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Servlet Tomcat ExampleAvailable as of Camel 2.7 This example is located in the If you use maven then you can easily package the example from the command line: mvn package AboutThis example demonstrates how you can use Servlet to expose a http service in a Camel route. ImplementationIn the <web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <display-name>My Web Application</display-name> <!-- location of spring xml files --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:camel-config.xml</param-value> </context-param> <!-- the listener that kick-starts Spring --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- Camel servlet --> <servlet> <servlet-name>CamelServlet</servlet-name> <servlet-class>org.apache.camel.component.servlet.CamelHttpTransportServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <!-- Camel servlet mapping --> <servlet-mapping> <servlet-name>CamelServlet</servlet-name> <url-pattern>/camel/*</url-pattern> </servlet-mapping> </web-app>The route is a simple Content Based Router defined in the DSL XML as shown:Error rendering macro 'code': Invalid value specified for parameter 'java.lang.NullPointerException' <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:camel="http://camel.apache.org/schema/spring" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://camel.apache.org/schema/spring http://camel.apache.org/schema/spring/camel-spring.xsd"> <camelContext xmlns="http://camel.apache.org/schema/spring"> <route id="helloRoute"> <!-- incoming requests from the servlet is routed --> <from uri="servlet:hello"/> <choice> <when> <!-- is there a header with the key name? --> <header>name</header> <!-- yes so return back a message to the user --> <transform> <simple>Hi I am ${sysenv.HOSTNAME}. Hello ${header.name} how are you today?</simple> </transform> </when> <otherwise> <!-- if no name parameter then output a syntax to the user --> <transform> <constant>Add a name parameter to uri, eg ?name=foo</constant> </transform> </otherwise> </choice> </route> </camelContext> </beans> Running the exampleThis example runs in Apache Tomcat, so you will have to package the .war file and copy it to the There is a main page at: See Also |