Created
April 20, 2018 01:57
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an example setting content type on download
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package images; | |
import java.io.FileInputStream; | |
import java.io.IOException; | |
import javax.servlet.ServletException; | |
import javax.servlet.ServletOutputStream; | |
import javax.servlet.annotation.WebServlet; | |
import javax.servlet.http.HttpServlet; | |
import javax.servlet.http.HttpServletRequest; | |
import javax.servlet.http.HttpServletResponse; | |
@WebServlet("/image") | |
public class ImageServlet extends HttpServlet { | |
@Override | |
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { | |
String image = req.getParameter("name"); | |
resp.setContentType("image/jpg"); | |
byte[] buffer = new byte[8192]; | |
// NEVER DO THIS!!!!!! (UNLESS YOU ARE A TRAINED PROFESSIONAL) | |
FileInputStream fileInputStream = new FileInputStream("/tmp/" + image); | |
ServletOutputStream outputStream = resp.getOutputStream(); | |
int read = fileInputStream.read(buffer,0,8192); | |
while (read != -1) { | |
outputStream.write(buffer,0,read); | |
read = fileInputStream.read(buffer); | |
} | |
fileInputStream.close(); | |
} | |
} |
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