1.eclipse->help->EclipseMarketPlace->搜索apache-tomcat
2.如果eclipse Java EE Developer Tools这个版本过低 请升级一下
3.去window->preference->server查看是否有tomcat9.0
1.eclipse->help->EclipseMarketPlace->搜索apache-tomcat
2.如果eclipse Java EE Developer Tools这个版本过低 请升级一下
3.去window->preference->server查看是否有tomcat9.0