java打zip包 基于ant

package org.leopard.utils;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 javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.apache.tools.zip.ZipEntry;import org.apache.tools.zip.ZipOutputStream;public class ZipUtil {public static void ZipFiles(List<String> srcfile, String zipPath) {    byte[] buf = new byte[4096];    ZipOutputStream out = null;    try {      // 创建zip输出流      out = new ZipOutputStream(new FileOutputStream(zipPath));      // 循环将源文件列表添加到zip文件中      for (int i = 0; i < srcfile.size(); i++) {    File file = new File(srcfile.get(i));        FileInputStream in = new FileInputStream(file);        String fileName = file.getName();        out.putNextEntry(new ZipEntry(fileName));        int len;        while ( (len = in.read(buf)) > 0) {          out.write(buf, 0, len);        }        out.closeEntry();        in.close();      }    }    catch (IOException e) {      e.printStackTrace();    } finally {    if (null != out) {    try {out.close();out = null;} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}    }        }}public static void ZipFiles(HttpServletRequest request, HttpServletResponse response, List<String> srcfile, String downloadZipFileName) {    byte[] buf = new byte[4096];    try {      // Create the ZIP file     // ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipPath));     ZipOutputStream out = new ZipOutputStream(response.getOutputStream());//--设置成这样可以不用保存在本地，再输出， 通过response流输出。      // Compress the files     if (request.getHeader("User-Agent").toLowerCase().indexOf("firefox") > 0) {     downloadZipFileName = new String(downloadZipFileName.getBytes("GB2312"),"ISO-8859-1");        } else {        // 对文件名进行编码处理中文问题        downloadZipFileName = java.net.URLEncoder.encode(downloadZipFileName, "UTF-8");// 处理中文文件名的问题        downloadZipFileName = new String(downloadZipFileName.getBytes("UTF-8"), "GBK");// 处理中文文件名的问题        }     response.reset(); // 重点突出        response.setCharacterEncoding("UTF-8"); // 重点突出        response.setContentType("application/x-msdownload");// 不同类型的文件对应不同的MIME类型 // 重点突出        // inline在浏览器中直接显示，不提示用户下载        // attachment弹出对话框，提示用户进行下载保存本地        // 默认为inline方式        response.setHeader("Content-Disposition", "attachment;filename="+downloadZipFileName);      for (int i = 0; i < srcfile.size(); i++) {    File file = new File(srcfile.get(i));        FileInputStream in = new FileInputStream(file);        // Add ZIP entry to output stream.        String fileName = file.getName();        out.putNextEntry(new ZipEntry(fileName));        // 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 (IOException e) {      e.printStackTrace();    }}public static void main(String[] args) {List<String> paths = new ArrayList<String>();paths.add("d:/地理编码系统详细设计V1.0.docx");paths.add("d:/中国联通协同办公项目.ppt");ZipFiles(paths, "d:/zipfiles/info.zip");}}