Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package info.michaelchurch.arule.controllers; import info.michaelchurch.arule.services.ContactProcessor; import info.michaelchurch.arule.valueobject.Comment; import javax.inject.Inject; import javax.validation.Valid; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.validation.BindingResult; import org.springframework.web.bind.annotation.ExceptionHandler; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; /** * * @author michael */ @Controller public class ContactController { @Inject public ContactController(ContactProcessor contactProcessor) { this.contactProcessor = contactProcessor; } private ContactProcessor contactProcessor; @RequestMapping(method = RequestMethod.POST) public String Process(Model model, @Valid Comment comment, BindingResult result) { if (result.hasErrors()) { return "contact"; } if (contactProcessor.process(comment)) { model.addAttribute("verdict", "Success"); } else { model.addAttribute("verdict", "Failure"); } return "contact"; } @RequestMapping(method = RequestMethod.GET) public String loadForm(Model model) { model.addAttribute(new Comment()); return "contact"; } @ExceptionHandler(Exception.class) public String handleError() { return "error"; } }