java压缩文件的代码

import java.io.File;
import org.apache.tools.zip.ZipOutputStream; //这个包在ant.jar里，要到官方网下载
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipEntry;

  public class CompressBook {
      public CompressBook() {}

      /*
     * inputFileName 输入一个文件夹
     * zipFileName 输出一个压缩文件夹
     */
      public void zip(String inputFileName) throws Exception {
         String zipFileName = "c:\\test.zip"; //打包后文件名字
         System.out.println(zipFileName);
         zip(zipFileName, new File(inputFileName));
     }

      private void zip(String zipFileName, File inputFile) throws Exception {
         ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFileName));
         zip(out, inputFile, "");
         System.out.println("zip done");
         out.close();
     }

      private void zip(ZipOutputStream out, File f, String base) throws Exception {
          if (f.isDirectory()) {
            File[] fl = f.listFiles();
            out.putNextEntry(new ZipEntry(base + "/"));
            base = base.length() == 0 ? "" : base + "/";
             for (int i = 0; i < fl.length; i++) {
            zip(out, fl[i], base + fl[i].getName());
          }
          }else {
            out.putNextEntry(new ZipEntry(base));
            FileInputStream in = new FileInputStream(f);
            int b;
            System.out.println(base);
             while ( (b = in.read()) != -1) {
             out.write(b);
          }
          in.close();
        }
     }

      public static void main(String [] temp){
         CompressBook book = new CompressBook();
          try {
            book.zip("c:\\c");//你要压缩的文件夹
          }catch (Exception ex) {
            ex.printStackTrace();
        }
     }
}
转载http://zxs19861202.iteye.com/blog/569449