文件压缩解压

package com.espeed.tool;
//压缩文件
import java.io.*;

import javax.crypto.CipherInputStream;

import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipOutputStream;
public class FileMgr {
  public FileMgr() {
  }
 
  /**
   * 压缩文件
   * @param srcfile CipherInputStream[]  需要压缩的文件流的列表
   * @param zipfile File    压缩后的文件
   * @param 被压所文件的文件名
   *  */
  public static void ZipFiles(CipherInputStream[] srcfile, java.io.File zipfile,String[] fileName) {
      
       try {
            byte[] buf = new byte[1024];
               FileOutputStream fout = new FileOutputStream(zipfile);
               ZipOutputStream out = new ZipOutputStream(fout); // 解决中文问题的关键所在
               out.setEncoding("gbk");
               for (int i = 0; i < srcfile.length; i++) {
                   CipherInputStream in = srcfile[i];
                 // Add ZIP entry to output stream.
                 out.putNextEntry(new ZipEntry(fileName[i]+".eml"));
                 // Transfer bytes from the file to the ZIP file
                 int len;
                 while ( (len = in.read(buf)) > 0) {
                     out.write(buf, 0, len);
                 }
                 // Complete the entry
                 out.closeEntry();
                 in.close();
               }
               // Complete the ZIP file
               out.close();
               System.out.println("压缩完成.");
    } catch (Exception e) {
    }
    }
 

  /**
   * 解压缩
   * @param zipfile File 需要解压缩的文件
   * @param descDir String  解压后的目标目录
   */
  public static void UnZipFiles(java.io.File zipfile, String descDir) {
    try {
      // Open the ZIP file
      ZipFile zf = new ZipFile(zipfile);
      for (Enumeration entries = zf.entries(); entries.hasMoreElements(); ) {
        // Get the entry name
        ZipEntry entry = ( (ZipEntry) entries.nextElement());
        String zipEntryName = entry.getName();
        InputStream in = zf.getInputStream(entry);
        // System.out.println(zipEntryName);
        OutputStream out = new FileOutputStream(descDir + zipEntryName);
        byte[] buf1 = new byte[1024];
        int len;
        while ( (len = in.read(buf1)) > 0) {
          out.write(buf1, 0, len);
        }
        // Close the file and stream
        in.close();
        out.close();
        System.out.println("解压缩完成.");
      }
    }
    catch (IOException e) {
      e.printStackTrace();
    }

  }

  public static void main(String[] args){
      File[] srcfile = new File[2];
      srcfile[0]=new File("d://ccc.eml");
      srcfile[1]=new File("d://cccc.eml");
      File zipfile = new File("D://zip/zip.zip");  
      ZipFiles(srcfile, zipfile);
      System.out.println("ok");
  }

}