootstrapping Spring Data JPA repositories in DEFAULT mode.

INFO  [2020-02-08 21:08:30,116][] org.springframework.data.repository.config.RepositoryConfigurationDelegate:187 - Finished Spring Data repository scanning in 4ms. Found 0 JPA repository interfaces.

INFO  [2020-02-08 21:08:30,502][] com.zaxxer.hikari.HikariDataSource:110 - WebsiteHikariCP - Starting...

INFO  [2020-02-08 21:08:31,292][] com.zaxxer.hikari.HikariDataSource:123 - WebsiteHikariCP - Start completed.

INFO  [2020-02-08 21:08:31,448][] org.hibernate.Version:46 - HHH000412: Hibernate Core {5.4.10.Final}

INFO  [2020-02-08 21:08:31,639][] org.hibernate.annotations.common.reflection.java.JavaReflectionManager:49 - HCANN000001: Hibernate Commons Annotations {5.1.0.Final}

INFO  [2020-02-08 21:08:31,902][] org.hibernate.dialect.Dialect:172 - HHH000400: Using dialect: org.hibernate.dialect.MySQL57Dialect

INFO  [2020-02-08 21:08:32,078][] org.hibernate.engine.transaction.jta.platform.internal.JtaPlatformInitiator:52 - HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]

INFO  [2020-02-08 21:08:32,089][] org.springframework.orm.jpa.AbstractEntityManagerFactoryBean:416 - Initialized JPA EntityManagerFactory for persistence unit 'default'

INFO  [2020-02-08 21:08:32,189][] org.springframework.boot.StartupInfoLogger:61 - Started OfficialWebsiteApplication in 3.075 seconds (JVM running for 4.566)

INFO  [2020-02-08 21:08:32,194][] org.springframework.orm.jpa.AbstractEntityManagerFactoryBean:598 - Closing JPA EntityManagerFactory for persistence unit 'default'

INFO  [2020-02-08 21:08:32,198][] com.zaxxer.hikari.HikariDataSource:350 - WebsiteHikariCP - Shutdown initiated...

Disconnected from the target VM, address: '127.0.0.1:55321', transport: 'socket'

INFO  [2020-02-08 21:08:32,202][] com.zaxxer.hikari.HikariDataSource:352 - WebsiteHikariCP - Shutdown completed.

调配置调了半天，换回原来的Druid连接池也是不行，再看看日志，发现倒数第四行：Closing JPA EntityManagerFactory for persistence unit 'default'

发现问题了，这个问题似曾熟悉，好久之前遇到过，而且不是ERROR报出来的，太不明显了（为自己的粗心找个理由，哈哈），再回去看看依赖，发现少了一个web依赖：

<dependency>

      <groupId>org.springframework.boot</groupId>

      <artifactId>spring-boot-starter-web</artifactId>

</dependency>

4.把这个依赖加上就行，问题解决，成功启动

INFO  [2020-02-08 21:13:35,653][] com.zaxxer.hikari.HikariDataSource:110 - WebsiteHikariCP - Starting...

INFO  [2020-02-08 21:13:36,124][] com.zaxxer.hikari.HikariDataSource:123 - WebsiteHikariCP - Start completed.

INFO  [2020-02-08 21:13:36,626][] org.hibernate.Version:46 - HHH000412: Hibernate Core {5.3.10.Final}

INFO  [2020-02-08 21:13:36,628][] org.hibernate.cfg.Environment:213 - HHH000206: hibernate.properties not found

INFO  [2020-02-08 21:13:37,612][] org.hibernate.annotations.common.reflection.java.JavaReflectionManager:49 - HCANN000001: Hibernate Commons Annotations {5.0.4.Final}

INFO  [2020-02-08 21:13:38,015][] org.hibernate.dialect.Dialect:157 - HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect

INFO  [2020-02-08 21:13:38,503][] org.springframework.orm.jpa.AbstractEntityManagerFactoryBean:415 - Initialized JPA EntityManagerFactory for persistence unit 'default'

INFO  [2020-02-08 21:13:38,963][] org.springframework.scheduling.concurrent.ExecutorConfigurationSupport:171 - Initializing ExecutorService 'applicationTaskExecutor'

INFO  [2020-02-08 21:13:39,415][] org.apache.juli.logging.DirectJDKLog:173 - Starting ProtocolHandler ["http-nio-8080"]

INFO  [2020-02-08 21:13:39,451][] org.springframework.boot.web.embedded.tomcat.TomcatWebServer:204 - Tomcat started on port(s): 8080 (http) with context path '/Website'

INFO  [2020-02-08 21:13:39,457][] org.springframework.boot.StartupInfoLogger:59 - Started OfficialWebsiteApplication in 14.086 seconds (JVM running for 17.532)

5.性能测试

有很多朋友已经亲测过了，这里我分享一个地址，大家进去比对一下各项性能，综合自己业务以及架构需要，采用合适的连接池即可

https://blog.csdn.net/fzghjx/article/details/88777442

巴特西

SpringBoot性能优化之HikariCP连接池

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