Complete

src/main/java/io/zipcoder/crudapp/Person.java

@@ -0,0 +1,50 @@
+package io.zipcoder.crudapp;
+import javax.persistence.*;
+
+
+@Entity
+public class Person {
+    @Id
+    @GeneratedValue
+    private Long id;
+    private String firstName;
+    private String lastName;
+
+    public Person() {
+    }
+
+    public Person(Long id, String firstName, String lastName) {
+        this.id = id;
+        this.firstName = firstName;
+        this.lastName = lastName;
+    }
+
+    public Person(String firstName, String lastName) {
+        this(null, firstName, lastName);
+    }
+
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public void setFirstName(String firstName) {
+        this.firstName = firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public void setLastName(String lastName) {
+        this.lastName = lastName;
+    }
+}

src/main/java/io/zipcoder/crudapp/PersonController.java

@@ -0,0 +1,48 @@
+package io.zipcoder.crudapp;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.beans.factory.annotation.Autowired;
+
+
+@Controller
+public class PersonController {
+
+    private PersonService service;
+
+    @Autowired
+    public PersonController(PersonService service) {
+        this.service = service;}
+
+    @GetMapping("/people")
+    public ResponseEntity<Iterable<Person>> showAll() {
+        return new ResponseEntity<>(service.showAll(), HttpStatus.OK);
+    }
+
+    @GetMapping("/people/{id}")
+    public ResponseEntity<Person> show(@PathVariable Long id) {
+        return new ResponseEntity<>(service.show(id), HttpStatus.OK);
+    }
+
+    @PostMapping("/people")
+    public ResponseEntity<Person> create(@RequestBody Person person) {
+        return new ResponseEntity<>(service.create(person), HttpStatus.CREATED);
+    }
+
+    @PutMapping("/people/{id}")
+    public ResponseEntity<Person> update(@PathVariable Long id, @RequestBody Person person) {
+        return new ResponseEntity<>(service.update(id, person), HttpStatus.OK);
+    }
+
+    @DeleteMapping("/people/{id}")
+    public ResponseEntity<Boolean> destroy(@PathVariable Long id) {
+        return new ResponseEntity<>(service.delete(id), HttpStatus.OK);
+    }
+}

src/main/java/io/zipcoder/crudapp/PersonRepository.java

@@ -0,0 +1,9 @@
+package io.zipcoder.crudapp;
+
+import org.springframework.data.repository.CrudRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface PersonRepository extends CrudRepository<Person, Long> {
+
+}

src/main/java/io/zipcoder/crudapp/PersonService.java

@@ -0,0 +1,33 @@
+package io.zipcoder.crudapp;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+@Service
+public class PersonService {
+
+    @Autowired
+    private PersonRepository repository;
+
+    public PersonService(PersonRepository repository){this.repository = repository;}
+
+    public Iterable<Person> showAll() {
+        return repository.findAll();}
+
+    public Person show(Long id){
+        return repository.findOne(id);} //todo something to do with get method
+
+    public Person create(Person person) {
+        return repository.save(person);}
+
+    public Person update(Long id, Person newPersonData) {
+        Person originalPerson = repository.findOne(id); //todo something to do with get method
+        originalPerson.setFirstName(newPersonData.getFirstName());
+        originalPerson.setLastName(newPersonData.getLastName());
+        return repository.save(originalPerson);
+    }
+
+    public Boolean delete(Long id) {
+        repository.delete(id);
+        return true;
+    }
+}