dubbo filter中有关bean注入和配置文件读取方式

	private Environment environment;

    public void setEnvironment(Environment environment){
        this.environment=environment;
    }
    @Override
    public Result invoke(Invoker<?> invoker, Invocation invocation) throws RpcException {
        String headerTopic = environment.getProperty("spring.kafka.header-topic");
        Result result = invoker.invoke(invocation);
        return result;
    }

private KafkaTemplate<String, String> headKafkaTemplate;
public void setHeadKafkaTemplate(KafkaTemplate<String, String> headKafkaTemplate){
        this.headKafkaTemplate = headKafkaTemplate;
    }

public class TokenAuthFilter implements Filter {
 
    private final static Logger log = LoggerFactory.getLogger(TokenAuthFilter.class);
 
    @Autowired
    private APIUtil apiUtil;
}

@Configuration
public class WebConfig {
 
  @Bean
    public Filter tokenAuthFilter() {
 
        return new TokenAuthFilter(); //第一步：先将filter放入容器
    }
    /**
     * 注册filter，统一处理api开头的请求
     * @return FilterRegistrationBean
     */
    @Bean
    public FilterRegistrationBean tokenAuthFilterRegistration() {
        FilterRegistrationBean registration = new FilterRegistrationBean();
        // 第二步：DelegatingFilterProxy把servlet 容器中的filter同spring容器中的bean关联起来
        registration.setFilter(new DelegatingFilterProxy("tokenAuthFilter"));
        registration.addUrlPatterns("/api/*");
        registration.setName("tokenAuthFilter");
        registration.setOrder(1);
        return registration;
    }
}

@Override
public void init(FilterConfig filterConfig) throws ServletException {
    ApplicationContext context = WebApplicationContextUtils.getWebApplicationContext(filterConfig.getServletContext());
    RedisTemplate demoBean = (RedisTemplate)context.getBean("redisTemplate");
    System.out.println(demoBean);
 }