Jersey CDI Example

This example demonstrates how to develop RESTful web service with CDI managed beans and a Servlet 3.0 Web container.

Running the Example

This example should work on any Java EE 7 compliant application server. It has been tested on a standalone GlassFish 4 instance. The easiest way to get the application running there is to build it and deploy as follows:

mvn clean package
$AS_HOME/asadmin deploy target/cdi-webapp.war

Another option, introduced in Jersey 2.15, is to run this example in Grizzly HTTP server. To get the application running there you just invoke the following command:

mvn clean compile exec:java

Since Weld Servlet support is provided also for Apache Tomcat server, there is yet another way how to deploy the application. Use the tomcat-packaging maven profile to get the WAR archive packaged in a way that makes it ready for Tomcat 7+ deployment:

mvn -Ptomcat-packaging clean package
cp target/cdi-webapp.war $CATALINA_HOME/webapps

After you successfully deploy the application, visit the following URLs:

Description URL Expected Results
A managed bean with no use of injection whatsoever http://localhost:8080/cdi-webapp/helloworld Hello World
Shows injection of context objects into the fields of a managed bean. http://localhost:8080/cdi-webapp/singleton OK GET http://localhost:8080/cdi-webapp/singleton
Shows injection of context objects into the fields of a managed bean. http://localhost:8080/cdi-webapp/singleton/counter
0:standalone Grizzly (no resource injection support)
initial value, that gets incremented with each other request
42:Java EE compliant AS
Shows injection of context objects and path parameters into the fields of a managed bean. http://localhost:8080/cdi-webapp/other/C/D INTERCEPTED: OK GET http://localhost:8080/cdi-webapp/other, c=C, d=D
Shows injection of path and query parameters into the fields of a managed bean. http://localhost:8080/cdi-webapp/echofield/b?a=a ECHO a b
A managed bean that uses (but does not inject) a path parameter. http://localhost:8080/cdi-webapp/echo/a ECHO a