AJAX进度条 - 轮询，彗星？ [英] AJAX Progress Bar - Polling, Comet?

问题描述

我想就如何实现以下一些建议：

I would like some advice on how to implement the following:

我想提出我的用户意识到这一点是通过AJAX我的服务器上运行的任务的进度。我的服务器运行的PHP脚本下载使用popen函数的通过shell命令的文件。它定期回声/打印正在发生的事情。我想使用AJAX和present给用户捕获该输出。

I would like to make my users aware of the progress of a task that is running on my server via AJAX. My server runs a PHP script that downloads a file via shell command using the popen function. It periodically echos/prints what is happening. I would like to capture this output using AJAX and present it to the user.

有人告诉我，在另外一个问题，我可能需要使用轮询或彗星的？我真的AP preciate如何在最简单，最有效的方式实现这一目标的任何帮助或指导。但愿，我仍然可以使用jQuery的。

I was told in another question that I might need to make use of polling or comet? I would really appreciate any help or guidance on how to achieve this in the simplest and most efficient way. Hopefully, I can still make use of JQuery.

感谢大家抽出时间来阅读此。

Thank you all for taking the time to read this.

P.S。我能走到这一步，非常感谢给计算器社区：）

推荐答案

这听起来像一个伟大的机会，的Ajax长轮询，这是一般彗星实现使用的是无数的技术之一。有堆栈溢出另一个问题的样品code。

This sounds like a great opportunity for Ajax long polling, which is one of the myriad techniques used in general Comet implementations. There's another question on Stack Overflow with sample code.

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