JAVA ZIP压缩打包下载

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Java代码

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

Java代码

<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

Java代码

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

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