java的ant.jar zip打包 utils工具類

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 {
     // 創建zip輸出流
     out = new ZipOutputStream(new FileOutputStream(zipPath));
     // 循環將源文件列表添加到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 block
e.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());//--設置成這樣可以不用保存在本地，再輸出， 通過response流輸出。
     // Compress the files
    if (request.getHeader("User-Agent").toLowerCase().indexOf("firefox") > 0) {
    downloadZipFileName = new String(downloadZipFileName.getBytes("GB2312"),"ISO-8859-1");
       } else {
        // 對文件名進行編碼處理中文問題
        downloadZipFileName = java.net.URLEncoder.encode(downloadZipFileName, "UTF-8");// 處理中文文件名的問題
        downloadZipFileName = new String(downloadZipFileName.getBytes("UTF-8"), "GBK");// 處理中文文件名的問題
       }
    response.reset(); // 重點突出
       response.setCharacterEncoding("UTF-8"); // 重點突出
       response.setContentType("application/x-msdownload");// 不同類型的文件對應不同的MIME類型 // 重點突出
       // inline在瀏覽器中直接顯示，不提示用戶下載
       // attachment彈出對話框，提示用戶進行下載保存本地
       // 默認為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("壓縮完成.");
   }
   catch (IOException e) {
     e.printStackTrace();
   }
}
public static void main(String[] args) {
List<String> paths = new ArrayList<String>();
paths.add("d:/地理編碼系統詳細設計V1.0.docx");
paths.add("d:/中國聯通協同辦公項目.ppt");
ZipFiles(paths, "d:/zipfiles/info.zip");
}
} </pre>