Servlet Tomcat No Spring Example

Available as of Camel 2.11

This example is located in the examples/camel-example-servlet-tomcat-no-spring directory of the Camel distribution.
There is a README.txt file with instructions how to run it.

If you use maven then you can easily package the example from the command line:

About

This example demonstrates how you can create light-weight web applications without the need for Spring Framework.
The example contains a Camel routes that used the Servlet component to expose a http service.

Implementation

In the web.xml file in the src/main/webapp/WEB-INF folder we have both a CamelServlet and CamelContextListener defined.
The CamelServlet is mandatory to do when using the Servlet component. And the JndiCamelServletContextListener is used to bootstrap the Camel application.

Its the ServletListener Component that is used to bootstrap Camel in the web application. See more details at ServletListener Component.

The Camel route

The route is a simple Content Based Router defined in the DSL XML as shown:

Running the example

This example runs in any web container such as Apache Tomcat. For example to deploy in Apache Tomcat you will have to package the .war file and copy it to the webapp folder of Tomcat, which is the hot deploy folder.

Note: You have to use the version number of Camel you use. In this documentation we are using 2.11.0.

There is a main page at: http://localhost:8080/camel-example-servlet-tomcat-no-spring-2.11.0 which has more instructions.
You can then use a web browser and send a request to the http://localhost:8080/camel-example-servlet-tomcat-no-spring-2.11.0/camel/hello url.

See Also

• Examples
• Servlet Tomcat Example
• ServletListener Component
• Servlet
• HTTP