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Shailander Sharma
resize dynamic image in jsp
0 Answer(s)      4 years and 4 months ago
Posted in : JSP-Servlet


Sir,
I am saving the images in mysql database with Blob. An I am retrieving the images with this code:-
<%@ page import="java.sql.*" %>
<%@ page import="java.io.*" %>
<%@ page import="servlets.MySqlConnect" %>
<%
MySqlConnect sc = new MySqlConnect();
Connection con = sc.getConnection();
InputStream sImage;

ServletOutputStream o = response.getOutputStream();
ResultSet rs =null;
Blob image=null;
PreparedStatement psmnt =null;

try{
psmnt = con.prepareStatement("SELECT img FROM Test WHERE img_id = ?");

psmnt.setString(1, "ss");
rs = psmnt.executeQuery();
if (rs.next()) {
image = rs.getBlob(1);
} else {
response.setContentType("text/html");
out.println("<html><head><title>Display Blob Example</title></head>");
out.println("<body><h4><font color='red'>image not found for given id</font></h4></body></html>");
return;
}
response.setContentType("image/gif");
InputStream in = image.getBinaryStream();
int length = (int) image.length();
int bufferSize = 1024;
byte[] buffer = new byte[bufferSize];
while ((length = in.read(buffer)) != -1) {
o.write(buffer, 0, length);
}
in.close();
o.flush();
}
catch(Exception ex){
out.println("error :"+ex);
}

finally {
// close all the connections.
rs.close();
psmnt.close();
con.close();
}

%>

I am getting my image with this code but all I need that I want to resize that image automatically according to given dimension after retrieving on web page.
If you will help me, I will be very grateful to you.
Thanking You,

Shailander Sharma

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