get the Autowired service in filter class

Question

there is an error:

java.lang.IllegalStateException: 
No WebApplicationContext found: no ContextLoaderListener registeredatorg.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:252)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

and my web.xml config is declared a DelegatingFilterProxy . if a have different auth rule, how can i write in my filter? by those diff url name?

public class SecurityFilter implements Filter{
@Autowired
private TokenService tokenService;
@Override
public void init(FilterConfig filterConfig) throws ServletException {
}

@Override
public void doFilter(ServletRequest request, ServletResponse response,
        FilterChain chain) throws IOException, ServletException {
    String token = request.getParameter("token");//:TODO}}

and spring config is:

<bean id="securityFilter" class="xx.filter.SecurityFilter"></bean>

Answer 1

The filter class is not an spring anootated class and hence won't load any of the dependent spring related classes. Ideally if you annotate UserFilter as a spring component then your @autowired dependents will also load.