图片下载到本地,图片保存到本地"/>
vue 图片下载到本地,图片保存到本地
必须同源(访问的网站域名与服务器域名一致)才能下载
downs() {var alink = document.createElement("a");alink.href = this.shop.shoppic_url;alink.download = "pic"; //图片名alink.click();
},
解决图片不同源下载问题:
downloadIamge(imgsrc, name) {//下载图片地址和图片名var image = new Image();// 解决跨域 Canvas 污染问题image.setAttribute("crossOrigin", "anonymous");image.onload = function() {var canvas = document.createElement("canvas");canvas.width = image.width;canvas.height = image.height;var context = canvas.getContext("2d");context.drawImage(image, 0, 0, image.width, image.height);var url = canvas.toDataURL("image/png"); //得到图片的base64编码数据var a = document.createElement("a"); // 生成一个a元素var event = new MouseEvent("click"); // 创建一个单击事件a.download = name || "photo"; // 设置图片名称a.href = url; // 将生成的URL设置为a.href属性a.dispatchEvent(event); // 触发a的单击事件};image.src = imgsrc;
},
downs(){this.downloadIamge(this.pic.url, 'pic')
}
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vue 图片下载到本地,图片保存到本地
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