怎样用jsp画图

[wzs_wzs123]

怎样用jsp画图

[wzs_wzs123]

这里没人吗

[scarab]

用servlet画图

需要吗？

[epowerlab]

什么意思啊
你是指想在页面里画图是不是？
装载applet不就(对applet不懂)

[jacob1]

是数据统计图的意思么？

[scarab]

用servlet是可以的。我这有代码

[wzs_wzs123]

可以发给我一份吗，我的邮箱是[e-mail]

[lvhen]

画图用applet呀

[scarab]

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import com.sun.image.codec.jpeg.*;
import java.awt.image.*;
import java.awt.*;
public class JPEGServlet extends HttpServlet {
//Process the HTTP Get request
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("image/jpeg");
ServletOutputStream out = response.getOutputStream();
BufferedImage image = new BufferedImage(100,100, BufferedImage.TYPE_INT_RGB);
Graphics g = image.getGraphics();
g.setColor(Color.green);
g.fillRect(0, 0, 100, 100);
g.setColor(Color.red);
g.drawOval(0, 0, 100,100);
JPEGImageEncoder encoder =JPEGCodec.createJPEGEncoder(out);
encoder.encode(image);
out.close();
}
//Process the HTTP Post request
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request,response);
}
//Get Servlet information
public String getServletInfo() {
return "JPEGServlet Information";
}
}