b7b7de5337
Also added instructions for native compilation for those apps that it is useful Added documentation for native compilation when using Single Step Batch Processing Updated documentaiton for native compilation for single app processing
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 clean package
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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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