63 lines
1.9 KiB
Plaintext
63 lines
1.9 KiB
Plaintext
= Multiple DataSources Sample Task
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This is a Spring Boot application that utilizes two DataSources and explicitly configures
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which one to be used for the Spring Cloud Task repository.
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== Requirements:
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* Java 17 or Above
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== Classes:
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* `MultipleDataSourcesApplication` - the Spring Boot Main Application.
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* `SampleCommandLineRunner` - the `CommandLineRunner` implementation for this task. It outputs the number of `DataSource` beans found in the context (should be 2).
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* `EmbeddedDataSourceConfiguration` - Configures two `DataSource` beans using embedded databases.
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* `ExternalDataSourceConfiguration` - Configures two `DataSource` beans using external databases.
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* `CustomTaskConfigurer` - Uses a Spring `@Qualifier` to specify the correct `DataSource` to use.
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== Build:
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[source,shell]
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----
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mvn clean package
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----
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== Execute sample using 2 embedded databases (default):
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[source,shell]
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----
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java -jar target/multiple-datasources-3.0.0.jar
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----
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== Native Build:
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[source,shell]
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----
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mvn -Pnative native:compile
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----
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== RUn sample using 2 embedded databases (default) with native app:
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[source,shell]
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----
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./target/multiple-datasources
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----
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== Execute sample using 2 external databases:
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Using the `external` profile, users will be able to establish both the default `spring.datasource` data source and a `second.datasource` data source.
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For example:
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[source,shell,indent=2]
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----
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export spring_datasource_url=<your db url>
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export spring_datasource_username=<your db user name>
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export spring_datasource_password=<your db user password>
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export spring_datasource_driverClassName=org.mariadb.jdbc.Driver
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export second_datasource_url=jdbc:<your db url>
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export second_datasource_username=<your db user name>
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export second_datasource_password=<your db user password>
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export second_datasource_driverClassName=org.mariadb.jdbc.Driver
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java -jar target/multiple-datasources-2.3.0-RELEASE.jar --spring.profiles.active=external
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----
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