重写tomcat 8 URL [英] Re-writing tomcat 8 urls

问题描述

我在两个不同的上下文中部署了两个tomcat应用程序:

I have two tomcat applications deployed under two different contexts:

someurl.com/context1/
someurl.com/context2/

我需要拦截以下形式的网址:

I need to intercept urls in the form:

someurl.com/clientname/context1/ 

并将其重定向到url:

and redirect them to url:

someurl.com/context1/clientname

客户端名称"是动态的

我尝试在tomcats server.xml文件的元素中使用重写阀，但它仍然仅适用于包含上下文的URL.即:

I have tried using a rewrite valve in the element of my tomcats server.xml file, but it still works only for urls which include the context. i.e.:

someurl.com/context1/clientname/context1 

被重写为

someurl.com/context1/clientname

使用以下正则表达式:

RewriteCond %{REQUEST_URI}  ^.*/context1/.*$

RewriteRule ^.*/context1/(.*)$  /context1/$1    [L]

是否可以通过一种不考虑上下文的​​方式来全局重写url?

Is there a way to globally re-write urls in such a way that the context is not taken into account?

推荐答案

经过大量挖掘，我发现了一种实现所需结果的简单方法.诀窍是在没有任何实际应用程序部署的情况下建立根上下文.然后向该根上下文添加RewriteValve，如下所示:

After a lot of digging around I found out a really easy way of achieving the desired result. The trick is to set up a root context without any actual application being deployed there. Then to that root context a RewriteValve is added like this:

<?xml version='1.0' encoding='utf-8'?>
<Context docBase="ROOT" path="/" reloadable="true" crossContext="true">
    <Valve className="org.apache.catalina.valves.rewrite.RewriteValve"/>
</Context>

将crossContext设置为true很重要，以便根上下文可以与较低级别的上下文进行通信.

It is important that the crossContext is set to true, so the root context can communicate with the lower level contexts.

然后在根上下文的WEB-INF中使用以下rewrite.config可以解决问题:

Then in WEB-INF of the root context the following rewrite.config will do the trick:

RewriteRule ^/.*/context1/(.*)$     /context1/$1    [L]

基本上意味着:捕获所有形式为 clientname/context1/etc 的ur，并将其路由到 context1/clientname/etc

which basically means: capture all ur's which have the form: clientname/context1/etc and route them to context1/clientname/etc

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