📄 random.jsp
字号:
<%@page import="java.io.*,java.util.*,com.sun.image.codec.jpeg.*,java.awt.*,java.awt.image.*"%>
<html><head></head><body>
<table width="80" >
<tr><td>
<%
response.setContentType("image/jpeg");
ServletOutputStream o = response.getOutputStream();
BufferedImage image = new BufferedImage(80, 40, BufferedImage.TYPE_INT_RGB);
int[] rand = new int[4];
for (int i = 0; i < 4; i++) {
Random r = new Random();
rand[i] = r.nextInt(10) ;
}
Graphics g = image.getGraphics();
g.fillRect(0,0,80,30);
Font f=new Font("Arial Black",Font.BOLD,20);
g.setFont(f);
for (int i = 0; i < 4; i++) {
if(i==0)
g.setColor(Color.cyan);
else if(i==1)
g.setColor(Color.red);
else if(i==2)
g.setColor(Color.yellow);
else
g.setColor(Color.pink);
g.drawString(new Integer(rand[i]).toString(), i * 20, 40);
}
JPEGImageEncoder encoder=JPEGCodec.createJPEGEncoder(o);
encoder.encode(image);
o.close();
%>
</td></tr>
</table>
</body>
</html>
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