package com.matrix.component.tools;
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import com.google.zxing.BarcodeFormat;
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import com.google.zxing.EncodeHintType;
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import com.google.zxing.MultiFormatWriter;
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import com.google.zxing.common.BitMatrix;
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import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
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import com.matrix.core.tools.PropertiesUtil;
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import com.matrix.core.tools.StringUtils;
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import com.matrix.core.tools.UUIDUtil;
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import com.matrix.system.common.constance.AppConstance;
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import javax.imageio.ImageIO;
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import java.awt.*;
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import java.awt.geom.RoundRectangle2D;
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import java.awt.image.BufferedImage;
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import java.io.File;
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import java.io.OutputStream;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import java.util.Hashtable;
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public class CodeUtil {
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private static final String CHARSET = "utf-8";
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private static final String FORMAT_NAME = "JPG";
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// 二维码尺寸
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private static final int QRCODE_SIZE = 300;
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// LOGO宽度
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private static final int WIDTH = 60;
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// LOGO高度
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private static final int HEIGHT = 60;
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private static BufferedImage createImage(String content, String imgPath,
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boolean needCompress,String title) throws Exception {
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Hashtable<EncodeHintType, Object> hints = new Hashtable<EncodeHintType, Object>();
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hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
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hints.put(EncodeHintType.CHARACTER_SET, CHARSET);
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hints.put(EncodeHintType.MARGIN, 1);
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BitMatrix bitMatrix = new MultiFormatWriter().encode(content,
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BarcodeFormat.QR_CODE, QRCODE_SIZE, QRCODE_SIZE, hints);
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int width = bitMatrix.getWidth();
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int height = bitMatrix.getHeight();
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BufferedImage image = new BufferedImage(width, height,
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BufferedImage.TYPE_INT_RGB);
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for (int x = 0; x < width; x++) {
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for (int y = 0; y < height; y++) {
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image.setRGB(x, y, bitMatrix.get(x, y) ? 0xFF000000
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: 0xFFFFFFFF);
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}
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}
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if (StringUtils.isNotBlank(imgPath)) {
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// 插入图片
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CodeUtil.insertImage(image, imgPath, needCompress);
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}
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if(StringUtils.isNotBlank(title)){
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//插入标题
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// CodeUtil.insertTitle(image, title);
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}
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return image;
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}
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private static void insertTitle(BufferedImage source, String title) {
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BufferedImage image = new BufferedImage(300, 360,
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BufferedImage.TYPE_INT_RGB);
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for (int x = 0; x < 300; x++) {
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for (int y = 0; y < 360; y++) {
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image.setRGB(x, y, 0xFFFFFFFF);
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}
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}
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Graphics2D graph = image.createGraphics();
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graph.drawImage(source, 20, 60, 300, 300, null);
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Shape shape = new RoundRectangle2D.Float(20, 60, 300, 300, 6, 6);
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graph.setStroke(new BasicStroke(3f));
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graph.draw(shape);
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// 插入LOGO
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graph.setFont(new Font("黑体", Font.BOLD, 36));
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graph.setColor(Color.BLACK);
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graph.drawString(title, 10, 10);
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graph.dispose();
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}
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/**
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* 插入LOGO
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*
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* @param source
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* 二维码图片
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* @param imgPath
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* LOGO图片地址
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* @param needCompress
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* 是否压缩
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* @throws Exception
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*/
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private static void insertImage(BufferedImage source, String imgPath,
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boolean needCompress) throws Exception {
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File file = new File(imgPath);
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if (!file.exists()) {
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System.err.println(""+imgPath+" 该文件不存在！");
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return;
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}
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Image src = ImageIO.read(new File(imgPath));
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int width = src.getWidth(null);
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int height = src.getHeight(null);
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if (needCompress) { // 压缩LOGO
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if (width > WIDTH) {
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width = WIDTH;
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}
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if (height > HEIGHT) {
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height = HEIGHT;
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}
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Image image = src.getScaledInstance(width, height,
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Image.SCALE_SMOOTH);
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BufferedImage tag = new BufferedImage(width, height,
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BufferedImage.TYPE_INT_RGB);
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Graphics g = tag.getGraphics();
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g.drawImage(image, 0, 0, null); // 绘制缩小后的图
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g.dispose();
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src = image;
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}
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// 插入LOGO
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Graphics2D graph = source.createGraphics();
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int x = (QRCODE_SIZE - width) / 2;
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int y = (QRCODE_SIZE - height) / 2;
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graph.drawImage(src, x, y, width, height, null);
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Shape shape = new RoundRectangle2D.Float(x, y, width, width, 6, 6);
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graph.setStroke(new BasicStroke(3f));
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graph.draw(shape);
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graph.dispose();
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}
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/**
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* 生成二维码(内嵌LOGO)
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*
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* @param content
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* 内容
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* @param imgPath
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* LOGO地址
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* @param destPath
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* 存放目录
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* @param needCompress
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* 是否压缩LOGO
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* @throws Exception
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*/
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public static void encode(String content, String imgPath, String destPath,
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boolean needCompress) throws Exception {
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BufferedImage image = CodeUtil.createImage(content, imgPath,
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needCompress,null);
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mkdirs(destPath);//new Random().nextInt(99999999)
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String file = UUIDUtil.getRandomID()+".jpg";
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ImageIO.write(image, FORMAT_NAME, new File(destPath+"/"+file));
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}
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public static String encode(String content, String imgPath, boolean needCompress,
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String title) throws Exception {
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BufferedImage image = CodeUtil.createImage(content, imgPath,
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needCompress,title);
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// 图片保存目录路径
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String savePath = PropertiesUtil.getString(AppConstance.FILES_TORAGE_PATH);
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// 图片保存目录URL
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String saveUrl = PropertiesUtil.getString(AppConstance.NGINX_URL);
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// 以账号ID命名创建文件夹
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savePath+="qrCode" + File.separatorChar;
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saveUrl+="qrCode" + File.separatorChar;
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// 创建是日期文件夹
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SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
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String ymd = sdf.format(new Date());
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savePath+= ymd + File.separatorChar;
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saveUrl+=ymd + "/";
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mkdirs(savePath);//new Random().nextInt(99999999)
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String file = UUIDUtil.getRandomID()+".jpg";
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ImageIO.write(image, FORMAT_NAME, new File(savePath+"/"+file));
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return saveUrl+file;
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}
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/**
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* 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)
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* @author lanyuan
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* Email: mmm333zzz520@163.com
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* @date 2013-12-11 上午10:16:36
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* @param destPath 存放目录
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*/
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public static void mkdirs(String destPath) {
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File file =new File(destPath);
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//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)
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if (!file.exists() && !file.isDirectory()) {
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file.mkdirs();
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}
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}
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/**
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* 生成二维码(内嵌LOGO)
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*
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* @param content
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* 内容
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* @param imgPath
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* LOGO地址
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* @param destPath
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* 存储地址
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* @throws Exception
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*/
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public static void encode(String content, String imgPath, String destPath)
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throws Exception {
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CodeUtil.encode(content, imgPath, destPath, false);
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}
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/**
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* 生成二维码
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*
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* @param content
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* 内容
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* @param destPath
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* 存储地址
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* @param needCompress
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* 是否压缩LOGO
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* @throws Exception
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*/
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public static void encode(String content, String destPath,
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boolean needCompress) throws Exception {
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CodeUtil.encode(content, null, destPath, needCompress);
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}
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/**
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* 生成二维码
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*
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* @param content
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* 内容
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* @param destPath
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* 存储地址
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* @throws Exception
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*/
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public static void encode(String content, String destPath) throws Exception {
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CodeUtil.encode(content, null, destPath, false);
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}
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/**
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* 生成二维码(内嵌LOGO)
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*
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* @param content
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* 内容
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* @param imgPath
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* LOGO地址
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* @param output
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* 输出流
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* @param needCompress
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* 是否压缩LOGO
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* @throws Exception
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*/
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public static void encode(String content, String imgPath,
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OutputStream output, boolean needCompress) throws Exception {
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BufferedImage image = CodeUtil.createImage(content, imgPath,
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needCompress,null);
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ImageIO.write(image, FORMAT_NAME, output);
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}
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/**
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* 生成二维码
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*
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* @param content
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* 内容
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* @param output
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* 输出流
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* @throws Exception
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*/
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public static void encode(String content, OutputStream output)
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throws Exception {
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CodeUtil.encode(content, null, output, false);
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}
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public static void main(String[] args) throws Exception {
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/* String text = "http://www.baidu.com";
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System.out.println(CodeUtil.encode(text, "", true, "你好","111"));*/
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}
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}
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