Confirmation messages displayed for 'Add, edit, or update' actions

src/main/java/org/springframework/samples/petclinic/PetClinicApplication.java

@@ -18,7 +18,11 @@ package org.springframework.samples.petclinic;
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.ImportRuntimeHints;
+import org.springframework.web.servlet.i18n.SessionLocaleResolver;
+
+import java.util.Locale;
 
 /**
  * PetClinic Spring Boot Application.

src/main/java/org/springframework/samples/petclinic/owner/OwnerController.java

@@ -17,7 +17,7 @@ package org.springframework.samples.petclinic.owner;
 
 import java.util.List;
 import java.util.Map;
-
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.PageRequest;
 import org.springframework.data.domain.Pageable;
@@ -34,6 +34,7 @@ import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.servlet.ModelAndView;
 
 import jakarta.validation.Valid;
+import org.springframework.web.servlet.mvc.support.RedirectAttributes;
 
 /**
  * @author Juergen Hoeller
@@ -70,12 +71,14 @@ class OwnerController {
 	}
 
 	@PostMapping("/owners/new")
-	public String processCreationForm(@Valid Owner owner, BindingResult result) {
+	public String processCreationForm(@Valid Owner owner, BindingResult result, RedirectAttributes redirectAttributes) {
 		if (result.hasErrors()) {
+			redirectAttributes.addFlashAttribute("error", "There was an error in creating the owner.");
 			return VIEWS_OWNER_CREATE_OR_UPDATE_FORM;
 		}
 
 		this.owners.save(owner);
+		redirectAttributes.addFlashAttribute("message", "New Owner Created");
 		return "redirect:/owners/" + owner.getId();
 	}
 
@@ -133,14 +136,16 @@ class OwnerController {
 	}
 
 	@PostMapping("/owners/{ownerId}/edit")
-	public String processUpdateOwnerForm(@Valid Owner owner, BindingResult result,
-			@PathVariable("ownerId") int ownerId) {
+	public String processUpdateOwnerForm(@Valid Owner owner, BindingResult result, @PathVariable("ownerId") int ownerId,
+										 RedirectAttributes redirectAttributes) {
 		if (result.hasErrors()) {
+			redirectAttributes.addFlashAttribute("error", "There was an error in updating the owner.");
 			return VIEWS_OWNER_CREATE_OR_UPDATE_FORM;
 		}
 
 		owner.setId(ownerId);
 		this.owners.save(owner);
+		redirectAttributes.addFlashAttribute("message", "Owner Values Updated");
 		return "redirect:/owners/{ownerId}";
 	}
 

src/main/java/org/springframework/samples/petclinic/owner/PetController.java

@@ -31,6 +31,7 @@ import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 
 import jakarta.validation.Valid;
+import org.springframework.web.servlet.mvc.support.RedirectAttributes;
 
 /**
  * @author Juergen Hoeller
@@ -98,7 +99,7 @@ class PetController {
 	}
 
 	@PostMapping("/pets/new")
-	public String processCreationForm(Owner owner, @Valid Pet pet, BindingResult result, ModelMap model) {
+	public String processCreationForm(Owner owner, @Valid Pet pet, BindingResult result, ModelMap model, RedirectAttributes redirectAttributes) {
 		if (StringUtils.hasText(pet.getName()) && pet.isNew() && owner.getPet(pet.getName(), true) != null) {
 			result.rejectValue("name", "duplicate", "already exists");
 		}
@@ -115,18 +116,19 @@ class PetController {
 		}
 
 		this.owners.save(owner);
+		redirectAttributes.addFlashAttribute("message", "New Pet has been Added");
 		return "redirect:/owners/{ownerId}";
 	}
 
 	@GetMapping("/pets/{petId}/edit")
-	public String initUpdateForm(Owner owner, @PathVariable("petId") int petId, ModelMap model) {
+	public String initUpdateForm(Owner owner, @PathVariable("petId") int petId, ModelMap model,RedirectAttributes redirectAttributes) {
 		Pet pet = owner.getPet(petId);
 		model.put("pet", pet);
 		return VIEWS_PETS_CREATE_OR_UPDATE_FORM;
 	}
 
 	@PostMapping("/pets/{petId}/edit")
-	public String processUpdateForm(@Valid Pet pet, BindingResult result, Owner owner, ModelMap model) {
+	public String processUpdateForm(@Valid Pet pet, BindingResult result, Owner owner, ModelMap model,RedirectAttributes redirectAttributes) {
 
 		String petName = pet.getName();
 
@@ -150,6 +152,7 @@ class PetController {
 
 		owner.addPet(pet);
 		this.owners.save(owner);
+		redirectAttributes.addFlashAttribute("message", "Pet details has been edited");
 		return "redirect:/owners/{ownerId}";
 	}
 

src/main/java/org/springframework/samples/petclinic/owner/VisitController.java

@@ -27,6 +27,7 @@ import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.PostMapping;
 
 import jakarta.validation.Valid;
+import org.springframework.web.servlet.mvc.support.RedirectAttributes;
 
 /**
  * @author Juergen Hoeller
@@ -81,13 +82,14 @@ class VisitController {
 	// called
 	@PostMapping("/owners/{ownerId}/pets/{petId}/visits/new")
 	public String processNewVisitForm(@ModelAttribute Owner owner, @PathVariable int petId, @Valid Visit visit,
-			BindingResult result) {
+									  BindingResult result, RedirectAttributes redirectAttributes) {
 		if (result.hasErrors()) {
 			return "pets/createOrUpdateVisitForm";
 		}
 
 		owner.addVisit(petId, visit);
 		this.owners.save(owner);
+		redirectAttributes.addFlashAttribute("message", "Your vist has been boked");
 		return "redirect:/owners/{ownerId}";
 	}
 

src/main/resources/templates/owners/ownerDetails.html

@@ -8,6 +8,16 @@
   
     <h2>Owner Information</h2>
 
+    <div th:if="${message}" class="alert alert-success" id="success-message">
+      <span th:text="${message}"></span>
+    </div>
+
+    <div th:if="${error}" class="alert alert-danger" id="error-message">
+      <span th:text="${error}"></span>
+    </div>
+
+
+
 
     <table class="table table-striped" th:object="${owner}">
       <tr>
@@ -73,7 +83,20 @@
       </tr>
   
     </table>
+    <script>
+    // Function to hide the success and error messages after 3 seconds
+    function hideMessages() {
+        setTimeout(function() {
+            document.getElementById("success-message").style.display = "none";
+            document.getElementById("error-message").style.display = "none";
+        }, 3000); // 3000 milliseconds (3 seconds)
+    }
+
+    // Call the function to hide messages
+    hideMessages();
+</script>
 
   </body>
 
+
 </html>