如何在node.js上移动文件(如mv命令shell) ?是否有任何方法,或者我应该读取一个文件,写到一个新文件,并删除旧文件?


当前回答

根据seppo0010的注释,我使用了重命名函数来完成此操作。

http://nodejs.org/docs/latest/api/fs.html#fs_fs_rename_oldpath_newpath_callback

fs。重命名(oldPath, newPath, callback) 新增于:v0.0.2 oldPath <String> | <Buffer> newPath <String> | <Buffer> . newPath <String> 回调函数> < 异步重命名(2)。除了可能的异常,没有参数 赋给完成回调函数。

其他回答

就像上面的回答中所说的那样,我的2分:copy()方法不应该在没有轻微调整的情况下原样用于复制文件:

function copy(callback) {
    var readStream = fs.createReadStream(oldPath);
    var writeStream = fs.createWriteStream(newPath);

    readStream.on('error', callback);
    writeStream.on('error', callback);

    // Do not callback() upon "close" event on the readStream
    // readStream.on('close', function () {
    // Do instead upon "close" on the writeStream
    writeStream.on('close', function () {
        callback();
    });

    readStream.pipe(writeStream);
}

复制函数封装在Promise中:

function copy(oldPath, newPath) {
  return new Promise((resolve, reject) => {
    const readStream = fs.createReadStream(oldPath);
    const writeStream = fs.createWriteStream(newPath);

    readStream.on('error', err => reject(err));
    writeStream.on('error', err => reject(err));

    writeStream.on('close', function() {
      resolve();
    });

    readStream.pipe(writeStream);
  })

但是,请记住,如果目标文件夹不存在,文件系统可能会崩溃。

在下面URL的帮助下,您可以复制或移动您的文件CURRENT Source到Destination Source

https://coursesweb.net/nodejs/move-copy-file

/*********Moves the $file to $dir2 Start *********/ var moveFile = (file, dir2)=>{ //include the fs, path modules var fs = require('fs'); var path = require('path'); //gets file name and adds it to dir2 var f = path.basename(file); var dest = path.resolve(dir2, f); fs.rename(file, dest, (err)=>{ if(err) throw err; else console.log('Successfully moved'); }); }; //move file1.htm from 'test/' to 'test/dir_1/' moveFile('./test/file1.htm', './test/dir_1/'); /*********Moves the $file to $dir2 END *********/ /*********copy the $file to $dir2 Start *********/ var copyFile = (file, dir2)=>{ //include the fs, path modules var fs = require('fs'); var path = require('path'); //gets file name and adds it to dir2 var f = path.basename(file); var source = fs.createReadStream(file); var dest = fs.createWriteStream(path.resolve(dir2, f)); source.pipe(dest); source.on('end', function() { console.log('Succesfully copied'); }); source.on('error', function(err) { console.log(err); }); }; //example, copy file1.htm from 'test/dir_1/' to 'test/' copyFile('./test/dir_1/file1.htm', './test/'); /*********copy the $file to $dir2 END *********/

使用rename函数:

fs.rename(getFileName, __dirname + '/new_folder/' + getFileName); 

在哪里

getFilename = file.extension (old path)
__dirname + '/new_folder/' + getFileName

假设您希望保持文件名不变。

fs-extra模块允许你用它的move()方法来做这件事。我已经实现了它,它工作得很好,如果你想完全移动一个文件从一个目录到另一个-即。从源目录中删除文件。应该适用于大多数基本情况。

var fs = require('fs-extra')

fs.move('/tmp/somefile', '/tmp/does/not/exist/yet/somefile', function (err) {
 if (err) return console.error(err)
 console.log("success!")
})

fs。Rename在同步版本中也可用:

fs.renameSync(oldPath, newPath)