获取maven版本号，同时支持开发模式以及生产模式的获取

素颜马尾好姑娘i 2022-05-24 00:18 215阅读 0赞

pom.xml中配置，生产上可以将maven-model.jar删除

<dependency>
        <groupId>org.apache.maven</groupId>
        <artifactId>maven-model</artifactId>
        <version>3.0</version>  
    </dependency>

java代码如下

package com.loveU;
    
    import java.io.File;
    import java.io.FileNotFoundException;
    import java.io.FileReader;
    import java.io.IOException;
    import java.io.InputStream;
    import java.io.UnsupportedEncodingException;
    import java.net.URL;
    import java.util.Properties;
    
    import org.apache.maven.model.Model;
    import org.apache.maven.model.io.xpp3.MavenXpp3Reader;
    import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
    
    /**
     * <pre>
     * <b>类描述:</b> maven版本号获取
     * <b>创建日期:</b>2018年5月16日 下午9:29:02
     * </pre>
     */
    public class VersionUtil {
    	public static String appVersion = null;
    
    	/**
    	 * @return 获取版本号
    	 * 
    	 * @throws FileNotFoundException
    	 * @throws IOException
    	 * @throws XmlPullParserException
    	 */
    	public static String getVersion() throws FileNotFoundException, IOException, XmlPullParserException {
    		if (appVersion == null) {
    			String jarPath = VersionUtil.class.getProtectionDomain().getCodeSource().getLocation().getFile();
    			jarPath = java.net.URLDecoder.decode(jarPath, "UTF-8");
    			try {
    				URL url = new URL("jar:file:" + jarPath + "!/META-INF/maven/com/loveU/pom.properties");
    				InputStream inputStream = url.openStream();
    				Properties properties = new Properties();
    				properties.load(inputStream);
    				appVersion = properties.getProperty("version");
    			} catch (Exception e) {
    				MavenXpp3Reader reader = new MavenXpp3Reader();
    				String basePath = Thread.currentThread().getContextClassLoader().getResource("").getPath();
    				if (isWindows() && basePath.startsWith("/")) {
    					basePath = basePath.substring(1);
    				}
    				if (basePath.indexOf("/target/") != -1) {
    					basePath = basePath.substring(0, basePath.indexOf("/target/"));
    				}
    				Model model = reader.read(new FileReader(new File(basePath + "\\pom.xml")));
    				appVersion = model.getVersion();
    			}
    		}
    		return appVersion;
    	}
    
    	/**
    	 * 是否是windows系统
    	 * 
    	 * @return
    	 */
    	private static boolean isWindows() {
    		String osName = System.getProperty("os.name");
    		if (osName != null && osName.toLowerCase().indexOf("win") >= 0) {
    			return true;
    		}
    		return false;
    	}
    }