How to get a Spring bean in a Servlet filter?

Try:

1. UsersConnectionRepository bean =   (UsersConnectionRepository)WebApplicationContextUtils.getRequiredWebApplicationContext(filterConfig.getServletContext()).getBean("usersConnectionRepository");  

Where usersConnectionRepository is a name/id of your bean in the application context. Or even better:

1. UsersConnectionRepository bean = WebApplicationContextUtils.getRequiredWebApplicationContext(filterConfig.getServletContext()).getBean(UsersConnectionRepository.class);  

Also have a look at GenericFilterBean

How to get a Spring bean in a Servlet filter?

原文：http://my.oschina.net/sunpr/blog/340966