Getting started with Maven: First Maven Project Part 2
Eclipse IDE Support
To import this project into Eclipse, you need to generate some Eclipse project configuration files :
mvn eclipse:eclipse
IntelliJ IDEA Support
mvn idea:idea
Importing Maven Project into Eclipse
username:samplemavenproject$ mvn eclipse:eclipse[INFO] Scanning for projects...[INFO] [INFO] ------------------------------------------------------------------------[INFO] Building samplemavenproject 1.0[INFO] ------------------------------------------------------------------------[INFO] [INFO] >>> maven-eclipse-plugin:2.10:eclipse (default-cli) > generate-resources @ samplemavenproject >>>[INFO] [INFO] <<< maven-eclipse-plugin:2.10:eclipse (default-cli) < generate-resources @ samplemavenproject <<<[INFO] [INFO] [INFO] --- maven-eclipse-plugin:2.10:eclipse (default-cli) @ samplemavenproject ---[INFO] Using Eclipse Workspace: null[INFO] Adding default classpath container: org.eclipse.jdt.launching.JRE_CONTAINER[INFO] Not writing settings - defaults suffice[INFO] Wrote Eclipse project for "samplemavenproject" to /Users/admin/Desktop/samplemavenproject.[INFO] [INFO] ------------------------------------------------------------------------[INFO] BUILD SUCCESS[INFO] ------------------------------------------------------------------------[INFO] Total time: 2.632 s[INFO] Finished at: 2018-04-03T00:57:05+05:30[INFO] Final Memory: 12M/41M[INFO] ------------------------------------------------------------------------username:samplemavenproject$
1.Open Eclipse.
2. Select File > Import > Maven.
3. Select Existing Maven Projects Option. Click on Next Button.
4. Select Project location, where a project was created using Maven.
5. Click Finish
Project Structure in Eclipse:
Java Code:
package com.interviewbubble;/*** Hello world!**/ public class App { public static void main( String[] args ) { System.out.println( "Hello World!" ); }}
Building the Project
username:samplemavenproject$ mvn clean package[INFO] Scanning for projects...[INFO] [INFO] ------------------------------------------------------------------------[INFO] Building samplemavenproject 1.0[INFO] ------------------------------------------------------------------------[INFO] [INFO] --- maven-clean-plugin:2.5:clean (default-clean) @ samplemavenproject ---[INFO] Deleting /Users/admin/Desktop/samplemavenproject/target[INFO] [INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ samplemavenproject ---[INFO] Using 'UTF-8' encoding to copy filtered resources.[INFO] skip non existing resourceDirectory /Users/admin/Desktop/samplemavenproject/src/main/resources[INFO] [INFO] --- maven-compiler-plugin:3.5.1:compile (default-compile) @ samplemavenproject ---[INFO] Changes detected - recompiling the module![INFO] Compiling 1 source file to /Users/admin/Desktop/samplemavenproject/target/classes[INFO] [INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ samplemavenproject ---[INFO] Using 'UTF-8' encoding to copy filtered resources.[INFO] skip non existing resourceDirectory /Users/admin/Desktop/samplemavenproject/src/test/resources[INFO] [INFO] --- maven-compiler-plugin:3.5.1:testCompile (default-testCompile) @ samplemavenproject ---[INFO] Changes detected - recompiling the module![INFO] Compiling 1 source file to /Users/admin/Desktop/samplemavenproject/target/test-classes[INFO] [INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ samplemavenproject ---[INFO] Surefire report directory: /Users/admin/Desktop/samplemavenproject/target/surefire-reports------------------------------------------------------- T E S T S-------------------------------------------------------Running com.interviewbubble.AppTestTests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.026 secResults :Tests run: 1, Failures: 0, Errors: 0, Skipped: 0[INFO] [INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ samplemavenproject ---[INFO] Building jar: /Users/admin/Desktop/samplemavenproject/target/samplemavenproject-1.0.jar[INFO] ------------------------------------------------------------------------[INFO] BUILD SUCCESS[INFO] ------------------------------------------------------------------------[INFO] Total time: 3.900 s[INFO] Finished at: 2018-04-03T01:44:08+05:30[INFO] Final Memory: 14M/48M[INFO] ------------------------------------------------------------------------username:samplemavenproject$
Getting Jar file:
Maven creates a target subdirectory inside the project root directory. Inside the target directory, you will find the finished JAR file(samplemavenproject-1.0.jar), as well as lots of temporary files (e.g. a classes directory containing all the compiled classes).
Running App on Eclipse:
Now, right click on App.java. Select Run As option. Then select Java Application.
OUTPUT on the console:
Hello World!
Final Code of First Maven Project:
Java Code:
package com.interviewbubble;/*** Hello world!**/ public class App { public static void main( String[] args ) { System.out.println( "Hello World!" ); }}
pom.xml
<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/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.interviewbubble</groupId> <artifactId>samplemavenproject</artifactId> <version>1.0</version> <packaging>jar</packaging> <name>samplemavenproject</name> <url>http://maven.apache.org</url> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.5.1</version> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> </plugins></build></project>
