JAVA實現文件ZIP壓縮和解壓（解決中文文件名亂碼）

我們在工作中遇到文件的壓縮的解壓，我在使用的時候有遇到中文的時候，就會造成亂碼。這個也是經常會用到工具類，所以就把工具類貼出來供大家參考。

1、引入依賴，這個依賴能夠制定壓縮文件名的編碼。

   <!-- ant.jar 用於解決文件解壓縮亂碼問題 -->
        <dependency>
            <groupId>ant</groupId>
            <artifactId>ant</artifactId>
            <version>1.6.5</version>
        </dependency>

2、工具類，這裏涉及tools類和java自帶的類可能不容易分清，在這裏也將依賴引入。這裏如過沒有編碼問題需要將編碼更改爲 gbk。

package com.yin.databaseproject.util;

import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipFile;
import org.apache.tools.zip.ZipOutputStream;


import java.io.*;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;




/**
 * @author yin
 * @Date 2020/1/12 14:51
 * @Method
 */
public class ZipUtils {

    private static Integer BUFFER_SIZE = 4 * 1024;


    public static synchronized boolean unZip(String zipFileName, String extPlace,String encode) {
        try {
            return unZipFiles(zipFileName, extPlace,encode);
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    /**
     * 解壓zip格式文件到指定位置
     * @param zipFileName
     * @param extPlace
     * @return
     */
    private static boolean unZipFiles(String zipFileName, String extPlace,String encode) {
        try {
            (new File(extPlace)).mkdirs();
            File file = new File(zipFileName);
            ZipFile zipFile = new ZipFile(zipFileName,encode);

            if ((!file.exists()) && (file.length() <= 0)) {
                throw new Exception("要解壓文件不存在");
            }

            String strPath,gbkPath,strtemp;

            File tempFile = new File(extPlace);
            strPath = tempFile.getAbsolutePath();
            Enumeration<ZipEntry> e = zipFile.getEntries();
            while (e.hasMoreElements()) {
                ZipEntry zipEnt = e.nextElement();
                gbkPath = zipEnt.getName();
                if (zipEnt.isDirectory()) {
                    strtemp = strPath + File.separator + gbkPath;
                    File dir = new File(strtemp);
                    dir.mkdirs();
                    continue;
                }else {
                    //讀寫文件
                    InputStream is = zipFile.getInputStream(zipEnt);
                    BufferedInputStream bis = new BufferedInputStream(is);
                    gbkPath = zipEnt.getName();
                    strtemp= strPath + File.separator + gbkPath;
                    //建目錄
                    String strsubdir = gbkPath;

                    for (int i = 0; i < strsubdir.length(); i++) {
                        if (strsubdir.substring(i, i + 1).endsWith("/")) {
                            String temp = strPath + File.separator + strsubdir.substring(0, i);
                            File subdir = new File(temp);
                            if (!subdir.exists()) {
                                subdir.mkdir();
                            }
                        }
                    }

                    FileOutputStream fos = new FileOutputStream(strtemp);
                    BufferedOutputStream bos = new BufferedOutputStream(fos);
                    int c;
                    while ((c = bis.read()) != -1) {
                        bos.write((byte) c);
                    }
                    bos.close();
                    fos.close();
                }

            }
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
    }

    /**
     *
     *  壓縮成zip 方法1
     *
     * @param srcDir 壓縮文件的路徑
     * @param out 壓縮文件輸出流
     * @param keepDirStructure 是否保持原來的目錄結構，true ：保留目錄結構
     *                         false :所有文件會跑到壓縮包根目錄下（如果出現相同包名會出現壓縮失敗）
     */
    public static void toZip(String srcDir, OutputStream out, boolean keepDirStructure,String encode) {
        long start = System.currentTimeMillis();
        ZipOutputStream zos = null;
        try {
            zos = new ZipOutputStream(out);
            zos.setEncoding(encode);
            File sourceFile = new File(srcDir);
            compress(sourceFile, zos, sourceFile.getName(), keepDirStructure);
            long end = System.currentTimeMillis();
            System.out.println("壓縮完成，耗時：" + (end - start) + "ms");
        } catch (Exception e) {
            throw new RuntimeException("zip error fail", e);
        } finally {
            if (zos != null) {
                try {
                    zos.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }

            }
        }
    }

    public static void toZip(List<File> srcFiles, OutputStream out,String encode) throws RuntimeException{
        long start = System.currentTimeMillis();
        ZipOutputStream zos = null;
        try {

            zos = new ZipOutputStream(out);
            // 設置壓縮的編碼，解決壓縮路徑中的中文亂碼問題
           zos.setEncoding(encode);
            for (File srcFile : srcFiles) {
                byte[] buf = new byte[BUFFER_SIZE];
                zos.putNextEntry(new ZipEntry(srcFile.getName()));
                int len;
                FileInputStream in = new FileInputStream(srcFile);
                while ((len = in.read(buf)) != -1) {
                    zos.write(buf, 0, len);
                }
                zos.closeEntry();
                in.close();
            }
           long end= System.currentTimeMillis();
            System.out.println("完成壓縮，耗時" +(end - start) + "ms");
        } catch (Exception e) {
            throw new RuntimeException("zip error fail", e);
        }finally {
            if (zos != null) {
                try {
                    zos.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    private static void compress(File sourceFile, ZipOutputStream zos,
                                 String name, boolean keepDirStructure) throws Exception {
        byte[] buf = new byte[BUFFER_SIZE];
        if(sourceFile.isFile()){
            //向zip輸出流中添加一個zip實體，構造器中name爲實體的文件的名字
            zos.putNextEntry(new ZipEntry(name));
            //copy文件到zip輸出流
            int len;

            FileInputStream in = new FileInputStream(sourceFile);
            while ((len = in.read(buf)) != -1) {
                zos.write(buf, 0, len);
            }

            zos.closeEntry();
            in.close();
        }else {
            File[] listFiles = sourceFile.listFiles();
            if (listFiles == null || listFiles.length == 0) {
                //需要保留原來文件結構，需要對空文件夾進行處理
                if (keepDirStructure) {
                    //空文件夾的處理
                    zos.putNextEntry(new ZipEntry(name + "/"));
                    //沒有文件，不需要copy
                    zos.closeEntry();
                }
                }else{
                    for (File file : listFiles) {
                        if (keepDirStructure) {
                            //注意：file.getName() 前面需要帶上父文件夾的名字加一斜槓
                            //不然最後壓縮包中就不能保留原來文件結構，所有文件都跑到根目錄下面了

                            compress(file, zos, name + "/" + file.getName(), keepDirStructure);
                        }else {
                            compress(file, zos, file.getName(), keepDirStructure);
                        }
                    }
                }

        }
    }

    public static void main(String[] args) throws FileNotFoundException {
        String namePath = "C:\\Users\\Administrator\\Desktop\\test.zip";
        String namePath12 = "C:\\Users\\Administrator\\Desktop\\test12.zip";
        List<File> list = new ArrayList<File>();

        list.add(new File("C:\\Users\\Administrator\\Desktop\\經驗文檔\\aop學習.doc"));
        list.add(new File("C:\\Users\\Administrator\\Desktop\\新建文本文檔 (2).txt"));
        list.add(new File("C:\\Users\\Administrator\\Desktop\\asa.xls"));


        FileOutputStream fos = new FileOutputStream(new File(namePath));
        FileOutputStream fos12 = new FileOutputStream(new File(namePath12));
        toZip(list,fos,"gbk");
        toZip("C:\\Users\\Administrator\\Desktop\\經驗文檔",fos12,true,"gbk");

        System.out.println("\n壓縮完成 路徑：" + namePath);

        unZip(namePath,"C:\\Users\\Administrator\\Desktop\\解壓","gbk");
        unZip(namePath12,"C:\\Users\\Administrator\\Desktop\\解壓12","gbk");


    }
}