Я пытаюсь сохранить информацию в DynamoDB, но в настоящее время я получаю сообщение об ошибке java.lang.NullPointerException: null при использовании «save» в классе AccountHelper.
Я следовал руководству для начинающих, найденному на Github;https://github.com/derjust/spring-data-dynamodb
Вот мой класс модели;
@DynamoDBTable(tableName = "Users")
public class User {
// @Id
private String _id;
private String bloodGroup;
private String firstName; // DO NOT change this, needs to stay firstName
private String surname;
private String email;
private String password;
private String addressline;
private String postcode;
private String latitude;
private String longitude;
public User() {}
// More Constructors, Getters & Setters
Класс конфигурации DynamoDB;
@EnableDynamoDBRepositories(includeFilters = {@ComponentScan.Filter(type = FilterType.ASSIGNABLE_TYPE, classes = {DynamoDBRepo.class})})
@Configuration
public class DynamoDBConfig {
@Value("${amazon.aws.accesskey}")
private String amazonAWSAccessKey;
@Value("${amazon.aws.secretkey}")
private String amazonAWSSecretKey;
public AWSCredentialsProvider amazonAWSCredentialsProvider() {
return new AWSStaticCredentialsProvider(amazonAWSCredentials());
}
@Bean
public AWSCredentials amazonAWSCredentials() {
return new BasicAWSCredentials(amazonAWSAccessKey, amazonAWSSecretKey);
}
@Primary
@Bean
public DynamoDBMapperConfig dynamoDBMapperConfig() {
return DynamoDBMapperConfig.DEFAULT;
}
@Bean
public DynamoDBMapper dynamoDBMapper(AmazonDynamoDB amazonDynamoDB, DynamoDBMapperConfig config) {
return new DynamoDBMapper(amazonDynamoDB, config);
}
@Bean
public AmazonDynamoDB amazonDynamoDB() {
return AmazonDynamoDBClientBuilder.standard().withCredentials(amazonAWSCredentialsProvider())
.withRegion(Regions.US_EAST_1).build();
}
}
Вот метод / класс, в котором я получаю ошибку;
@Service
public class AccountHelper {
private DynamoDBRepo dynamoDBRepo;
@Autowired
private BCryptPasswordEncoder bCryptPasswordEncoder;
public User create(String bloodGroup, String firstname, String surname, String email, String password, String addressline, String postcode) {
// Getting the error here
return dynamoDBRepo.save(new User(bloodGroup, firstname, surname, email, bCryptPasswordEncoder.encode(password), addressline, postcode));
}
// More methods below that i am not adding to keep this question to a minimum.
Вот мой контроллер;
@Controller
@Component
public class AccountController {
@Autowired
private AccountHelper Service_functions;
@ResponseBody // Works
@PostMapping(value = "/create/{bloodGroup}/{firstname}/{surname}/{email}/{password}/{addressline}/{postcode}")
public String create( @PathVariable String bloodGroup , @PathVariable String firstname, @PathVariable String surname, @PathVariable String email, @PathVariable String password, @PathVariable String addressline, @PathVariable String postcode){
User CreateUser = Service_functions.create(bloodGroup, firstname, surname, email, password, addressline, postcode);
System.out.println("this is working");
return CreateUser.toString();
}
свойства учетной записи;
spring.application.name=account-service
server.port=8020
eureka.client.service-url.defaultZone=http://localhost:8001/eureka/
amazon.aws.accesskey="" // i removed the keys
amazon.aws.secretkey=""
Любые предложения / помощь будут очень полезны, если я ошибаюсь.