java zip文件的多层级遍历和文件夹下目录的问题-蒲公英云

java zip文件的多层级遍历和文件夹下目录的问题

灰太狼 2022-03-31 07:17 244阅读 0赞

java zip文件的多层级遍历和文件夹下目录的问题

package com.hgh.zip;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Properties;
import java.util.UUID;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
/**
 * https://www.cnblogs.com/invban/p/7975583.html
 * @author he_guanhong
 *
 */
public class ZIPtest {
    /**
     * 解压zip
     *
     * @param zipFile
     * @param descDir
     * @throws Exception
     */
    public static void unZipFiles(File zipFile, String descDir) throws Exception {
        System.out.println("******************解压开始********************");
        File pathFile = new File(descDir);
        if (!pathFile.exists()) {
            pathFile.mkdirs();
        }
        ZipFile zip = new ZipFile(zipFile);
        for (Enumeration entries = zip.entries(); entries.hasMoreElements();) {
            ZipEntry entry = (ZipEntry) entries.nextElement();
            String zipEntryName = entry.getName();
            InputStream in = zip.getInputStream(entry);
            String outPath = (descDir + "/" + zipEntryName).replaceAll("\\*", "/");
            // 判断路径是否存在,不存在则创建文件路径
            File file = new File(outPath.substring(0, outPath.lastIndexOf('/')));
            if (!file.exists()) {
                file.mkdirs();
            }
            // 判断文件全路径是否为文件夹,如果是上面已经上传,不需要解压
            if (new File(outPath).isDirectory()) {
                continue;
            }
            OutputStream out = new FileOutputStream(outPath);
            byte[] buf1 = new byte[1024];
            int len;
            while ((len = in.read(buf1)) > 0) {
                out.write(buf1, 0, len);
            }
            if ((zipEntryName.trim().lastIndexOf("/")) == -1) {
            }
            in.close();
            out.close();
        }
        System.out.println("******************解压完毕********************");
        System.out.println("******************遍历文件夹********************");
        String parent_id = "";
       // traverse(descDir,parent_id);
    }
    /**
     * 文件夹遍历
     * @param path
     * @throws Exception
     */
    public static void traverse(String path,String parent_id) throws Exception {
        System.out.println("path---->" + path);
        File file = new File(path);
        Map<String, Object> map = new HashMap<String, Object>();
        if (file.exists()) {
            File[] files = file.listFiles();
            if (files.length == 0) {
                System.out.println("文件夹是空的!");
                return;
            } else {
                String k_id = UUID.randomUUID().toString();
                for (File file2 : files) {
                    if (file2.isDirectory()) {//文件夹
                        traverse(file2.getAbsolutePath(),parent_id);
                        parent_id =  k_id;
                    } else if (file2.isFile()){//文件
                        //
//                        if (file2.getName().endsWith(".cfg")) {
//                            System.out.println("文件:" + file2.getAbsolutePath());
//                            map = readCfg(new FileInputStream(file2));
//                            System.out.println("-------------"+file2.getAbsolutePath()+"--start-----------");
//                            map.put("path_url", file2.getAbsolutePath());
//                            map.put("k_id", k_id);
//                            map.put("parent_id", parent_id);
//                            for (String key : map.keySet()) {
//                                System.out.println(key+"--->"+map.get(key));
//                            }
//                            parent_id = k_id;
//                            System.out.println("-------------"+file2.getAbsolutePath()+"--end-----------");
//                        }
                    }
                }
            }
        } else {
            System.out.println("文件不存在!");
        }
    }
    /**
     * 解析cfg文件
     *
     * @param cfgFile
     * @return
     */
//    public static Map<String, Object> readCfg(FileInputStream cfgFile) {
//        Properties prop = new Properties();
//        Map<String, Object> map = new HashMap<String, Object>();
//
//        try {
//            // 读取cfg属性文件
//            InputStream in = new BufferedInputStream(cfgFile);
//            prop.load(new InputStreamReader(in, "GBK")); /// 加载属性列表
//            Iterator<String> it = prop.stringPropertyNames().iterator();
//            while (it.hasNext()) {
//                String key = it.next();
//                map.put(key, prop.getProperty(key).replaceAll("\"", "").replaceAll(";", ""));
//            }
//            in.close();
//        } catch (Exception e) {
//            System.out.println(e);
//        }
//        return map;
//    }
    public static void main(String[] args) throws Exception {
        try {
            File file = new File("D:\\授权书图片.zip");
            unZipFiles(file, "D:\\授权书图片");
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}