import java.awt.Color;import java.awt.Font;import java.awt.Graphics;import java.awt.image.BufferedImage;import java.io.File;import java.util.Calendar;import javax.imageio.ImageIO;import org.junit.Test;public class imgecreate{@Test  public void graphicsGeneration() {     try {      int imageWidth = 3507;// 圖片的寬度       int imageHeight = 2480;// 圖片的高度       BufferedImage image = new BufferedImage(imageWidth, imageHeight,           BufferedImage.TYPE_INT_RGB);       Graphics graphics = image.getGraphics();       graphics.setColor(Color.white);       graphics.fillRect(0, 0, imageWidth, imageHeight);       graphics.setColor(Color.black);       graphics.setFont(new Font("宋體", Font.PLAIN, 70));       String address="山東省飛史蒂夫肯德基首付款艱苦奮斗就勝多負少的飛電風扇";      //為控制字符串過長換行      graphics.drawString(address.substring(0,13), 985,1416);      graphics.drawString(address.substring(13), 985,1484);      Calendar now = Calendar.getInstance();       //證書有效期為3年，所以截止日減去1天      now.set(Calendar.DATE, now.get(Calendar.DATE)-1);      now.add(Calendar.YEAR, 3);//      BufferedImage small = ImageIO.read(new File("D://t.jpg"));//生成的圖片中插入另一張圖片      graphics.drawImage(small, 2524, 943, 385,385, null);      graphics.dispose();      createImage("D://test1.jpg", image);     }catch(Exception e) {      e.printStackTrace();    }  } private static void createImage(String fileLocation, BufferedImage image) {   try {     ImageIO.write(image, "jpeg" , new File(fileLocation));    image.flush();   } catch (Exception e) {     e.printStackTrace();   } }   public static void main(String[] args){ }