在节点js中上传图片

林新节点js现在我想做图像upload.so我下载了快递框架来处理upload.Please帮我如何处理在服务器端的上传。

我创build了这样的forms如何处理后端节点js

<form method="post" enctype="multipart/form-data" action="/file-upload"> <input type="text" name="username"> <input type="password" name="password"> <input type="file" name="thumbnail"> <input type="submit"> 

Answer 1

使用此方法上传

 app.post('/upload', function(req, res) { // get the temporary location of the file var tmp_path = req.files.thumbnail.path; // set where the file should actually exists - in this case it is in the "images" directory target_path = '/tmp/' + req.files.thumbnail.name; // move the file from the temporary location to the intended location fs.rename(tmp_path, target_path, function(err) { if (err) throw err; // delete the temporary file, so that the explicitly set temporary upload dir does not get filled with unwanted files fs.unlink(tmp_path, function() { if (err) throw err; }); }); }); 

在回顾中显示此方法的path

 fs.readFile(target_path, "binary", function(error, file) { if(error) { res.writeHead(500, {"Content-Type": "text/plain"}); res.write(error + "\n"); res.end(); } else { res.writeHead(200, {"Content-Type": "image/png"}); res.write(file, "binary"); } }); 

请参阅nodejs expressjs上传图像并显示它们以获取更多详细信息