Java 直接获取 pom.xml 配置的属性值

1.需求描述
2.代码示例
3.结果演示

系统：Win10
JDK：1.8.0_351
IDEA：2022.3.3

1.需求描述

在开发一个 SpringBoot 项目的时候，需要从 pom.xml 中获取配置的 artifactId，name，version，description 等属性信息，网上查询一番，发现大多数解决方案是通过在 yml 中配置一个自定属性，用 @project.version@ 来获取 pom 中的值，但是这样会多一层配置，比较麻烦，经过一番学习和测试，我发现通过 maven-model 依赖组件可以直接实现在 java 中获取 pom 中的属性值

2.代码示例

pom.xml 配置如下，里面有需要获取的属性值，以及等会需要使用的 maven-model 依赖包

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.7.18</version></parent><groupId>com.lijinjiang</groupId><artifactId>SpringBootDemo</artifactId><version>1.0.1</version><name>SpringBoot测试项目</name><description>SpringBootDemo测试项目，用来测试获取pom文件属性值</description><properties><project.name>DemoName01</project.name><java.version>1.8</java.version><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding><spring-boot.version>2.7.18</spring-boot.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><!--配置用于获取pom属性值--><dependency><groupId>org.apache.maven</groupId><artifactId>maven-model</artifactId><version>3.1.1</version></dependency></dependencies>
</project>

测试代码如下

import org.apache.maven.model.Model;
import org.apache.maven.model.io.xpp3.MavenXpp3Reader;
import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;import java.io.File;
import java.io.FileReader;
import java.io.IOException;@SpringBootTest
class DemoApplicationTests {@Testvoid contextLoads() {MavenXpp3Reader reader = new MavenXpp3Reader();String myPom = System.getProperty("user.dir") + File.separator + "pom.xml";try {Model model = reader.read(new FileReader(myPom));if (model != null) {String artifactId = model.getArtifactId();String version = model.getVersion();String name = model.getName();String description = model.getDescription();System.out.println("artifactId = " + artifactId);System.out.println("version = " + version);System.out.println("name = " + name);System.out.println("description = " + description);}} catch (IOException | XmlPullParserException e) {e.printStackTrace();}}
}