vue使用html2canvas实现截图某区域

使用html2canvas实现页面截图某区域

安装

npm install html2canvas

页面使用

引入

import html2canvas from 'html2canvas';

实现截图

<template>
  截图
  <div ref="captureArea" class="capture-area">
    <!-- 这是你想要截图的区域 -->
    <p>这个区域将会被截图。</p>
    <el-table :data="tableData" border style="width: 100%">
      <el-table-column prop="date" label="Date" width="180" />
      <el-table-column prop="name" label="Name" width="180" />
      <el-table-column prop="address" label="Address" />
    </el-table>
  </div>
  <button @click="takeScreenshot">截图</button>
  <img v-if="screenshot" :src="screenshot" alt="Screenshot" />
</template>
<script setup lang="ts">
import { ref } from "vue";
import html2canvas from 'html2canvas';

const tableData = [
  {
    date: '2016-05-03',
    name: 'Tom',
    address: 'No. 189, Grove St, Los Angeles',
  },
  {
    date: '2016-05-02',
    name: 'Tom',
    address: 'No. 189, Grove St, Los Angeles',
  },
  {
    date: '2016-05-04',
    name: 'Tom',
    address: 'No. 189, Grove St, Los Angeles',
  },
  {
    date: '2016-05-01',
    name: 'Tom',
    address: 'No. 189, Grove St, Los Angeles',
  },
]

const captureArea: any = ref(null);

const screenshot: any = ref(null);

const takeScreenshot = async () => {
  // 使用 html2canvas 截图
  const canvas = await html2canvas(captureArea.value);
  screenshot.value = canvas.toDataURL('image/png');
}

</script>

<style>
.capture-area {
  padding: 20px;
  background-color: #f9f9f9;
  border: 1px solid #ccc;
}
</style>