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如何在java处理大量例外?
原标题:How to handle a great number of exceptions in java?
  • 时间:2010-12-27 05:16:55
  •  标签:
  • android

我有一些法典。 因此,有可能获得许多例外。 我怀疑的是,为了处理所有这些例外,我不得不为每一种例外写上选区。 是不是有效的。 除使用关键词外, 如果还有其他解决办法,请建议我这样做。 任何答复都将受到赞赏。

预 收

最佳回答

这取决于你试图赶上哪类例外。 一切能够被扔进去的东西 可浏览,这样你就可以捕获everything。 iii

} catch (Throwable t) {

包括时间错误和所有错误。 正如Amjad提到的那样,你可以缩小这一差距。

} catch (Exception e) {

只是排出例外及其次类。

The problem with both of these is that they catch too much; you can work around that but you risk catching an important problem and then not handling it.

如果你有少数不同的例外,你可能最好放弃例外。

} catch (Exception1 e) { // do something
} catch (Exception2 e) { // do something else

如果是你自己的例外,你可以选择另一种选择:使你自己的例外等级分级。

class MyExceptions extends Exception { /* ... */ }
class MyExceptionSubtypeA extends MyException { /* ... */ }
class MyExceptionSubtypeASubsub1 extends MyExceptionSubtypeA { /* ... */ }

现在,你可以选择哪类班子。

} catch (MyExceptionSubtypeA sa) {

which will catch both MyExceptionSubtypeA and MyExceptionSubtypeASubsub1.

问题回答

使用一般例外情况<代码>Exception

try{
//your code here
}
catch(Exception e){
//handle exception
}

然而,这并不罕见:





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