2. Then a list of servers will be displayed at the bottom of Eclipse.

3. If there is no new server, it is as shown below. Click on this text section.

4. Then pop up this option and select the version of Tomcat.

5, and then add the corresponding project.

6. After adding, double-click the location of Tomcat v8.5 Server in localhost with the left mouse button, and the location of this setting will be displayed, so that you can click Ports on the right, which is commonly called Http, to modify it.

7. Then click Save on the top left to save the modified settings.