javax.faces.el.EvaluationException: Expression Error: Named

期待大神出现（Expression Error: Named Object: 'userService' not found.）
我得工程配置是JSF+Hibeinate+Spring三个结合起来的，出现这个错误，救我！
错误：
严重: Servlet.service() for servlet jsp threw exception
javax.faces.el.EvaluationException: Expression Error: Named Object: 'userService' not found.
at com.sun.faces.config.ManagedBeanFactory.getScopeForSingleExpression(ManagedBeanFactory.java:998)
at com.sun.faces.config.ManagedBeanFactory.hasValidLifespan(ManagedBeanFactory.java:931)
at com.sun.faces.config.ManagedBeanFactory.evaluateValueBindingGet(ManagedBeanFactory.java:892)
at com.sun.faces.config.ManagedBeanFactory.setPropertiesIntoBean(ManagedBeanFactory.java:553)
at com.sun.faces.config.ManagedBeanFactory.newInstance(ManagedBeanFactory.java:234)


------解决方案--------------------
spring 配置有问题！
------解决方案--------------------
因为没有配置过JSF，所以不知道faces-config.xml应该如何配置。但是目前现象应该是faces-config.xml中没有找到在applicationContext.xml配置的userService。建议找下Spring和JSF配合的资料查看下