Spring Boot集成zxing实现生成二维码功能

1.二维码介绍

二维码QR Code(Quick Response Code)

由Denso公司于1994年9月研制的一种矩阵二维码符号，它具有一维条码及其它二维条码所具有的信息容量大、可靠性高、可表示汉字及图象多种文字信息、保密防伪性强等优点。

 ZXing

一个支持在图像中解码和生成条形码(如二维码、PDF 417、EAN、UPC、Aztec、Data Matrix、Codabar)的库。ZXing(“zebra crossing”)是一个开源的、多格式的、用Java实现的一维/二维条码图像处理库，具有到其他语言的端口。

2.代码功能

 pom.xml

    

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

    
<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0"         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">    <parent>        <artifactId>springboot-demo</artifactId>        <groupId>com.et</groupId>        <version>1.0-SNAPSHOT</version>    </parent>    <modelVersion>4.0.0</modelVersion>
    <artifactId>qrcode</artifactId>
    <properties>        <maven.compiler.source>8</maven.compiler.source>        <maven.compiler.target>8</maven.compiler.target>    </properties>    <dependencies>
        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-web</artifactId>        </dependency>
        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-autoconfigure</artifactId>        </dependency>        <dependency>            <groupId>org.springframework.boot</groupId>            <artifactId>spring-boot-starter-test</artifactId>            <scope>test</scope>        </dependency>        <dependency>            <groupId>com.google.zxing</groupId>            <artifactId>javase</artifactId>            <version>3.4.1</version>        </dependency>        <dependency>            <groupId>cn.hutool</groupId>            <artifactId>hutool-all</artifactId>            <version>4.5.15</version>        </dependency>    </dependencies></project>

applicatio.yaml

    

     

     

    
server:  port: 8088

QRCodeGenerator.java

    

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

    
package com.et.qrcode.util;
import com.google.zxing.BarcodeFormat;import com.google.zxing.WriterException;import com.google.zxing.client.j2se.MatrixToImageWriter;import com.google.zxing.common.BitMatrix;import com.google.zxing.qrcode.QRCodeWriter;
import java.io.ByteArrayOutputStream;import java.io.IOException;import java.nio.file.FileSystems;import java.nio.file.Path;import java.util.Base64;
/** * QRCodeGenerator * * @author zhouzhaodong */public class QRCodeGenerator {
    /**     * generateQRCodeImage     * @param text     * @param width     * @param height     * @param filePath     * @throws WriterException     * @throws IOException     */    public static void generateQRCodeImage(String text, int width, int height, String filePath)            throws WriterException, IOException {        QRCodeWriter qrCodeWriter = new QRCodeWriter();        BitMatrix bitMatrix = qrCodeWriter.encode(text, BarcodeFormat.QR_CODE, width, height);        Path path = FileSystems.getDefault().getPath(filePath);        MatrixToImageWriter.writeToPath(bitMatrix, "PNG", path);    }
    /**     * writeToStream     * @param text     * @param width     * @param height     * @return     */    public static String writeToStream(String text, int width, int height) {        String message = "";        QRCodeWriter qrCodeWriter = new QRCodeWriter();        BitMatrix bitMatrix;        try {            bitMatrix = qrCodeWriter.encode(text, BarcodeFormat.QR_CODE, width, height);            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();            MatrixToImageWriter.writeToStream(bitMatrix, "PNG", outputStream);            Base64.Encoder encoder = Base64.getEncoder();            message = encoder.encodeToString(outputStream.toByteArray());        } catch (Exception e) {            e.printStackTrace();        }        return message;    }
}

Controller

    

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

    
package com.et.qrcode.controller;
import cn.hutool.core.io.FileUtil;import cn.hutool.extra.qrcode.QrCodeUtil;import cn.hutool.extra.qrcode.QrConfig;import com.et.qrcode.util.QRCodeGenerator;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;
import java.awt.*;
/** * generate qrcode * @author zhouzhaodong */@Controllerpublic class QRCodeController {
    /**     * qrcodeImage     * @param orderNo     * @return     */    @RequestMapping("/original/qrcode/image")    public String qrcodeImage(String orderNo) {        String failPath = "D:\\tmp\\" + orderNo + ".png";        try {            QRCodeGenerator.generateQRCodeImage(orderNo, 350, 350,  failPath);        } catch (Exception e) {            e.printStackTrace();        }        return failPath;    }
    /**     * qrcodeBase64     * @param orderNo     * @return     */    @RequestMapping("/original/qrcode/base64")    public String qrcodeBase64(String orderNo) {        String message = "";        try {            message = QRCodeGenerator.writeToStream(orderNo, 350, 350);        } catch (Exception e) {            e.printStackTrace();        }        return message;    }

    @RequestMapping("/hblog/qrcode/image1")    public String hutoolsImages1() {        String message = "";        try {            QrConfig config = new QrConfig(300, 300);            // Set the margin, that is, the margin between the QR code and the background            config.setMargin(3);            // Set the foreground color, which is the QR code color (cyan)            config.setForeColor(Color.CYAN.getRGB());            // Set background color (gray)            config.setBackColor(Color.GRAY.getRGB());            // Generate QR code to file or stream            QrCodeUtil.generate("http://www.liuhiahua.cn/", config, FileUtil.file("D:\\tmp\\hblog1.png"));        } catch (Exception e) {            e.printStackTrace();        }        return message;    }
    @RequestMapping("/hblog/qrcode/image2")    public String hutoolsImages2() {        String message = "";        try {            QrCodeUtil.generate(//                    "http://www.liuhiahua.cn/", //content                    QrConfig.create().setImg("D:\\tmp\\logo.png"), //logo                    FileUtil.file("D:\\tmp\\qrcodeWithLogo.jpg")//output file            );        } catch (Exception e) {            e.printStackTrace();        }        return message;    }
}

DemoApplication.java

    

     

     

     

     

     

     

     

     

     

     

     

     

    
package com.et.qrcode;
import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplicationpublic class DemoApplication {
   public static void main(String[] args) {      SpringApplication.run(DemoApplication.class, args);   }}

代码仓库

• https://github.com/Harries/springboot-demo

3.测试

原始zxing生成qrcode

访问http://127.0.0.1:8088/original/qrcode/image?orderNo=222，查看目录下生成的文件

采用hutool生成qrcode

访问http://127.0.0.1:8088//hblog/qrcode/image2，查看文件

生成带有logo的二维码

访问http://127.0.0.1:8088//hblog/qrcode/image1，查看文件

4.引用

• https://www.bookstack.cn/read/hutool/18a69dd68fd334c8.md

• http://www.liuhaihua.cn/archives/710338.html

• https://zxing.github.io/zxing/