java文件压缩类

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.apache.tools.ant.Project;
import org.apache.tools.ant.taskdefs.Zip;
import org.apache.tools.ant.types.FileSet;
import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipOutputStream;

/**
* <p>类描述：压缩工具</p>
*
* @author: zhudz18200
* @version: 2016-8-22下午06:35:37
* ***********************************************
* @Copyright: 2016 恒生电子股份有限公司.
* All right reserved.
* ***********************************************
*/
public class ZipUtils {

   /**
   * 文件压缩
   *
   * @param fileName
   * 待压缩文件名
   * @param zipFileName
   * 压缩后文件名
   * @param path
   * 文件路径
   */
   @SuppressWarnings("unchecked")
   public static void genZipFile(String fileName, String zipFileName,
           String path) {
       List list = new ArrayList();
       list.add(fileName);
       genZipFile(list, zipFileName, path);
   }

   /**
   * 将文件列表中指定的文件打包成zip文件
   *
   * @param fileList
   *                待压缩文件名列表
   * @param zipFileName
   *                压缩后文件名
   * @param path
   *     文件路径
   */
   public static void genZipFile(List fileList, String zipFileName, String path) {

byte[] buf = new byte[8192];

try {

String outFilename = null;

           if (path.endsWith("/") || path.endsWith("\\")) {
               int index = path.lastIndexOf("/");
               if (index != -1) {
                   path = path.substring(0, index);
               } else {
                   index = path.lastIndexOf("\\");
                   path = path.substring(0, index);
               }

           }
           outFilename = path + "/" + zipFileName;
           ZipOutputStream out = new ZipOutputStream(new FileOutputStream(
                   outFilename));
           out.setEncoding("GBK");
           for (int i = 0; i < fileList.size(); i++) {
               FileInputStream in = new FileInputStream(path + "/"
                       + fileList.get(i));
               out.putNextEntry(new ZipEntry((String) fileList.get(i)));
               int len;
               while ((len = in.read(buf)) > 0) {
                   out.write(buf, 0, len);
               }
               out.closeEntry();
               in.close();
           }
           out.close();
       } catch (IOException e) {
       }
   }

   /**
   * 将文件/文件夹打包成zip文件
   *
   * @param zipFileName
   *                压缩后文件名
   * @param path
   *     文件路径
   */
   public static void genZipFile(String zipFileName, String path) {

       File zipFile = new File(zipFileName);

File srcdir = new File(path);
if (!srcdir.exists()){
throw new RuntimeException(path + "不存在！");
}

Project project = new Project();
Zip zip = new Zip();
zip.setProject(project);
zip.setDestFile(zipFile);
FileSet fileSet = new FileSet();
fileSet.setProject(project);
fileSet.setDir(srcdir);
//fileSet.setIncludes("**/*.java"); //包括哪些文件或文件夹 eg:zip.setIncludes("*.java");
//fileSet.setExcludes(...); //排除哪些文件或文件夹
zip.addFileset(fileSet);
zip.execute();
}

   /**
   * @param args
   */
   public static void main(String[] args) {

       try {
//           String fileName = "44444444444_关于非信政测试项目的事前报告.txt";
//           fileName=new String(fileName.getBytes(),"utf-8");
           String path = "D://home/weblogic/attach/temp";
//           List<String> fileList = new ArrayList<String>();
//           fileList.add(fileName);
//           fileList.add("44444444444_关于未付项目的事前报告.txt");
//           ZipUtils.genZipFile(fileList, "test111.zip", path);

           ZipUtils.genZipFile( path+ "/" +"test222.zip", path);
       } catch (Exception e) {
           // TODO Auto-generated catch block
           e.printStackTrace();
       }

}
}

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