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301 redirect in tomcat server

Hi, anyone explain me how to do 301 redirect in tomcat server, my problem is i have a index.html file in root folder of tomcat server, where this index.html file is forwarded to another folder root/xx/ui/ folder where my original index.html file is present, so now i want to 301 redirect the root insex.html to ui/index.html file. Please anyone help me.

Anthony Garcia

Are you sure you want to do a redirect and not a rewrite rule? See this blog post for the difference.
https://blogs.iis.net/owscott/url-rewrite-vs-redirect-what-s-the-difference.

What version of tomcat are you using. I think past tomcat 8 you can use a rewrite valve. You can enable it by adding it to the context.xml file, so it looks something like this.

<?xml version="1.0" encoding="UTF-8"?>
<!-- The contents of this file will be loaded for each web application -->
<Context>
    <!-- Add This rewrite valve -->
    <Valve className="org.apache.catalina.valves.rewrite.RewriteValve" />
    
    <!-- Default set of monitored resources. If one of these changes, the    -->
    <!-- web application will be reloaded.                                   -->
    <WatchedResource>WEB-INF/web.xml</WatchedResource>
    <WatchedResource>${catalina.base}/conf/web.xml</WatchedResource>
</Context>

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Then you need to create a file called rewrite.config and put it in the WEB-INF directory.
This will have you rewrite rule which can also set redirect codes.
Inside of the file you can put the following rewrite rule

RewriteRule ^index.html$ ui/index.html [R=301,L]

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