DataSource 自动配置类 DataSourceAutoConfiguration

spring boot 默认的 DataSource 自动配置类为 DataSourceAutoConfiguration。

DATASOURCE

# DATASOURCE (DataSourceAutoConfiguration & DataSourceProperties)
spring.datasource.continue-on-error=false # Whether to stop if an error occurs while initializing the database.
spring.datasource.data= # Data (DML) script resource references.
spring.datasource.data-username= # Username of the database to execute DML scripts (if different).
spring.datasource.data-password= # Password of the database to execute DML scripts (if different).
spring.datasource.dbcp2.*= # Commons DBCP2 specific settings
spring.datasource.driver-class-name= # Fully qualified name of the JDBC driver. Auto-detected based on the URL by default.
spring.datasource.generate-unique-name=false # Whether to generate a random datasource name.
spring.datasource.hikari.*= # Hikari specific settings
spring.datasource.initialization-mode=embedded # Initialize the datasource with available DDL and DML scripts.
spring.datasource.jmx-enabled=false # Whether to enable JMX support (if provided by the underlying pool).
spring.datasource.jndi-name= # JNDI location of the datasource. Class, url, username & password are ignored when set.
spring.datasource.name= # Name of the datasource. Default to "testdb" when using an embedded database.
spring.datasource.password= # Login password of the database.
spring.datasource.platform=all # Platform to use in the DDL or DML scripts (such as schema-${platform}.sql or data-${platform}.sql).
spring.datasource.schema= # Schema (DDL) script resource references.
spring.datasource.schema-username= # Username of the database to execute DDL scripts (if different).
spring.datasource.schema-password= # Password of the database to execute DDL scripts (if different).
spring.datasource.separator=; # Statement separator in SQL initialization scripts.
spring.datasource.sql-script-encoding= # SQL scripts encoding.
spring.datasource.tomcat.*= # Tomcat datasource specific settings
spring.datasource.type= # Fully qualified name of the connection pool implementation to use. By default, it is auto-detected from the classpath.
spring.datasource.url= # JDBC URL of the database.
spring.datasource.username= # Login username of the database.
spring.datasource.xa.data-source-class-name= # XA datasource fully qualified name.
spring.datasource.xa.properties= # Properties to pass to the XA data source.

指定 Hikari 数据源

spring boot 默认数据源为 Hikari，也可通过 spring.datasource.type 指定 Hikari 数据源。

spring:
  datasource:
    type: com.zaxxer.hikari.HikariDataSource

Hikari常用配置

# Hikari pool https://github.com/brettwooldridge/HikariCP
spring.datasource.type=com.zaxxer.hikari.HikariDataSource
# 连接池中允许的最小连接数。缺省值：10
spring.datasource.hikari.minimum-idle=10
# 连接池中允许的最大连接数。缺省值：10
spring.datasource.hikari.maximum-pool-size=100
# 自动提交
spring.datasource.hikari.auto-commit=true
# 一个连接idle状态的最大时长（毫秒），超时则被释放（retired），缺省:10分钟
spring.datasource.hikari.idle-timeout=30000
# 连接池名字
spring.datasource.hikari.pool-name=FlyduckHikariCP
# 一个连接的生命时长（毫秒），超时而且没被使用则被释放（retired），缺省:30分钟，建议设置比数据库超时时长少30秒
spring.datasource.hikari.max-lifetime=1800000
# 等待连接池分配连接的最大时长（毫秒），超过这个时长还没可用的连接则发生SQLException， 缺省:30秒
spring.datasource.hikari.connection-timeout=30000
# 数据库连接测试语句
spring.datasource.hikari.connection-test-query=SELECT 1

HikariCP的官方github

https://github.com/brettwooldridge/HikariCP