Package org.springframework.web.servlet.view.velocity

Class VelocityConfigurer

java.lang.Object
org.springframework.web.servlet.view.velocity.VelocityEngineFactory
org.springframework.web.servlet.view.velocity.VelocityConfigurer
All Implemented Interfaces:
org.springframework.beans.factory.Aware, org.springframework.beans.factory.InitializingBean, org.springframework.context.ResourceLoaderAware, org.springframework.web.context.ServletContextAware, VelocityConfig
public class VelocityConfigurer extends VelocityEngineFactory implements VelocityConfig, org.springframework.beans.factory.InitializingBean, org.springframework.context.ResourceLoaderAware, org.springframework.web.context.ServletContextAware
JavaBean to configure Velocity for web usage, via the "configLocation" and/or "velocityProperties" and/or "resourceLoaderPath" bean properties. The simplest way to use this class is to specify just a "resourceLoaderPath"; you do not need any further configuration then. 
 <bean id="velocityConfig" class="org.springframework.web.servlet.view.velocity.VelocityConfigurer">
   <property name="resourceLoaderPath"><value>/WEB-INF/velocity/</value></property>
 </bean>
This bean must be included in the application context of any application using Spring's VelocityView for web MVC. It exists purely to configure Velocity; it is not meant to be referenced by application components (just internally by VelocityView). This class implements VelocityConfig in order to be found by VelocityView without depending on the bean name of this configurer. Each DispatcherServlet may define its own VelocityConfigurer if desired, potentially with different template loader paths.

Note that you can also refer to a pre-configured VelocityEngine instance via the "velocityEngine" property, e.g. set up by VelocityEngineFactoryBean, This allows to share a VelocityEngine for web and email usage, for example.

This configurer registers the "spring.vm" Velocimacro library for web views (contained in this package and thus in spring.jar), which makes all of Spring's default Velocity macros available to the views. This allows for using the Spring-provided macros such as follows: 

 #springBind("person.age")
 age is ${status.value}
Author:
Rod Johnson, Juergen Hoeller, Darren Davison
See Also:

  • Constructor Details

    • VelocityConfigurer

      public VelocityConfigurer()

  • Method Details

    • setVelocityEngine

      public void setVelocityEngine(org.apache.velocity.app.VelocityEngine velocityEngine)
      Set a pre-configured VelocityEngine to use for the Velocity web configuration: e.g. a shared one for web and email usage, set up via VelocityEngineFactoryBean.

      Note that the Spring macros will not be enabled automatically in case of an external VelocityEngine passed in here. Make sure to include spring.vm in your template loader path in such a scenario (if there is an actual need to use those macros).

      If this is not set, VelocityEngineFactory's properties (inherited by this class) have to be specified.

    • setServletContext

      public void setServletContext(javax.servlet.ServletContext servletContext)
      Specified by:
      setServletContext in interface org.springframework.web.context.ServletContextAware

    • afterPropertiesSet

      public void afterPropertiesSet() throws IOException, org.apache.velocity.exception.VelocityException
      Initialize VelocityEngineFactory's VelocityEngine if not overridden by a pre-configured VelocityEngine.
      Specified by:
      afterPropertiesSet in interface org.springframework.beans.factory.InitializingBean
      Throws:
      IOException
      org.apache.velocity.exception.VelocityException
      See Also:

    • postProcessVelocityEngine

      protected void postProcessVelocityEngine(org.apache.velocity.app.VelocityEngine velocityEngine)
      Provides a ClasspathResourceLoader in addition to any default or user-defined loader in order to load the spring Velocity macros from the class path.
      Overrides:
      postProcessVelocityEngine in class VelocityEngineFactory
      Parameters:
      velocityEngine - the current VelocityEngine
      See Also:
      • ClasspathResourceLoader

    • getVelocityEngine

      public org.apache.velocity.app.VelocityEngine getVelocityEngine()
      Description copied from interface: VelocityConfig
      Return the VelocityEngine for the current web application context. May be unique to one servlet, or shared in the root context.
      Specified by:
      getVelocityEngine in interface VelocityConfig
      Returns:
      the VelocityEngine