Spring Framework example source code file (PetSitesEditController.java)

This example Spring Framework source code file (PetSitesEditController.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Spring Framework tags/keywords

actionresponse, actionresponse, bindingresult, controller, edit, modelattribute, petsite, properties, properties, requestmapping, requestmapping, sessionstatus, string, string, util

The Spring Framework PetSitesEditController.java source code

package org.springframework.samples.petportal.portlet;

import java.util.Properties;

import javax.portlet.ActionResponse;

import org.springframework.samples.petportal.domain.PetSite;
import org.springframework.samples.petportal.validation.PetSiteValidator;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.SessionAttributes;
import org.springframework.web.bind.support.SessionStatus;

/**
 * This Controller simply populates the model with the current map
 * of 'petSites' and then forwards to the view from which a user can
 * add to or delete from the sites. The HandlerMapping maps to this 
 * Controller when in EDIT mode while no valid 'action' parameter
 * is set. See 'WEB-INF/context/petsites-portlet.xml' for details.
 * 
 * @author Mark Fisher
 * @author Juergen Hoeller
 */
@Controller
@RequestMapping("EDIT")
@SessionAttributes("site")
public class PetSitesEditController {

	private Properties petSites;
	
	public void setPetSites(Properties petSites) {
		this.petSites = petSites;
	}

	@ModelAttribute("petSites")
	public Properties getPetSites() {
		return this.petSites;
	}

	@RequestMapping  // default (action=list)
	public String showPetSites() {
		return "petSitesEdit";
	}

	@RequestMapping(params = "action=add")  // render phase
	public String showSiteForm(Model model) {
		// Used for the initial form as well as for redisplaying with errors.
		if (!model.containsAttribute("site")) {
			model.addAttribute("site", new PetSite());
		}
		return "petSitesAdd";
	}

	@RequestMapping(params = "action=add")  // action phase
	public void populateSite(
			@ModelAttribute("site") PetSite petSite, BindingResult result, SessionStatus status, ActionResponse response) {

		new PetSiteValidator().validate(petSite, result);
		if (!result.hasErrors()) {
			this.petSites.put(petSite.getName(), petSite.getUrl());
			status.setComplete();
			response.setRenderParameter("action", "list");
		}
	}

	@RequestMapping(params = "action=delete")
	public void removeSite(@RequestParam("site") String site, ActionResponse response) {
		this.petSites.remove(site);
		response.setRenderParameter("action", "list");
	}

}