Spring Download still requires a resource reference in web.xml

Question

Take a look at Spring Download now and want to do it right using the Java configuration and ultimately without web.xml . So, the tricky part is that a classic WAR file is required for the production environment.

Therefore, I specified a WAR for packaging in my Maven pom.xml file, and the main class is Application extends SpringBootServletInitializer .

It works well. Now the tricky part is that in a production environment, Datasource provided through JNDI . In a classic Spring application, you should reference this dependency in web.xml using resource-ref as follows:

  <resource-ref> <res-ref-name>jdbc/DefaultDB</res-ref-name> <res-type>javax.sql.DataSource</res-type> </resource-ref> 

All the studies carried out seem to indicate that I can get rid of web.xml and replace it with the corresponding context.xml file (in the META-INF folder):

  <Resource name="jdbc/DefaultDB" auth="Container" type="javax.sql.DataSource" factory="com.sap.jpaas.service.persistence.core.JNDIDataSourceFactory"/> 

Unfortunately this does not work: /

Interestingly, however, the regular servlet3 web application works just fine, see [ https://github.com/steinermatt/servlet3-sample] .

So, I am tempted to believe that the reason it does not work for the Spring application to boot is due to the w760> Boot Boot Boot ... boot process, so, really looking for any hints, suggestions for what it might be!

Any help is appreciated!

Answer 1

By default, JNDI is disabled in the integrated Tomcat.

You can use the following code to enable JNDI in tomcat. The following code will help you initialize the DataSource spring bean.

  @Bean public TomcatEmbeddedServletContainerFactory tomcatFactory() { return new TomcatEmbeddedServletContainerFactory() { @Override protected TomcatEmbeddedServletContainer getTomcatEmbeddedServletContainer( Tomcat tomcat) { tomcat.enableNaming(); return super.getTomcatEmbeddedServletContainer(tomcat); } @Override protected void postProcessContext(Context context) { ContextResource resource = new ContextResource(); resource.setName("jdbc/myDataSource"); resource.setType(DataSource.class.getName()); resource.setProperty("driverClassName", "your.db.Driver"); resource.setProperty("url", "jdbc:yourDb"); context.getNamingResources().addResource(resource); } }; } 

You can use the DataSource bean in your controller using automatic wiring.

 @Autowired private DataSource dataSource;