我是菜鸟，jsp调试出现问题，请教大侠

HTTP Status 500 -

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: /li8/third.jsp(1,47) Invalid directive
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:512)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

root cause

org.apache.jasper.JasperException: /li8/third.jsp(1,47) Invalid directive
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:39)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:405)
org.apache.jaspe

最终代码如下: 一个倒三角一个椭圆
====================================

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

int width=260,height=260;

BufferedImage image=new BufferedImage(width,height,BufferedImage.TYPE_INT_RGB);
Graphics g=image.getGraphics();
g.setColor(Color.white);
g.fillRect(0,0,width,height);
Graphics2D g_2d=(Graphics2D)g;
Ellipse2D ellipse=new Ellipse2D.Double(40,50,100,40);
g_2d.setColor(Color.blue);
g_2d.draw(ellipse);
Polygon polygon=new Polygon();
polygon.addPoint(12,34);
polygon.addPoint(51,134);
polygon.addPoint(102,34);
g_2d.drawPolygon(polygon);
g_2d.dispose();