springboot hibernate 中各种数据库的连接设置

本文简单介绍springboot hibernate 中各种数据库的连接设置。在springboot的application.properties中，配置各种数据库的方法：

1、mysql

spring.jpa.database=MYSQL
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
spring.datasource.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.url=jdbc:mysql://127.0.0.1:3306/mydbname?useSSL=false
spring.datasource.username=user1
spring.datasource.password=user1

<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>5.1.34</version>
</dependency>

2、oracle

spring.jpa.database = oracle
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.Oracle10gDialect
spring.datasource.driverClassName=oracle.jdbc.driver.OracleDriver
spring.datasource.url=jdbc:oracle:thin:@127.0.0.1:1521:xe
spring.datasource.username=user1
spring.datasource.password=user1

<dependency>
    <groupId>com.oracle</groupId>
    <artifactId>ojdbc7</artifactId>
    <version>12.1.0.2.0</version>
</dependency>

3、sqlserver

spring.jpa.database = sql_server
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.SQLServerDialect
spring.datasource.driverClassName=com.microsoft.sqlserver.jdbc.SQLServerDriver
spring.datasource.url=jdbc:sqlserver://127.0.0.1:1433;databaseName=mydbname
spring.datasource.username=user1
spring.datasource.password=user1

<dependency>
    <groupId>com.microsoft.sqlserver</groupId>
    <artifactId>mssql-jdbc</artifactId>
    <version>6.1.0.jre8</version>
</dependency>

4、连接池设置

spring.datasource.max-active=20
spring.datasource.max-idle=8
spring.datasource.min-idle=8
spring.datasource.initial-size=10

spring.jpa.show-sql=true

# Hibernate ddl auto (create, create-drop, update)
spring.jpa.hibernate.ddl-auto=update

# physical_naming_strategy 避免java属性映射到数据库字段时，驼峰转下划线
spring.jpa.properties.hibernate.physical_naming_strategy=org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl

各种数据库对应的validationQuery

# sqlserver
spring.datasource.validationQuery=SELECT 1
# oracle
spring.datasource.validationQuery=SELECT 1 FROM DUAL
# mysql
spring.datasource.validationQuery=SELECT 1 FROM DUAL

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