JAVA ZIP压缩打包下载
package com.kedacom.kdkk.controller.querymanager;import java.io.File;import java.io.FileInputStream;import java.io.IOException;import java.util.Date;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import java.util.zip.*;public class BatchDownload extends HttpServlet { public BatchDownload() { super(); } public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("APPLICATION/OCTET-STREAM"); response.setHeader("Content-Disposition","attachment; filename="+this.getZipFilename()); System.out.println("in BatchDownload................"); ZipOutputStream zos = new ZipOutputStream(response.getOutputStream()); File[] files = new File[2]; files[0]=new File("D:/OptiCM-POC/KDKK3Project/KDKK/images/1.jpg"); files[1]=new File("D:/OptiCM-POC/KDKK3Project/KDKK/images/2.jpg"); zipFile(files, "", zos); zos.flush(); zos.close(); } private void zipFile(File[] subs, String baseName, ZipOutputStream zos) throws IOException { for (int i=0;i<subs.length;i++) { File f=subs[i]; zos.putNextEntry(new ZipEntry(baseName + f.getName())); FileInputStream fis = new FileInputStream(f); byte[] buffer = new byte[1024]; int r = 0; while ((r = fis.read(buffer)) != -1) { zos.write(buffer, 0, r); } fis.close(); } } private String getZipFilename(){ Date date=new Date(); String s=date.getTime()+".zip"; return s; } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { this.doGet(request, response); }}
<servlet> <servlet-name>imgZipDownload</servlet-name> <servlet-class>com.kedacom.kdkk.controller.querymanager.BatchDownload</servlet-class> </servlet> <servlet-mapping> <servlet-name>imgZipDownload</servlet-name> <url-pattern>/zipDownload.do</url-pattern> </servlet-mapping>
<form action="zipDownload.do" method="post"><input type="submit" value="下载"/></form>
