Sending and retrieving blob data using JSP
I need to upload images to a database through a web page (jsp)
and then display them.
Environment is tomcat + mysql.
Anyone know a good site that explains
how to work with blobs through JSP?
thanks for any help!
hello Sir,
I have to make a Image Library.
What I have done is I am just stroing the Image Path into the path
and retrieving the path from the database.
But now I am asked to Store the Image in the Database..
Could U Please tell me at the time of retrieving the Image
what exactly I have to do..
I am just 1 month new to JSP...(Practically)
Could U please write me the Code for Converting the BINARY Data into
InputStream ...
or what exactlt I have to do..
Please Guide me man..
Thanks In Advance...
With Regards
Eklavya
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How to store and retrieve blob data type in/from oracle database using JSP
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How can i save and retrieve blob data through forms and reports...
I have blob data type column and I want to save word, html, gif
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Hello Sir, I have a problem using the Write to SGL VI. When I am trying to write the captured data using DAQ board to a SGL file, I am unable to store the data as desired. There might be some problem with the VI which I am using to write the data to SGL file. I am not able to figure out the minor problem I am facing. I am attaching a zip file which contains five files.
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Did you try wiring a 2 as suggested?
(see also http://forums.ni.com/ni/board/message?board.id=BreakPoint&message.id=925 )
Message Edited by altenbach on 07-29-2005 11:35 PM
LabVIEW Champion . Do more with less code and in less time .
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HELP!!!!Display blob image using JSP
Hi,
I am trying to blob image using JSP but it did not display successfully.
Can someone help, please?
below are the codes snippet:
<td>
<img src="display_image.jsp?ID=<%=request.getParameter("ID") %>" width="115" border="0">
</td>
byte[] image_blob = details.getImageByteArray();
response.setContentType("image/jpeg");
//response.setContentType("image/gif");
//BEGINNING OF SECTION TO DISPLAY IMAGE
/*OutputStream fos = null;
fos = response.getOutputStream();
fos.write(image_blob, 0, image_blob.length);
fos.flush();
fos.close();*/
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fos1.write(image_blob);
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System.out.println(image_blob);
System.out.println("write image");Use Java Image or BufferedImage instead of obscure byte array for image data.
Here's an example code for a JSP document:
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String wid = request.getParameter("percent");
String cost = request.getParameter("suchi");
response.reset(); //IMPORTANT !
response.setContentType("image/jpeg");
// for testing purpose
if (wid == null) wid = "58";
if (cost == null) cost = "3400";
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OutputStream os = response.getOutputStream();
try{
ImageIO.write(rimg, "jpg", os);
catch(IOException e){
os.flush();
%>
<%!
public RenderedImage drawGraph(float barLength){
final int w = 800;
final int h = 18;
final int x = 0;
final int y = 0;
BufferedImage img = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = img.createGraphics();
Color c = new Color(Integer.parseInt("FF9999", 16));
g2.setColor(Color.yellow);
g2.fillRect(x, y, w, h);
g2.setColor(c);
g2.fillRect(x, y, (int)barLength, h);
g2.dispose();
return img;
%> -
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at^sjra=a:/NetDemo.jar
OK
NetDemo: Constructor
NetDemo: startApp
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// below is demo codes, can you help me where error is?
package example.netdemo;
import javax.microedition.midlet.*;
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import javax.microedition.io.*;
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import javax.microedition.io.DatagramConnection;
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System.out.println("NetDemo: Constructor");
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