Maven is a build automation tool used to manage Java projects. It uses a Project Object Model (POM) file to describe a project, including its dependencies, plugins, and build configuration. Maven has a default build lifecycle with phases like compile, test, package, and deploy. It uses local, central, and remote repositories to retrieve dependencies at build time. Plugins can be used to extend Maven's capabilities for tasks like compiling code and generating reports.

1. Apache Maven
Dev.2015
AirconChen

2. Apache Maven
• project
• POM.xml
build( ), Dependencies( ),
SCMs( ),Release( ),Documentation( ),
Reporting( )
• build project
• project , ,

3. Apache Maven
• project
• plugin tools

5. JDK
Maven Java JDK
Apache Maven Download Site
2015/11/24 LastVersion:Apache Maven 3.3.9

6. Maven
• M2_HOME=C:Program FilesApache Software
Foundationapache-maven-3.2.5
• M2=%M2_HOME%bin
• MAVEN_OPTS=-Xms256m -Xmx512m
• “;%M2%” “Path”

7. POM

8. Project Object Model (POM)
• Maven
• project build project
• Maven POM Project
dependencies, plugins, goals, build profiles,
project version, developers, mailing list

9. • POM groupId, artifactId, version
Project repository Unique
Key
key
groupId com.fpg.ec
artifactId
authority, bid, j2sp
groupId+artifactId repository project
version
project
groupid+artifactid repository
com.fpg.ec:authority:1.0
com.fpg.ec:authority:1.1

10. • project POM.xml
• POM groupId, artifactId,version
• repository groupId:artifactId:version

11. Super POM
• POM POM
• Effective POM

12. Project Object Model (POM)
project project
mavenDependencies

13. Maven Build Lifecycle

14. Maven Build Lifecycle
1. validate
2. initialize
3. generate-sources
4. process-sources
5. generate-resources
6. process-resources

15. 7. compile
8. process-classes
9. generate-test-sources
10.process-test-sources
11.test-compile
12.process-test-classes
13.test
14.prepare-package
15.package

16. 14.prepare-package
15.package
16.pre-integration-test
17.integration-test
18.post-integration-test
19.verify
20.install
21.deploy

17. • mvn compile,
compile run
• package (JAR, WAR, EAR)
maven lifecycle

18. Repositories

19. Maven Repositories
• Local Repositories
Maven
local repository default: C:Users{Login Account}.m2repository
• Central Repositories
Maven
• Remote Repositories

20. Maven
1. Local repositories, 2
2. Central repositories,
Remote repositories 4
3. Remote repositories
4. Remote repositories

21. Plugin

22. • Maven plugin framework,
task plugin
• plugin jar, WAR, EAR , javac ,
, project project report
• mvn [plugin name]:[goals name]
• maven-compiler-plugin
compile goal . mvn compiler:compile

23. • Maven plugin
• build plugins
pom.xml <build>
• reporting plugins
pom.xml <reporting>

24. plugin

25. Create project

26. • Maven archetype project
• Archetype maven plugin PG
• cmd mvn archetype:generate
• eclipse maven project
• JavaPath JDK JRE, package

29. • mvn clean package
• jar target
• target/surefire-reports
• comile test

30. • snapshot
•
maven build repository
snapshot
• authority:1.0 authority
maven
snapshot
Snapshot( )

31. • Authority package
• WAR package
Authority
1.0
WAR
Authority1.0-SNAPSHOT
WAR
Authority1.0-SNAPSHOT
Auto Build

32. Dependencies

34. Scope

35. Lib1:1.0
Lib2:1.0
Lib3:1.0
Root:1.0 App-Core-lib:1.0
App-Data-lib:1.0
App-UI-WAR:1.0
• App-UI-WAR App-Core-lib App-Data-lib
• Root App-Core-lib App-Data-lib parent
• Root Lib1 lib2 Lib3

39. • archetype:generate
• maven-archetype-webapp
your artifactId
Webapp

40. Eclipse IDE + Maven

41. m2eclipse plugin

42. Run Web Project
by Maven

43. 1.New Maven Project

44. 2.default workspace location

45. 3. archetype webapp

46. 4.Define your coordinate

47. 5. project
servlet-api.jar

48. 6. servlet-api dependance

49. 7. tomcat maven plugin
http://tomcat.apache.org/maven-plugin-trunk/index.html

50. 8.Run as > Maven build

51. 9.Tomcat run

52. Module
Web layer project project,
web layer project POM.xml
<modules>
<module> project name 1</module>
<module> project name 2</module>
…
<module> project name N</module>
</modules>

53. But

54. Maven
•
•
•

55. • Maven (Gitbook)