Introduction to Maven
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Maven is a build tool that uses conventions for configuration and project layout. It defines a standard project structure and build lifecycle that includes phases like compile, test, package, and install. Maven handles dependency management by allowing dependencies to be declared in the project object model (POM) and resolving them from repositories. The local repository caches dependencies for reuse across projects.
Introduction to Maven
- 2. ● Maven goal and key ideas ● Configuration by conventions ● Project layout ● Build lifecycle ● Dependency management TOC
- 6. ● shell script ● make (1977) ● Apache Ant (2000) ● MSBuild (2005) ● Apache Maven (2002) Examples: Build tools
- 7. make
- 8. Maven Vs. Ant Holy War
- 9. <?xml version="1.0" encoding="UTF-8"?> <project name="AntProject" basedir="." default="jar"> <property file="nbproject/nbjdk.properties"/> <property name="user.properties.file" location="${netbeans.user}/build. properties"/> <property file="${user.properties.file}"/> <import file="nbproject/jdk.xml"/> <target name="-init" depends="-jdk-init"> <property file="user.build.properties"/> <property file="build.properties"/> </target> <target name="compile" depends="-init" description="Compile main sources."> <mkdir dir="${classes.dir}"/> <depend srcdir="${src.dir}" destdir="${classes.dir}" cache="build/depcache" <classpath path="${cp}"/> </depend> <javac srcdir="${src.dir}" destdir="${classes.dir}" source="1.5" debug="${d <classpath path="${cp}"/> <compilerarg value="-Xlint:unchecked"/> </javac> <copy todir="${classes.dir}"> <fileset dir="${src.dir}" excludes="${jar.excludes}"/> </copy> </target> <target name="jar" depends="compile" description="Build JAR file for main sour <jar jarfile="${jar}" compress="true"><!-- manifest="${manifest}" --> <fileset dir="${classes.dir}"/> </jar> </target> Example: Ant Script <target name="run" depends="compile" description="Run application."> <fail unless="main.class">Must set property 'main.class' (e.g. in build.pro <java classname="${main.class}" fork="true" failonerror="true"> <classpath path="${run.cp}"/> <jvmarg value="-ea"/> </java> </target> <target name="compile-tests" depends="compile"> <mkdir dir="${test.classes.dir}"/> <depend srcdir="${test.dir}" destdir="${test.classes.dir}" cache="build/test <classpath path="${test.cp}"/> </depend> <javac srcdir="${test.dir}" destdir="${test.classes.dir}" source="1.5" debug <classpath path="${test.cp}"/> <compilerarg value="-Xlint:unchecked"/> </javac> <copy todir="${test.classes.dir}"> <fileset dir="${test.dir}" excludes="${jar.excludes}"/> </copy> </target> <target name="run-tests" depends="compile-tests" description="Run JUnit tests." <mkdir dir="${test.results.dir}"/> <junit failureproperty="tests.failed" showoutput="true" fork="true"> <batchtest todir="${test.results.dir}"> <fileset dir="${test.dir}"> <include name="**/*Test.java"/> </fileset> </batchtest> <classpath path="${test.run.cp}"/> <formatter type="brief" usefile="false"/> <formatter type="xml"/> </junit>
- 11. Download: http://maven.apache.org Version: 2.2.1 Requires: JDK 5+ Nature: Java command line program Invocation: mvn Apache Maven
- 12. 1. Get apache-maven-2.2.1-bin.zip 2. Unpack it to a folder 3. Set M2_HOME env var to the above folder Install Apache Maven
- 13. "A maven (also mavin) is a trusted expert in a particular field, who seeks to pass knowledge on to others." (http://en.wikipedia.org/wiki/Maven) or Configuration by Convention or Do it right way Quote
- 14. 1. Project layout 2. Build lifecycle Maven Conventions
- 18. Lifecycles ● Default lifecycle (build) ● Clean lifecycle ● Site lifecycle Build Lifecycle
- 25. ● Dependency identification ● Getting dependency Dependency Management Basis Maven Coordinates Repositories
- 26. groupId: org.testng artifactId: testng version: 5.11 packaging: jar classifier: jdk15 Maven Coordinates
- 29. Local Repository
- 31. http://repo1.maven.org/maven2 Number of artifacts (GAV): 313,955 Number of unique artifacts (GA): 38,372 Size of repository: 457,310 MB Maven Central
- 33. 1. Choose a library 2. Find Maven coordinates 3. Add <dependency> to POM 4. Use it in your code Using External Libs
- 34. 1. Good quality 2. Mature 3. Supported 4. Local expertise 5. Has a reliable source External Lib Selection
- 35. 1. Maven Central search 2. Project documentation / site 3. Google 4. Not found? Do not use this crap. Where to Find Maven Coordinates
- 38. 1. Dependency management explained 2. IDE (Eclipse) integration 3. Testing with Maven 4. Building web applications 5. Serving static content 6. Using binary libs Maven Talks: Next