如何在servlet过滤器中获取Spring bean？

尝试：

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

usersConnectionRepository

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

还可以看看GenericFilterBean及其子类。