Why is my @Autowired object null?

Question

I\'ve the below JSF managed bean:

package com.example;

import java.io.Serializable;
import javax.faces.bean.ManagedBean;
import org.springframework.beans.factor         


        

Answer 1

You cannot mix annotations and contexts like you're attempting here.

First, to inject a Spring bean (or really, any bean) into a JSF managed bean, use the @ManagedProperty annotation. So, if everything else is setup properly (Spring-wise, including the Spring Faces EL resolver), you should have:

@ManagedProperty("#{someService}")
private SomeService someService;

When you declare a class as a @ManagedBean, it's outside the context of Spring. As a result, @Autowired has no power here; spring cannot inject anything into anything that's outside of its context.

If you want to use the pair of @Component and @Autowired, you need to remove @ManagedBean so that it becomes a Spring managed bean instead of a JSF managed bean.