• Java zip 压缩 文件夹删除,移动,重命名,复制



    FileUtil.java

    import java.io.*;
    import java.util.List;
    import java.util.zip.ZipEntry;
    import java.util.zip.ZipOutputStream;
    
    /**
     * 文件操作
     * Created by heavenick on 2015/7/8.
     */
    public class FileUtil {
    
        public static void main(String[] args) throws IOException {
            copyFile("E:\upload\create\1436144988371_JL33041594.xml","E:\test\upload");
    //        deleteFile("E:\test\upload\");
        }    /**
         * 移动 文件或者文件夹
         * @param oldPath
         * @param newPath
         * @throws IOException
         */
        public static void moveTo(String oldPath,String newPath) throws IOException {
            copyFile(oldPath,newPath);
            deleteFile(oldPath);
        }
    
        /**
         * 删除 文件或者文件夹
         * @param filePath
         */
        public static void deleteFile(String filePath){
            File file = new File(filePath);
            if (!file.exists()) {
                return;
            }
            if (file.isDirectory() ) {
                File[] list = file.listFiles();
    
                for (File f : list) {
                    deleteFile(f.getAbsolutePath()) ;
                }
            }
            file.delete();
        }
    
        /**
         * 复制 文件或者文件夹
         * @param oldPath
         * @param newPath
         * @throws IOException
         */
        public static void  copyFile(String oldPath ,String newPath ) throws IOException {
            System.out.println("copy file from [" + oldPath + "] to [" + newPath +"]");
    
            File oldFile = new File(oldPath) ;
            if  (oldFile.exists())  {
    
                if(oldFile.isDirectory()){ // 如果是文件夹
                    File newPathDir = new File(newPath);
                    newPathDir.mkdirs();
                    File[] lists = oldFile.listFiles() ;
                    if(lists != null && lists.length > 0 ){
                        for (File file : lists) {
                            copyFile(file.getAbsolutePath(), newPath.endsWith(File.separator) ? newPath + file.getName() : newPath + File.separator + file.getName()) ;
                        }
                    }
                }else {
                    InputStream  inStream  =  new  FileInputStream(oldFile);  //读入原文件
                    FileOutputStream  fs  =  new  FileOutputStream(newPath);
                    write2Out(inStream ,fs) ;
                    inStream.close();
                }
            }
        }
    
        /**
         * 重命名文件
         * @param file
         * @param name
         * @return
         */
        public static File renameFile(File file , String name ){
            String fileName = file.getParent()  + File.separator + name ;
            File dest = new File(fileName);
            file.renameTo(dest) ;
            return dest ;
        }
    
        /**
         * 压缩多个文件。
         * @param zipFileName 压缩输出文件名
         * @param files 需要压缩的文件
         * @return
         * @throws Exception
         */
        public static File createZip(String zipFileName, File... files) throws Exception {
            File outFile = new File(zipFileName) ;
            ZipOutputStream out = null;
            BufferedOutputStream bo = null;
            try {
                out = new ZipOutputStream(new FileOutputStream(outFile));
                bo = new BufferedOutputStream(out);
    
                for (File file : files) {
                    zip(out, file, file.getName(), bo);
                }
            } catch (Exception e) {
                e.printStackTrace();
            }finally {
                try {
                    bo.close();
                } finally {
                    out.close(); // 输出流关闭
                }
            }
            return outFile;
        }
    
        /**
         *
         * @param zipFileName 压缩输出文件名
         * @param inputFile 需要压缩的文件
         * @return
         * @throws Exception
         */
        public static File createZip(String zipFileName, File inputFile) throws Exception {
            File outFile = new File(zipFileName) ;
            ZipOutputStream out = null;
            BufferedOutputStream bo = null;
            try {
                out = new ZipOutputStream(new FileOutputStream(outFile));
                bo = new BufferedOutputStream(out);
                zip(out, inputFile, inputFile.getName(), bo);
            } catch (Exception e) {
                e.printStackTrace();
            }finally {
                try {
                    bo.close();
                } finally {
                    out.close(); // 输出流关闭
                }
            }
            return outFile;
        }
    
        private static void zip(ZipOutputStream out, File f, String base,BufferedOutputStream bo) throws Exception { // 方法重载
            if (f.isDirectory()) {
                File[] fl = f.listFiles();
                if ( fl == null ||  fl.length == 0) {
                    out.putNextEntry(new ZipEntry(base + "/")); // 创建创建一个空的文件夹
                }else{
                    for (int i = 0; i < fl.length; i++) {
                        zip(out, fl[i], base + "/" + fl[i].getName(), bo); // 递归遍历子文件夹
                    }
                }
    
            } else {
                out.putNextEntry(new ZipEntry(base)); // 创建zip压缩进入 base 文件
                System.out.println(base);
                BufferedInputStream bi = new BufferedInputStream(new FileInputStream(f));
    
                try {
                    write2Out(bi,out) ;
                } catch (IOException e) {
                    //Ignore
                }finally {
                    bi.close();// 输入流关闭
                }
            }
        }
    
        private static void write2Out(InputStream input , OutputStream out) throws IOException {
            byte[] b = new byte[1024];
            int c = 0 ;
            while ( (c = input.read(b)) != -1 ) {
                out.write(b,0,c);
                out.flush();
            }
            out.flush();
        }
    }
    
    
  • 相关阅读:
    linux初学者-正则表达式
    linux初学者-文件管理篇
    linux初学者-常用基本命令篇
    初学者的linux
    java中接口的定义和接口的实现
    深入理解Java的接口和抽象类
    在pom.xml中的dependencies点击add怎么没有搜索到相关jar包
    json对象(对象+数组)
    poi导出模板(我的备份)
    js对象和数组的定义
  • 原文地址:https://www.cnblogs.com/qixidi/p/10213564.html
Copyright © 2020-2023  润新知