自定義異常,實作異常鍊的功能
1.package com.min;
public class DrunkException extends Exception{
public DrunkException(){
}
public DrunkException(String message){
super(message);
}
}
2.
package com.min;
public class ChainTest {
public static void main(String[] args) {
ChainTest ct=new ChainTest();
try{ct.test2();
}catch(Exception e){
e.printStackTrace();
}
}
public void test1() throws DrunkException{
throw new DrunkException("喝酒别開車!!!");
}
public void test2(){
try{
test1();
}catch(DrunkException e){
RuntimeException newExc=new RuntimeException("司機一滴酒,親人兩行淚");
newExc.initCause(e);
throw newExc;
}
}
}
java.lang.RuntimeException: 司機一滴酒,親人兩行淚
at com.min.ChainTest.test2(ChainTest.java:21)
at com.min.ChainTest.main(ChainTest.java:7)
Caused by: com.min.DrunkException: 喝酒别開車!!!
at com.min.ChainTest.test1(ChainTest.java:14)
at com.min.ChainTest.test2(ChainTest.java:19)
… 1 more