从画布上传图像

Question

Some one please help me, This is the first time i am using canvas in html,and the question is, is there any way to pass the image from canvas into server using multipart file upload in form submission ....

Answer 1

yes you can upload your canvas with canvas.toDataURL('image/jpeg') and ajax

$.post('/upload',
{
    uid : uid,
    img : canvas.toDataURL('image/jpeg')
},
function(data) {});

for multi-part upload visit this question

JavaScript Blob Upload with FormData

and its easy way for convert canvas to blob

https://blueimp.github.io/JavaScript-Canvas-to-Blob/test/