springboot read tomcat-context.xml
java, junit, spring, tomcat
Solution
Spring Boot offer many ways to externalize your configuration...
You can define your datasource properties in your `tomcat/conf/Catalina/<host>` context descriptors.
You could define your jndi name:
<Context>
<Parameter name="spring.datasource.jndi-name" value="/pathToYourDatasource" />
</Context>
Or define the datasource:
<Context>
<Parameter name="spring.datasource.url" value="your url" />
<Parameter name="spring.datasource.username" value="your username" />
<Parameter name="spring.datasource.password" value="your password" />
</Context>
Even define the path to an `application.properties` and set here your configuration:
<Context>
<Parameter name="spring.config.location" value="/path/to/application.properties" />
</Context>
This way is not necessary set programmatically your hardcoded datasource and you can put another database configuration for testing in `src/test/resources/application.properties`:
spring.datasource.url=
spring.datasource.username=
spring.datasource.password=
Problem
Hi we got a spring application running on tomcat application-server. I want to add integration tests with Springboot in JUnit. I now got the problem that the embedded tomcat server does not store our datasource and therefore it cannot be looked up... If the server configuration does not have a datasource defined we got a fallback "context.xml" in our resources that should be used. But the embedded tomcat is not reading this configuration and I just cannot figure out, how to do this. The following is the point of failure in my JUnit Test, since it cannot find this JNDI-Name in the embedded tomcat: ``` @Bean public DataSource dataSource() { return new JndiDataSourceLookup().getDataSource("jdbc/myDB"); } ``` the fallback context.xml looks like this: ``` <Context> <!-- HSQL --> <Resource name="jdbc/myDB" auth="Container" type="javax.sql.DataSource" driverClassName="org.hsqldb.jdbcDriver" url="jdbc:hsqldb:mem:mymemdb;shutdown=true" username="SA" password="" maxTotal="100" maxIdle="5" maxWaitMillis="10000"/> <Manager pathname=""/> </Context> ``` how can I push this file into the embedded tomcat on startup?