Criando um CRUD

Clique com o botão direito em
controllers
new, Java Class
O nome do arquivo vai ser
PersonController
Insira o código abaixo

Arquivo: PersonController.java

package br.com.iatagan.controllers;

import br.com.iatagan.PersonServices;
import br.com.iatagan.model.Person;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@RestController
@RequestMapping("/person")
public class PersonController {

    @Autowired
    private PersonServices service;
    // private PersonServices service = new PersonServices();

    @RequestMapping(method = RequestMethod.GET,
            produces = MediaType.APPLICATION_JSON_VALUE
    )
    public List<Person> findAll() {
        return service.findAll();
    }

    @RequestMapping(value = "/{id}",
            method = RequestMethod.GET,
            produces = MediaType.APPLICATION_JSON_VALUE
    )
    public Person findById(@PathVariable("id") String id) {
        return service.findById(id);
    }

    @RequestMapping(
            method = RequestMethod.POST,
            consumes = MediaType.APPLICATION_JSON_VALUE,
            produces = MediaType.APPLICATION_JSON_VALUE
    )
    public Person create(@RequestBody Person person) {
        return service.create(person);
    }

    @RequestMapping(
            method = RequestMethod.PUT,
            consumes = MediaType.APPLICATION_JSON_VALUE,
            produces = MediaType.APPLICATION_JSON_VALUE
    )
    public Person update(@RequestBody Person person) {
        return service.update(person);
    }

    @RequestMapping(value = "/{id}",
            method = RequestMethod.DELETE
    )
    public void delete(@PathVariable("id") String id) {
        service.delete(id);
    }
}

Clique com o botão direito em
model
new, Java Class
O nome do arquivo vai ser
Person
Insira o código abaixo

Arquivo: Person.java

package br.com.iatagan.model;

import java.io.Serializable;
import java.util.Objects;

public class Person implements Serializable {

    private static final long serialVersionUID = 1L;

    private Long id;
    private String firstName;
    private String lastName;
    private String address;
    private String gender;

    public Person() {}

    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;
    }

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }

    public String getGender() {
        return gender;
    }

    public void setGender(String gender) {
        this.gender = gender;
    }

    @Override
    public boolean equals(Object o) {
        if (!(o instanceof Person person)) return false;
        return Objects.equals(getId(), person.getId()) && Objects.equals(getFirstName(), person.getFirstName()) && Objects.equals(getLastName(), person.getLastName()) && Objects.equals(getAddress(), person.getAddress()) && Objects.equals(getGender(), person.getGender());
    }

    @Override
    public int hashCode() {
        return Objects.hash(getId(), getFirstName(), getLastName(), getAddress(), getGender());
    }
}

Clique com o botão direito em
br.com.iatagan
new, Java Class
O nome do arquivo vai ser
PersonServices
Insira o código abaixo

Arquivo: PersonServices.java

package br.com.iatagan;

import br.com.iatagan.model.Person;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.atomic.AtomicLong;
import java.util.logging.Logger;

@Service
public class PersonServices {

    private final AtomicLong counter = new AtomicLong();

    private Logger logger = Logger.getLogger(PersonServices.class.getName());

    public List<Person> findAll() {

        logger.info("Finding all People!");

        List<Person> persons = new ArrayList<Person>();
        for (int i = 0; i < 8; i++) {
            Person person = mockPerson(i);
            persons.add(person);
        }
        return persons;
    }

    public Person findById(String id) {
        logger.info("Finding one Person!");

        Person person = new Person();
        person.setId(counter.incrementAndGet());
        person.setFirstName("Leandro");
        person.setLastName("Costa");
        person.setAddress("Uberlândia - Minas Gerais - Brasil");
        person.setGender("Male");
        return person;
    }

    public Person create(Person person) {

        logger.info("Creating one Person!");

        return person;
    }

    public Person update(Person person) {

        logger.info("Updating one Person!");

        return person;
    }

    public void delete(String id) {

        logger.info("Deleting one Person!");

    }

    private Person mockPerson(int i) {
        Person person = new Person();
        person.setId(counter.incrementAndGet());
        person.setFirstName("Firstname " + i);
        person.setLastName("Lastname " + i);
        person.setAddress("Some Address in Brasil");
        person.setGender("Male");
        return person;
    }
}