Java:如何获得压缩字节数组的字符串表示形式?

我想将一些压缩数据放入远程存储库。
要将数据放在此存储库中,我只能使用将资源及其内容的名称作为字符串的方法。(就像data.txt+“Hello World”)。
存储库正在消耗文件系统,但不是,所以我不能直接使用文件。

我希望能够执行以下操作:

1. 客户端向服务器发送“data.txt”文件
2. 服务器将“data.txt”压缩为压缩文件“data.zip”
3. 服务器将data.zip的字符串表示形式发送到存储库
4. 存储库存储数据.zip
5. 客户机从repository data.zip下载,他可以用自己最喜欢的zip工具打开它。

问题出现在步骤3 当我试图获得压缩文件的字符串表示形式时。

这里是一个示例类,使用zip*流,并模拟展示我的问题的存储库。
创建的zip文件正在工作,但在其“序列化”之后,它会损坏。
(示例类使用jakarta commons.io)

非常感谢你的帮助。

package zip;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;

import org.apache.commons.io.FileUtils;

/**
 * Date: May 19, 2010 - 6:13:07 PM
 *
 * @author Guillaume AME.
 */
public class ZipMe {
    public static void addOrUpdate(File zipFile, File ... files) throws IOException {

        File tempFile = File.createTempFile(zipFile.getName(), null);
        // delete it, otherwise you cannot rename your existing zip to it.
        tempFile.delete();

        boolean renameOk = zipFile.renameTo(tempFile);
        if (!renameOk) {
            throw new RuntimeException("could not rename the file " + zipFile.getAbsolutePath() + " to " + tempFile.getAbsolutePath());
        }
        byte[] buf = new byte[1024];

        ZipInputStream zin = new ZipInputStream(new FileInputStream(tempFile));
        ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFile));

        ZipEntry entry = zin.getNextEntry();
        while (entry != null) {
            String name = entry.getName();
            boolean notInFiles = true;
            for (File f : files) {
                if (f.getName().equals(name)) {
                    notInFiles = false;
                    break;
                }
            }
            if (notInFiles) {
                // Add ZIP entry to output stream.
                out.putNextEntry(new ZipEntry(name));
                // Transfer bytes from the ZIP file to the output file
                int len;
                while ((len = zin.read(buf)) > 0) {
                    out.write(buf, 0, len);
                }
            }
            entry = zin.getNextEntry();
        }
        // Close the streams
        zin.close();
        // Compress the files
        if (files != null) {
            for (File file : files) {
                InputStream in = new FileInputStream(file);
                // Add ZIP entry to output stream.
                out.putNextEntry(new ZipEntry(file.getName()));
                // Transfer bytes from the file to the ZIP file
                int len;
                while ((len = in.read(buf)) > 0) {
                    out.write(buf, 0, len);
                }
                // Complete the entry
                out.closeEntry();
                in.close();
            }
            // Complete the ZIP file
        }
        tempFile.delete();
        out.close();

    }

    public static void main(String[] args) throws IOException {

        final String zipArchivePath = "c:/temp/archive.zip";
        final String tempFilePath = "c:/temp/data.txt";
        final String resultZipFile = "c:/temp/resultingArchive.zip";

        File zipArchive = new File(zipArchivePath);
        FileUtils.touch(zipArchive);

        File tempFile = new File(tempFilePath);
        FileUtils.writeStringToFile(tempFile, "hello world");
        addOrUpdate(zipArchive, tempFile);

        //archive.zip exists and contains a compressed data.txt that can be read using winrar

        //now simulate writing of the zip into a in memory cache
        String archiveText = FileUtils.readFileToString(zipArchive);
        FileUtils.writeStringToFile(new File(resultZipFile), archiveText);

        //resultingArchive.zip exists, contains a compressed data.txt, but it can not
        //be read using winrar: CRC failed in data.txt. The file is corrupt

    }

}