Java如何递归压缩或压缩目录?

1.使用 java.util.zip.ZipOutputStream来压缩文件
2.遍历文件
3.使用 java.util.zip.ZipEntry 将每一个文件放入压缩文件中

package com.java265.example.zip;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Arraylist;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class ZipDirectoryExample {
    private List<String> fileList = new ArrayList<>();

    public static void main(String[] args) {
        String dir = "D:\\Data";
        String zipFile = "D:\\Data.zip";

        ZipDirectoryExample zip = new ZipDirectoryExample();
        zip.compressDirectory(dir, zipFile);
    }

    private void compressDirectory(String dir, String zipFile) {
        File directory = new File(dir);
        getFileList(directory);

        try (FileOutputStream fos = new FileOutputStream(zipFile);
             ZipOutputStream zos = new ZipOutputStream(fos)) {

            for (String filePath : fileList) {
                System.out.println("Compressing: " + filePath);

                // 创建一个zip条目。
                String name = filePath.substring(
                    directory.getAbsolutePath().length() + 1,
                    filePath.length());

                ZipEntry zipEntry = new ZipEntry(name);
                zos.putNextEntry(zipEntry);

                // 读取文件内容并写入zip输出流。
                try (FileInputStream fis = new FileInputStream(filePath)) {
                    byte[] buffer = new byte[1024];
                    int length;
                    while ((length = fis.read(buffer)) > 0) {
                        zos.write(buffer, 0, length);
                    }

                    // 关闭邮递区号。
                    zos.closeEntry();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    /**
     * Get files list from the directory recursive to the sub directory.
     */
    private void getFileList(File directory) {
        File[] files = directory.listFiles();
        if (files != null && files.length > 0) {
            for (File file : files) {
                if (file.isFile()) {
                    fileList.add(file.getAbsolutePath());
                } else {
                    getFileList(file);
                }
            }
        }

    }
}


---运行以上代码，将输出以下信息
--- 这些文件都是文件夹中的文件

Compressing: D:\Data\test1.txt
Compressing: D:\Data\test2.txt
Compressing: D:\Data\tt.txt
Compressing: D:\Data\bb.txt
Compressing: D:\Data\jjjj.txt
Compressing: D:\Data\bbbbbb.txt