import ohos.net.JarURLConnection;
import ohos.net.URL;
import ohos.net.URLConnection;
import ohos.net.URLStreamHandler;
import java.io.IOException;
import java.io.InputStream;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;

public class JarURLConnectionExample {
    public static void main(String[] args) {
        try {
            // 创建URL对象，指向JAR文件
            URL jarFileUrl = new URL("jar:file:/path/to/your/file.jar!/");

            // 打开JarURLConnection连接
            JarURLConnection jarURLConnection = (JarURLConnection) jarFileUrl.openConnection();

            // 获取JarFile对象
            JarFile jarFile = jarURLConnection.getJarFile();

            // 遍历JAR文件中的所有条目
            for (JarEntry jarEntry : jarFile.entries()) {
                System.out.println("Jar Entry: " + jarEntry.getName());
            }

            // 获取指定条目的InputStream
            JarEntry specificEntry = jarFile.getJarEntry("path/to/specific/entry.txt");
            InputStream entryInputStream = jarFile.getInputStream(specificEntry);

            // 读取InputStream中的内容
            byte[] buffer = new byte[1024];
            int bytesRead;
            while ((bytesRead = entryInputStream.read(buffer)) != -1) {
                // 处理读取的数据
                System.out.write(buffer, 0, bytesRead);
            }

            // 关闭连接
            jarFile.close();
            entryInputStream.close();

        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}