<%-- Document : img Created on : 2020-4-12, 7:49:34 Author : Administrator --%> <%@page import="javax.imageio.ImageIO"%> <%@page import="java.awt.Font"%> <%@page import="java.awt.Color"%> <%@page import="java.awt.Graphics"%> <%@page import="java.awt.image.BufferedImage"%> <%-- 通过contentType属性指定响应数据是图片 --%> <%@page contentType="image/png" language="java" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title > JSP Page </ title > </ head > < body > <% // Create BufferedImage object BufferedImage image = new BufferedImage ( 340 , 160 , BufferedImage.TYPE_INT_RGB); // Get Graphics object Graphics g = image with Image object . getGraphics (); // Drawing with Graphics, the drawn image will appear in the image object g.fillRect ( 0 , 0 , 400 , 400 ); // Set the color: red g.setColor (new Color ( 255 , 0 , 0 )); // Draw an arc g.fillArc ( 20 , 20 , 100 , 100 , 30 , 120 ); // Set the color: green g.setColor ( new Color ( 0 , 255 , 0 )); // Draw an arc g.fillArc ( 20 , 20 , 100 , 100 , 150 , 120 ); // Set the color: blue g.setColor ( new Color ( 0 , 0 , 255 )); // Draw an arc g.fillArc ( 20 , 20 , 100 , 100 , 270 , 120 ); // Set the color : Black g.setColor ( new Color ( 0 , 0 , 0 )); g.setFont ( new Font ( " Arial Black " , Font.PLAIN, 16 )); // Draw three strings g.drawString ( " red: climb " , 200 , 60 ); g.drawString ( " green: swim " , 200 , 100 ); g.drawString ( " blue: jump " , 200 , 140 ); g.dispose (); // Response to output the image to the page ImageIO.write (image, " png " , response.getOutputStream ()); %> </ body > </ html >
