给出过滤器EncodingFilter的两种注册方式

好的，第一种注册方式是在web.xml中配置：

<filter>
   <filter-name>EncodingFilter</filter-name>
   <filter-class>com.example.EncodingFilter</filter-class>
   <init-param>
      <param-name>encoding</param-name>
      <param-value>UTF-8</param-value>
   </init-param>
</filter>
<filter-mapping>
   <filter-name>EncodingFilter</filter-name>
   <url-pattern>/*</url-pattern>
</filter-mapping>

第二种注册方式是使用注解：

@WebFilter(filterName = "EncodingFilter", urlPatterns = "/*")
public class EncodingFilter implements Filter {
   private String encoding;

   @Override
   public void init(FilterConfig filterConfig) throws ServletException {
      encoding = filterConfig.getInitParameter("encoding");
   }

   @Override
   public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
      request.setCharacterEncoding(encoding);
      response.setCharacterEncoding(encoding);
      chain.doFilter(request, response);
   }

   @Override
   public void destroy() {
   }
}