Java如何實現壓縮文件與解壓縮zip文件

package com.kuang.zip;

import org.apache.commons.io.IOUtils;

import java.io.*;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;

public class testZip {


    public static void unZipIt(String file, String outputFolder) throws IOException {

        ZipFile zipFile = null;
        InputStream in=null;
        OutputStream out=null;
        try {
            zipFile = new ZipFile(file);
            Enumeration <? extends ZipEntry>  entries = zipFile.entries();
            while (entries.hasMoreElements()) {
                ZipEntry entry = entries.nextElement();
                File entryDestination = new File(outputFolder, entry.getName());
                if (entry.isDirectory()) {
                    entryDestination.mkdirs();
                } else {
                    entryDestination.getParentFile().mkdirs();
                    try {
                        out = new FileOutputStream(entryDestination);
                        in = zipFile.getInputStream(entry);
                        IOUtils.copy(in, out);
                    } catch (IOException e) {
                        throw e;
                    }finally {
                        IOUtils.closeQuietly(in);
                        IOUtils.closeQuietly(out);
                    }
                }
            }
        } finally {
            try {
                if(zipFile!=null){zipFile.close();zipFile=null;}
            } catch (IOException e) {
            }
        }
    }

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

        unZipIt("D:\\Test\\TestbyYTT.zip","D:\\Test\\");

    }

}

<!-- https://mvnrepository.com/artifact/commons-io/commons-io -->
<dependency>
    <groupId>commons-io</groupId>
    <artifactId>commons-io</artifactId>
    <version>2.4</version>
</dependency>

public static void readAll() {
    try (
        FileReader fileReader = new FileReader("test");
        BufferedReader bufferedReader = new BufferedReader(fileReader)
    ) {
        String line;

        while ((line = bufferedReader.readLine()) != null) {
            System.out.println(line);
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
}

package com.kuang.zip;

import java.io.*;
import java.util.zip.*;
import java.util.zip.ZipEntry;


public class FileZip {
    /**
     * zip文件壓縮
     * @param inputFile 待壓縮文件夾/文件名
     * @param outputFile 生成的壓縮包名字
     */

    public static void ZipCompress(String inputFile, String outputFile) throws Exception {
        //創建zip輸出流
        ZipOutputStream out = new ZipOutputStream(new FileOutputStream(outputFile));
        //創建緩沖輸出流
        BufferedOutputStream bos = new BufferedOutputStream(out);
        File input = new File(inputFile);
        compress(out, bos, input,null);
        bos.close();
        out.close();
    }
    /**
     * @param name 壓縮文件名，可以寫為null保持默認
     */
    //遞歸壓縮
    public static void compress(ZipOutputStream out, BufferedOutputStream bos, File input, String name) throws IOException {
        if (name == null) {
            name = input.getName();
        }
        //如果路徑為目錄（文件夾）
        if (input.isDirectory()) {
            //取出文件夾中的文件（或子文件夾）
            File[] flist = input.listFiles();

            if (flist.length == 0)//如果文件夾為空，則隻需在目的地zip文件中寫入一個目錄進入
            {
                out.putNextEntry(new ZipEntry(name + "/"));
            } else//如果文件夾不為空，則遞歸調用compress，文件夾中的每一個文件（或文件夾）進行壓縮
            {
                for (int i = 0; i < flist.length; i++) {
                    compress(out, bos, flist[i], name + "/" + flist[i].getName());
                }
            }
        } else//如果不是目錄（文件夾），即為文件，則先寫入目錄進入點，之後將文件寫入zip文件中
        {
            out.putNextEntry(new ZipEntry(name));
            FileInputStream fos = new FileInputStream(input);
            BufferedInputStream bis = new BufferedInputStream(fos);
            int len=-1;
            //將源文件寫入到zip文件中
            byte[] buf = new byte[1024];
            while ((len = bis.read(buf)) != -1) {
                bos.write(buf,0,len);
            }
            bis.close();
            fos.close();
        }
    }

    /**
     * zip解壓
     * @param inputFile 待解壓文件名
     * @param destDirPath  解壓路徑
     */

    public static void ZipUncompress(String inputFile,String destDirPath) throws Exception {
        File srcFile = new File(inputFile);//獲取當前壓縮文件
        // 判斷源文件是否存在
        if (!srcFile.exists()) {
            throw new Exception(srcFile.getPath() + "所指文件不存在");
        }
        //開始解壓
        //構建解壓輸入流
        ZipInputStream zIn = new ZipInputStream(new FileInputStream(srcFile));
        ZipEntry entry = null;
        File file = null;
        while ((entry = zIn.getNextEntry()) != null) {
            if (!entry.isDirectory()) {
                file = new File(destDirPath, entry.getName());
                if (!file.exists()) {
                    new File(file.getParent()).mkdirs();//創建此文件的上級目錄
                }
                OutputStream out = new FileOutputStream(file);
                BufferedOutputStream bos = new BufferedOutputStream(out);
                int len = -1;
                byte[] buf = new byte[1024];
                while ((len = zIn.read(buf)) != -1) {
                    bos.write(buf, 0, len);
                }
                // 關流順序，先打開的後關閉
                bos.close();
                out.close();
            }
        }
    }


    public static void main(String[] args) {
        try {

            ZipCompress("D:\\Test", "D:\\Test\\TestbyYTT.zip");
            ZipUncompress("D:\\Test\\TestbyYTT.zip","D:\\Test\\TestbyYTT的解壓文件");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}