Javascript 如何更改目录&;在nodeJs中上载时重命名文件?
我正在使用multer和fs上传图像文件 由于所有文件都存储在我的“routes”文件夹中,而不是multer创建的“uploads”,因此如何更改上载文件的目录 另外,如何更改文件名示例: username.jpg 这是我的代码:Javascript 如何更改目录&;在nodeJs中上载时重命名文件?,javascript,html,node.js,express,multer,Javascript,Html,Node.js,Express,Multer,我正在使用multer和fs上传图像文件 由于所有文件都存储在我的“routes”文件夹中,而不是multer创建的“uploads”,因此如何更改上载文件的目录 另外,如何更改文件名示例: username.jpg 这是我的代码: var upload = multer({ dest: '/tmp' }); router.post('/file_upload', upload.single("file"), function (req, res) { var file = __dir
var upload = multer({ dest: '/tmp' });
router.post('/file_upload', upload.single("file"), function (req, res) {
var file = __dirname + "/" + req.file.originalname;
fs.readFile(req.file.path, function (err, data) {
fs.writeFile(file, data, function (err) {
if (err) {
console.log(err);
} else {
res.redirect("back");
}
});
});
})
在客户端:
<html>
<head>
<title>File Uploading Form</title>
</head>
<body>
<h3>File Upload:</h3>
Select a file to upload:
<br />
<form action="/file_upload" method="POST" enctype="multipart/form-
data">
<input type="file" name="file" />
<input type="submit" value="Upload File" />
</form>
</body>
</html>
文件上载表格
文件上载:
选择要上载的文件:
您的变量文件是否指定了写入文件的位置
var file = __dirname + "/NewFolder/" + newFileName.jpg
除非您需要将上载的文件保留在其原始上载位置,否则我将按如下方式执行:
var upload = multer({ dest: '/tmp' });
router.post('/file_upload', upload.single('file'), function (req, res) {
// Here change 'uploads' to the folder name you prefer.
// Also change req.file.originalname for your preferred file name
var file = path.join(__dirname, 'uploads', req.file.originalname)
fs.rename(req.file.path, file, function (err) {
if (err) {
console.log(err);
} else {
res.redirect("back")
}
})
})
在存储变量中声明目录
var storage = multer.diskStorage({
destination: function (req, file, cb) {
cb(null, './')//Declare it here where you want to store
},
filename: function (req, file, cb) {
cb(null, file.originalname);//You can give name here file.****
}
});
var upload = multer({
storage: storage
});
在处理post请求时
var path = req.files[0].path;
var imageName = req.files[0].originalname;//change name here
var imagepath = {};
imagepath['path'] = path;
imagepath['originalname'] = imageName; // name change