Building jar: C:\dev\workspace\mytest\target\ Tests run: 1, Failures: 0, Errors: 0, Skipped: 0 Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.037 sec Surefire report directory: C:\dev\workspace\mytest\target\surefire-reports Compiling 1 source file to C:\dev\workspace\mytest\target\test-classes Compiling 2 source files to C:\dev\workspace\mytest\target\classes
Using default encoding to copy filtered resources. Deleting directory C:\dev\workspace\mytest\target The console output from the "mvn clean install" on the mytest project is shown here: Console output from 'mvn clean install' on 'mytest' So, let's perform a "mvn clean install" to install the mytest artifact (ie, the mytest jar file) into the local maven repository. At this point, "mytest2" can't see anything in "mytest" because there is no classpath W reference in mytest2 to mytest.
Now, let's suppose that we'd like the MyTest2 class to call MyTest.sayHello(). pom.xml of mytest2 4.0.0 com.maventest mytest2 jar 1.0-SNAPSHOT mytest2 junit junit 3.8.1 test The simple pom.xml file out "mytest2" is shown here. It consists of compiling, packaging and installing it in the local repository. mvn install It will invoke all the phases up to the phase install. pom.xml of mytest 4.0.0 com.maventest mytest jar 1.0-SNAPSHOT mytest junit junit 3.8.1 test Moreover, what is the difference between Maven build and mvn install Build is not a phase in the standard Maven life cycles, whereas install is one. The simple pom.xml file out "mytest" is shown here. The very similar "mytest2" project has a MyTest2 class that outputs a message to standard output. The "mytest" project has a MyTest class that outputs a message to standard output. Suppose we have two very simple projects, "mytest" and "mytest2": Let's see how we can one project as a dependency to another project. In addition, when you build a project into an artifact (typically a jar file), you usually "install" the artifact into your local maven repository. Rather than storing jars within projects (such as in a "lib" directory) on your machine, jars are stored instead in your local maven repository, and you reference these jars in this common location rather than within your projects. A repository is essentially a big collection of "artifacts", which are things like jar W, war W, and ear W files. A key concept in maven S W is the idea of a repository.
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