Qué es Maven en Java (Tutorial Cómo Funciona)

The next step is to configure your project's POM file. This file describes the project's dependencies, build process, and other important information. Consider the following example pom.xml file.

XML FILE

<?xml version="1.0" encoding="UTF-8"?>
<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>org.example</groupId>
    <artifactId>SampleProject</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <maven.compiler.source>17</maven.compiler.source>
        <maven.compiler.target>17</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>
    <dependencies>
        <dependency>
            <groupId>com.ironsoftware</groupId>
            <artifactId>ironpdf</artifactId>
            <version>2024.9.1</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-simple</artifactId>
            <version>2.0.5</version>
        </dependency>
    </dependencies>
</project>

<?xml version="1.0" encoding="UTF-8"?>
<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>org.example</groupId>
    <artifactId>SampleProject</artifactId>
    <version>1.0-SNAPSHOT</version>

    <properties>
        <maven.compiler.source>17</maven.compiler.source>
        <maven.compiler.target>17</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>
    <dependencies>
        <dependency>
            <groupId>com.ironsoftware</groupId>
            <artifactId>ironpdf</artifactId>
            <version>2024.9.1</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-simple</artifactId>
            <version>2.0.5</version>
        </dependency>
    </dependencies>
</project>

The above pom.xml file defines a Maven project with the following details:

• Group ID: org.example
• Artifact ID: SampleProject
• Version: 1.0-SNAPSHOT

This pom.xml file also includes a section to define project-level properties that can be referenced in other parts of the pom.xml file. In this example, the project build.sourceEncoding property is set to UTF-8.

It defines a project with two dependencies:

• The IronPDF library (a popular library for generating PDF documents from HTML content in Java), version 2024.9.1, from the com.ironsoftware group.
• The slf4j-simple library, version 2.0.5, from the org.slf4j group.

In addition to the dependencies, the pom.xml file also sets the source and target versions of the Java compiler to 17, using the maven.compiler.source and maven.compiler.target properties.

Note that this is just an example, and pom.xml files can vary widely in their contents and complexity depending on the needs of the project.

Once your project is configured, you can build it using the following command:

mvn clean install

mvn clean install

Maven will automatically download and install any necessary dependencies, compile your source code, and generate any necessary artifacts, such as JAR or WAR files. In this case, It will install IronPDF.

Once you have installed the IronPDF dependency, you can use it in your project by importing the necessary classes and methods. The following is an example of how to use IronPDF to generate a PDF document from an HTML string.

Generate a PDF File From AN HTML String

import com.ironsoftware.ironpdf.PdfDocument; // Import necessary class from IronPDF

public class PDFGenerator {

    public static void main(String[] args) {
        // Create a PDF document from an HTML string
        PdfDocument pdf = PdfDocument.renderHtmlAsPdf("<h1>What is MVN in Java.?</h1><p>Sample PDF file</p>");

        // Save the PDF document to a file
        pdf.saveAs("MVN.pdf");
    }
}

import com.ironsoftware.ironpdf.PdfDocument; // Import necessary class from IronPDF

public class PDFGenerator {

    public static void main(String[] args) {
        // Create a PDF document from an HTML string
        PdfDocument pdf = PdfDocument.renderHtmlAsPdf("<h1>What is MVN in Java.?</h1><p>Sample PDF file</p>");

        // Save the PDF document to a file
        pdf.saveAs("MVN.pdf");
    }
}

This code uses the IronPDF library to generate a PDF document from an HTML string and save it to a file. Here's how it works:

1. First, we import the necessary class PdfDocument from the IronPDF library.
2. In the main method, a PdfDocument object is created by calling the renderHtmlAsPdf method of the PdfDocument class. We pass an HTML string in this method. The HTML string in this case contains a heading and a paragraph that says "Sample PDF file".
3. The renderHtmlAsPdf method generates a PDF document from the HTML string using the IronPDF library.
4. The resulting PDF document is then saved to a file using the saveAs method of the PdfDocument class. In this case, we specify the file name "MVN.pdf" as the argument to the saveAs method.

The output PDF file from an HTML string