Hi
I have a servlet which reads image data from a database and displays the image
on the clients browser.
Now in order for this to happen I am having to create the image as as file on my
server and then have a
url which refers to the image file on the server to display it. Is there any way
I do the same process but without creating an
actual file on the server (displaying the image dynamically). My code is as
follows:
try {
st = myConn.createStatement();
/*
** set the size of the data to bring back
*/
int maxsize = 5*1024*1024;
st.executeUpdate("set textsize " + maxsize);
rs = st.executeQuery(_sql);
if (rs == null) {
log("rs is null");
} else {
log("rs is not null");
}
log("rs " + rs);
int _rows = 0;
while (rs.next())
{
_rows++;
InputStream in = rs.getBinaryStream(1);
OutputStream out = new FileOutputStream
("C:\displayaimages\myimage.jpg");
byte[] buffer = new byte[4096];
int len;
while ((len = in.read(buffer)) > 0 )
{
out.write(buffer, 0, len);
}
out.close();
log("Image displayed");
}
/*
** Create a html form dynamically with all the parameters which will post to the
change.stm page
*/
String page = "<html><head><link type=\"text/css\" href=\"style/wlbp_main.css\"
rel=stylesheet><title>" + _desc
+ "</title></Head><body>" + _desc ;
if (_rows > 0) {
page += "<img id=pic
src='http://140.108.35.198/EmployeeImages/" + _file + "'";
} else {
page += "<h2> No Imaged Retrieved </h2>";
}
resp.setContentType("text/html");
PrintWriter out2 = new PrintWriter(resp.getOutputStream());
page += "></body></html>";
out2.println(page);
out2.close();
GetConnectionCache.releaseConnection(myConn,_jagCache);
log("Cache released ");
}
thanks in advance
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