From e86ed626de30e3e60ba5e1294b0d134546ac5b4d Mon Sep 17 00:00:00 2001
From: 无关风月 <443237572@qq.com>
Date: 星期二, 27 八月 2024 12:06:16 +0800
Subject: [PATCH] Merge branch 'master' of http://120.76.84.145:10101/gitblit/r/java/mx_charging_pile
---
ruoyi-service/ruoyi-chargingPile/src/main/java/com/ruoyi/chargingPile/util/QRCodeUtils.java | 267 +++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 267 insertions(+), 0 deletions(-)
diff --git a/ruoyi-service/ruoyi-chargingPile/src/main/java/com/ruoyi/chargingPile/util/QRCodeUtils.java b/ruoyi-service/ruoyi-chargingPile/src/main/java/com/ruoyi/chargingPile/util/QRCodeUtils.java
new file mode 100644
index 0000000..e13aa76
--- /dev/null
+++ b/ruoyi-service/ruoyi-chargingPile/src/main/java/com/ruoyi/chargingPile/util/QRCodeUtils.java
@@ -0,0 +1,267 @@
+package com.ruoyi.chargingPile.util;
+
+import com.google.zxing.*;
+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;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.imageio.ImageIO;
+import java.awt.*;
+import java.awt.geom.RoundRectangle2D;
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.OutputStream;
+import java.util.Hashtable;
+import java.util.Random;
+
+/**
+ * 二维码工具类
+ */
+public class QRCodeUtils {
+
+ private static Logger logger = LoggerFactory.getLogger(QRCodeUtils.class);
+
+ 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<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();
+ 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
+ QRCodeUtils.insertImage(image, imgPath, needCompress);
+ return image;
+ }
+
+ /**
+ * 插入LOGO
+ *
+ * @param source
+ * 二维码图片
+ * @param imgPath
+ * LOGO图片地址
+ * @param needCompress
+ * 是否压缩
+ * @throws Exception
+ */
+ private static void insertImage(BufferedImage source, String imgPath,
+ boolean needCompress) throws Exception {
+ File file = new File(imgPath);
+ if (!file.exists()) {
+ logger.debug(""+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();
+ }
+
+ /**
+ * 生成二维码(内嵌LOGO)
+ *
+ * @param content
+ * 内容
+ * @param imgPath
+ * LOGO地址
+ * @param destPath
+ * 存放目录
+ * @param needCompress
+ * 是否压缩LOGO
+ * @throws Exception
+ */
+ public static String encode(String content, String imgPath, String destPath,
+ boolean needCompress) throws Exception {
+ BufferedImage image = QRCodeUtils.createImage(content, imgPath,
+ needCompress);
+ mkdirs(destPath);
+ ImageIO.write(image, FORMAT_NAME, new File(destPath));
+ return 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)
+ * @date 2013-12-11 上午10:16:36
+ * @param destPath 存放目录
+ */
+ 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();
+ }
+ }
+
+ /**
+ * 生成二维码(内嵌LOGO)
+ *
+ * @param content
+ * 内容
+ * @param imgPath
+ * LOGO地址
+ * @param destPath
+ * 存储地址
+ * @throws Exception
+ */
+ public static void encode(String content, String imgPath, String destPath)
+ throws Exception {
+ QRCodeUtils.encode(content, imgPath, destPath, false);
+ }
+
+ /**
+ * 生成二维码
+ *
+ * @param content
+ * 内容
+ * @param destPath
+ * 存储地址
+ * @param needCompress
+ * 是否压缩LOGO
+ * @throws Exception
+ */
+ public static void encode(String content, String destPath,
+ boolean needCompress) throws Exception {
+ QRCodeUtils.encode(content, null, destPath, needCompress);
+ }
+
+ /**
+ * 生成二维码
+ *
+ * @param content
+ * 内容
+ * @param destPath
+ * 存储地址
+ * @throws Exception
+ */
+ public static void encode(String content, String destPath) throws Exception {
+ QRCodeUtils.encode(content, null, destPath, false);
+ }
+
+ /**
+ * 生成二维码(内嵌LOGO)
+ *
+ * @param content
+ * 内容
+ * @param imgPath
+ * LOGO地址
+ * @param output
+ * 输出流
+ * @param needCompress
+ * 是否压缩LOGO
+ * @throws Exception
+ */
+ public static void encode(String content, String imgPath,
+ OutputStream output, boolean needCompress) throws Exception {
+ BufferedImage image = QRCodeUtils.createImage(content, imgPath,
+ needCompress);
+ ImageIO.write(image, FORMAT_NAME, output);
+ }
+
+ /**
+ * 生成二维码
+ *
+ * @param content
+ * 内容
+ * @param output
+ * 输出流
+ * @throws Exception
+ */
+ public static void encode(String content, OutputStream output)
+ throws Exception {
+ QRCodeUtils.encode(content, null, output, false);
+ }
+
+ /**
+ * 解析二维码
+ *
+ * @param file
+ * 二维码图片
+ * @return
+ * @throws Exception
+ */
+ 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, Object> hints = new Hashtable<DecodeHintType, Object>();
+ hints.put(DecodeHintType.CHARACTER_SET, CHARSET);
+ result = new MultiFormatReader().decode(bitmap, hints);
+ String resultStr = result.getText();
+ return resultStr;
+ }
+
+ /**
+ * 解析二维码
+ *
+ * @param path
+ * 二维码图片地址
+ * @return
+ * @throws Exception
+ */
+ public static String decode(String path) throws Exception {
+ return QRCodeUtils.decode(new File(path));
+ }
+
+ public static void main(String[] args) throws Exception {
+ String text = "http://www.baidu.com"; //这里设置自定义网站url
+ String logoPath = "C:\\Users\\admin\\Desktop\\test\\test.jpg";
+ String destPath = "C:\\Users\\admin\\Desktop\\test\\";
+ logger.debug(QRCodeUtils.encode(text, logoPath, destPath, true));
+ }
+}
--
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