servlets - 如何在java web应用程序中指定过滤器优先级？

Question

您好，我希望我可以定义两个这样的过滤器

  <filter-mapping>
    <filter-name>SecurityFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
  <filter-mapping>
    <filter-name>ContextFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

在我的 web.xml 文件中具有相同的模式/* ，我希望我可以确保 SecurityFilter 将在另一个之前执行。有没有办法做到这一点？

Answer 1

你刚刚做到了。来自 Sun 的 XSD :

The order in which filters are invoked is the order in which filter-mapping declarations that match a request URI for a servlet appear in the list of filter-mapping elements.