Installing Tomcat 9

Last modified by Aurelie Bertrand on 2026/03/19 11:40

This guide provides installation for Tomcat 9 on Windows.

Installing Tomcat 9

  1. Download TomCat 9 from https://tomcat.apache.org/download-90.cgi (Binary Distributions  - > Core -> 32-bit/64-bit Windows Service Installer).
  2. Launch apache-tomcat-9.X.XX.exe.
  3. Accept the license agreement.
  4. In the Components list, select Tomcat (Service Startup & Native) and Start Menu Item.
    Tomcat1
  1. Leave the configuration settings at default.

Tomcat2.png

  1. Enter the path to the installation of the openjdk installed in step 1.

Tomcat3.png

  1. Set the TomCat 9 installation directory.

Tomcat4.png

  1. Click Install to start TomCat 9 installation.
  2. Open page http://localhost:8080 to check TomCat is working properly.
  3. Open the TomCat 9 installation directory then the bin directory and launch tomcat9w.exe.

  4. Modify the parameters contained in the Java tab :
    Tomcat5.png*

    • Adapt the paths to future digdash directories:
      Ddigdash.properties.path=E:\digdash\digdash.properties
       
    • To ensure that special characters are taken into account, add the parameter -Dfile.encoding=UTF-8 to the end of the JAVA_OPTS variable as below:
      Dfile.png
       
    • Add the parameters --add-opens=java.base/java.nio=org.apache.arrow.memory.core,ALL-UNNAMED --add-opens=java.base/sun.security.ssl=ALL-UNNAMED --add-opens=java.base/sun.security.util=ALL-UNNAMED in Java 9 options.

     

❗Important: Do not forget to increase the tomcat memory
Enter the same value in the “Initial memory” and “Maximum memory pool” fields in MB (example: “3000”)

Editing the server.xml file

  1. Open the server.xml file located in the \Apache Software Foundation\Tomcat 9.0\conf directory.
  <Connector port="8080" protocol="HTTP/1.1"
                connectionTimeout="20000"
                maxConnections="30000"
                maxCParametersCount="100000"
                maxThreads="10000" maxPostSize="62914560"
              redirectPort="8443" compression="on" />
  1. Change the path of the webapps to deploy.
<Host name="localhost"  appBase="E:/digdash/webapps/default"
            unpackWARs="true" autoDeploy="true">
      <Alias>digdash.client.com</Alias>

 

  1. Add the log valve and then, the securing valve.
<Valve className="org.apache.catalina.valves.ErrorReportValve" showReport="false" showServerInfo="false" /> 


<Valve className="org.apache.catalina.valves.RemoteIpValve"
                internalProxies="127\.0\.[0-1]\.1"
                remoteIpHeader="X-Forwarded-For"
                requestAttributesEnabled="true"
                protocolHeader="X-Forwarded-Proto"
                protocolHeaderHttpsValue="https"/>

Editing the context.xml file

  1. Open the context.xml file located in the \Apache Software Foundation\Tomcat 9.0\conf directory.
  2. Add the following XML tag in the Context section:
<Resources cachingAllowed="true" cacheMaxSize="500000"/>