我应该关闭StringReader吗？ [英] Should I close a StringReader?

问题描述

我使用 StringReader 将字符串转换为可以上传到SFTP服务器的字符串（它需要一个流）。之后关闭 StringReader 有什么意义吗？据我所知，它只是将字符串设置为 null ...

I use a StringReader to turn a string into something I can upload to an SFTP server (it takes a stream). Is there any point in closing that StringReader afterwards? As far as I can see in the source it just sets the string to null...

我可以这样做，但因为close方法被标记为抛出一个 IOException 而且所有我必须将它包装在try catch中并且代码最终看起来比看起来更糟糕它可能需要。

I could just do it, but since the close method is marked as throwing an IOException and all I have to wrap it in a try catch and the code just ends up looking a lot more horrible than it perhaps needs to be.

推荐答案

如果你知道你正在处理一个 StringReader 你将丢弃，我认为没有理由关闭它。在你关闭它之后我无法想象你有什么理由持有它的引用，所以对于设置为 null 的字符串来说垃圾没有真正的好处采集。如果您创建的方法需要 Reader ，那么关闭它可能是有意义的，因为您不知道基础类型。

If you know you're dealing with a StringReader that you'll be throwing away, I don't see any reason to close it. I can't imagine any reason you'd be holding a reference to it after you'd close it, so there's no real benefit to the string being set to null for garbage collection. If you were creating a method that takes a Reader then it might make sense to close it since you don't know the underlying type.

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