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我想压缩一个结构如下的文件夹：

临时/文件夹1/文件1

临时/文件夹2/文件2

临时/文件3

并准确维护目录结构。目前，当我压缩它时，我得到一个不维护目录结构的 zip。看起来像这个 file1 file2 file3

我该怎么做才能像所有普通的压缩应用程序一样将文件添加到各自的文件夹中？

这是我到目前为止的代码：

package com.damastah.deflash;

import android.util.Log;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.ArrayList;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class Compress {
    private static final int BUFFER = 2048;

    private ArrayList<File> _files;
    private String _zipFile;

    public Compress(ArrayList<File> files, String zipFile) {
        _files = files;
        _zipFile = zipFile;
    }

    public void zip() {
        try {
            BufferedInputStream origin = null;
            FileOutputStream dest = new FileOutputStream(_zipFile);

            ZipOutputStream out = new ZipOutputStream(new BufferedOutputStream(
                    dest));

            byte data[] = new byte[BUFFER];
            Log.e("Compress - zip", "test");
            for (int i = 0; i < _files.size(); i++) {
                Log.v("Compress", "Adding: " + _files.get(i).getAbsolutePath());
                FileInputStream fi = new FileInputStream(_files.get(i)
                        .getAbsolutePath());
                origin = new BufferedInputStream(fi, BUFFER);
                ZipEntry entry;
                if (_files.get(i).getAbsolutePath().contains("."))
                    entry = new ZipEntry(_files
                            .get(i)
                            .getAbsolutePath()
                            .substring(
                                    _files.get(i).getAbsolutePath()
                                            .lastIndexOf("/") + 1));
                else
                    entry = new ZipEntry(_files.get(i).getAbsolutePath());
                out.putNextEntry(entry);

                int count;
                while ((count = origin.read(data, 0, BUFFER)) != -1) {
                    out.write(data, 0, count);
                }

                origin.close();
            }

            out.close();
        } catch (Exception e) {
            e.printStackTrace();
        }

    }
}
4

1 回答 1

1

我不是 android 开发人员，因此仅将此代码视为 TIP

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

        String dir = "d:\\My folder\\";
        // this entries I want to put in archives in the way they are now
        String[] entries = { "temp\\folder1\\file1.txt", "temp\\folder2\\file2.txt",
                "temp\\file3.txt" };

        ZipOutputStream zipos = new ZipOutputStream(new BufferedOutputStream(
                new FileOutputStream(dir + "archive.zip")));

        // time to create entries and fill them with data
        for (String entrie : entries) {
            System.out.println("Writing file: " + dir + entrie);

            // prepering file stream
            BufferedInputStream fileStream = new BufferedInputStream(
                    new FileInputStream(dir + entrie));

//--------------------------------------------------------------------------
//          Here we decide how we entry will look like in archive.
//          We use only part of path from String[] entries
//          like "temp\\folder1\\file1.txt"
//--------------------------------------------------------------------------
            ZipEntry newEntry = new ZipEntry(entrie);

            newEntry.setComment("comment to entry: " + newEntry);

            // now lets put this entry in archive
            zipos.putNextEntry(newEntry);

            // lets put data from file to current archive entry
            int c;
            while ((c = fileStream.read()) != -1)
                zipos.write(c);
            fileStream.close();
        }
        zipos.close();
    }
}

编辑

我不确定你想在这里做什么

if (_files.get(i).getAbsolutePath().contains("."))
                    entry = new ZipEntry(_files
                            .get(i)
                            .getAbsolutePath()
                            .substring(
                                    _files.get(i).getAbsolutePath()
                                            .lastIndexOf("/") + 1));

据我所知，它删除了文件的路径，只留下文件名（类似_files.get(i).getName()）。如果这是真的，那么这就是您的 zip 文件中没有文件夹结构的原因。您是说 zip 条目应该只是该文件名，没有任何文件夹。

因此，如果您希望 zip 文件包含路径的某些部分， /my/full/path/to/folder/temp/folder1/file1例如temp/folder1/file1在创建 ZipEntry 时删除该路径的不必要部分

String dir = "/my/full/path/to/folder/";
for (int i = 0; i < _files.size(); i++) {
...
    if (_files.get(i).getAbsolutePath().contains(".")) {
        entry = new ZipEntry(_files
            .get(i).getAbsolutePath().replace(dir, ""));
...
于 2012-06-23T22:22:37.373 回答