3.4. Bootstrapping a Spring Context in a WAR
Overview
You can bootstrap a Spring context in a WAR using Spring's ContextLoaderListener class.
Bootstrapping a Spring context in a WAR
For example, the following
web.xml
file shows how to boot up a Spring application context that is initialized by the XML file, /WEB-INF/applicationContext.xml
(which is the location of the context file in the generated WAR package):
<?xml version="1.0" encoding="ISO-8859-1"?> <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>Camel Routes</display-name> <!-- location of spring xml files --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/applicationContext.xml</param-value> </context-param> <!-- the listener that kick-starts Spring --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> </web-app>
Maven dependency
In order to access the
ContextLoaderListener
class from the Spring framework, you must add the following dependency to your project's pom.xml
file:
<dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring-version}</version> </dependency>
Where the
spring-version
property specifies the version of the Spring framework you are using.