1. ==> go to the bin directory and double-click STARTUP. BAT to check whether an error is returned. Generally, it will be reported.
2. Right-click my computer ==> advanced ==> environment variable to create a variable named java_home and the variable value is the upper layer of your JDK bin directory. Create a variable named catalina_home whose value is the upper layer of your Tomcat bin directory.
3. ==> double-click shutdown. bat under the Tomcat bin directory and repeat the 1 operation. Check whether an error is returned. It should not be reported.
4. ==> go to the Apache-Tomcat-5.5.12/conf directory and find the tomcat-users.xml and create a username and password.
<User Username = "admin" Password = "123" roles = "Admin, Manager"/>
5. then go to the server under the conf directory in the Tomcat main directory. XML file, find connector Port = "8080" and change it to connector Port = "8088"