无法使用FTPClient node.js模块上传两个或更多文件

Question

我使用node和node-ftp模块。我需要上传两个文件到另一个服务器，我可以上传一个文件，但当我尝试上传两个文件时，它抛回和错误。

根据他们的api，这是用于发送文件的代码

var fs = require('fs');
conn.put(fs.createReadStream('/var/www/videoComplete/'+ videoID +'.flv'), '/home/wowza/content/'+ videoID +'.flv', function(e) {
  console.log(fileName + '.flv uploaded to Streaming Server :)');
  conn.end();
});

它工作得很好，但是如果我想做两个文件，我假设我必须重复这个函数，但它不会工作。有人知道如何使用FTPClient发送两个或多个文件吗

下面是我正在尝试执行的代码

conn = new FTPClient({ host: 'serverIP' });
conn.on('connect', function() {
  conn.auth('user', 'pass', function(e) {
    if (e) throw e;
    var fs = require('fs');

    conn.put(fs.createReadStream('/var/www/ce-videoComplete/'+ videoID +'.flv'), '/home/wowza/content/'+ videoID +'.flv', function(e) {
      console.log(fileName + '.flv uploaded to Streaming Server :)');
      conn.end();
    });

    conn.put(fs.createReadStream('/var/www/ce-thumbnails/'+ videoID +'.jpg'), '/var/www/html/thumbnails/'+ videoID +'.jpg', function(e) {
      console.log(fileName + '.jpg uploaded to Streaming Server :)');
      conn.end();
    });

  });
});
conn.connect();

更新:我也试过了，但它不能再次连接。

conn.put(fs.createReadStream('/var/www/ce-videoComplete/'+ videoID +'.flv'), '/home/wowza/content/'+ videoID +'.flv', function(e) {
  console.log(fileName + '.flv uploaded to Streaming Server :)');
  conn.end();

  conn.put(fs.createReadStream('/var/www/ce-thumbnails/'+ videoID +'.jpg'), '/var/www/html/thumbnails/'+ videoID +'.jpg', function(e) {
    console.log(fileName + '.jpg uploaded to Streaming Server :)');
    conn.end();
  });
});

Answer 1

在两个文件连续上传之前，不要结束连接：

conn.put(fs.createReadStream('/var/www/ce-videoComplete/'+ videoID +'.flv'), 
    '/home/wowza/content/'+ videoID +'.flv',
    function(e) {
        console.log(fileName + '.flv uploaded to Streaming Server :)');

        conn.put(fs.createReadStream('/var/www/ce-thumbnails/'+ videoID +'.jpg'),
            '/var/www/html/thumbnails/'+ videoID +'.jpg', 
            function(e) {
                console.log(fileName + '.jpg uploaded to Streaming Server :)');
                // Now that both files are uploaded, end the connection.
                conn.end();
            });  
        });
    }
);

Answer 2

我是FTPimp的作者，与任何其他Node FTP模块不同，FTPimp有一个专有的队列，可以异步和顺序地运行所有东西，所以你可以通过以下方式避免回调地狱和耦合依赖：

FTPimp.put

ftp.put(['/var/www/ce-videoComplete/'+ videoID +'.flv', '/home/wowza/content/'+ videoID +'.flv'], function (err, filename) {
    console.log(fileName + 'uploaded to Streaming Server :)');
});
ftp.put(['var/www/ce-thumbnails/'+ videoID +'.jpg', '/var/www/html/thumbnails/'+ videoID +'.jpg'], function(err, filename) {
    console.log(fileName + ' uploaded to Streaming Server :)');
    ftp.quit();
});

和由于FTPimp.put()将文件名传递给回调函数，因此您的日志也会更简单一些:)