package imageCreate; import java.awt.Color; import java.awt.Font; import java.awt.Graphics; import java.awt.image.BufferedImage; import java.io.FileOutputStream; import java.util.Random; import javax.imageio.ImageIO; public class Image { public static void main(String[] args)throws Exception { Image i=new Image(); i.create(); } public void create() throws Exception { int []a = null; // 大小 int width = 60; int height = 30; // 声明一个图片类型rgb BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_BGR); // 获取画笔 Graphics g = bi.getGraphics(); // 背景色 g.setColor(Color.WHITE); // 画 g.fillRect(0, 0, width, height); // 字体 g.setFont(new Font("黑体", Font.BOLD, 18)); // 写一个字符到bi Random r = new Random(); for (int i = 0; i < 4; i++) { // 生成随机数 int code = r.nextInt(10);// 0---9之间 // 画笔随机色 g.setColor(new Color(r.nextInt(256), r.nextInt(256), r.nextInt(256))); // 写出字符 g.drawString("" + code, i * 15, 10 + r.nextInt(20)); } //干扰线 for(int i=0;i<12;i++){ g.setColor(new Color(r.nextInt(256), r.nextInt(256), r.nextInt(256))); //画线 g.drawLine(r.nextInt(60), r.nextInt(30), r.nextInt(60), r.nextInt(30));
} g.dispose();//图片生成 ImageIO.write(bi,"JPEG", new FileOutputStream("e:/a.jpg"));//设置路径为e:盘下的a.jpg } }