如何在Spring Filter中获取路径变量？

@Controller
public class MyController {

    @GetMapping("/hello/{name}")
    public String hello(@PathVariable("name") String name, Model model) {
        model.addAttribute("name", name);
        return "hello";
    }
}

public class MyFilter implements Filter {

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        HttpServletRequest httpRequest = (HttpServletRequest) request;
        String pathInfo = httpRequest.getPathInfo();

        // 获取路径变量
        String[] pathParts = pathInfo.split("/");
        String name = pathParts[pathParts.length - 1];

        // 将路径变量存储在请求属性中，以便在控制器中使用
        httpRequest.setAttribute("name", name);

        // 继续处理请求
        chain.doFilter(request, response);
    }

    // 其他方法...
}

@Configuration
public class AppConfig {

    @Bean
    public FilterRegistrationBean<MyFilter> myFilter() {
        FilterRegistrationBean<MyFilter> registrationBean = new FilterRegistrationBean<>();
        registrationBean.setFilter(new MyFilter());
        registrationBean.addUrlPatterns("/hello/*");
        return registrationBean;
    }
}