【转】Java压缩和解压文件工具类ZipUtil

特别提示：本人博客部分有参考网络其他博客，但均是本人亲手编写过并验证通过。如发现博客有错误，请及时提出以免误导其他人，谢谢！欢迎转载，但记得标明文章出处：http://www.cnblogs.com/mao2080/

 package com.utility.zip;

 import java.io.BufferedInputStream;
 import java.io.BufferedOutputStream;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipInputStream;
 import java.util.zip.ZipOutputStream;

 import com.utility.io.IOUtil;

 /**
  * 通过Java的Zip输入输出流实现压缩和解压文件
  *
  * @author liujiduo
  *
  */
 public final class ZipUtil {

     private ZipUtil() {
         // empty
     }

     /**
      * 压缩文件
      *
      * @param filePath
      *            待压缩的文件路径
      * @return 压缩后的文件
      */
     public static File zip(String filePath) {
         File target = null;
         File source = new File(filePath);
         if (source.exists()) {
             // 压缩文件名=源文件名.zip
             String zipName = source.getName() + ".zip";
             target = new File(source.getParent(), zipName);
             if (target.exists()) {
                 target.delete(); // 删除旧的文件
             }
             FileOutputStream fos = null;
             ZipOutputStream zos = null;
             try {
                 fos = new FileOutputStream(target);
                 zos = new ZipOutputStream(new BufferedOutputStream(fos));
                 // 添加对应的文件Entry
                 addEntry("/", source, zos);
             } catch (IOException e) {
                 throw new RuntimeException(e);
             } finally {
                 IOUtil.closeQuietly(zos, fos);
             }
         }
         return target;
     }

     /**
      * 扫描添加文件Entry
      *
      * @param base
      *            基路径
      *
      * @param source
      *            源文件
      * @param zos
      *            Zip文件输出流
      * @throws IOException
      */
     private static void addEntry(String base, File source, ZipOutputStream zos)
             throws IOException {
         // 按目录分级，形如：/aaa/bbb.txt
         String entry = base + source.getName();
         if (source.isDirectory()) {
             for (File file : source.listFiles()) {
                 // 递归列出目录下的所有文件，添加文件Entry
                 addEntry(entry + "/", file, zos);
             }
         } else {
             FileInputStream fis = null;
             BufferedInputStream bis = null;
             try {
                 byte[] buffer = new byte[1024 * 10];
                 fis = new FileInputStream(source);
                 bis = new BufferedInputStream(fis, buffer.length);
                 int read = 0;
                 zos.putNextEntry(new ZipEntry(entry));
                 while ((read = bis.read(buffer, 0, buffer.length)) != -1) {
                     zos.write(buffer, 0, read);
                 }
                 zos.closeEntry();
             } finally {
                 IOUtil.closeQuietly(bis, fis);
             }
         }
     }

     /**
      * 解压文件
      *
      * @param filePath
      *            压缩文件路径
      */
     public static void unzip(String filePath) {
         File source = new File(filePath);
         if (source.exists()) {
             ZipInputStream zis = null;
             BufferedOutputStream bos = null;
             try {
                 zis = new ZipInputStream(new FileInputStream(source));
                 ZipEntry entry = null;
                 while ((entry = zis.getNextEntry()) != null
                         && !entry.isDirectory()) {
                     File target = new File(source.getParent(), entry.getName());
                     if (!target.getParentFile().exists()) {
                         // 创建文件父目录
                         target.getParentFile().mkdirs();
                     }
                     // 写入文件
                     bos = new BufferedOutputStream(new FileOutputStream(target));
                     int read = 0;
                     byte[] buffer = new byte[1024 * 10];
                     while ((read = zis.read(buffer, 0, buffer.length)) != -1) {
                         bos.write(buffer, 0, read);
                     }
                     bos.flush();
                 }
                 zis.closeEntry();
             } catch (IOException e) {
                 throw new RuntimeException(e);
             } finally {
                 IOUtil.closeQuietly(zis, bos);
             }
         }
     }

     public static void main(String[] args) {
         String targetPath = "E:\\Win7壁纸";
         File file = ZipUtil.zip(targetPath);
         System.out.println(file);
         ZipUtil.unzip("F:\\Win7壁纸.zip");
     }
 }

 package com.utility.io;

 import java.io.Closeable;
 import java.io.IOException;

 /**
  * IO流工具类
  *
  * @author liujiduo
  *
  */
 public class IOUtil {
     /**
      * 关闭一个或多个流对象
      *
      * @param closeables
      *            可关闭的流对象列表
      * @throws IOException
      */
     public static void close(Closeable... closeables) throws IOException {
         if (closeables != null) {
             for (Closeable closeable : closeables) {
                 if (closeable != null) {
                     closeable.close();
                 }
             }
         }
     }

     /**
      * 关闭一个或多个流对象
      *
      * @param closeables
      *            可关闭的流对象列表
      */
     public static void closeQuietly(Closeable... closeables) {
         try {
             close(closeables);
         } catch (IOException e) {
             // do nothing
         }
     }

 }

参考网站

https://www.oschina.net/code/snippet_1021818_48130