是否可以在java中捕获内存异常？ [英] Is it possible to catch out of memory exception in java?

问题描述

我正在开发一个需要大量内存的程序，而当内存不足异常发生时，我想捕获。我听说这是不可能做的，但如果这方面有任何发展，好奇。

I'm developing a program that would require huge amount of memory, and I want to catch when out-of-memory exception happens. I had heard this is not possible to do, but curious if there is any development on this end.

推荐答案

这不是例外;这是一个错误： java.lang.OutOfMemoryError

It's not an exception; it's an error: java.lang.OutOfMemoryError

您可以从Throwable下载：

You can catch it as it descends from Throwable:

try {
    // create lots of objects here and stash them somewhere
} catch (OutOfMemoryError E) {
    // release some (all) of the above objects
}

然而，除非你在做一些比较具体的东西一个特定的代码部分，例如）你可能无法抓住它，因为你不知道从哪里被抛出。

However, unless you're doing some rather specific stuff (allocating tons of things within a specific code section, for example) you likely won't be able to catch it as you won't know where it's going to be thrown from.

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