private ZipInputStream zipIn; // 解压Zipprivate ZipOutputStream zipOut; // 压缩Zipprivate ZipEntry zipEntry;private static int bufSize; // size of bytesprivate byte[] buf;private int readedBytes;// 压缩文件夹内的文件public void doZip(String zipDirectory) {// zipDirectoryPath:需要压缩的文件夹名File file;File zipDir;zipDir = new File(zipDirectory);String zipFileName = zipDirectory + ".zip";// 压缩后生成的zip文件名try {this.zipOut = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(zipFileName)));handleDir(zipDir, this.zipOut);this.zipOut.close();} catch (Exception ioe) {ioe.printStackTrace();}}// 由doZip调用,递归完成目录文件读取private void handleDir(File dir, ZipOutputStream zipOut) throws Exception {FileInputStream fileIn;File[] files;files = dir.listFiles();if (files.length == 0) {// 如果目录为空,则单独创建之.// ZipEntry的isDirectory()方法中,目录以"/"结尾.this.zipOut.putNextEntry(new ZipEntry(dir.toString() + "/"));this.zipOut.closeEntry();} else {// 如果目录不为空,则分别处理目录和文件.for (File fileName : files) {if (fileName.isDirectory()) {handleDir(fileName, this.zipOut);} else {fileIn = new FileInputStream(fileName);String name = dir.getName();// 生成的压缩包存放在原目录下this.zipOut.putNextEntry(new ZipEntry(name + "/"+ fileName.getName().toString()));// 此方法存放在该项目目录下// this.zipOut.putNextEntry(new// ZipEntry(fileName.toString()));while ((this.readedBytes = fileIn.read(this.buf)) > 0) {this.zipOut.write(this.buf, 0, this.readedBytes);}this.zipOut.closeEntry();}}}}// 解压指定zip文件public void unZip(String unZipfileName) {// unZipfileName需要解压的zip文件名FileOutputStream fileOut;File file;String f = unZipfileName.substring(0, unZipfileName.length() - 4);File ff = new File(f);try {this.zipIn = new ZipInputStream(new BufferedInputStream(new FileInputStream(unZipfileName)));while ((this.zipEntry = this.zipIn.getNextEntry()) != null) {file = new File(this.zipEntry.getName());if (this.zipEntry.isDirectory()) {file.mkdirs();} else {// 如果指定文件的目录不存在,则创建之.File parent = file.getParentFile();if (!parent.exists()) {parent.mkdirs();}if (!ff.exists()) {ff.mkdir();}fileOut = new FileOutputStream(f + "/" + file.getName());// fileOut = new FileOutputStream(file); 此方法存放到该项目目录下while ((this.readedBytes = this.zipIn.read(this.buf)) > 0) {fileOut.write(this.buf, 0, this.readedBytes);}fileOut.close();}this.zipIn.closeEntry();}} catch (Exception ioe) {ioe.printStackTrace();}}