jsp 驗證圖片
CODE 自己看註解囉，揪咪 <%@page import="java.io.OutputStream"%> <%@ page pageEncoding = "utf-8" contentType="image/jpeg"%> <%@page import="java.awt.Font"%> <%@page import="javax.imageio.ImageIO"%> <%@page import="java.util.Random"%> <%@page import="java.awt.Color"%> <%@page import="java.awt.Graphics"%> <%@page import="java.awt.image.BufferedImage"%> <% //設定寬度 // final int WIDTH = 123; final int WIDTH = 65; //設定高度 final int HEIGHT = 20; //設定亂數長度 final int LENGTH = 4; //亂數內容-數字版 char[] ch = "0123456789".toCharArray(); //亂數內容-注音版 // char[] ch = "ㄅㄆㄇㄈㄉㄊㄋㄌㄍㄎㄏㄐㄑㄒㄓㄔㄕㄖ一ㄨㄩㄚㄛㄜㄝㄞㄟㄠㄡㄢㄣㄤㄥㄦ".toCharArray(); //亂數內容-五十音版 // char[] ch = "あかさたなはまやらわいきしちにひみりうくすつぬふむゆるんえけせてねへめれおこそとのほもよろを".toCharArray(); //建立圖片 BufferedImage bi = new BufferedImage(WIDTH, HEIGHT, BufferedImage.TYPE_INT_RGB); Graphics g = bi.create