- import java.io.File;
- import java.io.FileInputStream;
- import java.io.FileOutputStream;
- import java.io.IOException;
- import java.io.InputStream;
- import java.util.Enumeration;
- import org.apache.tools.zip.ZipEntry;
- import org.apache.tools.zip.ZipFile;
- import org.apache.tools.zip.ZipOutputStream;
- import org.slf4j.Logger;
- import org.slf4j.LoggerFactory;
- /**
- * 压缩,解压,删除,拷贝操作。
- * 注意:此类中用到的压缩类ZipEntry等都来自于org.apache.tools包而非java.util。此包在ant.jar中有。
- *
- * * @author Tony
- */
- public class FileUtil {
- protected static Logger log = LoggerFactory.getLogger(FileUtil.class);
- /**
- *
- * 压缩文件
- *
- * @param inputFileName
- * 要压缩的文件或文件夹路径,例如:c:\\a.txt,c:\\a\
- *
- * @param outputFileName
- * 输出zip文件的路径,例如:c:\\a.zip
- *
- */
- public static void zip(String inputFileName, String outputFileName)
- throws Exception {
- ZipOutputStream out = new ZipOutputStream(new FileOutputStream(
- outputFileName));
- zip(out, new File(inputFileName), "");
- log.debug("压缩完成!");
- out.closeEntry();
- out.close();
- }
- /**
- *
- * 压缩文件
- *
- * @param out
- * org.apache.tools.zip.ZipOutputStream
- *
- * @param file
- * 待压缩的文件
- *
- * @param base
- * 压缩的根目录
- *
- */
- private static void zip(ZipOutputStream out, File file, String base)
- throws Exception {
- if (file.isDirectory()) {
- File[] fl = file.listFiles();
- base = base.length() == 0 ? "" : base + File.separator;
- for (int i = 0; i < fl.length; i++) {
- zip(out, fl[i], base + fl[i].getName());
- }
- } else {
- out.putNextEntry(new ZipEntry(base));
- log.debug("添加压缩文件:" + base);
- FileInputStream in = new FileInputStream(file);
- int b;
- while ((b = in.read()) != -1) {
- out.write(b);
- }
- in.close();
- }
- }
- /**
- *
- * 解压zip文件
- *
- * @param zipFileName
- * 待解压的zip文件路径,例如:c:\\a.zip
- *
- * @param outputDirectory
- * 解压目标文件夹,例如:c:\\a\
- *
- */
- public static void unZip(String zipFileName, String outputDirectory)
- throws Exception {
- ZipFile zipFile = new ZipFile(zipFileName);
- try {
- Enumeration<?> e = zipFile.getEntries();
- ZipEntry zipEntry = null;
- createDirectory(outputDirectory, "");
- while (e.hasMoreElements()) {
- zipEntry = (ZipEntry) e.nextElement();
- log.debug("解压:" + zipEntry.getName());
- if (zipEntry.isDirectory()) {
- String name = zipEntry.getName();
- name = name.substring(0, name.length() - 1);
- File f = new File(outputDirectory + File.separator + name);
- f.mkdir();
- log
- .debug("创建目录:" + outputDirectory + File.separator
- + name);
- } else {
- String fileName = zipEntry.getName();
- fileName = fileName.replace('\\', '/');
- if (fileName.indexOf("/") != -1) {
- createDirectory(outputDirectory, fileName.substring(0,
- fileName.lastIndexOf("/")));
- fileName = fileName.substring(
- fileName.lastIndexOf("/") + 1, fileName
- .length());
- }
- File f = new File(outputDirectory + File.separator
- + zipEntry.getName());
- f.createNewFile();
- InputStream in = zipFile.getInputStream(zipEntry);
- FileOutputStream out = new FileOutputStream(f);
- byte[] by = new byte[1024];
- int c;
- while ((c = in.read(by)) != -1) {
- out.write(by, 0, c);
- }
- in.close();
- out.close();
- }
- }
- } catch (Exception ex) {
- System.out.println(ex.getMessage());
- } finally {
- zipFile.close();
- log.debug("解压完成!");
- }
- }
- /**
- * 功能描述:列出某文件夹及其子文件夹下面的文件,并可根据扩展名过滤
- *
- * @param path
- * 文件
- */
- public static void list(File path) {
- if (!path.exists()) {
- System.out.println("文件名称不存?");
- } else {
- if (path.isFile()) {
- if (path.getName().toLowerCase().endsWith(".pdf")
- || path.getName().toLowerCase().endsWith(".doc")
- || path.getName().toLowerCase().endsWith(".chm")
- || path.getName().toLowerCase().endsWith(".html")
- || path.getName().toLowerCase().endsWith(".htm")) {// 文件格式
- System.out.println(path);
- System.out.println(path.getName());
- }
- } else {
- File[] files = path.listFiles();
- for (int i = 0; i < files.length; i++) {
- list(files[i]);
- }
- }
- }
- }
- /**
- *
- * @param directory
- * @param subDirectory
- */
- private static void createDirectory(String directory, String subDirectory) {
- String dir[];
- File fl = new File(directory);
- try {
- if (subDirectory == "" && fl.exists() != true) {
- fl.mkdir();
- } else if (subDirectory != "") {
- dir = subDirectory.replace('\\', '/').split("/");
- for (int i = 0; i < dir.length; i++) {
- File subFile = new File(directory + File.separator + dir[i]);
- if (subFile.exists() == false)
- subFile.mkdir();
- directory += File.separator + dir[i];
- }
- }
- } catch (Exception ex) {
- System.out.println(ex.getMessage());
- }
- }
- /**
- *
- * 拷贝文件夹中的所有文件到另外一个文件夹
- *
- * @param srcDirector
- * 源文件夹
- *
- * @param desDirector
- * 目标文件夹
- *
- */
- public static void copyFileWithDirector(String srcDirector,
- String desDirector) throws IOException {
- (new File(desDirector)).mkdirs();
- File[] file = (new File(srcDirector)).listFiles();
- for (int i = 0; i < file.length; i++) {
- if (file[i].isFile()) {
- log.debug("拷贝:" + file[i].getAbsolutePath() + "-->"
- + desDirector + "/" + file[i].getName());
- FileInputStream input = new FileInputStream(file[i]);
- FileOutputStream output = new FileOutputStream(desDirector
- + "/" + file[i].getName());
- byte[] b = new byte[1024 * 5];
- int len;
- while ((len = input.read(b)) != -1) {
- output.write(b, 0, len);
- }
- output.flush();
- output.close();
- input.close();
- }
- if (file[i].isDirectory()) {
- log.debug("拷贝:" + file[i].getAbsolutePath() + "-->"
- + desDirector + "/" + file[i].getName());
- copyFileWithDirector(srcDirector + "/" + file[i].getName(),
- desDirector + "/" + file[i].getName());
- }
- }
- }
- /**
- *
- * 删除文件夹
- *
- * @param folderPath
- * folderPath 文件夹完整绝对路径
- *
- */
- public static void delFolder(String folderPath) throws Exception {
- // 删除完里面所有内容
- delAllFile(folderPath);
- String filePath = folderPath;
- filePath = filePath.toString();
- File myFilePath = new File(filePath);
- // 删除空文件夹
- myFilePath.delete();
- }
- /**
- *
- * 删除指定文件夹下所有文件
- *
- * @param path
- * 文件夹完整绝对路径
- *
- */
- public static boolean delAllFile(String path) throws Exception {
- boolean flag = false;
- File file = new File(path);
- if (!file.exists()) {
- return flag;
- }
- if (!file.isDirectory()) {
- return flag;
- }
- String[] tempList = file.list();
- File temp = null;
- for (int i = 0; i < tempList.length; i++) {
- if (path.endsWith(File.separator)) {
- temp = new File(path + tempList[i]);
- } else {
- temp = new File(path + File.separator + tempList[i]);
- }
- if (temp.isFile()) {
- temp.delete();
- }
- if (temp.isDirectory()) {
- // 先删除文件夹里面的文件
- delAllFile(path + "/" + tempList[i]);
- // 再删除空文件夹
- delFolder(path + "/" + tempList[i]);
- flag = true;
- }
- }
- return flag;
- }
- /**
- * @param args
- */
- public static void main(String[] args) {
- // TODO Auto-generated method stub
- File file = new File("H:\\");
- list(file);
- }
- }
来源: http://www.phpxs.com/code/1002449/