java 读取jar 文件里的xml文件

新建一个类 写一个main方法

 private static final String logback = "district.xml";

    static {
        //读取文件

    }
    public static void main(String[] args){
        String path = ProvinceVo.class.getProtectionDomain().getCodeSource().getLocation().getPath();
        System.out.println(path);
        File logbackFile = new File(logback);
        if (!logbackFile.exists()) {
            try {
                FileUtil.readJarFile(path, logback);
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

2.新建一个file 文件

public class FileUtil {

    /**
     * 读取jar包文件
     * @param jarPath
     * @param filename
     * @throws IOException
     */
    public static void readJarFile(String jarPath, String filename) throws IOException {
        JarFile jarFile = new JarFile(jarPath);
        StringBuffer sb=new StringBuffer();
        InputStreamReader input = new InputStreamReader( jarFile.getInputStream(jarFile.getJarEntry(filename)));
        BufferedReader reader = new BufferedReader(input);
        String line;
        while ((line = reader.readLine()) != null) {
            sb.append(line.trim());
        }
        System.out.println(sb.toString());
        reader.close();
        jarFile.close();
    }
}

3.执行 mvn clean package命令

4.首先cd 到jar包所在的目录

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5.执行main 方法

java -cp xcommons-util-1.0.jar com.xproject.xcommons.vo.ProvinceVo`