How to show user-friendly error page in browser when runtime exception is thrown by servlet?

Question

I\'m developing web-application with JSF. I tested it as I was able to but from time to time runtime exceptions are thrown.

So, how to redirect user to special error

Answer 1

    If you use java config in spring, you can follow,

   @Configuration
   public class ExcpConfig {

    @Bean(name = "simpleMappingExceptionResolver")
    public SimpleMappingExceptionResolver simpleMappingExceptionResolver() {
        SimpleMappingExceptionResolver resolver= new SimpleMappingExceptionResolver();

        Properties mappings = new Properties();
        resolver.setExceptionMappings(mappings); // None by default
        resolver.setExceptionAttribute("ErrorOccurred"); // Default is "exception"
        resolver.setDefaultErrorView("500"); // 500.jsp
        return r;
    }

}