java 如何排除/重定向 web.xml 或 Guice servlet 模块中的某些 url 模式？
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How to exclude/redirect certain url pattern in web.xml or Guice servlet module?
提问by datauser
I need to serve my main application with the url pattern "/*"so this pattern is matched to a Servlet.
The problem I am having is now all the css files and images located at "/css/all.css", "/images/" etc are going through this Servlet which is undesirable. I want these files to be directly accessed.
What is the better way to handle this situation?
我需要使用 url 模式为我的主应用程序提供服务，"/*"以便此模式与 Servlet 匹配。我现在遇到的问题是位于“/css/all.css”、“/images/”等的所有 css 文件和图像都通过这个不受欢迎的 Servlet。我希望直接访问这些文件。处理这种情况的更好方法是什么？
Note: I am using Guice's Servlet Module to configure the patterns.
注意：我使用 Guice 的 Servlet 模块来配置模式。
Thanks!
谢谢！
采纳答案by Justin Morgan
We need to know specifically which requests should be routed to your servlet, so that we know how to code the rules. I can't tell whether a) all requests except CSS and images should be sent to your servlet, or b) your servlet should only handle requests to a specific set of folders/directories. You will probably want to do one of two things:
我们需要具体知道哪些请求应该路由到您的 servlet，以便我们知道如何编写规则。我不知道是否 a) 除了 CSS 和图像之外的所有请求都应该发送到您的 servlet，或者 b) 您的 servlet 应该只处理对特定文件夹/目录集的请求。您可能想要做以下两件事之一：
Exclude specific folders:
排除特定文件夹：
^/(?!css|images).*
Or include specific folders:
或包含特定文件夹：
^/myservlet/.*
You should change those *symbols to +if, as you indicated in your earlier question, you want to require at least one character after the /in the pattern.
您应该将这些*符号更改为+如果，正如您在之前的问题中所指出的，您希望/在模式中的之后至少需要一个字符。
回答by Jens
This should work for you:
这应该适合你：
Make all your image/css etc resources go through the default servlet. And make a mapping like this:
使您的所有图像/css 等资源都通过默认的 servlet。并进行这样的映射：
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>*.xml</url-pattern>
<url-pattern>*.html</url-pattern>
<url-pattern>*.png</url-pattern>
<url-pattern>*.jpg</url-pattern>
<url-pattern>*.gif</url-pattern>
<url-pattern>*.js</url-pattern>
<url-pattern>*.css</url-pattern>
</servlet-mapping>
