如何使用J2EE容器（Websphere）全局设置RESPONSE标头 [英] How to set RESPONSE Headers globally using J2EE container (Websphere)

问题描述

有没有办法在Web服务器级别（web.xml）为所有事务设置标头？具体来说，我想这样做：

Is there a way, at the web server level (web.xml) to set headers for all transactions? Specifically, I would like to do this:

response.setHeader("Cache-Control", "no-cache, no-store");
response.setDateHeader("Expires", -1);

。我似乎记得可以在Web.xml中设置标头。还有其他解决方案吗？

at the application level. I seem to recall that headers could be set in the Web.xml. Are there other solutions?

推荐答案

实现 javax.servlet.Filter ，在 doFilter（）方法中编写适当的逻辑，最后在上将其映射到 web.xml > url-pattern / * 。

Implement a javax.servlet.Filter, write appropriate logic in doFilter() method and finally map it in web.xml on an url-pattern of /*.

顺便说一下，'魔术' 'set在所有已知的浏览器和代理中都有效：

By the way, the 'magic' set which works in all known browsers and proxies are those:

response.setHeader("Cache-Control", "no-cache, no-store, must-revalidate"); // HTTP 1.1.
response.setHeader("Pragma", "no-cache"); // HTTP 1.0.
response.setDateHeader("Expires", 0); // Proxies.

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