public class Student { checkAge (Student student) { try { if (student.getAge() > 18 ) { throw new CustomException("Student is older than 18 years."); } } catch (CustomException e) { handleException(e); } } public class HandleException { public static sendToErrorReport (CustomException customException) { //trying to do something like this, but the below code throws an error. customException.setMessage(customException.getMessage() +" ; Student -> " + customException.getStudent().getStudentName); }}我已經(jīng)創(chuàng)建了一個自定義類來處理我的項(xiàng)目中發(fā)生的異常。我的要求是更改異常消息并將一些數(shù)據(jù)附加到異常消息并將其傳遞給我的自定義類。所以基本上我需要在設(shè)置異常消息后對其進(jìn)行編輯。有什么辦法可以做到這一點(diǎn)？
3 回答
繁華開滿天機(jī)
TA貢獻(xiàn)1816條經(jīng)驗(yàn) 獲得超4個贊
這是擴(kuò)展 RuntimeException 類的完整 CustomException 類。您可以定義代碼和消息。
public class CustomException extends RuntimeException {
private String code;
private String message;
public CustomException() {
super();
}
public CustomException(Exception e) {
super(e);
}
public CustomException(String code, String message, Exception e) {
super(message, e);
this.code = code;
}
}
一只名叫tom的貓
TA貢獻(xiàn)1906條經(jīng)驗(yàn) 獲得超3個贊
你可以覆蓋類getMessage的方法Exception
class CustomException extends java.lang.Exception{
@Override
public String getMessage(){
return super.getMessage() + "- My Message";
}
}
倚天杖
TA貢獻(xiàn)1828條經(jīng)驗(yàn) 獲得超3個贊
在您的代碼中拋出異常時
try{
//Some code here
}catch(Exception e){
throw new CustomeException("Your text here")
}
當(dāng)您在其他地方捕獲 CustomeException 時，您可以對其進(jìn)行修改。
try{
//Some code here
}catch(CustomException e){
String message = e.getMessage();
//Do stuff with previous message
throw new Custom2Exception("Your next text here")
}
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