如何使用Java访问.tar文件中的文件

 <groupId>org.apache.commons</groupId>
 <artifactId>commons-compress</artifactId>
 <version>1.21</version>
</dependency>

import org.apache.commons.compress.archivers.ArchiveEntry;
import org.apache.commons.compress.archivers.tar.TarArchiveInputStream;
import org.apache.commons.compress.compressors.gzip.GzipCompressorInputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;

public class TarFileExample {

  public static void main(String[] args) throws IOException {
    String tarFilePath = "path/to/your/tarfile.tar";
    String fileToAccess = "path/to/file/inside/tarfile.txt";

    try (InputStream fis = new FileInputStream(tarFilePath);
         TarArchiveInputStream tarInputStream = new TarArchiveInputStream(fis)) {

      ArchiveEntry entry;
      while ((entry = tarInputStream.getNextEntry()) != null) {
        if (entry.getName().equals(fileToAccess)) {
          // 读取文件内容并处理
          byte[] content = new byte[(int) entry.getSize()];
          tarInputStream.read(content);
          System.out.println(new String(content));
          break;
        }
      }
    }
  }
}

try (InputStream fis = new FileInputStream(tarFilePath);
     GzipCompressorInputStream gzipInputStream = new GzipCompressorInputStream(fis);
     TarArchiveInputStream tarInputStream = new TarArchiveInputStream(gzipInputStream)) {

  // 与上面的示例相同
}