Maven Available lifecycle phases

Packaging

The first, and most common way, is to set the packaging for your project via the equally named POM element . Some of the valid packaging values are jar, war, ear and pom. If no packaging value has been specified, it will default to jar.
Each packaging contains a list of goals to bind to a particular phase. For example, the jar packaging will bind the following goals to build phases of the default lifecycle.

No goals have been specified for this build，Well, this just tells you that Maven has no idea what it should do. In general, you have the following options to perform build steps。官方Introduction to the Build Lifecycle，Maven Available lifecycle phases共30個階段，下面將對每個階段詳細講解。

1. validate

validate the project is correct and all necessary information is available

2. initialize

initialize build state, e.g. set properties or create directories

3. generate-sources

generate any source code for inclusion in compilation

4. process-sources

5. generate-resources

6. process-resources

7. compile

compile the source code of the project

8. process-classes

9. generate-test-sources

10. process-test-sources

11. generate-test-resources

12. process-test-resources

13. test-compile

14. process-test-classes

15. test

test the compiled source code using a suitable unit testing framework. These tests should not require the code be packaged or deployed

16. prepare-package

17. package

take the compiled code and package it in its distributable format, such as a JAR.

18. pre-integration-test

19. integration-test

20. post-integration-test

21. verify

run any checks on results of integration tests to ensure quality criteria are met

22. install

install the package into the local repository, for use as a dependency in other projects locally

23 deploy

done in the build environment, copies the final package to the remote repository for sharing with other developers and projects.

24. pre-clean

25. clean

the clean lifecycle handles project cleaning

26. post-clean

27. pre-site

28. site

the site lifecycle handles the creation of your project’s site documentation

29. post-site

30. site-deploy

deploy the generated site documentation to the specified web server