How to Autowire a Spring Bean in a Servlet Filter

Date: 2024-05-27

Servlet filters, while powerful, cannot directly use Spring's @Autowired because they're managed by the servlet container, not the Spring context. This article details workarounds to inject Spring beans into servlet filters. Solutions include using SpringBeanAutowiringSupport, retrieving the context via WebApplicationContextUtils, employing FilterRegistrationBean in Spring Boot, or utilizing DelegatingFilterProxy. Choosing the right method depends on your application's setup.

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