Replace @RequestMapping by their corresponding shortcut @GetMapping and @PostMapping

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

@@ -15,22 +15,21 @@
  */
 package org.springframework.samples.petclinic.owner;
 
-import java.util.Collection;
-import java.util.Map;
-
-import javax.validation.Valid;
-
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.Model;
 import org.springframework.validation.BindingResult;
 import org.springframework.web.bind.WebDataBinder;
+import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.InitBinder;
 import org.springframework.web.bind.annotation.PathVariable;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.servlet.ModelAndView;
 
+import javax.validation.Valid;
+import java.util.Collection;
+import java.util.Map;
+
 /**
  * @author Juergen Hoeller
  * @author Ken Krebs
@@ -54,14 +53,14 @@ class OwnerController {
         dataBinder.setDisallowedFields("id");
     }
 
-    @RequestMapping(value = "/owners/new", method = RequestMethod.GET)
+    @GetMapping("/owners/new")
     public String initCreationForm(Map<String, Object> model) {
         Owner owner = new Owner();
         model.put("owner", owner);
         return VIEWS_OWNER_CREATE_OR_UPDATE_FORM;
     }
 
-    @RequestMapping(value = "/owners/new", method = RequestMethod.POST)
+    @PostMapping("/owners/new")
     public String processCreationForm(@Valid Owner owner, BindingResult result) {
         if (result.hasErrors()) {
             return VIEWS_OWNER_CREATE_OR_UPDATE_FORM;
@@ -71,13 +70,13 @@ class OwnerController {
         }
     }
 
-    @RequestMapping(value = "/owners/find", method = RequestMethod.GET)
+    @GetMapping("/owners/find")
     public String initFindForm(Map<String, Object> model) {
         model.put("owner", new Owner());
         return "owners/findOwners";
     }
 
-    @RequestMapping(value = "/owners", method = RequestMethod.GET)
+    @GetMapping("/owners")
     public String processFindForm(Owner owner, BindingResult result, Map<String, Object> model) {
 
         // allow parameterless GET request for /owners to return all records
@@ -102,14 +101,14 @@ class OwnerController {
         }
     }
 
-    @RequestMapping(value = "/owners/{ownerId}/edit", method = RequestMethod.GET)
+    @GetMapping("/owners/{ownerId}/edit")
     public String initUpdateOwnerForm(@PathVariable("ownerId") int ownerId, Model model) {
         Owner owner = this.owners.findById(ownerId);
         model.addAttribute(owner);
         return VIEWS_OWNER_CREATE_OR_UPDATE_FORM;
     }
 
-    @RequestMapping(value = "/owners/{ownerId}/edit", method = RequestMethod.POST)
+    @PostMapping("/owners/{ownerId}/edit")
     public String processUpdateOwnerForm(@Valid Owner owner, BindingResult result, @PathVariable("ownerId") int ownerId) {
         if (result.hasErrors()) {
             return VIEWS_OWNER_CREATE_OR_UPDATE_FORM;
@@ -126,7 +125,7 @@ class OwnerController {
      * @param ownerId the ID of the owner to display
      * @return a ModelMap with the model attributes for the view
      */
-    @RequestMapping("/owners/{ownerId}")
+    @GetMapping("/owners/{ownerId}")
     public ModelAndView showOwner(@PathVariable("ownerId") int ownerId) {
         ModelAndView mav = new ModelAndView("owners/ownerDetails");
         mav.addObject(this.owners.findById(ownerId));

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

@@ -15,21 +15,16 @@
  */
 package org.springframework.samples.petclinic.owner;
 
-import java.util.Collection;
-
-import javax.validation.Valid;
-
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.ui.ModelMap;
 import org.springframework.util.StringUtils;
 import org.springframework.validation.BindingResult;
 import org.springframework.web.bind.WebDataBinder;
-import org.springframework.web.bind.annotation.InitBinder;
-import org.springframework.web.bind.annotation.ModelAttribute;
-import org.springframework.web.bind.annotation.PathVariable;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.*;
+
+import javax.validation.Valid;
+import java.util.Collection;
 
 /**
  * @author Juergen Hoeller
@@ -70,7 +65,7 @@ class PetController {
         dataBinder.setValidator(new PetValidator());
     }
 
-    @RequestMapping(value = "/pets/new", method = RequestMethod.GET)
+    @GetMapping("/pets/new")
     public String initCreationForm(Owner owner, ModelMap model) {
         Pet pet = new Pet();
         owner.addPet(pet);
@@ -78,7 +73,7 @@ class PetController {
         return VIEWS_PETS_CREATE_OR_UPDATE_FORM;
     }
 
-    @RequestMapping(value = "/pets/new", method = RequestMethod.POST)
+    @PostMapping("/pets/new")
     public String processCreationForm(Owner owner, @Valid Pet pet, BindingResult result, ModelMap model) {
         if (StringUtils.hasLength(pet.getName()) && pet.isNew() && owner.getPet(pet.getName(), true) != null){
             result.rejectValue("name", "duplicate", "already exists");
@@ -93,14 +88,14 @@ class PetController {
         }
     }
 
-    @RequestMapping(value = "/pets/{petId}/edit", method = RequestMethod.GET)
+    @GetMapping("/pets/{petId}/edit")
     public String initUpdateForm(@PathVariable("petId") int petId, ModelMap model) {
         Pet pet = this.pets.findById(petId);
         model.put("pet", pet);
         return VIEWS_PETS_CREATE_OR_UPDATE_FORM;
     }
 
-    @RequestMapping(value = "/pets/{petId}/edit", method = RequestMethod.POST)
+    @PostMapping("/pets/{petId}/edit")
     public String processUpdateForm(@Valid Pet pet, BindingResult result, Owner owner, ModelMap model) {
         if (result.hasErrors()) {
             pet.setOwner(owner);

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

@@ -15,21 +15,16 @@
  */
 package org.springframework.samples.petclinic.owner;
 
-import java.util.Map;
-
-import javax.validation.Valid;
-
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.samples.petclinic.visit.Visit;
 import org.springframework.samples.petclinic.visit.VisitRepository;
 import org.springframework.stereotype.Controller;
 import org.springframework.validation.BindingResult;
 import org.springframework.web.bind.WebDataBinder;
-import org.springframework.web.bind.annotation.InitBinder;
-import org.springframework.web.bind.annotation.ModelAttribute;
-import org.springframework.web.bind.annotation.PathVariable;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.*;
+
+import javax.validation.Valid;
+import java.util.Map;
 
 /**
  * @author Juergen Hoeller
@@ -76,13 +71,13 @@ class VisitController {
     }
 
     // Spring MVC calls method loadPetWithVisit(...) before initNewVisitForm is called
-    @RequestMapping(value = "/owners/*/pets/{petId}/visits/new", method = RequestMethod.GET)
+    @GetMapping("/owners/*/pets/{petId}/visits/new")
     public String initNewVisitForm(@PathVariable("petId") int petId, Map<String, Object> model) {
         return "pets/createOrUpdateVisitForm";
     }
 
     // Spring MVC calls method loadPetWithVisit(...) before processNewVisitForm is called
-    @RequestMapping(value = "/owners/{ownerId}/pets/{petId}/visits/new", method = RequestMethod.POST)
+    @PostMapping("/owners/{ownerId}/pets/{petId}/visits/new")
     public String processNewVisitForm(@Valid Visit visit, BindingResult result) {
         if (result.hasErrors()) {
             return "pets/createOrUpdateVisitForm";

src/main/java/org/springframework/samples/petclinic/system/CrashController.java

@@ -16,6 +16,7 @@
 package org.springframework.samples.petclinic.system;
 
 import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestMethod;
 
@@ -29,7 +30,7 @@ import org.springframework.web.bind.annotation.RequestMethod;
 @Controller
 class CrashController {
 
-    @RequestMapping(value = "/oups", method = RequestMethod.GET)
+    @GetMapping("/oups")
     public String triggerException() {
         throw new RuntimeException(
                 "Expected: controller used to showcase what " + "happens when an exception is thrown");

src/main/java/org/springframework/samples/petclinic/system/WelcomeController.java

@@ -2,12 +2,12 @@ package org.springframework.samples.petclinic.system;
 
 
 import org.springframework.stereotype.Controller;
-import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.GetMapping;
 
 @Controller
 class WelcomeController {
 
-    @RequestMapping("/")
+    @GetMapping("/")
     public String welcome() {
         return "welcome";
     }

src/main/java/org/springframework/samples/petclinic/vet/VetController.java

@@ -15,13 +15,13 @@
  */
 package org.springframework.samples.petclinic.vet;
 
-import java.util.Map;
-
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
-import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.ResponseBody;
 
+import java.util.Map;
+
 /**
  * @author Juergen Hoeller
  * @author Mark Fisher
@@ -38,7 +38,7 @@ class VetController {
         this.vets = clinicService;
     }
 
-    @RequestMapping(value = { "/vets.html" })
+    @GetMapping("/vets.html")
     public String showVetList(Map<String, Object> model) {
         // Here we are returning an object of type 'Vets' rather than a collection of Vet
         // objects so it is simpler for Object-Xml mapping
@@ -48,7 +48,7 @@ class VetController {
         return "vets/vetList";
     }
 
-    @RequestMapping(value = { "/vets.json", "/vets.xml" })
+    @GetMapping({ "/vets.json", "/vets.xml" })
     public @ResponseBody Vets showResourcesVetList() {
         // Here we are returning an object of type 'Vets' rather than a collection of Vet
         // objects so it is simpler for JSon/Object mapping