c.jpeg.*;
/**
* @author Liao Xue Feng
*/
public class CreateImageServlet
extends HttpServlet
{
protected void doGet
(HttpServletRequest request,
HttpServletResponse response)
throws ServletException,
IOException
{
response.setContentType
("image/jpeg");
createImage(response.getOutputStream());
}
private void createImage(OutputStream out)
{
int width = 100;
int height = 100;
BufferedImage bi =
new BufferedImage(width, height,
BufferedImage.TYPE_INT_RGB);
Graphics2D g = bi.createGraphics();
// set background:
g.setBackground(Color.BLUE);
g.clearRect(0, 0, width, height);
// set fore color:
g.setColor(Color.RED);
// start draw:
g.drawLine(0, 0, 99, 199);
// end draw:
g.dispose();
bi.flush();
// encode:
JPEGImageEncoder encoder
= JPEGCodec.createJPEGEncoder(out);
JPEGEncodeParam param
= encoder.getDefaultJPEGEncodeParam(bi);
param.setQuality(1.0f, false);
encoder.setJPEGEncodeParam(param);
try {
encoder.encode(bi);
}
catch(IOException ioe) {
ioe.printStackTrace();
}
}
}
最后将这个Servlet编译，注册到web.xml中，映射路径为/CreateImage，写上一页 [1] [2] [3] [4] 下一页
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