java 生成带logo 二维码 上传到七牛

pom文件添加：

<dependency>
 <groupId>com.google.zxing</groupId>
 <artifactId>core</artifactId>
 <version>3.1.0</version>
</dependency>
<dependency>
 <groupId>com.google.zxing</groupId>
 <artifactId>javase</artifactId>
 <version>3.3.0</version>
</dependency>

QRCodeUtil.java

package com.ruanyun.web.util.zxingQR;


import java.awt.BasicStroke;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Shape;
import java.awt.geom.RoundRectangle2D;
import java.awt.image.BufferedImage;
import java.io.*;
import java.net.URL;
import java.util.Hashtable;
import java.util.Random;

import javax.imageio.ImageIO;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
import com.ruanyun.web.model.UploadVo;
import com.ruanyun.web.util.QiNiuUploadUtils;
import com.ruanyun.web.util.QiniuUploadCommon;
import org.logicalcobwebs.cglib.asm.Constants;

/**
 * Created by IntelliJ IDEA.
 * User: MrDoubi
 * Date: 2019/6/26
 * Time: 9:38
 */
public class QRCodeUtil {
    private static final String CHARSET = "utf-8";
    private static final String FORMAT_NAME = "JPG";
    // 二维码尺寸
    private static final int QRCODE_SIZE = 300;
    // LOGO宽度
    private static final int WIDTH = 60;
    // LOGO高度
    private static final int HEIGHT = 60;

    private static BufferedImage createImage(String content, String imgPath,
                                             boolean needCompress) throws Exception {
        Hashtable hints = new Hashtable();
        hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
        hints.put(EncodeHintType.CHARACTER_SET, CHARSET);
        hints.put(EncodeHintType.MARGIN, 1);
        BitMatrix bitMatrix = new MultiFormatWriter().encode(content,
                BarcodeFormat.QR_CODE, QRCODE_SIZE, QRCODE_SIZE, hints);
        int width = bitMatrix.getWidth();
        int height = bitMatrix.getHeight();
        BufferedImage image = new BufferedImage(width, height,
                BufferedImage.TYPE_INT_RGB);
        for (int x = 0; x < width; x++) {
            for (int y = 0; y < height; y++) {
                image.setRGB(x, y, bitMatrix.get(x, y) ? 0xFF000000
                        : 0xFFFFFFFF);
            }
        }
        if (imgPath == null || "".equals(imgPath)) {
            return image;
        }
        // 插入图片
        QRCodeUtil.insertImage(image, imgPath, needCompress);
        return image;
    }
    private static void insertImage(BufferedImage source, String imgPath,
                                    boolean needCompress) throws Exception {
        File file = new File(imgPath);
        Image src = null;
        if (!file.exists()) {
            InputStream is = new URL(imgPath).openStream();
            src = ImageIO.read(is);
            System.err.println(""+imgPath+"   是一个网络路径");
        }else {
            src = ImageIO.read(file);
            System.err.println(""+imgPath+"   是一个本地路径");
        }
        int width = src.getWidth(null);
        int height = src.getHeight(null);
        if (needCompress) { // 压缩LOGO
            if (width > WIDTH) {
                width = WIDTH;
            }
            if (height > HEIGHT) {
                height = HEIGHT;
            }
            Image image = src.getScaledInstance(width, height,
                    Image.SCALE_SMOOTH);
            BufferedImage tag = new BufferedImage(width, height,
                    BufferedImage.TYPE_INT_RGB);
            Graphics g = tag.getGraphics();
            g.drawImage(image, 0, 0, null); // 绘制缩小后的图
            g.dispose();
            src = image;
        }
        // 插入LOGO
        Graphics2D graph = source.createGraphics();
        int x = (QRCODE_SIZE - width) / 2;
        int y = (QRCODE_SIZE - height) / 2;
        graph.drawImage(src, x, y, width, height, null);
        Shape shape = new RoundRectangle2D.Float(x, y, width, width, 6, 6);
        graph.setStroke(new BasicStroke(3f));
        graph.draw(shape);
        graph.dispose();
    }
    public static void encode(String content, String imgPath, String destPath,
                              boolean needCompress) throws Exception {
        BufferedImage image = QRCodeUtil.createImage(content, imgPath,
                needCompress);
        mkdirs(destPath);
        String file = new Random().nextInt(99999999)+".jpg";
        ImageIO.write(image, FORMAT_NAME, new File(destPath+"/"+file));
    }
    public static void mkdirs(String destPath) {
        File file =new File(destPath);
        //当文件夹不存在时，mkdirs会自动创建多层目录，区别于mkdir．(mkdir如果父目录不存在则会抛出异常)
        if (!file.exists() && !file.isDirectory()) {
            file.mkdirs();
        }
    }

    public static void main(String[] args)  {
        String text = "https://blog.youkuaiyun.com/qq_37490681";//二维码的数据
        String imgPath = "https://q1.qlogo.cn/g?b=qq&nk=1327466228&s=100";
        String url= QRCodeUtil.generateLogoWithQRCode(text,imgPath);
        System.out.println(QiNiuUploadUtils.bucket_video_url+url);
    }


    /**
     * 功能说明：生成带logo 的二维码并且上传
     * @author  MrDoubi 2019-06-26 10:27:34
     * @param text 二维码数据
     * @param imgPath 图片路径 支持本地和在线的
     * @return 图片路径
     */
    public static String generateLogoWithQRCode(String text,String imgPath){
        BufferedImage bufferedImage = null;
        try {
            bufferedImage = createImage(text, imgPath, true);
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            try {
                ImageIO.write(bufferedImage, "png", baos);
            } catch (IOException e) {
                e.printStackTrace();
            }
            //这个是七牛上传方法 封装返回值 
            UploadVo url = QiniuUploadCommon.uploadFile(baos.toByteArray(), ".png", QiNiuUploadUtils.bucket);
            if (url.getResult() == 1) {
                //实际返回图片的路径  不加七牛前缀的
                return url.getFilename();
            }
        } catch (Exception e) {
            e.printStackTrace();
            System.err.println("生成二维码失败！");
        }
        return null;
    }
}

附上 七牛上传方法

public  int uploadImg(byte[] file, String name,String param_bucket){
   try {
       Response res = uploadManager.put(file,name, getUpTokenImg(param_bucket));
   } catch (Exception e) {
      return Constants.FILE_FAIL;
   }
   return Constants.FILE_SUCCESS;
}