Part 3 finished, practicing testing

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

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+package io.zipcoder.crudapp;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+
+@Entity
+public class Person {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Integer id;
+
+
+    private String firstName, lastName;
+
+    public Integer getId() {
+        return 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

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+package io.zipcoder.crudapp;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@RestController
+public class PersonController {
+
+    @Autowired
+    PersonRepository personRepository;
+
+    @RequestMapping(value = "/people", method = RequestMethod.POST)
+    public ResponseEntity<?> createPerson(@RequestBody Person p) {
+        Person p1 = personRepository.save(p);
+        return new ResponseEntity<>(p1, HttpStatus.CREATED);
+    }
+
+    @RequestMapping(value = "/people/{id}", method = RequestMethod.GET)
+    public ResponseEntity<?> getPerson(@PathVariable int id) {
+        Person p1 = personRepository.findOne(id);
+        if (p1 != null) {
+            return new ResponseEntity<>(p1, HttpStatus.OK);
+        }
+        return new ResponseEntity<>(null, HttpStatus.NOT_FOUND);
+    }
+
+    @RequestMapping(value = "/people", method = RequestMethod.GET)
+    public ResponseEntity<?> getPersonList() {
+        List<Person> people = new ArrayList<>();
+        personRepository.findAll().forEach(people::add);
+        return new ResponseEntity<>(people, HttpStatus.OK);
+    }
+
+    @RequestMapping(value = "/people/{id}", method = RequestMethod.PUT)
+    public ResponseEntity<?> updatePerson(Person p) {
+        if (getPerson(p.getId())!= null) {
+            p = personRepository.save(p);
+            return new ResponseEntity<>(p, HttpStatus.OK);
+        } else {
+            createPerson(p);
+            return new ResponseEntity<>(p, HttpStatus.CREATED);
+        }
+    }
+
+    @RequestMapping(value = "/people/{id}", method = RequestMethod.DELETE)
+    public ResponseEntity<?> deletePerson(int id) {
+        personRepository.delete(id);
+        return new ResponseEntity<>(HttpStatus.NO_CONTENT);
+    }
+}

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

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+package io.zipcoder.crudapp;
+
+import org.springframework.data.repository.CrudRepository;
+
+public interface PersonRepository extends CrudRepository<Person, Integer> {
+}