package xxy.image;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
 
import javax.imageio.ImageIO;
/**
 * @author 许湘扬 2017-2-22
 * @邮箱 547139255@qq.com
 * @说明 生成验证码 Image、ImageIO、BufferedImage、Icon、ImageIcon
 */
public class TestImage 
{
 public static void main(String[] args) throws FileNotFoundException, IOException 
 {
 //1、得到图片缓冲区
 BufferedImage bi=new BufferedImage(70, 35, BufferedImage.TYPE_INT_BGR);
 //2、得到它的绘制环境（这张图片的笔）
 Graphics2D g2=(Graphics2D)bi.getGraphics();
 
 //其实就是设置背景色
 g2.setColor(Color.WHITE);//设置颜色
 g2.fillRect(0, 0, 70, 35);//填冲进一个矩形
 
 //给图片加边框
 g2.setColor(Color.RED);
 g2.drawRect(0, 0, 70-1, 35-1);
 
 //书写文字
 g2.setFont(new Font("宋体", Font.ITALIC, 25));//设置字体
 g2.setColor(Color.BLACK); //设置颜色
 g2.drawString("hello", 5, 29);//向图片中写字符串
 
 //b保存图片
 ImageIO.write(bi,"JPEG",new FileOutputStream("/Users/XXY/Desktop/test.jpg"));
 
 }
}