Java Tutorial/JSP/Image Creation

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Generate JPEG image in jsp code

   <source lang="java">

<%@ page contentType="image/jpeg" import="java.io.*, java.awt.*, java.awt.image.*,com.sun.image.codec.jpeg.*" %> <% 

   try {
       BufferedImage image = new BufferedImage(200, 200, BufferedImage.TYPE_INT_RGB);
       Graphics2D g = image.createGraphics();
       g.drawLine(0, 0, 199, 199);
       JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(response.getOutputStream());
       encoder.encode(image);
   } catch (Exception e) {}

%></source>





Return an Image From JSP Page

index.html



   <source lang="java">

<HTML> 

   <HEAD>
       <TITLE>Creating Images on the Fly</TITLE>
   </HEAD>
   <BODY>

Creating Images on the Fly

       <IMG SRC="basic.jsp">
   </BODY>

</HTML></source>





Use passed in parameter to draw a JPEG image

index.html



   <source lang="java">

<HTML> 

   <HEAD>
   </HEAD>
   <BODY>

   </BODY>
       <SCRIPT>
           
       </SCRIPT>

</HTML></source>


Источник — «http://www.jexp.ru/index.php?title=Java_Tutorial/JSP/Image_Creation&oldid=4950»