4dkankan-parent/4dkankan-common/src/main/java/com/fdkankan/common/util/LogoConfig.java

package com.fdkankan.common.util;

import org.springframework.core.io.ClassPathResource;

import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.geom.RoundRectangle2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

public class LogoConfig {
	/**
     * 设置 logo  
     * @param matrixImage 源二维码图片 
     * @return 返回带有logo的二维码图片 
     * @throws IOException 
     * @author Administrator sangwenhao 
     */  
     public BufferedImage LogoMatrix(BufferedImage matrixImage, String logoPath) throws IOException{
         /** 
          * 读取二维码图片，并构建绘图对象 
          */  
         Graphics2D g2 = matrixImage.createGraphics();  
           
         int matrixWidth = matrixImage.getWidth();  
         int matrixHeigh = matrixImage.getHeight();
         /**
          * 读取Logo图片
          */
         if(logoPath == null){
//             logoPath = this.getClass().getResource("/static/img/logo.png").getPath();
             ClassPathResource classPathResource = new ClassPathResource("static/img/logo.jpg");
             logoPath  =classPathResource.getURL().getPath();
         }
         BufferedImage logo = ImageIO.read(new File(logoPath));

         //开始绘制图片  
         g2.drawImage(logo,matrixWidth/5*2,matrixHeigh/5*2, matrixWidth/5, matrixHeigh/5, null);//绘制       
         BasicStroke stroke = new BasicStroke(5,BasicStroke.CAP_ROUND,BasicStroke.JOIN_ROUND);   
         g2.setStroke(stroke);// 设置笔画对象  
         //指定弧度的圆角矩形  
         RoundRectangle2D.Float round = new RoundRectangle2D.Float(matrixWidth/5*2, matrixHeigh/5*2, matrixWidth/5, matrixHeigh/5,20,20);  
         g2.setColor(Color.white);  
         g2.draw(round);// 绘制圆弧矩形  
           
         //设置logo 有一道灰色边框  
         BasicStroke stroke2 = new BasicStroke(1,BasicStroke.CAP_ROUND,BasicStroke.JOIN_ROUND);   
         g2.setStroke(stroke2);// 设置笔画对象  
         RoundRectangle2D.Float round2 = new RoundRectangle2D.Float(matrixWidth/5*2+2, matrixHeigh/5*2+2, matrixWidth/5-4, matrixHeigh/5-4,20,20);  
         g2.setColor(new Color(128,128,128));  
         g2.draw(round2);// 绘制圆弧矩形  
           
         g2.dispose();  
         matrixImage.flush() ;  
         return matrixImage ;  
     }

//    public static void main(String[] args) {
//        LogoConfig config = new LogoConfig()
//        this.getClass().getResource("/static/img/logo.png").getPath();
//    }
}