1.html2canvas
npm install html2canvas
// 引入html2canvas库
import html2canvas from 'html2canvas';
// 设置定时器,每隔10秒执行一次截图操作
setInterval(async () => {
try {
// 将网页内容转换为canvas元素
const canvas = await html2canvas(document.body);
// 将canvas元素转换为图片文件base64
const img = canvas.toDataURL('image/png');
// 图片文件img 处理上床后端
} catch (error) {
console.error('截图失败:', error);
}
}, 10000);
2、获取屏幕流转为图片
async function screenshot() {
// 获取屏幕流
const displayMediaOptions = {
video: {
cursor: "always"
}
};
const stream = await navigator.mediaDevices.getDisplayMedia(displayMediaOptions);
// 创建一个video元素来播放屏幕流
const video = document.createElement('video');
video.srcObject = stream;
await video.play();
// 创建一个canvas元素来截屏
const canvas = document.createElement('canvas');
canvas.width = video.videoWidth;
canvas.height = video.videoHeight;
// 将视频播放的内容绘制到canvas上
const context = canvas.getContext('2d');
context.drawImage(video, 0, 0, canvas.width, canvas.height);
// 将canvas内容转换为base64
const base64 = canvas.toDataURL();
// 关闭视频流
video.srcObject.getTracks().forEach((track) => track.stop());
return base64;
}
3、让使用者在浏览器插件再去调用插件(不推荐)