Modify the port number of tomcat: By default, the port number of Tomcat is 8080. If the 8080 port number conflicts, you can modify the port number of Tomcat in the following ways: First, there is a conf folder under the root (installation) directory of Tomcat, double-click it to enter the conf folder, find the Server.xml file inside and open it. Second: found the following text in the file: