valid service layer

src/main/java/org/sadtech/example/springvalidation/controller/PersonControllerNoValidation.java

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+package org.sadtech.example.springvalidation.controller;
+
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import lombok.RequiredArgsConstructor;
+import org.sadtech.example.springvalidation.dto.PersonDto;
+import org.sadtech.example.springvalidation.service.PersonService;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/api/no-valid/person")
+@Tag(name = "Пользователи системы 2", description = "Валидация на уровне сервиса")
+@RequiredArgsConstructor
+public class PersonControllerNoValidation {
+
+    private final PersonService personService;
+
+    @PostMapping
+    @Operation(summary = "Сохранение пользователя")
+    public ResponseEntity<String> save(@RequestBody PersonDto personDto) {
+        personService.save(personDto);
+        return ResponseEntity.ok("valid");
+    }
+
+}

src/main/java/org/sadtech/example/springvalidation/service/PersonService.java

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+package org.sadtech.example.springvalidation.service;
+
+import org.sadtech.example.springvalidation.dto.PersonDto;
+import org.springframework.stereotype.Service;
+import org.springframework.validation.annotation.Validated;
+
+import javax.validation.Valid;
+
+@Service
+@Validated
+public class PersonService {
+
+    public void save(@Valid PersonDto personDto) {
+        // do something
+    }
+
+}