SpringBoot+zxing批量生成二维码_南国

这个没啥好说的俩类就完事,随便写写,做个记录吧

直接上代码,三步完成

第一步:引Maven的jar包

	<dependency>
			<groupId>com.google.zxing</groupId>
			<artifactId>javase</artifactId>
			<version>3.3.1</version>
	</dependency>

第二步:添加工具类

package com.hnyfkj.agriculturalpark.biz.code;

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.File;
import java.io.OutputStream;
import java.util.Hashtable;

import javax.imageio.ImageIO;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.DecodeHintType;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.Result;
import com.google.zxing.client.j2se.BufferedImageLuminanceSource;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.common.HybridBinarizer;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;

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 = 1000;
	// 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 {
		@SuppressWarnings("rawtypes")
		Hashtable<EncodeHintType, Comparable> hints = new Hashtable<EncodeHintType, Comparable>();
		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);
		if (!file.exists()) {
			System.err.println("" + imgPath + "   该文件不存在！");
			return;
		}
		Image src = ImageIO.read(new File(imgPath));
		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));
		ImageIO.write(image, FORMAT_NAME, new File(destPath));
	}

	public static BufferedImage encode(String content, String imgPath, boolean needCompress) throws Exception {
		BufferedImage image = QRCodeUtil.createImage(content, imgPath, needCompress);
		return image;
	}

	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 encode(String content, String imgPath, String destPath) throws Exception {
		QRCodeUtil.encode(content, imgPath, destPath, false);
	}
	// 被注释的方法
	/*
	 * public static void encode(String content, String destPath, boolean
	 * needCompress) throws Exception { QRCodeUtil.encode(content, null,
	 * destPath, needCompress); }
	 */

	public static void encode(String content, String destPath) throws Exception {
		QRCodeUtil.encode(content, null, destPath, false);
	}

	public static void encode(String content, String imgPath, OutputStream output, boolean needCompress)
			throws Exception {
		BufferedImage image = QRCodeUtil.createImage(content, imgPath, needCompress);
		ImageIO.write(image, FORMAT_NAME, output);
	}

	public static void encode(String content, OutputStream output) throws Exception {
		QRCodeUtil.encode(content, null, output, false);
	}

	public static String decode(File file) throws Exception {
		BufferedImage image;
		image = ImageIO.read(file);
		if (image == null) {
			return null;
		}
		BufferedImageLuminanceSource source = new BufferedImageLuminanceSource(image);
		BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
		Result result;
		Hashtable<DecodeHintType, String> hints = new Hashtable<DecodeHintType, String>();
		hints.put(DecodeHintType.CHARACTER_SET, CHARSET);
		result = new MultiFormatReader().decode(bitmap, hints);
		String resultStr = result.getText();
		return resultStr;
	}

	public static String decode(String path) throws Exception {
		return QRCodeUtil.decode(new File(path));
	}
}

第三步:引用工具类中的生成方法

package com.hnyfkj.agriculturalpark.biz.code.controller;

import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

import javax.imageio.ImageIO;
import javax.servlet.http.HttpServletResponse;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import com.hnyfkj.agriculturalpark.biz.assetsinfo.service.AssetsInfoService;
import com.hnyfkj.agriculturalpark.biz.code.QRCodeUtil;
import com.hnyfkj.agriculturalpark.biz.tracesourcelist.entity.TracesourceListEntity;
import com.hnyfkj.agriculturalpark.biz.tracesourcelist.service.TracesourceListService;

import io.swagger.annotations.Api;

@RestController
@RequestMapping("/down")
@Api(tags = { "资产信息列表导出" })
public class ErWeiMazipController {

	@Autowired
	private TracesourceListService tracesourceListService;

	/**
	 * data为链接，用 , 分割
	 * 
	 * @param response
	 * @param data
	 * @throws Exception
	 */
	@RequestMapping("/downloadAllQr")
	public void download(HttpServletResponse response, String traceSourceBatch) throws Exception {
		ZipOutputStream zos = null;
		String downloadFilename = "追溯码";
		// 转换中文否则可能会产生乱码
		downloadFilename = URLEncoder.encode(downloadFilename, "UTF-8");
		// 指明response的返回对象是文件流
		response.setContentType("application/octet-stream");
		// 设置在下载框默认显示的文件名
		response.setHeader("Content-Disposition", "attachment;filename=" + downloadFilename + ".zip");
		String url = "http://xxxx";
		// 根据溯源码批次查找
		List<TracesourceListEntity> tracesourceListEntity = tracesourceListService.findListByTrace(traceSourceBatch);
		// 组装Url
		zos = new ZipOutputStream(response.getOutputStream());
		// 循环遍历组装
		for (TracesourceListEntity tracesourceList : tracesourceListEntity) {
			String uu = url + "?product_batch=" + tracesourceList.getProductBatch() + "&trace_source_id="
					+ tracesourceList.getTraceSourceId();
			zos.putNextEntry(new ZipEntry(tracesourceList.getTraceSourceId() + ".png"));
			ImageIO.write(QRCodeUtil.encode(uu, "D:/logo.png", true), "jpg", zos);
		}
		zos.flush();
		zos.close();
	}

}

完事了,自己测吧,具体扫码出现的数据根据自己业务来

简单的拼接成url能扫出来就完事了

前人种树后人乘凉,你们慢慢乘凉哈