Tomcat startup cannot find the corresponding startup war (war exploded)-maven project is a gray solution-the war package of the idea web project is missing

1. The maven project is gray

1.1 Situation screenshot

1.2 Solution

File -> Setting -> Search for maven -> Expand Maven -> Ignored Files -> Remove the check of the ignored file (the reason is that the file is ignored)

1.3 Successful solution

2. The Tomcat startup item has no war package corresponding to the project (war exploded)

2.1 My project directory

2.2 Tomcat Deployment deployment adds war without corresponding project

2.3 Open maven to compare two different web modules and find that the war package is missing

2.4 Solution: reload pom.xml

2.5 Problem solving

The deployment of tomcat has the war/war exploded of the corresponding project