java如何在安卓中压缩文件夹中包含的多个文件而不压缩整个文件夹？

Question

这是我的要求，我有一个文件夹（比如：主文件夹），其中包含三个项目

One folder and two text files I want to zip only these three items contained in the Main folder .Right now I am zipping the contents with the Main folder and the resultant zipped folder name is "temp.zip",when I unzip this,I am getting the "Main folder". But my requirement is when I unzip the "temp.zip",it should display only the contents of the Main folder. Could any one help me in achieving this? Thank you.

编辑：这是我用来压缩文件的代码 这是我正在压缩文件的代码

public void zipFolder(String srcFolder, String destZipFile)
        throws Exception {
    ZipOutputStream zip = null;
    FileOutputStream fileWriter = null;
    fileWriter = new FileOutputStream(destZipFile);
    zip = new ZipOutputStream(fileWriter);
    addFolderToZip("", srcFolder, zip);
    zip.flush();
    zip.close();

}

  private void addFolderToZip(String path, String srcFolder,
        ZipOutputStream zip) throws Exception {
    File folder = new File(srcFolder);
    for (String fileName : folder.list()) {
        if (path.equals("")) {
            addFileToZip(folder.getName(), srcFolder + "/" + fileName, zip);
        } else {
            addFileToZip(path + "/" + folder.getName(), srcFolder + "/"
                    + fileName, zip);

        }
    }
}                                                                  

私有void addFileToZip（字符串路径、字符串srcFile、ZipOutputStream zip） 抛出异常{

    File folder = new File(srcFile);
    if (folder.isDirectory()) {
        addFolderToZip(path, srcFile, zip);
    } else {
        byte[] buf = new byte[1024];
        int len;
        FileInputStream in = new FileInputStream(srcFile);
        zip.putNextEntry(new ZipEntry(path + "/" + folder.getName()));
        while ((len = in.read(buf)) > 0) {
            zip.write(buf, 0, len);
        }

}
}

我使用以下参数调用zipfolder方法： zipFolder（srcpolder，destipath+“/”+“temp.zip”）

Answer 1

我刚从这个post抄过来

根据马特的回答，我成功地使用了这个库

You can try Zip4j, a pure java library to handle zip file. It supports encryption/decryption of PKWare and AES encryption methods.

http://www.lingala.net/zip4j/

Key features:

• Create, Add, Extract, Update, Remove files from a Zip file
• Read/Write password protected Zip files
• Supports AES 128/256 Encryption
• Supports Standard Zip Encryption
• Supports Zip64 format
• Supports Store (No Compression) and Deflate compression method
• Create or extract files from Split Zip files (Ex: z01, z02,...zip)
• Supports Unicode file names
• Progress Monitor

License:

• Zip4j is released under Apache License, Version 2.0

Answer 2

在Android中，将一组单独的文件压缩成一个zip应该非常简单。这里有一个很好的教程，可以让你开始学习：

http://www.jondev.net/articles/Zipping_Files_with_Android_%28Programmatically%29

Answer 3

在windows中，可以通过以下步骤实现这一点：

一,。打开主文件夹，选择要添加到zip文件中的文件 2.右键单击->；添加到archieve 3.选择archieve格式为zip，然后单击“确定”

Answer 4

try {
    String zipFile = "/locations/data.zip";
    String srcFolder = "/locations";

    File folder = new File(srcFolder);
    String[] sourceFiles = folder.list();

    //create byte buffer
    byte[] buffer = new byte[1024];

    /*
     * To create a zip file, use
     *
     * ZipOutputStream(OutputStream out) constructor of ZipOutputStream
     * class.
     */
    //create object of FileOutputStream
    FileOutputStream fout = new FileOutputStream(zipFile);

    //create object of ZipOutputStream from FileOutputStream
    ZipOutputStream zout = new ZipOutputStream(fout);

    for (int i = 0; i < sourceFiles.length; i++) {
        if (sourceFiles[i].equalsIgnoreCase("file.csv") || sourceFiles[i].equalsIgnoreCase("file1.csv")) {
            sourceFiles[i] = srcFolder + fs + sourceFiles[i];
            System.out.println("Adding " + sourceFiles[i]);
            //create object of FileInputStream for source file
            FileInputStream fin = new FileInputStream(sourceFiles[i]);

            /*
             * To begin writing ZipEntry in the zip file, use
             *
             * void putNextEntry(ZipEntry entry) method of
             * ZipOutputStream class.
             *
             * This method begins writing a new Zip entry to the zip
             * file and positions the stream to the start of the entry
             * data.
             */

            zout.putNextEntry(new ZipEntry(sourceFiles[i].substring(sourceFiles[i].lastIndexOf("/") + 1)));

            /*
             * After creating entry in the zip file, actually write the
             * file.
             */
            int length;

            while ((length = fin.read(buffer)) > 0) {
                zout.write(buffer, 0, length);
            }

            /*
             * After writing the file to ZipOutputStream, use
             *
             * void closeEntry() method of ZipOutputStream class to
             * close the current entry and position the stream to write
             * the next entry.
             */

            zout.closeEntry();

            //close the InputStream
            fin.close();

        }
    }

    //close the ZipOutputStream
    zout.close();

    System.out.println("Zip file has been created!");

} catch (IOException ioe) {
    System.out.println("IOException :" + ioe);
}