在 try catch 中使用 Throwable 和 Exception 的区别 [英] Difference between using Throwable and Exception in a try catch

问题描述

有时，我看到

try {

} catch(Throwable e) {

}

有时

try {

} catch(Exception e) {

}

有什么区别?

推荐答案

通过捕获 Throwable，它包含了子类 Error 的内容.您通常不应该这样做，除非可能是在线程的最高全部捕获"级别，您想在其中记录或以其他方式处理可能出错的所有事情.在框架类型的应用程序(例如应用程序服务器或测试框架)中更典型，它可以运行未知代码并且不应受到该代码出错的任何影响，如尽可能多.

By catching Throwable it includes things that subclass Error. You should generally not do that, except perhaps at the very highest "catch all" level of a thread where you want to log or otherwise handle absolutely everything that can go wrong. It would be more typical in a framework type application (for example an application server or a testing framework) where it can be running unknown code and should not be affected by anything that goes wrong with that code, as much as possible.

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