如何在web.xml中为Tomcat映射welcome-file的过滤器？ [英] How to map a filter for welcome-file in web.xml for Tomcat?

问题描述

我创建了一个过滤器来检查带有请求对象的 Cookie 和转发相应的请求感谢这个和这个问题。现在我只想为欢迎文件过滤 code>因为我在 web.xml 中声明了它。

假设我有 welcome-file as index.html 然后我必须为映射过滤器 www.example.com / 和 www.example.com/index.html 但不能用于其他任何内容，例如 www .example.com / foo / * 或 www.example.com / * 是不允许的，我的意思是什么，除了 welcome-file 请求。
我正在使用Apache Tomcat 7.0.22容器。

I have created a Filter to check the Cookies with request object and forward the request accordingly thanks to this and this question..Now I want to map this Filter for just the welcome-file as I have declared it in web.xml.
Say I have welcome-file as index.html then I have to map the Filter for both www.example.com/ and www.example.com/index.html but not for anything else such as www.example.com/foo/* or www.example.com/* is not allowed, I mean NOT anything except welcome-file request. I am using Apache Tomcat 7.0.22 container.

推荐答案

只需将这些添加到您的web.xml

Just add these to your web.xml

<filter>
  <filter-name>myFilter</filter-name>
  <filter-class>com.examples.myFilter</filter-class>
</filter>

<filter-mapping>
  <filter-name>myFilter</filter-name>
  <url-pattern>/index.html</url-pattern>
</filter-mapping>

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