我正在使用多部分表单数据从客户端上传图像文件.我想接收并使用node.js将其作为服务器端的文件写入.
<html>
<body>
<form action="url" method="post" enctype="multipart/form-data">
<input type="text" name="imageName">
<input type="file" name="sam">
</form>
</body>
</html>
解决方法
以下链接重复提问.
Uploading images using Node.js,Express,and Mongoose
这是一个例子：
// Expose modules in ./support for demo purposes
require.paths.unshift(__dirname + '/../../support');
/**
* Module dependencies.
*/
var express = require('../../lib/express'),form = require('connect-form');
var app = express.createServer(
// connect-form (http://github.com/visionmedia/connect-form)
// middleware uses the formidable middleware to parse urlencoded
// and multipart form data
form({ keepExtensions: true })
);
app.get('/',function(req,res){
res.send('<form method="post" enctype="multipart/form-data">'
+ '<p>Image: <input type="file" name="image" /></p>'
+ '<p><input type="submit" value="Upload" /></p>'
+ '</form>');
});
app.post('/',res,next){
// connect-form adds the req.form object
// we can (optionally) define onComplete,passing
// the exception (if any) fields parsed,and files parsed
req.form.complete(function(err,fields,files){
if (err) {
next(err);
} else {
console.log('\nuploaded %s to %s',files.image.filename,files.image.path);
res.redirect('back');
}
});
// We can add listeners for several form
// events such as "progress"
req.form.on('progress',function(bytesReceived,bytesExpected){
var percent = (bytesReceived / bytesExpected * 100) | 0;
process.stdout.write('Uploading: %' + percent + '\r');
});
});
app.listen(3000);
console.log('Express app started on port 3000');
