1、命令:npm install --save html2canvas

2、在angular.json中引入

3、在typings.d.ts中定义下

4、html代码

<div id="capture">页面内容(要保存部分id为capture)</div>
<a #downLoadImg class="down-load" href="" download="{{title}}.jpg">
  <i *ngIf="isDown" title="保存图片" class="anticon anticon-save"></i>
</a>

5、ts代码

@ViewChild('downLoadImg') downloadimg: ElementRef;
// 下载
downLoadImg() {
  const that = this;
  this.isDown = false;
  setTimeout(() => {
    html2canvas(document.querySelector("#capture")).then(canvas => {
    that.downloadimg.nativeElement.href = canvas.toDataURL("image/jpeg");
    that.isDown = true;
  });
  },1200)
}

 

posted on 2019-08-05 16:13  奇迹般若果  阅读(794)  评论(0编辑  收藏  举报