I have images that are stored in the database as a BLOB. Now I can display them in my jsf pages using Richfaces mediaOutput tag.
Is it possible for images to have path like "/images/image.jpg" while images are stored in the database.
While searching for an answer I came around something like this:
@GET
@Path("/files/{filename}")
@Produces(MediaType.WILDCARD)
Best regards, Ilya Sidorovich
You could write a servlet picking up every request to /image/* or something that suits you.
And in your servlet you retrieve the correct data from your database via request parameters.
And you write out the data via
response.getOutputStream().write(content);
(content being the bytearray of you image)
Thank you roel and BalusC!
If anyone comes around this issue, here is what you can do.
package org.gicm.test;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.inject.Inject;
import java.io.BufferedOutputStream;
import java.io.BufferedInputStream;
import org.gicm.cms.CMSDao;
import org.gicm.model.UploadedImage;
@WebServlet("/images/*")
public class TestServlet extends HttpServlet {
@Inject
private CMSDao cms;
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String imageId = String.valueOf(request.getPathInfo().substring(1)); // Gets string that goes after "/images/".
UploadedImage image = cms.findImage(imageId); // Get Image from DB.
response.setHeader("Content-Type", getServletContext().getMimeType(image.getName()));
response.setHeader("Content-Disposition", "inline; filename=\"" + image.getName() + "\"");
BufferedInputStream input = null;
BufferedOutputStream output = null;
try {
input = new BufferedInputStream(image.getData()); // Creates buffered input stream.
output = new BufferedOutputStream(response.getOutputStream());
byte[] buffer = new byte[8192];
for (int length = 0; (length = input.read(buffer)) > 0;) {
output.write(buffer, 0, length);
}
} finally {
if (output != null) try { output.close(); } catch (IOException logOrIgnore) {}
if (input != null) try { input.close(); } catch (IOException logOrIgnore) {}
}
}
}