Posted on 2009-10-22 14:30
lubaolin 阅读(704)
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java
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 net.sf.jazzlib.ZipEntry;
import net.sf.jazzlib.ZipOutputStream;
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("c:/zip/文件A.doc");
files[1]=new File("c:/zip/文件B.doc");
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);
}
}