First time using EasyMock and Spring together.
I have the test class:
#RunWith(EasyMockRunner.class)
public class ProjectServiceTest {
#Mock
private ProjectRepository projectRepositoryMock;
#TestSubject
private ProjectService service new ProjectService();
#Before
public void setUp() throws Exception {
Project project = new Project("Project");
EasyMock.expect(projectRepositoryMock.findOne(1)).andReturn(project);
}
#After
public void tearDown() throws Exception {
}
#Test
public void getProjectById() throws Exception {
System.out.println(this.service.getProjectById(1);
}
This is my project entity:
#Entity
#Table(name = "Project")
public class Project {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private Integer id;
private String projectName;
public Project(){
}
public Project(String projectName) {
this.projectNaam = projectName;
}
It also has the usual getters and setters.
My repository just extends the JpaRepository.
And this is my ProjectService class
#Service
public class ProjectService {
#Autowired
private ProjectRepository projectRepository;
public ProjectService(){
}
public Project getProjectById(Integer id){
return this.projectRepository.findOne(id);
}
public void saveProject(Project project){
this.projectRepository.save(project);
}
public void deleteProject(Integer id){
this.projectRepository.delete(id);
}
public List<Project> getAllProjects(){
return this.projectRepository.findAll();
}
public Project findProjectById(Integer id){
return this.projectRepository.findOne(id);
}
}
My test failed so that's why I use system.out.println to figure out whats going on. It prints: null.
I don't understand this. #Mock and #TestSubject seems good, becauase I want to test the service and mock the repository.
Instead of
System.out.println(this.service.getProjectById(1);
I tried
System.out.println(this.projectRepositoryMock.findOne(1));
But this also returns null.
You need to put the mock in replay mode. Try
#Before
public void setUp() throws Exception {
Project project = new Project("Project");
EasyMock.expect(projectRepositoryMock.findOne(1)).andReturn(project);
EasyMock.replay(projectRepositoryMock);
}
Related
I'm a bit new to Spring Boot and I'm trying to create model/repo/service/serviceImp/controller type of architecture.
After I try to make a this get request:
http://localhost:8080/api/v1/people/name?name=steve
and I get this error (I created a couple of people in DB):
"java.lang.NullPointerException: Cannot invoke \"com.project.Springbootbackend.service.PeopleService.findAllByName(String)\" because \"this.peopleService\" is null\r\n\tat com.project.Springbootbackend.controller.PeopleController.findAllByName(PeopleController.java:24)
This is my code:
People(entity)
#Entity
public class People {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private long id;
#Column(name = "name")
private String name;
#Column(name = "surname")
private String surname;
#Column(name = "email")
private String email;
...
//constructor + get/set
PeopleController
#RestController
#RequestMapping("/api/v1/people")
#RequiredArgsConstructor
public class PeopleController {
private PeopleService peopleService;
#GetMapping("/name")
public ResponseEntity<List<People>> findAllByName(#RequestParam String name) {
return ResponseEntity.ok().body(peopleService.findAllByName(name));
}
}
PeopleRepo
public interface PeopleRepository extends JpaRepository<People, Integer> {
List<People> findAllByName(String name);
}
PeopleService
public interface PeopleService {
List<People> findAllByName(String name);
}
PeopleServiceImp
#RequiredArgsConstructor
#Service
public class PeopleServiceImp implements PeopleService {
PeopleRepository peopleRepository;
#Override
public List findAllByName(String name) {
return (List) ResponseEntity.ok(peopleRepository.findAllByName(name));
}
}
Thx guys in advance.
*SOLUTION:
Entity, service & repository is the same.
ServiceImp and controller changes are down belowe:
Controller:
#RestController
#RequestMapping("/api/v1/people")
public class PeopleController {
private PeopleService peopleService;
public PeopleController(PeopleService peopleService) {
this.peopleService = peopleService;
}
#GetMapping("/name")
public ResponseEntity<List<People>> findAllByName(#RequestParam String name) {
return ResponseEntity.ok().body(peopleService.findAllByName(name));
}
}
ServiceImp
#Service
public class PeopleServiceImp implements PeopleService {
private PeopleRepository peopleRepository;
public PeopleServiceImp(PeopleRepository peopleRepository) {
this.peopleRepository = peopleRepository;
}
#Override
public List<People> findAllByName(String name) {
List<People> people = peopleRepository.findAllByName(name);
return people;
}
}
Your constructor does not inject the service, because of the RequiredArgsConstructor (see Link) needs special treatment. Therefore, use final:
#RestController
#RequestMapping("/api/v1/people")
#RequiredArgsConstructor
public class PeopleController {
private final PeopleService peopleService;
#GetMapping("/name")
public ResponseEntity<List<People>> findAllByName(#RequestParam String name) {
return ResponseEntity.ok().body(peopleService.findAllByName(name));
}
}
Same here:
#RequiredArgsConstructor
#Service
public class PeopleServiceImp implements PeopleService {
private final PeopleRepository peopleRepository;
#Override
public List findAllByName(String name) {
return (List) ResponseEntity.ok(peopleRepository.findAllByName(name));
}
}
Additional hint, use a typed list:
#Override
public List<People> findAllByName(String name) {
return ResponseEntity.ok(peopleRepository.findAllByName(name));
}
Try like this:
#Autowired
private PeopleService peopleService;
#Autowired
private PeopleRepository peopleRepository;
You also need to add the #SpringBootApplication annotation in the main class of the application.
Something like that:
#SpringBootApplication
class PeopleApplication {
public static void main(String[] args) {
...
Take a look at this article about automatic dependency injection in Spring:
https://www.baeldung.com/spring-autowire
You missed the autowiring annotation in the controller to inject the service which may make this.peopleService to be null.
#Autowired
private PeopleService peopleService;
You also need to do autowire in your serviceimpl class
#Autowired
private PeopleRepository peopleRepository;
How to set up a PostgreSQL database connection in r2dbc Spring boot project?
I have tried the below configuration, it connects to the database but it's not returning any values
#Configuration
#EnableR2dbcRepositories
public class DatabaseConfig extends AbstractR2dbcConfiguration {
#Override
public ConnectionFactory connectionFactory() {
return ConnectionFactories.get("r2dbc:postgresql://localhost:5432/sample");
}
/*#Override
public ConnectionFactory connectionFactory() {
return ConnectionFactories.get(new PostgresqlConnectionFactory(
PostgresqlConnectionConfiguration.builder()
.host("localhost")
.port(5432)
.username("postgres")
.password("thirumal")
.database("sample")
.build()););
}*/
}
application.properties
spring.r2dbc.url=r2dbc:postgresql://localhost:5432/sample
spring.r2dbc.username=postgres
spring.r2dbc.password=thirumal
spring.r2dbc.pool.enabled=true
Model
#Data#NoArgsConstructor#AllArgsConstructor#Getter#Setter
#ToString
#Table("public.test")
public class Test implements Serializable{
/**
*
*/
private static final long serialVersionUID = 4205798689305488147L;
#Id//#Column("id")
private Long id;
private String name;
}
Repository
public interface TestRepository extends ReactiveCrudRepository<Test, Long> {
}
REST CONTROLLER:
#GetMapping("/test")
public Mono<Test> test() {
testRepository.findById(3L).subscribe(v->System.out.println("Value: " + v.toString()));
return testRepository.findById(3L);
}
It prints the output in the console but in the JSON, I get only empty braces {}
What is the correct way to configure? Any other configuration is required?
I found the problem. It's Lombok library, I didn't install it in eclipse.
When I created the getter and setter method manually it worked.
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
Then, I set up the lombok and used #getter and #setter and it worked.
This configuration works for me, but I use the DatabaseClient instead of the R2dbcRepositories to query the data:
#Configuration
public class DatabaseConfiguration extends AbstractR2dbcConfiguration {
#Override
#Bean
public ConnectionFactory connectionFactory() {
return new PostgresqlConnectionFactory(PostgresqlConnectionConfiguration.builder()
.host("localhost")
.port(5432)
.username("username")
.password("password")
.database("mydb")
.build());
}
}
Then in the repository:
#Repository
public class MyRepository {
#Autowired
private DatabaseClient client;
public Flux<String> getString() {
....
}
}
UPDATE:
If it's connect to the database probably your configuration is right, can you share also the code used to get the data?
It's possible that you are getting the result as Mono or Flux, but not reading from it (try with subscribe()).
Mono<String> mono = db.getData();
mono.subscribe(value -> System.out.println(value));
I have to write some junit test cases to check entity. I'm using postgres as my database.
My entity class
#Entity
#Table(name = "display")
public class Display {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
private String title;
private String group;
public Display() {
}
public Display(Long id, String title, String grp) {
this.id = id;
this.title= title;
this.group= grp;
}
public void setId(Long id) {
this.id = id;
}
public Long getId() {
return this.id;
}
public void setGroup(String id) {
this.group = id;
}
public String getGroup() {
return this.group;
}
public void settitle(String title) {
this.title = title;
}
public String gettitle() {
return this.title;
}
}
My repository
#Repository
public interface DisplayRepository extends CrudRepository<Display, Long> {
}
Interface
public interface IDisplayService {
List<Display> findAll();
}
Service class
#Service
public class DisplayService implements IDisplayService {
#Autowired
private DisplayRepository repository;
#Override
public List<Display> findAll() {
List<Display> d = (List<Display>) repository.findAll();
return d;
}
}
I tried writing junit test cases but I get Could'nt load Application. Whats the right way to write junit test cases for this?
This is the test case I wrote for service
folder : test/java/example/demo/Test.java
#RunWith(MockitoJUnitRunner.class)
#TestPropertySource("classpath:conn.properties")
public class DisplayServiceTest {
#Value("${id}")
private String value;
#Mock
private DisplayRepository DisplayReps;
#InjectMocks
private DisplayService DisplayService;
#Test
public void whenFindAll_thenReturnProductList() {
Menu m = new Menu()
m.setId(value);
List<Display> expectedDisplay = Arrays.asList(m);
doReturn(expectedDisplay).when(DisplayReps).findAll();
List<Display> actualDisplay = DisplayService.findAll();
assertThat(actualDisplay).isEqualTo(expectedDisplay);
}
in test/java/example/demo/resources
conn.properties
id=2
Its returning 0 for value
Whats the issue?
Thanks
I have managed to make your code to work. I will post only the changed classes:
The interface:
public interface DisplayRepository extends CrudRepository<Display, Long> {
Optional<Display> findByTitle(String name);
}
The test class:
#RunWith(SpringRunner.class)
#AutoConfigureTestDatabase(replace= AutoConfigureTestDatabase.Replace.NONE)
#DataJpaTest
public class DisplayRepositoryTest {
#Autowired
private TestEntityManager testEntityManager;
#Autowired
private DisplayRepository productRespository;
#Before()
public void setUp(){
Display m = new Display();
// m.setId(2L); // The ID is autogenerated; can retrieve it from the persistAndFlush result
m.setCategory("Group1");
m.setTitle("Product2");
testEntityManager.persistAndFlush(m);
}
#Test
public void whenFindByName_thenReturnProduct() {
// when
Display product = productRespository.findByTitle("Product2").orElseThrow(() -> new RuntimeException("Product not found"));
// then
assertThat(product.getTitle()).isEqualTo("Product2");
}
#Test
public void whenFindAll_thenReturnProductList() {
// when
List<Display> products = (List<Display>) productRespository.findAll();
// then
assertThat(products).hasSize(1);
}
}
When trying to run the code you provided, there were a few issues:
you were using the reserved word group as a field in the Display class. Because of this, Hibernate couldn't create the table, so I renamed it to category.
there was a compilation issue because the method findByName wasn't defined in the repository; also, there was no field name in the Display class to which the mapping to be made; because of this, I've added the method findByTitle because it's an existing field and it seemed to match the value you queried in the test method.
because the ID field is autogenerated, the test setup() failed when persisting the Display.
If you want to use #Mock for mocking classes, you must call:
#Before
public void setUp() {
MockitoAnnotations.initMocks(this);
}
You can then mock responses as usual: Mockito.when(DisplayReps.findByTitle("A")).thenReturn(Optional.of(new Display(2L, "ALFA", "GRP1")));
I have a Spring Boot application in which I have created an entity, a repository and a service.
I save entities in the database via transactions and everything works fine, my database is populated as I would expect. Also, I should mention that my database is created in PHPMyAdmin.
I also created a repository in order to fetch some data from the database by extending the Crud Repository. I also have a service which stores the methods that call the repository.
Though, none of the methods I have return anything ( my database is not empty ) and I do not know why. I have also tried adding #EnableJpaRepositories and #ComponentScan for the entity, but this did not work. Below are my classes:
The entity ( I will not put all the getters and setters here) :
#Entity
#Table(name = "matches", schema = "tennis", catalog = "")
public class MatchesEntity {
private int id;
private String namePlayer1;
private String namePlayer2;
private int setsPlayer1;
private int setsPlayer2;
private String odd1;
private String odd2;
private String competition;
private String surface;
private String status;
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
#Basic
#Column(name = "Name_player1")
public String getNamePlayer1() {
return namePlayer1;
}
public void setNamePlayer1(String namePlayer1) {
this.namePlayer1 = namePlayer1;
}
#Basic
#Column(name = "Name_player2")
public String getNamePlayer2() {
return namePlayer2;
}
// other getter & setters
}
The repository:
#Repository
public interface MatchesRepository extends CrudRepository<MatchesEntity,
Integer> {
List<MatchesEntity> getAllBySurface(String surface);
}
The service:
#Service
public class MatchesService {
#Autowired
MatchesRepository matchesRepository;
public int countMatchesOnHard() {
return matchesRepository.getAllBySurface("hard").size();
}
public MatchesEntity findMatchById() {
return matchesRepository.findById(2378).get();
}
}
The main class:
#SpringBootApplication
#EnableJpaRepositories(basePackageClasses={MatchesRepository.class})
#EntityScan(basePackageClasses=MatchesEntity.class)
public class PicksApplication {
#Autowired
static MatchesService matchesService;
public static void main(String[] args) {
MatchesEntity matchesEntity = matchesService.findMatchById();
int numberOfMatchesOnHard = matchesService.countMatchesOnHard();
System.out.println(numberOfMatchesOnHard);
}
}
Any method I try which is repository related returns null.
Can anyone help me with a suggestion ?
Your main class PicksApplication is troublesome. The main method must trigger SpringApplication.run for the spring boot to initialize itself & the context for autowires to work. You are breaking all that within your code. You can utilize CommandLineRunner and add your code in run() method.
Like this;
#SpringBootApplication
public class PicksApplication implements CommandLineRunner {
#Autowired
private MatchesService matchesService;
public static void main(String[] args) {
SpringApplication.run(PicksApplication.class, args);
}
#Override
public void run(String... args) throws Exception {
MatchesEntity matchesEntity = matchesService.findMatchById();
int numberOfMatchesOnHard = matchesService.countMatchesOnHard();
System.out.println(numberOfMatchesOnHard);
}
}
then it ought to work, rest of the code looks OK
I am developing an JavaFx application with spring boot,JPA, and H2. I have a user entity when I try to add a new user into the DB it throws NPE in the controller on the button's click action. As it is seen I use only autowire notation. I researched
but findings did not help out. Any help please?
package com.core;
#SpringBootApplication
#Import(SharedSpringConfiguration.class)
public class Runner extends Application {
private ConfigurableApplicationContext context;
public static void main(String[] args) {
launch(args);
}
#Override
public void init() {
context = SpringApplication.run(Runner.class);
}
}
package com.dao;
#Entity
#Table(name = "user")
public class User {
#Id
#Column(name = "id", updatable = false, nullable = false)
private long ID;
#Column(nullable = false)
private String userName;
#Column(nullable = false)
private String userPass;
public User() {
}
public User(long ID, String userName, String userPass) {
this.ID = ID;
this.userName = userName;
this.userPass = userPass;
}
}
package com.service;
#Service
public class UserService {
#Autowired
private UserRepository userRepository;
public UserService() {
}
public void saveUser(User user) {
userRepository.save(user);
}
}
package com.repository;
public interface UserRepository extends CrudRepository<User, Long> {}
package com.controller
#Controller
public class MethodController implements Initializable {
#Autowired
private UserService userService;
#FXML
void methodSave(MouseEvent event) {
userService.saveUser(new User(11, "TestUser", "noPass")); //Throws NPE. Indicates that userService is null. But I autowire the userService.
}
}
I don't know what's in SharedSpringConfiguration, but you probably need #EnableJpaRepositories on one of your configuration classes. #Repository on the CrudRepo should be unnecessary.
Change your SpringBootApplication package from com.core to com
because SpringBootApplication by default will scan only that packages and sub packages.
else
add #ComponentScan annotation in SpringBootApplication and scan the packages.