谁能帮我将画布保存到我的特定 Flask 文件夹中?我用 canvas.toDataURL()
检索图像,但不知道如何上传
HTML:
{% block main %}
<form action="/draw" method="post">
<canvas id="canvas" style="border-style: solid;" width = "400" height = "400" ></canvas><hr>
<button type="button" id="startsave">Save</button>
JS:
window.addEventListener('load', () => {
document.getElementById('startsave').addEventListener('click', startsave);
});
function startsave() {
var ref = canvas.toDataURL("image/png");
var img = document.createElement("img");
img.setAttribute("src", ref);
img.setAttribute("name", "image");
// TODO
}
烧瓶:
@app.route("/draw", methods=["GET", "POST"])
@login_required
def draw():
if request.method == "GET":
return render_template("/draw.html")
else:
#TODO
答案 0 :(得分:0)
对于 Flask,请使用 file.save()
file.save(os.path.join(app.config['UPLOAD_FOLDER'], filename))
您可以在此处参考示例: https://flask.palletsprojects.com/en/1.1.x/patterns/fileuploads/