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Java 开发精美艺术二维码

看到网络上各种各样的二维码层出不穷，好像很炫酷的样子，一时兴起，我也要制作这种炫酷二维码效果

例如：

根据以往例子

根据之前所做的小项目 java 开发二维码系统

以这个为基础，将实现精美艺术二维码

基本代码：

// 创建二维码对象
Qrcode qrcode = new Qrcode();
// 设置二维码的纠错级别
// L(7%) M(15%) Q(25%) H(30%)
qrcode.setQrcodeErrorCorrect('L'); // 一般纠错级别小一点
// 设置二维码的编码模式 Binary(按照字节编码模式)
qrcode.setQrcodeEncodeMode('B');
// 设置二维码的版本号 1-40  1:20*21    2:25*25   40:177*177
qrcode.setQrcodeVersion(7);
// 生成二维码中要存储的信息
String qrData = "https://ainyi.com";
// 设置一下二维码的像素
int width = 300;
int height = 300;
BufferedImage bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
// 绘图
Graphics2D gs = bufferedImage.createGraphics();
gs.setBackground(Color.WHITE);
gs.setColor(Color.BLACK);
gs.clearRect(0, 0, width, height); // 清除下画板内容// 设置下偏移量，如果不加偏移量，有时会导致出错
int pixoff = 2;byte[] d = qrData.getBytes("utf-8");
if(d.length > 0 && d.length <120){boolean[][] s = qrcode.calQrcode(d);for(int i=0;i<s.length;i++){for(int j=0;j<s.length;j++){if(s[j][i]){gs.fillRect(j*3+pixoff, i*3+pixoff, 3, 3);}}}
}
gs.dispose();
bufferedImage.flush();
ImageIO.write(bufferedImage, "png", new File("E:/code/qrcode.png"));

准备工作

java 可以实现生成二维码，需要用到 Qrcode 的 jar 包

1. java、jsp
2. struts2 以及相关 jar 包
3. Qrcode.jar
4. 文件上传相关 jar 包

• 自己编写摸索出来的艺术二维码算法
• 响应式

实现流程

因为要实现精美艺术二维码，把黑白二维码的黑色部分，点状部分替换成有颜色的点，汇聚成一张精美的二维码

那么实现的关键点就是：==替换==

将制作好的小图片素材，按照编号命名，三个码眼使用大图片素材，其他使用不相同小图片素材，绘制二维码图片的时候，将画笔改为将插入图片素材 drawImage

根据不同类型的艺术二维码（不同的素材），使用不同的算法

话不多说，上代码

/*** QrcodeText 二维码* @author krry* @version 1.0**/
public class QrcodeText{private static int width = 975;private static int height = 975;// 设置偏移量，不设置可能导致解析出错private static int pixoff = 25;// 像素大小private static int pix = 25;// 二维码数组的长度private static int codeLength;// 随机数，生成[0,2]之间的随机整数,取长度为3的数组下标private static int max = 3;//素材图片容器private static BufferedImage image_eye;private static BufferedImage image11;private static BufferedImage image12;private static BufferedImage image13;private static BufferedImage image21;private static BufferedImage image22;private static BufferedImage image23;private static BufferedImage image31;private static BufferedImage image32;private static BufferedImage image33;private static BufferedImage image41;private static BufferedImage image42;private static BufferedImage image43;/*** 生成二维码* @param message  二维码内容* @param type   二维码类型 如：锁屏* @param filename     二维码类型下的标号  如1* @param arti     使用算法类型  如0  热门* @param transparent 是否透明     1：透明  0背景是白色* @param request  请求* @return*/public static String qrcode(String message,String type,String filename,String arti,String transparent,HttpServletRequest request){String pathName = null;FileOutputStream outputStream = null;try{//创建二维码对象Qrcode qrcode = new Qrcode();//设置二维码的纠错级别//L(7%) M(15%) Q(25%) H(30%)qrcode.setQrcodeErrorCorrect('L'); //一般纠错级别小一点//设置二维码的编码模式 Binary(按照字节编码模式)qrcode.setQrcodeEncodeMode('B');//设置二维码的版本号 1-40  1:20*21    2:25*25   40:177*177qrcode.setQrcodeVersion(5);//获取图片缓存流对象BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);//获取画笔Graphics2D gs = image.createGraphics();//判断是否使用二维码背景颜色是透明if(transparent.equals("yes")){//设置透明image = gs.getDeviceConfiguration().createCompatibleImage(width, height, Transparency.TRANSLUCENT);  gs = image.createGraphics();} else {gs.setBackground(Color.WHITE);gs.clearRect(0, 0, width, height);}//设置内容String content = message;byte[] contentsBytes = content.getBytes("utf-8");//二维码boolean[][] code = qrcode.calQrcode(contentsBytes);//获取二维码数组的长度codeLength = code.length;//码眼部分全部设置为falsefor(int i=0;i<7;i++){for(int j=0;j<7;j++){code[i][j]=false;}for(int j=codeLength-7;j<codeLength;j++){code[i][j]=false;code[j][i]=false;}}//获取资源地址String aspath = request.getServletContext().getRealPath("/resource");//加载图片loadImage(aspath,type,filename);//绘制二维码，选择算法if(arti.equals("0")) drawQrcodeHot(gs, code); //热门算法else if(arti.equals("1")) drawQrcodeOrdi(gs, code); //最初算法else if(arti.equals("2")) drawQrcodeRiTojiao(gs, code); //三角算法//如果类型不是单码，则装载背景图片，将二维码写进背景图片中，只有单码没有背景if(!type.equals("dan")){//装载背景图片BufferedImage imageBG = ImageIO.read(new FileInputStream(aspath+"\\images\\ImageMaker\\"+type+"\\"+filename+"\\bg.jpg"));//获取背景图片的画笔Graphics2D bg = imageBG.createGraphics();//位置坐标int x = 0;int y = 0;//如果类型是方形，判断二维码在背景图片的位置,单码图片缩小到640像素if(type.equals("fang")){x = (imageBG.getWidth() - 640) / 2;y = (imageBG.getHeight() - 640) / 2;}//如果类型是名片，判断二维码在背景图片的位置,单码图片缩小到640像素if(type.equals("ming")){x = (imageBG.getWidth() - 100) / 2;y = (imageBG.getHeight() - 640) / 2;}//如果类型是锁屏，判断二维码在背景图片的位置,单码图片缩小到640像素if(type.equals("suo")){x = (imageBG.getWidth() - 640) / 2;y = (imageBG.getHeight() - 1100) / 2;}//将单码图片写进背景图片中,单码图片缩小到640像素bg.drawImage(image, x, y, 640, 640, null);//释放画笔bg.dispose();gs.dispose();//生成二维码图片String realPath = request.getRealPath("/");//String realPath = 服务器项目的地址;pathName = new Date().getTime()+".jpg";outputStream = new FileOutputStream(new File(realPath+"upload\\", pathName));ImageIO.write(imageBG, "jpg", outputStream);} else { //如果类型是单码，直接释放输出//释放画笔gs.dispose();//生成二维码图片String realPath = request.getRealPath("/");//String realPath = 服务器项目的地址;pathName = new Date().getTime()+".png";outputStream = new FileOutputStream(new File(realPath+"upload\\", pathName));ImageIO.write(image, "png", outputStream);}} catch (Exception e){e.printStackTrace();} finally {try {//关闭流outputStream.close();} catch (IOException e) {e.printStackTrace();}}return pathName;}/*** 加载图片素材* @param aspath* @param type* @param filename*/public static void loadImage(String aspath,String type,String filename){try {//加载码眼image_eye = ImageIO.read(new FileInputStream(aspath+"\\images\\ImageMaker\\"+type+"\\"+filename+"\\eye.png"));//装载50*50的图片素材image11 = ImageIO.read(new FileInputStream(aspath+"\\images\\ImageMaker\\"+type+"\\"+filename+"\\11.png"));image12 = ImageIO.read(new FileInputStream(aspath+"\\images\\ImageMaker\\"+type+"\\"+filename+"\\12.png"));image13 = ImageIO.read(new FileInputStream(aspath+"\\images\\ImageMaker\\"+type+"\\"+filename+"\\13.png"));//装载100*50的图片素材image21 = ImageIO.read(new FileInputStream(aspath+"\\images\\ImageMaker\\"+type+"\\"+filename+"\\21.png"));image22 = ImageIO.read(new FileInputStream(aspath+"\\images\\ImageMaker\\"+type+"\\"+filename+"\\22.png"));image23 = ImageIO.read(new FileInputStream(aspath+"\\images\\ImageMaker\\"+type+"\\"+filename+"\\23.png"));//装载50*100的图片素材image31 = ImageIO.read(new FileInputStream(aspath+"\\images\\ImageMaker\\"+type+"\\"+filename+"\\31.png"));image32 = ImageIO.read(new FileInputStream(aspath+"\\images\\ImageMaker\\"+type+"\\"+filename+"\\32.png"));image33 = ImageIO.read(new FileInputStream(aspath+"\\images\\ImageMaker\\"+type+"\\"+filename+"\\33.png"));//装载100*100的图片素材image41 = ImageIO.read(new FileInputStream(aspath+"\\images\\ImageMaker\\"+type+"\\"+filename+"\\41.png"));image42 = ImageIO.read(new FileInputStream(aspath+"\\images\\ImageMaker\\"+type+"\\"+filename+"\\42.png"));image43 = ImageIO.read(new FileInputStream(aspath+"\\images\\ImageMaker\\"+type+"\\"+filename+"\\43.png"));} catch (Exception e) {e.printStackTrace();}}/*** 绘制 算法0  热门二维码   素材有50*50 50*100 100*50 100*100* @param gs 画笔* @param code 二维码数组*/public static void drawQrcodeHot(Graphics2D gs,boolean[][] code){//把图片素材放进数组BufferedImage[] img1 = {image11,image12,image13};BufferedImage[] img2 = {image21,image22,image23};BufferedImage[] img3 = {image31,image32,image33};BufferedImage[] img4 = {image41,image42,image43};//通用地绘制码眼gs.drawImage(image_eye, pix, pix, pix*7, pix*7, null);gs.drawImage(image_eye, (codeLength-7)*pix+pixoff, pix, pix*7, pix*7, null);gs.drawImage(image_eye, pix, (codeLength-7)*pix+pixoff, pix*7, pix*7, null);Random random = new Random();// 绘制for (int i = 0; i < codeLength; i++) {for (int j = 0; j < codeLength; j++) {if (code[i][j]) {if (i+1 < codeLength && j+1 < codeLength && code[i][j + 1] && code[i + 1][j + 1] && code[i + 1][j]){//随机取图片，画100*100的图int s4 = random.nextInt(max);gs.drawImage(img4[s4], i * pix + pixoff, j * pix + pixoff, pix * 2, pix * 2, null);code[i][j + 1] = code[i + 1][j] = code[i + 1][j + 1] = false;} else if(j+1 < codeLength && code[i][j+1]){//随机取图片，画50*100的图int s3 = random.nextInt(max);gs.drawImage(img3[s3], i * pix + pixoff, j * pix + pixoff, pix, pix*2, null);code[i][j+1] = false;} else if (i+1 < codeLength && code[i+1][j]) {//随机取图片，画100*50的图int s2 = random.nextInt(max);gs.drawImage(img2[s2], i * pix + pixoff, j * pix + pixoff, pix * 2, pix, null);code[i+1][j] = false;} else {//随机取图片，画50*50的图int s1 = random.nextInt(max);gs.drawImage(img1[s1], i * pix + pixoff, j * pix + pixoff, pix, pix, null);}}}}}/*** 绘制  算法2 二维码   素材有50*50 50*100 100*50 100*100  其中100*100是三个角的算法，右上角没有填充* @param gs 画笔* @param code 二维码数组*/public static void drawQrcodeRiTojiao(Graphics2D gs,boolean[][] code){System.out.println("三角啊");//把图片素材放进数组BufferedImage[] img1 = {image11,image12,image13};BufferedImage[] img2 = {image21,image22,image23};BufferedImage[] img3 = {image31,image32,image33};BufferedImage[] img4 = {image41,image42,image43};//通用地绘制码眼gs.drawImage(image_eye, pix, pix, pix*7, pix*7, null);gs.drawImage(image_eye, (codeLength-7)*pix+pixoff, pix, pix*7, pix*7, null);gs.drawImage(image_eye, pix, (codeLength-7)*pix+pixoff, pix*7, pix*7, null);Random random = new Random();// 绘制for (int i = 0; i < codeLength; i++) {for (int j = 0; j < codeLength; j++) {if (code[i][j]) {if (i+1 < codeLength && j+1 < codeLength && code[i][j + 1] && code[i + 1][j + 1]){//随机取图片，画100*100的图  右上角没有填充int s4 = random.nextInt(max);gs.drawImage(img4[s4], i * pix + pixoff, j * pix + pixoff, pix * 2, pix * 2, null);code[i][j + 1] = code[i + 1][j + 1] = false;} else if(j+1 < codeLength && code[i][j+1]){//随机取图片，画50*100的图int s3 = random.nextInt(max);gs.drawImage(img3[s3], i * pix + pixoff, j * pix + pixoff, pix, pix*2, null);code[i][j+1] = false;} else if (i+1 < codeLength && code[i+1][j]) {//随机取图片，画100*50的图int s2 = random.nextInt(max);gs.drawImage(img2[s2], i * pix + pixoff, j * pix + pixoff, pix * 2, pix, null);code[i+1][j] = false;} else {//随机取图片，画50*50的图int s1 = random.nextInt(max);gs.drawImage(img1[s1], i * pix + pixoff, j * pix + pixoff, pix, pix, null);}}}}}/*** 绘制  算法1 普通二维码   素材有50*50 50*100 50*150* @param gs 画笔* @param code 二维码数组*/public static void drawQrcodeOrdi(Graphics2D gs,boolean[][] code){//把图片素材放进数组BufferedImage[] img1 = {image11,image12,image13};BufferedImage[] img2 = {image21,image22,image23};BufferedImage[] img3 = {image31,image32,image33};//通用地绘制码眼gs.drawImage(image_eye, pix, pix, pix*7, pix*7, null);gs.drawImage(image_eye, (codeLength-7)*pix+pixoff, pix, pix*7, pix*7, null);gs.drawImage(image_eye, pix, (codeLength-7)*pix+pixoff, pix*7, pix*7, null);Random random = new Random();for(int i = 0;i < codeLength;i++){for(int j = 0;j < codeLength;j++){//1*3if(code[i][j]){if(i+2 < codeLength && code[i+1][j] && code[i+2][j]){//随机取图片  下标随机[0,2]，画50*150的图int s3 = random.nextInt(max);gs.drawImage(img3[s3], j*25+pixoff, i*25+pixoff, 25, 75, null);code[i+2][j]=false;code[i+1][j]=false;}else if(i+1 < codeLength && code[i+1][j]){//1*2//随机取图片，画50*100的图int s2 = random.nextInt(max);gs.drawImage(img2[s2], j*25+pixoff, i*25+pixoff, 25, 50, null);code[i+1][j]=false;} else {//随机取图片，画50*50的图int s1 = random.nextInt(max);gs.drawImage(img1[s1], j*25+pixoff, i*25+pixoff, 25, 25, null);}}}}}
}

项目截图

说明

1. 以下截图的项目，生成二维码的价格均是测试用例，并不会真的需要支付.....
2. 目前只实现==单码==的艺术二维码生成，其他暂不支持~~
3. 除了单码，其他二维码样例图片取自第九工场

相关地址

项目地址：https://www.ainyi.com/krry_AiQrcode

GitHub：https://github.com/Krryxa/krry_AiQrcode

欢迎 start

krryblog：https://ainyi.com

博客地址：https://ainyi.com/58