Java 利用Graphics2D在图片上画出竖排文字与横排文字

╰+攻爆jí腚メ 2022-06-16 07:07 806阅读 0赞

package com;  
  
  
import java.awt.BasicStroke;  
import java.awt.Color;  
import java.awt.Font;  
import java.awt.Graphics2D;  
import java.awt.image.BufferedImage;  
import java.io.File;  
import java.util.HashMap;  
import java.util.Random;  
  
  
import javax.imageio.ImageIO;  
  
  
import com.google.zxing.BarcodeFormat;  
import com.google.zxing.EncodeHintType;  
import com.google.zxing.client.j2se.MatrixToImageWriter;  
import com.google.zxing.common.BitMatrix;  
  
  
public class TestQrCode \{  
  
  
public static void main(String\[\] args) \{  
String path = TestQrCode.createQrcode("gsdw—2017");  
File f = new File(path);  
new TestQrCode().addtext\_QRCode(f,"");  
  
\}  
  
  
public void addtext\_QRCode(File qrPic, String test) \{  
try \{  
if (!qrPic.isFile()) \{  
System.out.print("file not find !");  
System.exit(0);  
\}  
  
  
/\*\*  
\* 读取二维码图片，并构建绘图对象  
\*/  
BufferedImage image = ImageIO.read(qrPic);  
Graphics2D g = image.createGraphics();  
//设置字体颜色  
g.setColor(Color.BLACK);  
//设置字体为系统字体  
g.setFont(g.getFont());  
//画竖排文字  
int x=20,y=50;  
String str = "激光与光纤通讯演示仪";  
addText\_ShuPaiWenzi(x,y,str,g);  
int k=50,j=270;  
addText\_hengpaiwenzi(k,j,str,g);  
g.dispose();  
ImageIO.write(image, "jpeg", new File("F:\\\\qrcode\\\\"+"133.jpg"));  
\} catch (Exception e) \{  
e.printStackTrace();  
\}finally\{  
if(qrPic!=null)\{  
qrPic.delete();  
\}  
\}  
\}  
  
/\*\*  
\* 横排文字  
\* @param x  
\* @param y  
\* @param str  
\* @param g  
\*/  
public void addText\_hengpaiwenzi(int x,int y,String str,Graphics2D g)\{  
g.drawString(str, x, y);  
  
\}  
  
  
public void addText\_ShuPaiWenzi(int x,int y,String str,Graphics2D g)\{  
  
  
int strlength = str.length();  
//获取字体宽度  
int t = g.getFontMetrics().stringWidth("str");  
//竖排文字  
for(int i=0;i<strlength;i++)\{  
  
g.drawString(String.valueOf(str.charAt(i)), x, y);  
y +=t;  
\}  
\}  
  
  
\}