Use JSP to directly draw pictures and output to IE

JS The following code successfully tested, directly copied into the JSP that can run

<%@ page import= "java.awt.*"%>
<%@ page import= "java.awt.image.*"%>
<%@ page import= "com.sun.image.codec.jpeg.*"%>
<%@ page import= "java.util.*"%>


<%
Test by Liboy

int width=400;
int height= 400;

BufferedImage image = new BufferedImage (width, height, bufferedimage.type_int_rgb);

Graphics g = image.getgraphics ();
Graphics2D g2d = Image.creategraphics ();


G.setcolor (Color.White);
G.fillrect (0, 0, width, height);
G.setcolor (Color.Black);
G.drawrect (0,0,width-1,height-1);
Create Random Polygon
Polygon Poly = new Polygon ();
Random Random = new Random ();
for (int i=0; i<5; i++) {
Poly.addpoint (Random.nextint (width), random.nextint (height));
}
Fill Polygon
G.setcolor (Color.cyan);
G.fillpolygon (poly);
Dispose context
G.dispose ();


Response.reset ();
Response.setcontenttype ("Image/jpeg");

Servletoutputstream SOS = Response.getoutputstream ();
JPEGImageEncoder encoder = Jpegcodec.createjpegencoder (SOS);
Encoder.encode (image);

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