方法一、使用Graphics
import java.awt.*;
import java.awt.image.*;
import javax.imageio.*;
import java.io.*;
public static void main(String[] args) {
int imageWidth = 128;//图片的宽度
int imageHeight = 64;//图片的高度
BufferedImage image = new BufferedImage(imageWidth, imageHeight, BufferedImage.TYPE_INT_RGB);
Graphics graphics = image.getGraphics();
try
{
Font font=new Font("新宋体",Font.PLAIN,12);
graphics.setFont(font);
graphics.fillRect(0, 0, imageWidth, imageHeight);
graphics.setColor(new Color(0,0,0));//设置黑色字体,同样可以graphics.setColor(Color.black);
graphics.drawString("产品：深圳雅辉呼叫器", 0, 10);
graphics.drawString("网址:www.szsyhaf.com", 0, 36);
ImageIO.write(image, "PNG", new File("D:\\abc.png"));//生成图片方法一
//ImageIO,可以生成不同格式的图片，比如JPG,PNG,GIF.....
}
catch(Exception ex)
{
ex.printStackTrace();
}
//生成图片方法二开始,只知道生成jpg格式的图片,这个方法其他格式的还是不知道怎么弄。
/*try {
FileOutputStream fos = new FileOutputStream("D:\\abc.jpg");
BufferedOutputStream bos = new BufferedOutputStream(fos);
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(bos);
encoder.encode(image);
bos.close();
} catch (Exception e) {
e.printStackTrace();
}*/
//生成图片方法二结束
graphics.dispose();//释放资源
}
方法二：Graphics2D方法
import java.io.*;
import java.awt.image.*;
import java.awt.*;
public static void main(String[] args) {
try
{
int width = 128;
int height = 64;
// 创建BufferedImage对象
Font font=new Font("宋体",Font.PLAIN,16);
BufferedImage image = new BufferedImage(width, height,BufferedImage.TYPE_INT_RGB);
// 获取Graphics2D
Graphics2D g2d = image.createGraphics();
// 画图
g2d.setBackground(new Color(255,255,255));
g2d.setPaint(new Color(0,0,0));
g2d.clearRect(0, 0, width, height);
g2d.drawString("名称：娃哈哈纯净水",0,10);
g2d.drawString("产地：浙江杭州",0,26);
g2d.drawString("品牌：娃娃哈哈",0,42);
g2d.drawString("单价：9876543210",0,58);
g2d.setFont(font);
//释放对象
g2d.dispose();
// 保存文件
ImageIO.write(image, "png", new File("D:/test.png"));
}
catch(Exception ex)
{
ex.printStackTrace();
}
}