Springboot Filter中注入bean无效为null问题

package com.test.config;
 
import com.alibaba.druid.support.http.StatViewServlet;
import com.test.service.RequestFilter;
import javax.servlet.Filter;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.filter.DelegatingFilterProxy;
 
/**
 * @author lucasliang
 * @date 08/11/2018 5:56 afternoon filter load before dispathServlet ,so load RequestFilter as a
 * bean,new a RequestFilter
 */
@Configuration
public class FilterConfig {
 
  /*
    *@param: []
    *@return javax.servlet.Filter
    *@author lucasliang
    *@date 20/12/2018
    *@Description filter
   */
  @Bean
  public Filter uploadFilter() {
    return new RequestFilter();
  }
 
 
  /*
    *@param: []
    *@return org.springframework.boot.web.servlet.FilterRegistrationBean
    *@author lucasliang
    *@date 20/12/2018
    *@Description filter
   */
  @Bean
  @SuppressWarnings("unchecked")
  public FilterRegistrationBean testFilterRegistration() {
    FilterRegistrationBean registration = new FilterRegistrationBean();
    registration.setFilter(new DelegatingFilterProxy("uploadFilter"));
    registration.addUrlPatterns("/*");
    registration.addInitParameter("paramName", "paramValue");
    registration.setName("testFilter");
    registration.setOrder(1);
    registration.setEnabled(false);
    return registration;
  }
 
}

package com.test.service;
 
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig; 
 
public class RequestFilter implements Filter {
 
  private Logger logger = LoggerFactory.getLogger(Filter.class);
 
 
  @Value(value = "${encodeRules}")
  private String encodeRules; 
 
}