JavaServer Faces (JSF) is the JCP’s standard component-based, event-driven web user interface framework. It is an official part of the Java EE umbrella but also individually usable, e.g. through embedding Mojarra or MyFaces within Tomcat.

Please note that recent versions of JSF became closely tied to CDI infrastructure in application servers, with some new JSF functionality only working in such an environment. Spring’s JSF support is not actively evolved anymore and primarily exists for migration purposes when modernizing older JSF-based applications.

The key element in Spring’s JSF integration is the JSF ELResolver mechanism.

Spring Bean Resolver

SpringBeanFacesELResolver is a JSF compliant ELResolver implementation, integrating with the standard Unified EL as used by JSF and JSP. It delegates to Spring’s “business context” WebApplicationContext first and then to the default resolver of the underlying JSF implementation.

Configuration-wise, you can define SpringBeanFacesELResolver in your JSF faces-context.xml file, as the following example shows:


Using FacesContextUtils

A custom ELResolver works well when mapping your properties to beans in faces-config.xml, but, at times, you may need to explicitly grab a bean. The FacesContextUtils class makes this easy. It is similar to WebApplicationContextUtils, except that it takes a FacesContext parameter rather than a ServletContext parameter.

The following example shows how to use FacesContextUtils:

ApplicationContext ctx = FacesContextUtils.getWebApplicationContext(FacesContext.getCurrentInstance());