我正在使用多部分表单数据从客户端上传图像文件。我想使用node.js接收并将其作为文件写入服务器端。
<html>
<body>
<form action="url" method="post" enctype="multipart/form-data">
<input type="text" name="imageName">
<input type="file" name="sam">
</form>
</body>
</html>
这是我的客户端代码。如何在服务器端处理此文件。
最佳答案
链接下面是重复的问题。
Uploading images using Node.js, Express, and Mongoose
这是示例:
// 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('/', function(req, 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');
如果您的问题无法解决，请访问 this link 。这是一篇关于文件上传的不错的文章。
关于forms - 如何在node.js中处理multipart/form-data，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/13174245/