捕捉OutOfMemoryError [英] Catching OutOfMemoryError

问题描述

在Java中是否有任何捕捉内存不足错误(java.lang.OutOfMemoryError)的地方?

Is there any point catching an out of memory error (java.lang.OutOfMemoryError) in Java?

推荐答案

是.以下是一些可能有意义的示例:

Yes. Here are a few examples where it could make sense:

• 如果您想通过正常关闭程序
来处理它
• 如果您想向用户显示问题或记录错误
• 根据您的设计，您甚至可以清理内存并恢复工作状态

• if you want to handle it by gracefully closing your program
• if you want to display the problem to the user or log the error
• depending on your design, you might even be able to clear up memory and restore a working state

但是，请注意，通常情况下(除非您处于一次要分配大量内存的位置)，对于这些情况，您可能不会特别捕获OutOfMemoryError，而是在主入口点的顶部一直执行catch Throwable.

However, note that normally (unless you're at a spot where you'll be allocating tons of memory at once), you probably wouldn't specifically catch OutOfMemoryError for these cases, but rather do a catch Throwable all the way at the top in your main entry point.

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