使用Java自动重新加载更改的文件 [英] Auto-reload changed files in Java

问题描述

我有很多配置文件可以修改应用程序的行为。我希望能够进行更改，并在保存文件时立即反映到应用程序中。有没有一个Java库来帮助这个？

我可以简单地保留一个文件列表与他们的时间戳，并不断检查后台线程时间戳的变化。似乎不太难，但也许有一个更有效的方法来做到这一点？自定义触发器，当某些属性已经改变会很好。

我使用Spring 3.1，是否有一个内置的机制或解决方案，很好地与春天？显然，JDK7现在通过它的 Watch Service API ：大多数文件系统实现都具有对文件更改通知的原生支持。但是，如果文件系统不支持这种机制，Watch服务将轮询文件系统，等待事件发生。所以，这将是我转移到JDK7的动力。

http://commons.apache.org/配置/ userguide / howto_filebased.html

I have a lot of configuration files that modify how my application behaves. I want to be able to make a change and it gets reflected in the application right away when saving the file. Is there a Java library to help with this?

I could simply keep a list of files with their timestamps and continuously check in a background thread when a timestamp changes. Doesn't seem too difficult, but maybe there's a more efficient way to do this? Custom triggers when certain properties have changed would be nice.

I'm using Spring 3.1, is there a built-in mechanism or solution which works nicely with Spring?

UPDATE: Apparently JDK7 now includes this functionality through its Watch Service API: "Most file system implementations have native support for file change notification. The Watch Service API takes advantage of this support where available. However, when a file system does not support this mechanism, the Watch Service will poll the file system, waiting for events." So this'll be my motivation to migrate to JDK7.

解决方案

Edited:

http://commons.apache.org/configuration/userguide/howto_filebased.html

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