Question

我正在开发一个上传跟踪器（进度条等）。

所以对于我的前端我使用jQuery文件上传。后端上传是使用单独的工作人员完成的，我使用Redis pub / sub。所以要连接前端和后端，我使用Node.JS（socket.io）。

jQuery文件上传有一个＆＃34; done＆＃34;表示将文件传送到服务器的回调函数。

这对于单个文件非常有效。

当我尝试同时上传2个以上的文件时出现问题。＆＃34;完成＆＃34;回调函数被连接到套接字监听器2次以上（如果我错了，请纠正我），作为输出我得到这样的东西：

579 " - progress: " 8.333333333333334
580 " - progress: " 8.333333333333334 
579 " - progress: " 16.666666666666668 
580 " - progress: " 16.666666666666668 
579 " - progress: " 25 
580 " - progress: " 25
....
579 " -> upload is finished!" 
580 " -> upload is finished!"

这是上传2个文件的示例。这根本没有任何意义，因为它们只能一个接一个地处理。

所以看起来应该是这样的：

579 " - progress: " 8.333333333333334
579 " - progress: " 16.666666666666668 
579 " - progress: " 25
....

579 " -> upload is finished!"
580 " - progress: " 8.333333333333334
580 " - progress: " 16.666666666666668
....
580 " -> upload is finished!"

Node.js服务器端工作正常。这是一个日志：

RECEIVED  progress  FROM  upload-579
RECEIVED  progress  FROM  upload-579
RECEIVED  progress  FROM  upload-579
RECEIVED  progress  FROM  upload-579
RECEIVED  progress  FROM  upload-579
RECEIVED  progress  FROM  upload-579
RECEIVED  progress  FROM  upload-579
RECEIVED  progress  FROM  upload-579
RECEIVED  progress  FROM  upload-579
RECEIVED  progress  FROM  upload-579
RECEIVED  progress  FROM  upload-579
RECEIVED  done  FROM  upload-579
RECEIVED  progress  FROM  upload-580
RECEIVED  progress  FROM  upload-580
RECEIVED  progress  FROM  upload-580
RECEIVED  progress  FROM  upload-580
RECEIVED  progress  FROM  upload-580
RECEIVED  progress  FROM  upload-580
RECEIVED  progress  FROM  upload-580
RECEIVED  progress  FROM  upload-580
RECEIVED  progress  FROM  upload-580
RECEIVED  progress  FROM  upload-580
RECEIVED  progress  FROM  upload-580
RECEIVED  done  FROM  upload-580

它收到来自Redis频道的消息，并向客户端发出适当的消息。我认为问题存在于客户端，但我无法弄清楚如何修改代码以获得我想要的东西。可以做些什么来将它们彼此分开吗？

P.S

Answer 1

客户端的套接字事件回调将触发来自Node.js的任何发出消息。这就是您看到重复日志消息的原因。在套接字消息中发送附加数据，或附加唯一事件。

Node.JS单个套接字，多个事件（上传）

1 个答案: