用Apache Commons Compress 產生tar.gz

最新推荐文章于 2024-07-20 03:21:30 发布

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本文介绍了一种使用Java编程语言结合commons-io和commons-compress库来创建.tgz文件的方法。该方法首先通过指定路径读取源文件，然后利用TarArchiveEntry和TarArchiveOutputStream创建tar归档，最后通过CompressorStreamFactory压缩为gzip格式。

POM:

<dependency>
			<groupId>commons-io</groupId>
			<artifactId>commons-io</artifactId>
			<version>2.4</version>
</dependency>
<dependency>
			<groupId>org.apache.commons</groupId>
			<artifactId>commons-compress</artifactId>
			<version>1.5</version>
</dependency>

代碼

import java.io.File;
import java.io.FileOutputStream;

import org.apache.commons.compress.archivers.tar.TarArchiveEntry;
import org.apache.commons.compress.archivers.tar.TarArchiveOutputStream;
import org.apache.commons.compress.compressors.CompressorOutputStream;
import org.apache.commons.compress.compressors.CompressorStreamFactory;
import org.apache.commons.io.FileUtils;
import org.junit.Test;

@Test
	public void testtgz() throws Exception {

		String outputFilePath = "/Users/xxx/Documents/test.tar.gz";
		File outputFile = new File(outputFilePath);

		FileOutputStream fileOutputStream = FileUtils
				.openOutputStream(outputFile);

		CompressorOutputStream gzippedOut = new CompressorStreamFactory()
				.createCompressorOutputStream(CompressorStreamFactory.GZIP,
						fileOutputStream);

		String inputFilePath = "/Users/xxx/aaa.pdf";
		File inputFile = new File(inputFilePath);

		TarArchiveEntry tae = new TarArchiveEntry(inputFile,
				inputFile.getName());
		TarArchiveOutputStream taos = new TarArchiveOutputStream(gzippedOut);
		taos.putArchiveEntry(tae);
		taos.write(FileUtils.readFileToByteArray(inputFile));
		taos.closeArchiveEntry();
		taos.close();
		gzippedOut.close();

	}