spring boot token filter

fun (): FilterRegistrationBean {
    val filterBean = FilterRegistrationBean()
    filterBean.filter = JwtFilter()
    val including = appProperties.filter?.jwt?.include?.split(",")
    including?.forEach { it -> filterBean.addUrlPatterns(it) }
    return filterBean
}

@Component
class JwtFilter : GenericFilterBean() {
    private val log: Logger = LoggerFactory.getLogger(JwtFilter::class.java.simpleName)
    private val methods = arrayListOf(RequestMethod.GET.name, RequestMethod.POST.name, RequestMethod.PUT.name, RequestMethod.DELETE.name)

    override fun doFilter(servletRequest: ServletRequest?, servletResponse: ServletResponse?,
                          filterChain: FilterChain?) {
        val request = servletRequest as HttpServletRequest
        val response = servletResponse as HttpServletResponse
        val path = request.requestURI.substring(request.contextPath.length).replace("[/]+$", "")
        log.debug("doFilter(): path:$path")
        if (methods.contains(request.method)) {
            if (!FilterConfig.JwtExcludePath.containsKey(path)) {
                val token = request.getHeader(AuthConfig.TokenHeader)
                if (!JwtUtil.isValid(token, KeyConfig.publicKey)) {
                    response.sendError(401)
                    return
                }
            }
        }
        filterChain?.doFilter(request, response)
    }
}