package com.backup;
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import java.io.*;
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import java.util.zip.ZipEntry;
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import java.util.zip.ZipOutputStream;
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/**
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* 文件操作
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*/
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public class ZipUtil {
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public static void main(String[] args) throws IOException {
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copyFile("E:\\upload\\create\\1436144988371_JL33041594.xml","E:\\test\\upload");
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deleteFile("E:\\test\\upload\\");
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}
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/**
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* 移动 文件或者文件夹
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* @param oldPath
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* @param newPath
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* @throws IOException
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*/
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public static void moveTo(String oldPath,String newPath) throws IOException {
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copyFile(oldPath,newPath);
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deleteFile(oldPath);
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}
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/**
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* 删除 文件或者文件夹
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* @param filePath
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*/
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public static void deleteFile(String filePath){
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File file = new File(filePath);
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if (!file.exists()) {
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return;
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}
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if (file.isDirectory() ) {
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File[] list = file.listFiles();
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for (File f : list) {
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deleteFile(f.getAbsolutePath()) ;
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}
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}
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file.delete();
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}
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/**
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* 复制 文件或者文件夹
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* @param oldPath
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* @param newPath
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* @throws IOException
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*/
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public static void copyFile(String oldPath ,String newPath ) throws IOException {
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System.out.println("copy file from [" + oldPath + "] to [" + newPath +"]");
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File oldFile = new File(oldPath) ;
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if (oldFile.exists()) {
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if(oldFile.isDirectory()){ // 如果是文件夹
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File newPathDir = new File(newPath);
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newPathDir.mkdirs();
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File[] lists = oldFile.listFiles() ;
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if(lists != null && lists.length > 0 ){
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for (File file : lists) {
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copyFile(file.getAbsolutePath(), newPath.endsWith(File.separator) ? newPath + file.getName() : newPath + File.separator + file.getName()) ;
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}
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}
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}else {
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InputStream inStream = new FileInputStream(oldFile); //读入原文件
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FileOutputStream fs = new FileOutputStream(newPath);
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write2Out(inStream ,fs) ;
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inStream.close();
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}
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}
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}
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/**
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* 重命名文件
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* @param file
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* @param name
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* @return
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*/
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public static File renameFile(File file , String name ){
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String fileName = file.getParent() + File.separator + name ;
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File dest = new File(fileName);
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file.renameTo(dest) ;
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return dest ;
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}
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/**
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* 压缩多个文件。
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* @param zipFileName 压缩输出文件名
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* @param files 需要压缩的文件
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* @return
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* @throws Exception
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*/
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public static File createZip(String zipFileName, File... files) throws Exception {
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File outFile = new File(zipFileName) ;
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ZipOutputStream out = null;
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BufferedOutputStream bo = null;
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try {
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out = new ZipOutputStream(new FileOutputStream(outFile));
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bo = new BufferedOutputStream(out);
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for (File file : files) {
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zip(out, file, file.getName(), bo);
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}
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} catch (Exception e) {
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e.printStackTrace();
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}finally {
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try {
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bo.close();
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} finally {
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out.close(); // 输出流关闭
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}
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}
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return outFile;
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}
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/**
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*
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* @param zipFileName 压缩输出文件名
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* @param inputFile 需要压缩的文件
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* @return
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* @throws Exception
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*/
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public static File createZip(String zipFileName, File inputFile) throws Exception {
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File outFile = new File(zipFileName) ;
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ZipOutputStream out = null;
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BufferedOutputStream bo = null;
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try {
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out = new ZipOutputStream(new FileOutputStream(outFile));
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bo = new BufferedOutputStream(out);
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zip(out, inputFile, inputFile.getName(), bo);
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} catch (Exception e) {
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e.printStackTrace();
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}finally {
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try {
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bo.close();
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} finally {
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out.close(); // 输出流关闭
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}
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}
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return outFile;
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}
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private static void zip(ZipOutputStream out, File f, String base,BufferedOutputStream bo) throws Exception { // 方法重载
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if (f.isDirectory()) {
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File[] fl = f.listFiles();
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if ( fl == null || fl.length == 0) {
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out.putNextEntry(new ZipEntry(base + "/")); // 创建创建一个空的文件夹
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}else{
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for (int i = 0; i < fl.length; i++) {
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zip(out, fl[i], base + "/" + fl[i].getName(), bo); // 递归遍历子文件夹
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}
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}
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} else {
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out.putNextEntry(new ZipEntry(base)); // 创建zip压缩进入 base 文件
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//System.out.println(base);
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BufferedInputStream bi = new BufferedInputStream(new FileInputStream(f));
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try {
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write2Out(bi,out) ;
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} catch (IOException e) {
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//Ignore
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}finally {
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bi.close();// 输入流关闭
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}
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}
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}
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private static void write2Out(InputStream input , OutputStream out) throws IOException {
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byte[] b = new byte[1024];
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int c = 0 ;
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while ( (c = input.read(b)) != -1 ) {
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out.write(b,0,c);
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out.flush();
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}
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out.flush();
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}
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}
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