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copied!<p>For the files you listed, the simple answer assuming you are using all the defaults, the order is (note the <strong>conf</strong>/Catalina/localhost):</p> <pre><code>...tomcat/conf/context.xml ...tomcat/conf/Catalina/localhost/myapp.xml ...tomcat/webapps/myapp/META-INF/context.xml </code></pre> <p>I'm basing this (and the following discussion) on the <a href="http://tomcat.apache.org/tomcat-5.5-doc/config/context.html" rel="noreferrer">Tomcat 5.5 official documentation for the <strong>Context Container</strong></a>. </p> <p>So if that's the simple answer, whats the complete answer?</p> <p>Tomcat 5.5. will look in a couple of other places for <code><Context></code> elements beyond those you've listed (see the official docs).</p> <p>The <code>META-INF/context.xml</code> will never be opened if Tomcat finds a <code>Catalina/localhost/myapp.xml</code>. So if you actually have all the files above, its more correct to say the the <code>META-INF/context.xml</code> is <strong>irrelevant</strong>, not that it's the lowest precedence.</p> <p>If you say <code><Context override="true" ...></code> in your <code>Catalina/localhost/myapp.xml</code> that will make it the <strong>highest</strong> precedence, regardless of <code>conf/context.xml</code>. Same thing in your <code>META-INF\context.xml</code>, as long as you don't have a <code>Catalina/localhost/myapp.xml</code> (see previous paragraph).</p> <p>Also, the <code>/Catalina/localhost/</code> portion of the path in the files above actually comes out of the "default" <code>conf/server.xml</code> and matches the <code><Engine name="Catalina" defaultHost="localhost"></code>. If your <code>server.xml</code> uses different values for <code>name</code> and <code>defaultHost</code> in the <code><Engine></code>, that's the dir structure where Tomcat will look.</p> <p>Finally, for the <code>...tomcat\</code> portion of the files you listed, Tomcat uses the dir from the <code>$CATALINA_BASE</code> environment variable. If that's not set, then it uses the dir from the <code>$CATALINA_HOME</code> environment variable, which is the directory of the Tomcat installation. I like to set and use <code>$CATALINA_BASE</code> so that I don't "pollute" my Tomcat installation.</p>

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