package com;import javax.imageio.ImageIO;import java.awt.*;import java.awt.image.BufferedImage;import java.io.File;import java.io.IOException;import java.util.Random;//验证码public class Imageyan {    public static void main(String[] args) throws IOException {        int id = 4;        int w = id*50;        int h = 80;        BufferedImage buf = new BufferedImage(w,h,1);        Graphics g = buf.getGraphics();        g.setColor(Color.WHITE);        g.fillRect(0,0,w,h);        Random ran = new Random();        //设置字        Font font = new Font("宋体",Font.PLAIN,40);        g.setFont(font);        for(int i = 0;i < id;i++) {            Color color = new Color(ran.nextInt(255),ran.nextInt(255),ran.nextInt(255),255);            g.setColor(color);            String chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";            String str = "";            str = chars.charAt(ran.nextInt(chars.length()))+"";            int x = 20 + i * 45;            int y = 50;            g.drawString(str, x, y);        }        //添加干扰文字        for(int i = 0;i < id;i++) {            Color color = new Color(ran.nextInt(255),ran.nextInt(255),ran.nextInt(255),100);            g.setColor(color);            String chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";            String str = "";            str = chars.charAt(ran.nextInt(chars.length()))+"";            g.drawString(str, ran.nextInt(w),ran.nextInt(h));        }        //添加线条        for (int a = 0; a < 30; a++) {            Color color = new Color(ran.nextInt(255),ran.nextInt(255),ran.nextInt(255),ran.nextInt(255));            g.setColor(color);            g.drawLine(ran.nextInt(w),ran.nextInt(w),ran.nextInt(w),ran.nextInt(w));        }        //添加弧线        for (int a = 0; a < 30; a++) {            Color color = new Color(ran.nextInt(255),ran.nextInt(255),ran.nextInt(255),ran.nextInt(255));            g.setColor(color);            g.drawArc(ran.nextInt(w),ran.nextInt(w),ran.nextInt(w),ran.nextInt(w),ran.nextInt(360),ran.nextInt(360));        }        g.dispose();        ImageIO.write(buf,"jpg",new File("d:/img/five.jpg"));    }}