JAVA ZIP压缩打包下载 博客分类： java 技术 zipjava

引用

java自带的类库，实现zip压缩打包文件下载，注：不支持中文文件名(下面是我的完整下载servlet下载类代码，改下自己的包名即可使用)

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);
 }
} 

引用

下面是web.xml里面对下载zip servlet的配置

<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>

引用

下面是页面调用servlet

<form action="zipDownload.do" method="post">
			<input type="submit" value="下载"/>
		</form>