try {ZipUtil2.zip(exportPath, exportPath+".zip");} catch (Exception e) {// TODO Auto-generated catch block
            e.printStackTrace();}

package com.tecsun.idc.utils;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 java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import java.util.zip.ZipOutputStream;public class ZipUtil2 {public static void zip(String src, String dest) throws IOException {//提供了一个数据项压缩成一个ZIP归档输出流ZipOutputStream out = null;try {File outFile = new File(dest);//源文件或者目录File fileOrDirectory = new File(src);//压缩文件路径out = new ZipOutputStream(new FileOutputStream(outFile));//如果此文件是一个文件，否则为false。if (fileOrDirectory.isFile()) {zipFileOrDirectory(out, fileOrDirectory, "");} else {//返回一个文件或空阵列。File[] entries = fileOrDirectory.listFiles();for (int i = 0; i < entries.length; i++) {// 递归压缩，更新curPathszipFileOrDirectory(out, entries[i], "");}}} catch (IOException ex) {ex.printStackTrace();} finally {//关闭输出流if (out != null) {try {out.close();} catch (IOException ex) {ex.printStackTrace();}}}}private static void zipFileOrDirectory(ZipOutputStream out,File fileOrDirectory, String curPath) throws IOException {//从文件中读取字节的输入流FileInputStream in = null;try {//如果此文件是一个目录，否则返回false。if (!fileOrDirectory.isDirectory()) {// 压缩文件byte[] buffer = new byte[4096];int bytes_read;in = new FileInputStream(fileOrDirectory);//实例代表一个条目内的ZIP归档ZipEntry entry = new ZipEntry(curPath+ fileOrDirectory.getName());//条目的信息写入底层流
        out.putNextEntry(entry);while ((bytes_read = in.read(buffer)) != -1) {out.write(buffer, 0, bytes_read);}out.closeEntry();} else {// 压缩目录File[] entries = fileOrDirectory.listFiles();for (int i = 0; i < entries.length; i++) {// 递归压缩，更新curPaths
         zipFileOrDirectory(out, entries[i], curPath+ fileOrDirectory.getName() + "/");}}} catch (IOException ex) {ex.printStackTrace();// throw ex;} finally {if (in != null) {try {in.close();} catch (IOException ex) {ex.printStackTrace();}}}}@SuppressWarnings("unchecked")public static void unzip(String zipFileName, String outputDirectory)throws IOException {ZipFile zipFile = null;try {zipFile = new ZipFile(zipFileName);Enumeration e = zipFile.entries();ZipEntry zipEntry = null;File dest = new File(outputDirectory);dest.mkdirs();while (e.hasMoreElements()) {zipEntry = (ZipEntry) e.nextElement();String entryName = zipEntry.getName();InputStream in = null;FileOutputStream out = null;try {if (zipEntry.isDirectory()) {String name = zipEntry.getName();name = name.substring(0, name.length() - 1);File f = new File(outputDirectory + File.separator+ name);f.mkdirs();} else {int index = entryName.lastIndexOf("\\");if (index != -1) {File df = new File(outputDirectory + File.separator+ entryName.substring(0, index));df.mkdirs();}index = entryName.lastIndexOf("/");if (index != -1) {File df = new File(outputDirectory + File.separator+ entryName.substring(0, index));df.mkdirs();}File f = new File(outputDirectory + File.separator+ zipEntry.getName());// f.createNewFile();in = zipFile.getInputStream(zipEntry);out = new FileOutputStream(f);int c;byte[] by = new byte[1024];while ((c = in.read(by)) != -1) {out.write(by, 0, c);}out.flush();}} catch (IOException ex) {ex.printStackTrace();throw new IOException("解压失败：" + ex.toString());} finally {if (in != null) {try {in.close();} catch (IOException ex) {}}if (out != null) {try {out.close();} catch (IOException ex) {}}}}} catch (IOException ex) {ex.printStackTrace();throw new IOException("解压失败：" + ex.toString());} finally {if (zipFile != null) {try {zipFile.close();} catch (IOException ex) {}}}}}