By default, Tomcat is configured to listen on the following port numbers:
Of course, most of the time we are only interested in the HTTP port number - which is the port we have to type in the URL to access a deployed application, for example:
That will open a configuration page for Tomcat as follows:
Notice the port numbers are shown in the table on the right. Click to edit, for example:
That will change port number for HTTP from 8080 to 80. Press Ctrl + S to save the change and restart the server. We can spot the change of port number in the Console view:
Now, with port 80 we can remove the port number in the URL:
If we notice, there is a node called “Servers” in the Project Explorer/Package Explorer view. Expand this node, we will see:
Under the hood, Eclipse updates the server.xml file when we make change to the port numbers, just like the way we change Tomcat’s port numbers in general.
- Tomcat admin port: 8005
- HTTP/1.1: 8080
- AJP/1.3: 8009
Of course, most of the time we are only interested in the HTTP port number - which is the port we have to type in the URL to access a deployed application, for example:
http://localhost:8080/MyCoolAppEclipse allows us to change these port numbers easily with just a click of mouse. In the Servers view, double click on the server name:
That will open a configuration page for Tomcat as follows:
Notice the port numbers are shown in the table on the right. Click to edit, for example:
That will change port number for HTTP from 8080 to 80. Press Ctrl + S to save the change and restart the server. We can spot the change of port number in the Console view:
Now, with port 80 we can remove the port number in the URL:
http://localhost/MyCoolAppNOTES: Changing the Tomcat’s port numbers in Eclipse does not affect the default Tomcat installation on your computer (outside Eclipse IDE). It is because Eclipse makes a copy of Tomcat configuration in its workspace, by default.
If we notice, there is a node called “Servers” in the Project Explorer/Package Explorer view. Expand this node, we will see:
Under the hood, Eclipse updates the server.xml file when we make change to the port numbers, just like the way we change Tomcat’s port numbers in general.
