java–SpringBoot2多个数据源初始化模式

我有一个Spring Boot 2应用程序,它使用两个数据源 – 一个Oracle和一个H2. H2数据源设置为辅助数据源,我想在启动时为它创建模式,但它永远不会触发schema.sql文件.这是我的数据源配置文件：

@Configuration
public class DataSourceConfig {
@Bean
@Primary
@ConfigurationProperties("spring.datasource")
public DataSourceProperties primaryDataSourceProperties() {
return new DataSourceProperties();
}
@Bean
@Primary
@ConfigurationProperties("spring.datasource")
public DataSource primaryDataSource() {
return primaryDataSourceProperties().initializeDataSourceBuilder().build();
}
@Bean
@ConfigurationProperties("spring.runlogdatasource")
public DataSourceProperties runlogDataSourceProperties() {
return new DataSourceProperties();
}
@Bean
@ConfigurationProperties("spring.runlogdatasource")
public DataSource runlogDataSource() {
return runlogDataSourceProperties().initializeDataSourceBuilder().build();
}
}


这是我的application.properties文件：

spring.datasource.url=jdbc:oracle:thin:@my.database.com:1521/mydb
spring.datasource.username=test
spring.datasource.password=ENC(3PXcnoBndLpWN1EcMtmIn+odOwhdWjSrqANijutxuekKEIOco64Jew==)
spring.datasource.driver-class-name=oracle.jdbc.driver.OracleDriver
spring.datasource.initialization-mode=never
spring.datasource.hikari.connection-timeout=60000
spring.datasource.hikari.maximum-pool-size=10
jasypt.encryptor.bean=stringEncryptor
spring.runlogdatasource.url=jdbc:h2:~/runlogdb;CIPHER=AES;DB_CLOSE_ON_EXIT=FALSE;
spring.runlogdatasource.username=sa
spring.runlogdatasource.password=ENC(3PXcnoBndLpWN1EcMtmIn+odOwhdWjSrqANijutxuekKEIOco64Jew==)
spring.runlogdatasource.driverClassName=org.h2.Driver
spring.runlogdatasource.platform=h2
spring.runlogdatasource.schema=classpath:schema-h2.sql


对于主数据源,我可以看到它进入DataSourceInitializerInvoker,它正在尝试加载模式,但由于没有schema-all.sql文件,它会跳过该模式.但是,我确实有一个schema-h2.sql文件,但对于辅助数据源,它从不进入DataSourceInitializerInvoker,因此从不尝试初始化模式.任何帮助将不胜感激！

解决方法:

这是预期的行为.指定主数据源时,仅执行此数据源的模式和数据.为了产生这种行为,您需要做的是为两个数据源中的每一个定义DataSourceInitializer.

@Bean
public DataSourceInitializer dataSourceInitializer1(@Qualifier("datasource1") DataSource datasource) {
ResourceDatabasePopulator resourceDatabasePopulator = new ResourceDatabasePopulator();
resourceDatabasePopulator.addScript(new ClassPathResource("schema-h22.sql"));
resourceDatabasePopulator.addScript(new ClassPathResource("data-h22.sql"));DataSourceInitializer dataSourceInitializer = new DataSourceInitializer();dataSourceInitializer.setDataSource(datasource);dataSourceInitializer.setDatabasePopulator(resourceDatabasePopulator);return dataSourceInitializer;
}
@Bean
public DataSourceInitializer dataSourceInitializer2(@Qualifier("datasource2") DataSource datasource) {
ResourceDatabasePopulator resourceDatabasePopulator = new ResourceDatabasePopulator();
resourceDatabasePopulator.addScript(new ClassPathResource("schema-h21.sql"));
resourceDatabasePopulator.addScript(new ClassPathResource("data-h21.sql"));
DataSourceInitializer dataSourceInitializer = new DataSourceInitializer();
dataSourceInitializer.setDataSource(datasource);
dataSourceInitializer.setDatabasePopulator(resourceDatabasePopulator);
return dataSourceInitializer;
}


您还需要禁用默认的弹簧数据初始化.你可以通过spring.datasource.initialization-mode = never来做到这一点