疑问，运行Servlet配置web.xml时出现问题

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www. xmlns:web="http://xmlns. xsi:schemaLocation="http://xmlns. http://java.class>filter.EncodingFilter</filter-class>
  </filter>
  <filter-mapping>
  <filter-name>EncodingFilter</filter-name>
  <url-pattern>/*</url-pattern>
  </filter-mapping>
  
  
  <servlet>
    <servlet-name>DealServlet</servlet-name>
    <servlet-class>servlets.DealServlet</servlet-class>
  </servlet>
  <servlet-mapping>
    <servlet-name>DealServlet</servlet-name>
    <url-pattern>/servlet/DealServlet</url-pattern>
  </servlet-mapping>

 

 <filter>
  <filter-name>EncodingFiter</filter-name>
  <filter-class>filter.EncodingFilter</filter-class>
  </filter>
  <filter-mapping>
  <filter-name>EncodingFilter</filter-name>
  <url-pattern>/*</url-pattern>
  </filter-mapping>
</web-app>