Maven2 builds the template project based on the project and uses it to create the project in bulk.

Maven 3 creates its own templates and uses templates to create projects

1. Set up a model MAVEN project: MyModel

2. Enter the MyModel project root directory
Execution: MVN archetype:create-from-project
Objective: To create a template project file

3. Enter Mymodel/target/generated-sources/archetype
Execution: mvn Install
Purpose: Install to the local MAVEN repository

4. Create a Project Catalog NewProject

5. Enter NewProject
Execution: MVN archetype:generate-darchetypecatalog=local
<-Dfilter=myModel> If a lot of it can be filtered (I found that even if the filter, the template loading speed is very slow.) ）
Purpose: Dialog mode to create a project using local engineering templates

The project was created without an accident.

6. Optional: mvn eclipse:eclipse into Eclipse project

Maven2 builds the template project based on the project and uses it to create the project in bulk.