How does vue.js download pictures according to picture url?

This article mainly introduces the "vue.js how to download pictures according to the picture url" related knowledge, editor through the actual case to show you the operation process, the method of operation is simple and fast, practical, I hope that this "vue.js how to download pictures according to the picture url" article can help you solve the problem.

This is the json data returned from the backend (the IP address is coded to prevent the disclosure of important information):

My quote in html goes like this:

Download license

Download the image in the vue.js method:

DownCom () {let that = this; this.$http.files () .then (res = > {let hreLocal= ""; hreLocal= res.data.data.url; this.downloadByBlob (hreLocal, "pic")});}

The following method, you can directly take to use, directly send your picture url to this method, you can achieve vue.js to download pictures.

DownloadByBlob (url,name) {let image = new Image () image.setAttribute ('crossOrigin',' anonymous') image.src = url image.onload = () = > {let canvas = document.createElement ('canvas') canvas.width = image.width canvas.height = image.height let ctx = canvas.getContext (' 2d') ctx.drawImage (image, 0,0, image.width Image.height) canvas.toBlob ((blob) = > {let url = URL.createObjectURL (blob) download (url,name) / / release URL object URL.revokeObjectURL (url)})}}

The download (url,name) method called:

Function download (href, name) {let eleLink = document.createElement ('a') eleLink.download = name eleLink.href = href eleLink.click () eleLink.remove ()}

After completing the above code, you can download the picture instead of browsing it.

Finally, you can download the image with a single click. The effect image is as follows:

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