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Post By AdminLast Updated At 2020-06-11
How Maven Useful in Java?

We all know that Maven is the Best Project Management Tool based Project Object Model. It is mostly useful for project building, Documentation, and Dependency. It simplifies the inbuilt process, like ANT. We can say it is a tool for Java-based projects. It makes the easy work of Java Developer very easier. In general, it helps comprehension in any Java project. In our blog Maven In Java, you will see how Maven is Implemented in Java.

Eventually, With Maven, we can integrate the program very easily, with source control systems. We can design any number of programs that is like WAR, JAR, and Scripting. It is helpful for the scheme Designing and scripting process. Usually, updates the program with a central repository of JARs and other types of Dependencies. It offers scheme Information and adds Jars, other dependencies with help of maven. In particular, We can build a strategy easily with maven.

Download Maven Java Libraries, it plug-ins from one or many repositories like maven 2. It stores local cache, this guide downloadable Artifacts. Immediately, this can be updated with artifacts designed by the local programs. As a matter of fact, Public repositories are also updated.

Not only Java but also used for designing Scala, Ruby, #C, and other Languages. In addition, hosted by Apache Software Foundation, known as the Jakarta scheme.

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Repositories

Dependencies were just like Java libraries that need repositories and Directories for JAR files. To illustrate, the local Repository is like your machine hard drive. When dependencies are not found in the local Maven Repository. Specifically, Maven downloads them with the central Maven Repository, and they keep them in the local Repository.

There are different types of repositories available, which we discuss below in detail.

Whenever we conduct a search for any dependency, we have to search within the repository. Similarly, Maven uses three different repositories while starting the search. Such as Local, Central, and ends finally with Remote Repository.

  • Local Repository

This repository within Maven is a folder location on the user system, where it stores all the project-related elements safely. With the execution of the Maven builds, it automatically downloads all the dependency jars to this repository folder. 

  • Central Repository

In case of the dependency that the user searches for is not found in the Local repository, then Maven moves to the Central repository. Then it downloads all your dependencies to the local repository.

  • Remote Repository

This repository is present on a web server, popularly useful to host various internal projects of any enterprise. Maven uses it for downloading dependencies.

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Build Plugins

Build Plugins utilized for performing certain specific targets. You have to add a plugin for POM File. The Maven Central has some standard types of Plugins. You can use them and implement them in your own Java.

Installation Process of Maven with Java

First, we have to verify, the system has Java Installed in it or not. If not, then we have to install Java.

In other words, Check Java Environmental Variable, which is set or not. If not, we have to Install Java environmental variable.

Therefore, Download Maven.

Unpack your maven Zip at any place in the system.

After that, add bin Directory for Designing Directory Apache maven-3.5.3.

Open CMD and after that, you have to run the mvn-v command. If it prints the following lines of code, then the installation is finished.

Apache Maven 3.5.3 (3383c37e1f9e9b3bc3df5050c29c8aff9f295297; 2019-02-25T01:19:05+05:30)

Maven home: C:\apache-maven-3.5.3\bin\..

Java version: 1.8.0_151, vendor: Oracle Corporation

Java home: C:\Program Files\Java\jdk1.8.0_151\jre

Default locale: en_US, platform encoding: Cp1252

OS name: "windows 10", version: "10.0", arch: "amd64", family: "windows"
Example
4.0.0

com.project.loggerapi

LoggerApi

0.0.1-SNAPSHOT







org.apache.logging.log4j

log4j-api

2.11.0





What elements are used for Designing the Pom.XML file.

Version

Generally, the version element has a version number of the program. If your scheme is released in many versions, then it is useful for offering the version of your project Maven Central Repository.

ArtifactID

At the same time, artifactID was utilized for offering the name of the program, Moreover, you were designing. In the example, the name of our scheme is known as logger API.

Group-ID

Especially, Group-ID is known as Program Group, it is single and unique. Every time, you have to use the group ID. In conclusion, that is similar to the Root Java Package. Name of project, like we use group-ID com.project.logger API Maven dependency.

Model Version

Generally, a Model version is known as which version of the POM sample that you use. In the same fashion, the use of version 4.0.0 for maven 3 and maven 2.

Project

It is the main root element of the POM.xml file.

When we work with a Java Program, the project has many dependencies. Consequently, that design the requirement, then managing everything in a manual mode. In the same fashion, which is very difficult and tiresome. Practically, using some tool that does these works is so much helpful MVN.

Equally, When we generate total Maven scheme design, with the help of Java Source code. To illustrate, maven designed an App.java class, that is known as ./src/main/folder, which is a simple “Hello World” program. For example, It designed a small example, test session in

./src/test/. In the Root Folder, where there is a pom.xml file.



4.0.0

com.vogella.build.maven.java

com.vogella.build.maven.java

jar

1.0-SNAPSHOT

com.vogella.build.maven.java

http://maven.apache.org





junit

junit

3.8.1

test





Advantages of Maven

There are numerous advantages of using Maven in a project or development process.

  • Maven is a popular and powerful project management tool that helps to start any project easily in various environments. Most useful for Java-based projects also.
  • It is useful to build a project to a WAR, JAR, etc. very easily.
  • By writing a dependency code within the POM file, users can add new dependencies.
  • It manages dependencies with automatic updates.
  • Moreover, it helps developers to build these types of complex projects easily.
  • New features of this tool are easily accessible and also can be added to a project within the Maven configuration. Through this, the performance and growth process of a project increases well.
  • It helps users in all processes including growth, documentation, releasing, allocation in managing a project.
  • Information accessibility is very easy with Maven.
  • Further, it includes a growing repository of libraries.
Disadvantages of Maven

Along with the benefits, there are a few disadvantages of Maven, which are as follows.:

If someone looking to add a dependency, then he has to have the existing maven code for that dependency.

Users need to download plugins as a must along with Maven installation. 

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Bottom line

Hence, I conclude this blog here, and I hope you got enough idea from the above explanation of using Maven in Java.  The use of Maven will help the development & project management process smoothly. Moreover, the skills related to POM files, build life cycle, plugins, repositories, etc. will help to work more in real-time. The installation process will guide you through the steps to install Maven securely and run it for your project. 

These are the best-known facts about Maven in java.

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