https://ericjin.com/blog/tags/java/ Recent content in java on Eric Jin Hugo -- gohugo.io en-us Sun, 23 Dec 2018 00:00:00 +0000 https://ericjin.com/blog/TIJ--Catch-Exception/ Sun, 23 Dec 2018 00:00:00 +0000 https://ericjin.com/blog/TIJ--Catch-Exception/ Error handing with Exceptions java 中的异常处理有两种情况会使异常丢失 try-finnaly 使用 public class LostMessage { public static void main(String[] args) { try { LostMessage lm = new LostMessage(); try { lm.f(); //ImportantException被抛出，直接进入finally } finally { lm.dispose(); //finally 中抛出HohunException,ImportantException 异常信息会丢失 } } catch (Exception e) { e.printStackTrace(); } } void f() throws ImportantException { throw new ImportantException(); } void dispose() throws HohunException { throw new HohunException(); } } try 后面直接跟 finally,如果 finally 中抛出另一个异常，try 中抛出的异常就丢失了。