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 07:17 223阅读 0赞

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();
            }
        }
    }