app.post(‘/upload‘, function(req, res){
???//接收前台POST过来的base64
???var imgData = req.body.imgData;
???//过滤data:URL
???var base64Data = imgData.replace(/^data:image\/\w+;base64,/, "");
???var dataBuffer = new Buffer(base64Data, ‘base64‘);
???fs.writeFile("image.png", dataBuffer, function(err) {
???????if(err){
?????????res.send(err);
???????}else{
?????????res.send("保存成功！");
???????}
???});
});
Nodejs如何把接收图片base64格式保存为文件存储到服务器上
原文地址：https://www.cnblogs.com/juehai/p/9706141.html