How do I display database trigger errors on a web application through Payara5

问题

This is a standard error I receive for all Errors parsed from Database Triggers. I use Payara5 as the Application Server and Netbeans 8.2 IDE. In the instance on the picture, it was supposed to display "ID Number mandatory for applicants order that 18 years of age".

How do I make sure that the exact error as in the trigger, appears on the Web Application?

回答1:

Given your stacktrace it looks like you need to remove the ExceptionUtils.findRootException(ex).getMessage() and just use ex.getMessage() since the thrown topmost Exception already contains the message that you need.

I would try with the following code when an Exception is thrown:

catch (Exception ex) {
    JSFUtils.addMessageSessionError(
        ExceptionUtils.formatException(AdHocTools.getCurrentMethodName(),
        ex.getMessage());
}

However, ExceptionUtils.findRootException(ex).getMessage() might be there for a reason. There are cases where the topmost Exception is pretty general (e.g. an EJBException) and you really need to get to the root exception to get a meaningful message.

You could also try with this code which returns an SQLException if applicable and in other cases the root Exception.

catch (Exception ex) {
    Throwable rootCause = ex;
    while (rootCause.getCause() != null && rootCause.getCause() != rootCause) {
        if ( rootCause instanceof java.sql.SQLException ) {
            break;
        }
        rootCause = rootCause.getCause();
    }
    JSFUtils.addMessageSessionError(
        ExceptionUtils.formatException(AdHocTools.getCurrentMethodName(),
            rootCause.getMessage());
}

来源：https://stackoverflow.com/questions/59005635/how-do-i-display-database-trigger-errors-on-a-web-application-through-payara5

标签

java

sql

payara