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| 5c5945 | 1 | package com.hx.util; |
| E | 2 | |
| 3 | import java.awt.*; | |
| 4 | import java.awt.image.BufferedImage; | |
| 5 | import java.io.File; | |
| 6 | import java.io.IOException; | |
| 7 | import java.text.SimpleDateFormat; | |
| 8 | import java.util.*; | |
| 9 | import java.util.List; | |
| 10 | ||
| 11 | import javax.imageio.ImageIO; | |
| 12 | ||
| 13 | import com.google.zxing.*; | |
| 14 | ||
| 15 | import com.google.zxing.client.j2se.BufferedImageLuminanceSource; | |
| 16 | import com.google.zxing.common.BitMatrix; | |
| 17 | import com.google.zxing.common.HybridBinarizer; | |
| 18 | import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel; | |
| 19 | ||
| 20 | public class QRCodeUtil { | |
| 21 | ||
| 22 | // 二维码颜色==黑色 | |
| 23 | private static final int BLACK = 0xFF000000; | |
| 24 | // 二维码颜色==白色 | |
| 25 | private static final int WHITE = 0xFFFFFFFF; | |
| 26 | // 二维码图片格式==jpg和png两种 | |
| 27 | private static final List<String> IMAGE_TYPE = new ArrayList<>(); | |
| 28 | ||
| 29 | static { | |
| 30 | IMAGE_TYPE.add("jpg"); | |
| 31 | IMAGE_TYPE.add("png"); | |
| 32 | } | |
| 33 | ||
| 34 | /** | |
| 35 | * zxing方式生成二维码 | |
| 36 | * 注意： | |
| 37 | * 1,文本生成二维码的方法独立出来,返回image流的形式,可以输出到页面 | |
| 38 | * 2,设置容错率为最高,一般容错率越高,图片越不清晰, 但是只有将容错率设置高一点才能兼容logo图片 | |
| 39 | * 3,logo图片默认占二维码图片的20%,设置太大会导致无法解析 | |
| 40 | * | |
| 41 | * @param content 二维码包含的内容，文本或网址 | |
| 42 | * @param path 生成的二维码图片存放位置 | |
| 43 | * @param size 生成的二维码图片尺寸 可以自定义或者默认（250） | |
| 44 | * @param logoPath logo的存放位置 | |
| 45 | * @param autoDateFolder 在存放链接上生成日期文件夹，格式是yyyyMM | |
| 46 | */ | |
| 47 | public static String QRCodeCreate(String content, String path, Integer size, String logoPath,Boolean autoDateFolder) { | |
| 48 | try { | |
| 49 | Date newDate = new Date(); | |
| 50 | if(autoDateFolder){ | |
| 51 | if(autoDateFolder){ | |
| 52 | if(path.endsWith("/")){ | |
| 53 | path = path+dateFormat(newDate,"yyyyMM")+"/"; | |
| 54 | }else{ | |
| 55 | path = path+"/"+dateFormat(newDate,"yyyyMM")+"/"; | |
| 56 | } | |
| 57 | } | |
| 58 | } | |
| 59 | ||
| 60 | path = path+newDate.getTime()+".jpg"; | |
| 61 | ||
| 62 | //图片类型 | |
| 63 | String imageType = "jpg"; | |
| 64 | //获取二维码流的形式，写入到目录文件中 | |
| 65 | BufferedImage image = getBufferedImage(content, size, logoPath); | |
| 66 | //获得随机数 | |
| 67 | Random random = new Random(); | |
| 68 | //生成二维码存放文件 | |
| 69 | File file = new File(path); | |
| 70 | if (!file.exists()) { | |
| 71 | file.mkdirs(); | |
| 72 | } | |
| 73 | ImageIO.write(image, imageType, file); | |
| 74 | } catch (IOException e) { | |
| 75 | e.printStackTrace(); | |
| 76 | } | |
| 77 | return path; | |
| 78 | } | |
| 79 | ||
| 80 | /** | |
| 81 | * 二维码流的形式，包含文本内容 | |
| 82 | * | |
| 83 | * @param content 二维码文本内容 | |
| 84 | * @param size 二维码尺寸 | |
| 85 | * @param logoPath logo的存放位置 | |
| 86 | * @return | |
| 87 | */ | |
| 88 | public static BufferedImage getBufferedImage(String content, Integer size, String logoPath) { | |
| 89 | if (size == null || size <= 0) { | |
| 90 | size = 250; | |
| 91 | } | |
| 92 | BufferedImage image = null; | |
| 93 | try { | |
| 94 | // 设置编码字符集 | |
| 95 | Map<EncodeHintType, Object> hints = new HashMap<>(); | |
| 96 | //设置编码 | |
| 97 | hints.put(EncodeHintType.CHARACTER_SET, "UTF-8"); | |
| 98 | //设置容错率最高 | |
| 99 | hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H); | |
| 100 | hints.put(EncodeHintType.MARGIN, 1); | |
| 101 | // 1、生成二维码 | |
| 102 | MultiFormatWriter multiFormatWriter = new MultiFormatWriter(); | |
| 103 | BitMatrix bitMatrix = multiFormatWriter.encode(content, BarcodeFormat.QR_CODE, size, size, hints); | |
| 104 | // 2、获取二维码宽高 | |
| 105 | int codeWidth = bitMatrix.getWidth(); | |
| 106 | int codeHeight = bitMatrix.getHeight(); | |
| 107 | // 3、将二维码放入缓冲流 | |
| 108 | image = new BufferedImage(codeWidth, codeHeight, BufferedImage.TYPE_INT_RGB); | |
| 109 | for (int i = 0; i < codeWidth; i++) { | |
| 110 | for (int j = 0; j < codeHeight; j++) { | |
| 111 | // 4、循环将二维码内容定入图片 | |
| 112 | image.setRGB(i, j, bitMatrix.get(i, j) ? BLACK : WHITE); | |
| 113 | } | |
| 114 | } | |
| 115 | //判断是否写入logo图片 | |
| 116 | if (logoPath != null && !"".equals(logoPath)) { | |
| 117 | File logoPic = new File(logoPath); | |
| 118 | if (logoPic.exists()) { | |
| 119 | Graphics2D g = image.createGraphics(); | |
| 120 | BufferedImage logo = ImageIO.read(logoPic); | |
| 121 | int widthLogo = logo.getWidth(null) > image.getWidth() * 2 / 10 ? (image.getWidth() * 2 / 10) : logo.getWidth(null); | |
| 122 | int heightLogo = logo.getHeight(null) > image.getHeight() * 2 / 10 ? (image.getHeight() * 2 / 10) : logo.getHeight(null); | |
| 123 | int x = (image.getWidth() - widthLogo) / 2; | |
| 124 | int y = (image.getHeight() - heightLogo) / 2; | |
| 125 | // 开始绘制图片 | |
| 126 | g.drawImage(logo, x, y, widthLogo, heightLogo, null); | |
| 127 | g.drawRoundRect(x, y, widthLogo, heightLogo, 15, 15); | |
| 128 | //边框宽度 | |
| 129 | g.setStroke(new BasicStroke(2)); | |
| 130 | //边框颜色 | |
| 131 | g.setColor(Color.WHITE); | |
| 132 | g.drawRect(x, y, widthLogo, heightLogo); | |
| 133 | g.dispose(); | |
| 134 | logo.flush(); | |
| 135 | image.flush(); | |
| 136 | } | |
| 137 | } | |
| 138 | } catch (WriterException e) { | |
| 139 | e.printStackTrace(); | |
| 140 | } catch (IOException e) { | |
| 141 | e.printStackTrace(); | |
| 142 | } | |
| 143 | return image; | |
| 144 | } | |
| 145 | ||
| 146 | /** | |
| 147 | * 给二维码图片添加Logo | |
| 148 | * | |
| 149 | * @param qrPic 二维码图片 | |
| 150 | * @param logoPic logo图片 | |
| 151 | * @param path 合成后的图片存储目录 | |
| 152 | */ | |
| 153 | public static boolean zxingCodeCreate(File qrPic, File logoPic, String path) { | |
| 154 | try { | |
| 155 | String imageType = path.substring(path.lastIndexOf(".") + 1).toLowerCase(); | |
| 156 | if (!IMAGE_TYPE.contains(imageType)) { | |
| 157 | return false; | |
| 158 | } | |
| 159 | ||
| 160 | if (!qrPic.isFile() && !logoPic.isFile()) { | |
| 161 | return false; | |
| 162 | } | |
| 163 | ||
| 164 | //读取二维码图片，并构建绘图对象 | |
| 165 | BufferedImage image = ImageIO.read(qrPic); | |
| 166 | Graphics2D g = image.createGraphics(); | |
| 167 | //读取Logo图片 | |
| 168 | BufferedImage logo = ImageIO.read(logoPic); | |
| 169 | //设置logo的大小,最多20%0 | |
| 170 | int widthLogo = logo.getWidth(null) > image.getWidth() * 2 / 10 ? (image.getWidth() * 2 / 10) : logo.getWidth(null); | |
| 171 | int heightLogo = logo.getHeight(null) > image.getHeight() * 2 / 10 ? (image.getHeight() * 2 / 10) : logo.getHeight(null); | |
| 172 | // 计算图片放置位置，默认在中间 | |
| 173 | int x = (image.getWidth() - widthLogo) / 2; | |
| 174 | int y = (image.getHeight() - heightLogo) / 2; | |
| 175 | // 开始绘制图片 | |
| 176 | g.drawImage(logo, x, y, widthLogo, heightLogo, null); | |
| 177 | g.drawRoundRect(x, y, widthLogo, heightLogo, 15, 15); | |
| 178 | //边框宽度 | |
| 179 | g.setStroke(new BasicStroke(2)); | |
| 180 | //边框颜色 | |
| 181 | g.setColor(Color.WHITE); | |
| 182 | g.drawRect(x, y, widthLogo, heightLogo); | |
| 183 | g.dispose(); | |
| 184 | logo.flush(); | |
| 185 | image.flush(); | |
| 186 | File newFile = new File(path); | |
| 187 | if (!newFile.exists()) { | |
| 188 | newFile.mkdirs(); | |
| 189 | } | |
| 190 | ImageIO.write(image, imageType, newFile); | |
| 191 | return true; | |
| 192 | } catch (Exception e) { | |
| 193 | e.printStackTrace(); | |
| 194 | return false; | |
| 195 | } | |
| 196 | } | |
| 197 | ||
| 198 | ||
| 199 | /** | |
| 200 | * 二维码的解析方法 | |
| 201 | * | |
| 202 | * @param path 二维码图片目录 | |
| 203 | * @return | |
| 204 | */ | |
| 205 | public static Result zxingCodeAnalyze(String path) { | |
| 206 | try { | |
| 207 | MultiFormatReader formatReader = new MultiFormatReader(); | |
| 208 | File file = new File(path); | |
| 209 | if (file.exists()) { | |
| 210 | BufferedImage image = ImageIO.read(file); | |
| 211 | LuminanceSource source = new BufferedImageLuminanceSource(image); | |
| 212 | Binarizer binarizer = new HybridBinarizer(source); | |
| 213 | BinaryBitmap binaryBitmap = new BinaryBitmap(binarizer); | |
| 214 | Map hints = new HashMap(); | |
| 215 | hints.put(EncodeHintType.CHARACTER_SET, "UTF-8"); | |
| 216 | Result result = formatReader.decode(binaryBitmap, hints); | |
| 217 | return result; | |
| 218 | } | |
| 219 | } catch (IOException e) { | |
| 220 | e.printStackTrace(); | |
| 221 | } catch (NotFoundException e) { | |
| 222 | e.printStackTrace(); | |
| 223 | } | |
| 224 | return null; | |
| 225 | } | |
| 226 | ||
| 227 | /** | |
| 228 | * | |
| 229 | * @param date 时间 | |
| 230 | * @param format 时间格式 | |
| 231 | * @return 返回的时间格式字符串 | |
| 232 | */ | |
| 233 | public static String dateFormat(Date date,String format) { | |
| 234 | SimpleDateFormat df = new SimpleDateFormat(format);//设置日期格式 | |
| 235 | return df.format(date); | |
| 236 | } | |
| 237 | ||
| 238 | } | |
