TOMCAT MANAGER APPLICATION HOW TO
TOMCAT MANAGER APPLICATION INSTALL

Via the Text Web ServiceĪgain, the text service equivalents are straightforward. This also destroys sessions that have been idle for the specified period of minutes. On the home page, there is a button to Expire sessions. We can also manually destroy sessions by selecting them and choosing Invalidate selected sessions: It shows the duration of the session, how long it has been inactive, and how long until it expires (30 minutes by default). In the example below, we can see there are two user sessions for the manager application. We can view current user sessions by following the link in the Sessions column for all listed applications. The Tomcat Manager App shows details on current user sessions and allows us to expire sessions manually. In addition to managing applications, we can manage user sessions. Remember, though, we only need to click the reload button to achieve the same in the web application. Here is an example of how we can reload the docs application using the text service: curl -u tomcattext:baeldung OK - Reloaded application at context path However, this only works for applications that are unpacked into a directory and not deployed as WAR files.

We can also reload applications to pick up changes to classes or resources. The path query parameter indicates which application to manage and must match the context path of the application. Let's stop and then start the examples application using a curl request: curl -u tomcattext:baeldung OK - Stopped application at context path Ĭurl -u tomcattext:baeldung OK - Started application at context path Likewise, we can stop and start applications using the text service. The outcome and any problems are reported in the message field at the top of the page. In the case of the web application, stopping and starting the applications is just a matter of clicking the buttons on the web page. One of the key pieces of functionality that the Tomcat Manager App allows us to do is stop, start, and reload applications. For example, we can see the manager application is running and has one active session: OK - Listed applications for virtual host This time we make a curl request using the tomcattext user to authenticate: curl -u tomcattext:baeldung Just like the web page, the response shows all the deployed applications with their current state and number of active sessions. There are also several buttons we can use to manage the applications:Īlternatively, we can list all the deployed applications using the text web service. For each application, we can see if it is running or not, the context path, and the number of active sessions. Once logged in, the web page lists all the deployed applications at the top of the page. We need to authenticate as the tomcatgui user to do so. Let's open to view the Tomcat Manager App webpage.

TOMCAT MANAGER APPLICATION HOW TO

In this section, we'll learn how to see a list of the currently deployed applications. In the next section, we'll see how we can use these two users to demonstrate the capabilities of the Tomcat Manager App.

tomcattext – has the manager-script role and can use the text-based web service.tomcatgui – has the manager-gui role and can use the web-based application.Let's go ahead and add such users by editing the conf/tomcat-users file: By default, it can only be accessed by users with the correct permissions. However, before we can access these services, we need to configure Tomcat. While the corresponding text service is available at: The web-based application is available at: The text-based service is ideal for scripting, whereas the HTML application is designed for humans. We have two options here - we can choose to use the web-based (HTML) application or the text-based web service. Now, let's take a look at how to use the Tomcat Manager App. In this tutorial, we'll be using the latest Tomcat 9 version. Please refer to our Introduction to Apache Tomcat guide for help installing Tomcat.

TOMCAT MANAGER APPLICATION INSTALL

Installing Tomcatīefore we delve into the Tomcat Manager App, we first need to install a Tomcat server.įortunately, installing Tomcat is an easy process. Besides allowing us to manage deployed applications, we can also see the status and configuration of the server and its applications. In a nutshell, the Tomcat Manager App is a web application that is packaged with the Tomcat server and provides us with the basic functionality we need to manage our deployed web applications.Īs we're going to see, the application has many features and services. In this tutorial, we're going to take an in-depth look at the Tomcat Manager Application.

Tomcat manager application