First of all going to any directory of computer machine and open command prompt. Here I am using git bash as command prompt. For creating a simple hello java project using maven, we have to open command prompt and run the archetype:generate command of mvn tool.
The command as following we have used to create project-
Command-
mvn archetype:generate -DgroupId=groupid -DartifactId=artifactid -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=booleanValue
Creating Java Hello World Maven Project
Above is the syntax for creating java project so let see below for actually create command.
mvn archetype:generate -DgroupId=com.dineshonjava -DartifactId=JavaHelloWorld -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=falseAfter running this command following is output:
Now it will generate following code in the command prompt:
$ mvn archetype:generate -DgroupId=com.dineshonjava -DartifactId=JavaHelloWorld -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false [INFO] Scanning for projects... [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building Maven Stub Project (No POM) 1 [INFO] ------------------------------------------------------------------------ [INFO] [INFO] >>> maven-archetype-plugin:2.4:generate (default-cli) > generate-sources @ standalone-pom >>> [INFO] [INFO] <<< maven-archetype-plugin:2.4:generate (default-cli) < generate-sources @ standalone-pom <<< [INFO] [INFO] --- maven-archetype-plugin:2.4:generate (default-cli) @ standalone-pom --- [INFO] Generating project in Batch mode [INFO] ---------------------------------------------------------------------------- [INFO] Using following parameters for creating project from Old (1.x) Archetype: maven-archetype-quickstart:1.0 [INFO] ---------------------------------------------------------------------------- [INFO] Parameter: groupId, Value: com.dineshonjava [INFO] Parameter: packageName, Value: com.dineshonjava [INFO] Parameter: package, Value: com.dineshonjava [INFO] Parameter: artifactId, Value: JavaHelloWorld [INFO] Parameter: basedir, Value: D:\personal data\doj\maven-tutorails [INFO] Parameter: version, Value: 1.0-SNAPSHOT [INFO] project created from Old (1.x) Archetype in dir: D:\personal data\doj\maven-tutorails\JavaHelloWorld [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 01:03 min [INFO] Finished at: 2016-10-24T23:58:00+05:30 [INFO] Final Memory: 9M/44M [INFO] ------------------------------------------------------------------------
Created Project Structure-
Now go to directory where we have created java project. We got following directory structure.
Created files:
Following files are auto generated into java project.
Maven pom.xml file
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.dineshonjava</groupId>
<artifactId>JavaHelloWorld</artifactId>
<packaging>jar</packaging>
<version>1.0-SNAPSHOT</version>
<name>JavaHelloWorld</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
App.java
package com.dineshonjava;
/**
* Hello world!
*
*/
public class App
{
public static void main( String[] args )
{
System.out.println( "Hello World!" );
}
}
AppTest.java
package com.dineshonjava;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
/**
* Unit test for simple App.
*/
public class AppTest
extends TestCase
{
/**
* Create the test case
*
* @param testName name of the test case
*/
public AppTest( String testName )
{
super( testName );
}
/**
* @return the suite of tests being tested
*/
public static Test suite()
{
return new TestSuite( AppTest.class );
}
/**
* Rigourous Test :-)
*/
public void testApp()
{
assertTrue( true );
}
}
Run the created java project
For running created java project we have to compile first then we can run it.
For compile use this command "mvn clean compile"
$ mvn clean compile [INFO] Scanning for projects... [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building JavaHelloWorld 1.0-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO] [INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ JavaHelloWorld --- [INFO] [INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ JavaHelloWorld --- [WARNING] Using platform encoding (Cp1252 actually) to copy filtered resources, i.e. build is platform dependent! [INFO] skip non existing resourceDirectory D:\personal data\doj\maven-tutorails\JavaHelloWorld\src\main\resources [INFO] [INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ JavaHelloWorld --- [INFO] Changes detected - recompiling the module! [WARNING] File encoding has not been set, using platform encoding Cp1252, i.e. build is platform dependent! [INFO] Compiling 1 source file to D:\personal data\doj\maven-tutorails\JavaHelloWorld\target\classes [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 3.829 s [INFO] Finished at: 2016-10-25T00:19:50+05:30 [INFO] Final Memory: 9M/22M [INFO] ------------------------------------------------------------------------For run this project go to the project directory\target\classes,
And run following command for executing java class.
java com.dineshonjava.App