maxActive is straight forward. maxIdle can be explained in this way – say you have 100 max Active connections and say you set maxIdle to 80. Assuming there are no requests going to the database, only 80 connections will be tested (via the validationquery) and will stay active. The other 20 will be closed. So … Read more
If it’s a static site, then starting with Tomcat 7.0.41, you can easily control CORS behavior via a built-in filter. References: Tomcat 7 Tomcat 9 Pretty much the only thing you have to do is edit the global web.xml in CATALINA_HOME/conf and add the filter definition: <!– ================== Built In Filter Definitions ===================== –> … … Read more
If you want Tomcat to listen to multiple ports, you need to setup a connector for each port. To get each port mapped to a different application, you need need to wrap each connector in a service and create a host with it’s own appBase. Example of service definition in server.xml: <Service name=”foo”> <Connector port=”80″ … Read more
As said before encrypting passwords is just moving the problem somewhere else. Anyway, it’s quite simple. Just write a class with static fields for your secret key and so on, and static methods to encrypt, decrypt your passwords. Encrypt your password in Tomcat’s configuration file (server.xml or yourapp.xml…) using this class. And to decrypt the … Read more
<url-pattern>*NEXTEVENT*</url-pattern> The URL pattern is not valid. It can either end in an asterisk or start with one (to denote a file extension mapping). The url-pattern specification: A string beginning with a ‘/’ character and ending with a ‘/*’ suffix is used for path mapping. A string beginning with a ‘*.’ prefix is used as … Read more
As Bhavik Shah says, you can do it in JAVA_OPTS, but the recommended way (as per catalina.sh) is to use CATALINA_OPTS: # CATALINA_OPTS (Optional) Java runtime options used when the “start”, # “run” or “debug” command is executed. # Include here and not in JAVA_OPTS all options, that should # only be used by Tomcat … Read more
Intelli J doesn’t use maven to build the project it uses its own build process. It uses the pom file as a description of the project. This means a couple of things, if you want to build an artifact such as a war file when running in tomcat then all you have to do is … Read more
It can be changed in the $CATALINA_BASE/conf/server.xml in the <Host />. See the Tomcat documentation, specifically the section in regards to the Host container: Tomcat 6 Configuration Tomcat 7 Configuration The default is webapps relative to the $CATALINA_BASE. An absolute pathname can be used.
I’m the HTTP/2 implementer in Jetty, and I watch out other projects implementing HTTP/2. Tomcat’s Mark Thomas has outlined support for HTTP/2 for Tomcat 9. Update Jan 2017: Tomcat 8.5 supports HTTP/2 see @joe-aldrich answer https://stackoverflow.com/a/37889873/2027465 Considering that Servlet 4.0 is going to have as a target HTTP/2 support, and that HTTP/2 support requires ALPN … Read more
JDBC drivers register themselves in the JVM-wide singleton DriverManager which is shared by all web apps. If you have the same (as in class name) JDBC driver register twice from two different web apps, this might cause your problem. This is even more problematic if your web apps use different versions of the same JDBC … Read more