java - 以编程方式获取项目的 Maven 版本

Question

如何以编程方式获取项目的 Maven 版本？

换句话说:

static public String getVersion()
{
    ...what goes here?...
}

例如，如果我的项目将生成 jar CalculatorApp-1.2.3.jar，我希望 getVersion() 返回 1.2.3.

Answer 1

在 src/main/resources 中创建文件 version.prop，内容如下:

version=${project.version}

将以下内容添加到您的项目的 pom:

<build>
...
    <resources>
        <resource>
            <directory>src/main/resources</directory>
            <filtering>true</filtering>
            <includes>
                <include>**/version.prop</include>
            </includes>
        </resource>
        <resource>
            <directory>src/main/resources</directory>
            <filtering>false</filtering>
            <excludes>
                <exclude>**/version.prop</exclude>
            </excludes>
        </resource>
    </resources>
...
</build>

添加以下方法:

public String getVersion()
{
    String path = "/version.prop";
    InputStream stream = getClass().class.getResourceAsStream(path);
    if (stream == null)
        return "UNKNOWN";
    Properties props = new Properties();
    try {
        props.load(stream);
        stream.close();
        return (String) props.get("version");
    } catch (IOException e) {
        return "UNKNOWN";
    }
}

附注在这里找到大部分解决方案:http://blog.nigelsim.org/2011/08/31/programmatically-getting-the-maven-version-of-your-project/#comment-124