Javascript 是否将文件从客户端浏览器上载到mongodb或磁盘?
我在使用node.js和express framework上传文件时遇到问题 下面是我的app.js代码:Javascript 是否将文件从客户端浏览器上载到mongodb或磁盘?,javascript,node.js,mongodb,express,busboy,Javascript,Node.js,Mongodb,Express,Busboy,我在使用node.js和express framework上传文件时遇到问题 下面是我的app.js代码: var express = require('express'); var fs = require('fs'); var busboy = require('connect-busboy'); var app = express(); app.use(busboy()); app.post('/fileupload', function(req, res) { var fs
var express = require('express');
var fs = require('fs');
var busboy = require('connect-busboy');
var app = express();
app.use(busboy());
app.post('/fileupload', function(req, res) {
var fstream;
console.log(req.filename);
req.pipe(req.busboy);
req.busboy.on('file', function (fieldname, file, filename) {
console.log("Uploading: " + filename);
fstream = fs.createWriteStream(__dirname + '/public/' + filename);
file.pipe(fstream);
fstream.on('close', function () {
res.redirect('back');
});
});
});
HTML代码是
<form id="uploadForm" enctype="multipart/form-data" action="/fileupload" method="post">
<div class="azureD" style="display:none;">
<div class="pull-left">
<label class="labelTemp">Subscription ID</label>
<div class="clickRole addStoTabWid">
<input type="text" id="" placeholder="" style="border:none;width:100%;">
</div>
</div>
<div class="pull-left">
<label class="labelTemp">Upload .pem file</label>
<div class="clickRole addStoTabWid">
<input type="file" name="file" id="file" placeholder="" style="border:none;width:100%;">
</div>
</div>
<div class="modal-footer">
</br>
<input type="submit" value="Upload" name="submit">
</div>
</form>
我已经检查了所有我无法用我的代码修复此问题的内容,请帮助我解决此问题
我想知道是否有其他替代方法可以从浏览器上传文件并将其存储到mongodb或localdisk中看起来
fstream
未定义,因为file.pipe()
导致了错误。确保传递到fs.createWriteStream()
的文件路径是正确的 使用以下代码段。它适合你
var upload_path = path.resolve(__dirname + '../../../public/uploads');
var result = {
status: 0,
message: '',
data: ''
};
fs.readFile(req.files.file.path, function (err, data) {
var imageName = Date.now() +"_"+req.files.file.name;
/// If there's an error
if(err){
//error
} else {
var newPath = path.resolve(upload_path, imageName);
fs.writeFile(newPath, data, function (err) {
if(err) {
//error
} else {
fs.unlink(req.files.file.path, function() {
if (err) {
result.status = -1;
result.message = err;
} else {
result.data = imageName;
}
res.jsonp(result);
});
}
});
}
});
请在我需要添加此代码段的地方进行详细说明。.提前谢谢,而且在添加您的代码后,我也面临此问题。.write(字符串、编码、偏移量、长度)已被弃用。请改用write(字符串[、偏移量[、长度]][、编码]。“用after app.post('/fileupload',function(req、res){write(字符串)替换此代码。”[,偏移量[,长度]][,编码])。这是由于express和node版本造成的。您的express版本较高。请您将我的答案标记为正确。谢谢
var upload_path = path.resolve(__dirname + '../../../public/uploads');
var result = {
status: 0,
message: '',
data: ''
};
fs.readFile(req.files.file.path, function (err, data) {
var imageName = Date.now() +"_"+req.files.file.name;
/// If there's an error
if(err){
//error
} else {
var newPath = path.resolve(upload_path, imageName);
fs.writeFile(newPath, data, function (err) {
if(err) {
//error
} else {
fs.unlink(req.files.file.path, function() {
if (err) {
result.status = -1;
result.message = err;
} else {
result.data = imageName;
}
res.jsonp(result);
});
}
});
}
});