Vue生成Canvas二维码

npm install qrcode

generateQRCode() {
  const canvas = this.$refs.qrCodeCanvas; // 获取canvas DOM元素的引用
  const text = 'Hello, World!'; // 要生成二维码的文本内容
  const options = { // 设置二维码的参数，例如大小、边距等
    width: 200,
    height: 200,
    margin: 2,
  };
  QRCode.toCanvas(canvas, text, options, (error) => {
    if (error) {
      console.error(error);
    } else {
      console.log('QR code generated successfully!');
    }
  });
}

<template>
  <div>
    <canvas ref="qrCodeCanvas"></canvas>
    <button @click="generateQRCode">生成二维码</button>
  </div>
</template>