Adding image to a zip file
Hi all,
I am trying to work out a servlet that creates an on-the-fly zip file. I am trying to add an image in this zip file and then I want to prompt user to download the created zip file. It is creating the zip file -it prompts the user and downloads the zip file... but when I open the downloaded zip file -the image is not found to be added in it. Please help, here is the code:
package servlets;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.zip.*;
import java.net.*;
import java.util.*;
public class CreateZipFile extends HttpServlet {
byte b[] = new byte[300000];
ByteArrayOutputStream bout = new ByteArrayOutputStream();
ZipOutputStream zout = null;
ServletOutputStream out = null;
ServletContext servletContext = null;
HttpServletResponse res=null;
public void doGet (HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException
this.res=res;
out=res.getOutputStream();
servletContext=getServletContext();
File f= new File(getServletContext().getRealPath(req.getContextPath()));
String fs = System.getProperty("file.separator");
addToZip_Image (f.getParentFile() + fs + ("images/thermorack.jpg"));
System.out.println("ready");
String zip = bout.toString();
res.setContentType("application/zip");
res.setHeader("Content-Disposition", "inline; filename=output_dd.zip;");
System.out.println("finished");
out.println(zip);
out.flush();
public void addToZip_Image(String img) throws ServletException, IOException
System.out.println("image=" + img);
try {
FileInputStream input = new FileInputStream(img);
zout = new ZipOutputStream(new FileOutputStream(img));
zout.putNextEntry(new ZipEntry("image.jpg"));
int len;
while ((len = input.read(b)) > 0) {
zout.write(b, 0, len);
zout.closeEntry();
zout.close();
input.close();
System.out.println("closed");
} catch (Exception e) {
System.out.println("Exception occurred");
res.setContentType("text/html");
out.println("<html><head><title>Error</title></head>");
out.println("<body><b>");
out.println("An error has occured while processing "
+ "<br>");
out.println("Here is the exception: <br>" + e + "<br>");
e.printStackTrace(new PrintWriter(out));
out.println("</body>");
out.println("</html>");
}
You would need to purchase Stuffit Standard:
http://my.smithmicro.com/mac/stuffit/index.html
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