How to configure a new project in pom.xml

How to configure a POM file: Create a POM file, add Maven coordinates (groupId, artifactId, and version), introduce dependencies (groupId, artifactId, and version), configure the build (such as the Java compiler), and then save the file.

How to configure a new project in a POM

Step 1: Create a new POM file

Create a new file named pom.xml in the root directory of the project, which is Maven's project object model.

Step 2: Add Maven coordinates

Add the following elements in the pom.xml file:

 <code class="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/maven-v4_0_0.xsd"> <modelversion>4.0.0</modelversion> <groupid>com.example</groupid> <artifactid>my-project</artifactid> <version>1.0-SNAPSHOT</version> </project></code>

• groupId: part of the Maven project coordinates to uniquely identify the issuer of the project.
• artifactId: Part of the Maven project coordinates that uniquely identifies the project itself.
• version: The version number of the project.

Step 3: Introduce dependencies

If you need to use other libraries in your project, you can add dependencies element in the pom.xml file:

 <code class="xml"><dependencies> <dependency> <groupid>junit</groupid> <artifactid>junit</artifactid> <version>4.13.2</version> </dependency> </dependencies></code>

• groupId: the issuer of the library.
• artifactId: The name of the library.
• version: The version number of the library.

Step 4: Configure the build

You can configure the project's build process in pom.xml , and the following example shows how to configure the Java compiler:

 <code class="xml"><build> <plugins> <plugin> <groupid>org.apache.maven.plugins</groupid> <artifactid>maven-compiler-plugin</artifactid> <version>3.8.1</version> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> </plugins> </build></code>

• source: The source code version to be compiled.
• target: The bytecode version to be generated.

Step 5: Save the file

Save the pom.xml file.

After completing these steps, your new project should be properly configured via Maven.

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