Spring Boot 快速使用 HikariCP 连接池配置详解

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

## Spring HikaraDataSource Configuration
# spring.datasource.type=com.zaxxer.hikari.HikariDataSource
# spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
# spring.datasource.name=HikariCP-1
spring.datasource.url=jdbc:mysql://localhost:3306/dbname?serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=utf-8&autoReconnect=true&autoReconnectForPools=true&noAccessToProcedureBodies=true&allowMultiQueries=true&zeroDateTimeBehavior=convertToNull
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.hikari.connection-timeout=30000
spring.datasource.hikari.idle-timeout=600000
spring.datasource.hikari.max-lifetime=1800000
spring.datasource.hikari.maximum-pool-size=100
spring.datasource.hikari.minimum-idle=10
spring.datasource.hikari.pool-name=HikaraPool-1

## Spring DataSourceProperties
# 设置连接池类型，默认自动获取（可选）
spring.datasource.type=com.zaxxer.hikari.HikariDataSource
# 设置数据库驱动，默认自动获取（可选）
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
# 生成唯一的数据源名称，设置与否，都会优先取 name 的值（可选）
spring.datasource.generate-unique-name=true
# 设置数据源名称，默认会生成唯一的数据源名称，如：HikariPool-1（可选）
spring.datasource.name=HikariCP-1
# 设置数据库连接（必选）
spring.datasource.url=jdbc:mysql://localhost:3306/dbname?serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=utf-8&autoReconnect=true&autoReconnectForPools=true&noAccessToProcedureBodies=true&allowMultiQueries=true&zeroDateTimeBehavior=convertToNull
# 设置数据库用户名（必选）
spring.datasource.username=root
# 设置数据库密码（必选）
spring.datasource.password=123456

## Spring HikariConfig
# 事务自动提交 - 默认值：true
spring.datasource.hikari.auto-commit=true
# 连接测试查询 - Using the JDBC4 <code>Connection.isValid()</code> method to test connection validity can be more efficient on some databases and is recommended.
# 如果你的驱动程序支持JDBC4，强烈建议不要设置此属性。
spring.datasource.hikari.connection-test-query=select 1
# 连接超时时间 - 默认值：30秒。
spring.datasource.hikari.connection-timeout=30000
# 连接池中允许闲置的最长时间 - 默认值：10分钟
spring.datasource.hikari.idle-timeout=600000
# 一个连接生命时长（毫秒），超时而没被使用则被释放 - 默认值：30分钟
spring.datasource.hikari.max-lifetime=1800000
# 连接池中允许的最大连接数，包括闲置和使用中的连接 - 默认值：10
spring.datasource.hikari.maximum-pool-size=100
# 连接池中允许的最小空闲连接数 - 默认值：10。
spring.datasource.hikari.minimum-idle=10
# 连接被测试活动的最长时间 - 默认值：5秒。
spring.datasource.hikari.validation-timeout=5000
# 指定连接池的名称 - 默认自动生成
spring.datasource.hikari.pool-name=HikaraPool-1

## Spring HikaraDataSource Configuration
# spring.datasource.one.driver-class-name=com.mysql.cj.jdbc.Driver
# spring.datasource.one.name=HikariCP-1
spring.datasource.one.url=jdbc:mysql://localhost:3306/kaddo-sit?serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=utf-8&autoReconnect=true&autoReconnectForPools=true&noAccessToProcedureBodies=true&allowMultiQueries=true&zeroDateTimeBehavior=convertToNull
spring.datasource.one.username=root
spring.datasource.one.password=123456
spring.datasource.one.hikari.connection-timeout=30000
spring.datasource.one.hikari.idle-timeout=600000
spring.datasource.one.hikari.max-lifetime=1800000
spring.datasource.one.hikari.maximum-pool-size=100
spring.datasource.one.hikari.minimum-idle=10
spring.datasource.one.hikari.pool-name=HikaraPool-1
## Spring HikaraDataSource Configuration
# spring.datasource.two.driver-class-name=com.mysql.cj.jdbc.Driver
# spring.datasource.two.name=HikariCP-2
spring.datasource.two.url=jdbc:mysql://localhost:3306/kaddo-uat?serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=utf-8&autoReconnect=true&autoReconnectForPools=true&noAccessToProcedureBodies=true&allowMultiQueries=true&zeroDateTimeBehavior=convertToNull
spring.datasource.two.username=root
spring.datasource.two.password=123456
spring.datasource.two.hikari.connection-timeout=30000
spring.datasource.two.hikari.idle-timeout=600000
spring.datasource.two.hikari.max-lifetime=1800000
spring.datasource.two.hikari.maximum-pool-size=100
spring.datasource.two.hikari.minimum-idle=10
spring.datasource.two.hikari.pool-name=HikaraPool-2

@Bean
@Primary
@ConfigurationProperties("spring.datasource.one")
public DataSourceProperties dataSourcePropertiesOne() {
	return new DataSourceProperties();
}
@Bean
@Primary
@ConfigurationProperties("spring.datasource.one.hikari")
public HikariDataSource dataSourceOne(DataSourceProperties properties) {
	return createHikariDataSource(properties);
}
@Bean
@ConfigurationProperties("spring.datasource.two")
public DataSourceProperties dataSourcePropertiesTwo() {
	return new DataSourceProperties();
}
@Bean
@ConfigurationProperties("spring.datasource.two.hikari")
public HikariDataSource dataSourceTwo(@Qualifier("dataSourcePropertiesTwo") DataSourceProperties properties) {
	return createHikariDataSource(properties);
}
  @SuppressWarnings("unchecked")
  private static <T> T createHikariDataSource(DataSourceProperties properties, Class<? extends DataSource> type) {
    return (T) properties.initializeDataSourceBuilder().type(type).build();
  }
  /**
   * 创建 HikariDataSource 数据源
   *
   * @param properties 参数
   * @return 数据源
   */
  private static HikariDataSource createHikariDataSource(DataSourceProperties properties) {
    HikariDataSource dataSource = createHikariDataSource(properties, HikariDataSource.class);
    if (StringUtils.hasText(properties.getName())) {
      dataSource.setPoolName(properties.getName());
    }
    return dataSource;
  }

@Autowired
private HikariDataSource dataSourceOne;
@Autowired
@Qualifier("dataSourceTwo")
private HikariDataSource dataSourceTwo;