mvn test - 覆盖 application.properties 中的值

Question

I have these properties in my application.properties :

spring.datasource.url=jdbc:postgresql://localhsost:5432/myDatabase
spring.datasource.username=myUsername

I would like to run mvn test with other values than the above, for example:

spring.datasource.url=jdbc:postgresql://my.test.server.com:5432/myDatabase
spring.datasource.username=anotherUsername

I tried the following

mvn test -Drun.arguments='--spring.datasource.jdbc:postgresql://my.test.server.com:5432/myDatabase --spring.datasource.username=anotherUsername'

and without spring prefix:

mvn test -Drun.arguments='--datasource.jdbc:postgresql://my.test.server.com:5432/myDatabase --datasource.username=anotherUsername'

But this does not seem to work. How can I override the values in the application.properties in context of running mvn test ?

Answer 1

Something like this should work:

  <plugin>
    <artifactId>maven-surefire-plugin</artifactId>
    <version>2.20.1</version>
    <configuration>
      <systemPropertyVariables>
        <spring.datasource.jdbc>value</spring.datasource.jdbc>
      </systemPropertyVariables>
    </configuration>
  </plugin>

But more often we do this by placing a test version of application.properties into the src/test/resources . During testing, that file will have greater priority.

Answer 2

When overriding parameters in the command line, use a comma as separator, not a space:

mvn test -Drun.arguments='--spring.datasource.url=...,--spring.datasource.username=...'

This should work too:

mvn test -Dspring.datasource.url=... -Dspring.datasource.username=...

Edit from april 2021

The syntax above was valid for Spring Boot 1.X. With Spring Boot 2.0/2.1, use:

mvn test -Dspring-boot.run.arguments='--spring.datasource.url=...,--spring.datasource.username=...'

And with Spring Boot 2.2, the syntax was changed again (use a whitespace as separator):

mvn test -Dspring-boot.run.arguments='--spring.datasource.url=... --spring.datasource.username=...'

Other answers and comments mention using profiles and put a custom application.properties in /src/test/resources , which is not a viable solution for you since you use different pipelines, but if I remember correctly, you can even use application-{profile}.properties in /src/test/resources . This way you should be able to maintain one test profile per pipeline, where you put your custom parameters, and then test your pipeline with:

mvn test -Dspring.profiles.active=foobar

Answer 3

Option 1 ( preferred as is Maven structure-specific )

Create an application.properties under the test/resources to be picked up for your testing purposes

Option 2 ( Spring Test fine-tuning a particular Test class alone )

Override your properties directly on the Test class by inlining the ones you want by using @TestPropertySource

Option 3 ( Spring Boot - multiple properties files or a single YAML file )

Group the props under a Spring Profile ( Example here ) and invoke it directly from maven: mvn test -Dspring.profiles.active="myOtherSpringProfile"

Answer 4

Create another application-dev.properties file and paste:

spring.datasource.url=jdbc:postgresql://my.test.server.com:5432/myDatabase
spring.datasource.username=anotherUsername

Then run with the option -Dspring.profiles.active=dev in your mvn command.

• Eg: mvn test -Dspring.profiles.active=dev

You can add as many profiles as needed.

• syntax: application-<profile name>.properties

Answer 5

I don't see many people using the environment variable option. If you set an environment variable for corresponding properties, then the value in the environment variable will be used. eg

Environment variables: SPRING_DATASOURCE_URL="jdbc:postgresql://my.test.server.com:5432/myDatabase" SPRING_DATASOURCE_USERNAME=anotherUsername

Inside the properties file: spring.datasource.url=jdbc:postgresql://localhsost:5432/myDatabase spring.datasource.username=myUsername

The application will use the values in the environment variables. For this to work you'll need to follow the naming convention. Use uppercase and replace "." with "_".