错误：EXDEV：不允许跨设备链接，重命名 nodejs

Question

我用强大的文件上传文件，但出现此错误

Error: EXDEV: cross-device link not permitted, rename

这是我的代码：

router.post('/file',function(req,res) {
    var form = new formidable.IncomingForm();

function checkFile(filename) {
     if(filename.match(/\.(jpg|jpeg|png)$/i)){
       return form.uploadDir = path.join(__dirname, '../public/uploads/img');
    }else{
       return form.uploadDir = path.join(__dirname, '../public/uploads');
    }
}

  form.multiples = true;
    form.maxFieldsSize = 2 * 300 * 300;
   // every time a file has been uploaded successfully,
  // rename it to it's orignal name
  form.on('file', function(field, file) {
    var fileName = file.name;
    var d = new Date();
    var t = d.getTime();
    var newName = md5(file.name) + t;
    fs.rename(file.path,path.join(checkFile(fileName),newName),function(err) {
        if(err)
            console.log(err);
        console.log('Success')
    });

});
   // log any errors that occur
    form.on('error', function(err) {
        console.log('An error has occured: \n' + err);
    });


    // parse the incoming request containing the form data
    form.parse(req, function(err, fields, files) {
    });
})

当我删除function checkFile并更改为时form.uploadDir = path.join(__dirname, '../public/uploads');，它运行完美。我哪里错了？请帮我

Answer 1

谢谢。使用'mv'包代替文件系统'rename'方法来解决文件上传过程中将文件移动到另一个文件夹时发生的错误：

“错误：EXDEV：不允许跨设备链接，重命名...”

使用 cmd 安装包“mv”：

npm install mv

用法：

var mv = require('mv');

mv('source/file', 'dest/file', function(err) {
....
....
});

Answer 2

问题在于重命名方法。使用“mv”包移动您的文件

https://www.npmjs.com/package/mv