1,添加依赖

  1. <dependencies>
  2.         <dependency>
  3.             <groupId>org.springframework.boot</groupId>
  4.             <artifactId>spring-boot-starter-web</artifactId>
  5.             <version>2.3.2.RELEASE</version>
  6.         </dependency>
  7.         <dependency>
  8.             <groupId>org.springframework.boot</groupId>
  9.             <artifactId>spring-boot-autoconfigure</artifactId>
  10.             <version>2.3.2.RELEASE</version>
  11.         </dependency>
  12.         <dependency>
  13.             <groupId>com.google.zxing</groupId>
  14.             <artifactId>core</artifactId>
  15.             <version>2.3.0</version>
  16.         </dependency>
  17.         <dependency>
  18.             <groupId>com.google.zxing</groupId>
  19.             <artifactId>javase</artifactId>
  20.             <version>2.3.0</version>
  21.         </dependency>
  22.         <dependency>
  23.             <groupId>com.github.liuyueyi.media</groupId>
  24.             <artifactId>qrcode-plugin</artifactId>
  25.             <version>2.5.2</version>
  26.         </dependency>
  27.         <dependency>
  28.             <groupId>commons-lang</groupId>
  29.             <artifactId>commons-lang</artifactId>
  30.             <version>2.6</version>
  31.         </dependency>
  32. </dependencies>

2,application.yml配置上传文件大小

  1. spring:
  2.   servlet:
  3.     multipart:
  4.       max-file-size: 50MB
  5.       max-request-size: 100MB

3,创建QrCodeUtil类,生成base64编码,前面拼接”data:image/png;base64,”

  1. package com.huan.util;
  3. import com.github.hui.quick.plugin.qrcode.wrapper.QrCodeGenWrapper;
  4. import com.github.hui.quick.plugin.qrcode.wrapper.QrCodeOptions;
  5. import com.google.zxing.WriterException;
  6. import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
  8. import java.awt.*;
  9. import java.io.IOException;
  10. import java.io.InputStream;
  12. /**
  13.  * @author zyhstart
  14.  * @create 2021-10-04-14:57
  15.  */
  16. public class QrCodeUtil {
  18.     //普通二维码
  19.     public static String normal(String text) throws IOException, WriterException {
  20.         return QrCodeGenWrapper.of(text)
  21.                 .asString();
  22.     }
  24.     //logo二维码
  25.     public static String logo(String text, InputStream logoFile) throws IOException, WriterException {
  26.         return QrCodeGenWrapper.of(text)
  27.                 .setLogo(logoFile) // logo地址 支持网络图片，本地相对路劲图片，本地绝对路径图片
  28.                 .setLogoRate(7)
  29.                 .setLogoStyle(QrCodeOptions.LogoStyle.ROUND)
  30.                 .asString();
  31.     }
  32.     //logo二维码
  33.     public static String logo2(String text, String logoPath) throws IOException, WriterException {
  34.         return QrCodeGenWrapper.of(text)
  35.                     .setLogo(logoPath) //logo地址 支持网络图片，本地相对路劲图片，本地绝对路径图片
  36.                     .setBgH(400).setBgW(400)
  37.                     .setLogoStyle(QrCodeOptions.LogoStyle.ROUND) //圆角
  38.                     .setLogoBgColor(0xfffefefe)
  39.                     .setLogoBorderBgColor(0xffc7c7c7)
  40.                     .setLogoBorder(true)
  41.                     .asString();
  42.     }
  44.     //彩色二维码
  45.     public static String color(String text) throws IOException, WriterException {
  46.         return QrCodeGenWrapper.of(text)
  47.                 .setDrawPreColor(Color.RED)
  48.                 .asString();
  49.     }
  51.     //背景色二维码
  52.     public static String bg(String text,InputStream bgFile) throws IOException, WriterException {
  53.         return QrCodeGenWrapper.of(text)
  54.                 .setBgImg(bgFile)
  55.                 .setBgStyle(QrCodeOptions.BgImgStyle.PENETRATE)
  56.                 .setBgH(500)
  57.                 .setBgW(500)
  58.                 .setW(500)
  59.                 .setH(500)
  60.                 .asString();
  61.     }
  63.     //特殊二维码
  64.     public static String style(String text) throws IOException, WriterException {
  65.         return QrCodeGenWrapper.of(text)
  66.                 .setBgH(500)
  67.                 .setBgW(500)
  68.                 .setW(500)
  69.                 .setH(500)
  70.                 .setDrawEnableScale(true)
  71.                 .setDrawStyle(QrCodeOptions.DrawStyle.CIRCLE)
  72.                 .asString();
  73.     }
  75.     //图片填充二维码
  76.     public static String fill(String text,InputStream bgFile) throws IOException, WriterException {
  77.         return QrCodeGenWrapper.of(text)
  78.                 .setW(500)
  79.                 .setH(500)
  80.                 .setDrawEnableScale(true)
  81.                 .setErrorCorrection(ErrorCorrectionLevel.H)
  82.                 .setDrawStyle(QrCodeOptions.DrawStyle.IMAGE)
  83.                 .addImg(1,1,bgFile)
  84.                 .asString();
  85.     }
  87.     //gif二维码
  88.     public static String gif(String text,InputStream bgFile) throws IOException, WriterException {
  89.         return QrCodeGenWrapper.of(text)
  90.                 .setW(500)
  91.                 .setH(500)
  92.                 .setBgImg(bgFile)
  93.                 .setBgOpacity(0.5f)
  94.                 .setPicType("gif")
  95.                 .asString();
  96.     }
  97. }