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--- unraid:virtual:webpageu20.04 [2021/09/10 19:06] – [Tomcat - Mysql linking / JDK / JAVA cleanup / activate error page] dirk
+++ unraid:virtual:webpageu20.04 [2021/09/10 19:18] (current) – dirk
@@ Line 141: / Line 141: @@
   * If webinf files need to be compiled:<code>sudo javac -cp /usr/share/java/servlet-api-3.0.jar:/usr/share/java/jsp-api-2.2.jar util/*.java</code>
   * reboot<code>sudo reboot -h now</code>
+  * To activate Error Pages (instead of actual code showing)
+    * At bottom of /var/lib/tomcat9/conf/web.xml page before </web-app> put: <code>
+    <error-page>
+        <error-code>404</error-code>
+        <location>/error.jsp</location>
+    </error-page>
+    <error-page>
+        <error-code>403</error-code>
+        <location>/error.jsp</location>
+    </error-page>
+    <error-page>
+        <error-code>500</error-code>
+        <location>/error.jsp</location>
+    </error-page></code>
+    * At bottom of /var/lib/tomcat9/conf/server.xml page before </Host> put: <code>
+    <Valve className="org.apache.catalina.valves.ErrorReportValve" showReport="false" showServerInfo="false" /></code>
+    * make an error.jsp file and put it in each webapps folder you would like it to show up
+    * Link: https://ravisankar1.wordpress.com/2020/05/21/tomcat-9-customize-default-404-error-page/
+    * Link: https://www.javatpoint.com/exception-handling-in-jsp
 ==== Install Samba ====
 <code>sudo apt-get install samba

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