您好，我有刪除實體的問題。實體管理者不會刪除實體。有沒有人看到代碼中的錯誤？用@OneToOne刪除實體
錯誤消息：
java.lang.AssertionError： 預計：空 實際：帳戶{ID = 1，客戶=客戶{客戶ID = 1，名字= '金'，姓氏= '佩德森'， email ='[email protected]'，phoneNumber ='90045870'，birth = 1980-11-05 00：00：00.0}，login ='Login {Id = 1，username ='kimPedda'，password ='kimSimDimSum' }}
@Entity
@NamedQuery(name = "Account.getAll", query = "select a from Account a")
@SequenceGenerator(name = "SEQ_ACC", initialValue = 50)
public class Account {
@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "SEQ_ACC")
private int id;
@OneToOne(cascade = CascadeType.ALL)//, fetch = FetchType.EAGER)
@JoinColumn(name = "FK_CUSTOMER")
private Customer customer;
@OneToOne(cascade = CascadeType.ALL)
@JoinColumn(name = "FK_LOGIN")
private Login login;
/*
-------------------------------------------
CONSTRUCTORS
-------------------------------------------
*/
public Account(Customer customer, Login login) {
this.customer = customer;
this.login = login;
}
public Account() {
}
// ======================================
// = GET AND SET =
// ======================================
public Customer getCustomer() {
return customer;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public void setCustomer(Customer customer) {
this.customer = customer;
}
public Login getLogin() {
return login;
}
public void setLogin(Login login) {
this.login = login;
}
// ======================================
// = TO STRING =
// ======================================
@Override
public String toString() {
return "Account{" +
"id=" + id +
", customer=" + customer +
", login= '" + login +
'}';
}
}
public class JpaAccountDao implements AccountDao {
@PersistenceContext(unitName = "account")
private EntityManager entityManager;
public JpaAccountDao() {
}
public JpaAccountDao(EntityManager entityManager){
this.entityManager = entityManager;
}
@Override
public Account persist(Account account) {
if(account == null)
throw new IllegalArgumentException("No account could be created!");
entityManager.persist(account);
return account;
}
@Override
public Boolean delete(int id) {
if(id != 0) {
Account account = entityManager.find(Account.class,id);
entityManager.remove(account);
return true;
}
throw new IllegalArgumentException(String.format("Account with id-nr:{%d] could not be deleted =C ", id));
}
@Override
public Account findById(int id) {
if(id <= 0)
throw new IllegalArgumentException("No id was found!");
return entityManager.find(Account.class, id);
}
@Override
public List<Account> getAll() {
TypedQuery<Account> query = entityManager.createNamedQuery("Account.getAll", Account.class);
return query.getResultList();
}
}
公共類AccountServiceIT {
private EntityManager entityManager;
private EntityManagerFactory factory;
private JpaAccountDao jpaAccountDao;
private JpaCustomerDao jpaCustomerDao;
private CustomerTestCase customerTestCase;
private JpaLoginDao jpaLoginDao;
private Account account;
private Account account2;
@Before
public void setup() throws Exception {
factory = Persistence.createEntityManagerFactory("TEST");
entityManager = factory.createEntityManager();
jpaAccountDao = new JpaAccountDao(entityManager);
account = new Account();
account2 = new Account();
}
@After
public void tearDown() throws Exception {
entityManager.close();
factory.close();
}
/*
Delete a account popularized via the init.script
*/
// TODO CREATE A TESTE THATS RUNS
@Test
public void deleteAccountTest() throws Exception {
Account account = entityManager.find(Account.class, 1);
entityManager.getTransaction().begin();
boolean result = jpaAccountDao.delete(account.getId());
entityManager.getTransaction().commit();
Account res = jpaAccountDao.findById(1);
assertEquals(res, account);
assertNull(result);
}
}
（Init.script）
INSERT INTO BOOK（ID，標題，價格，描述，數量，instantiationDate）VALUES（ 1，'Mio min Mio'，100.0，'關於兩兄弟的書'，'8-321389213'，'2016-05-11 23:42:21'）; INSERT INTO BOOK（id，title，price，description，number，instantiationDate）VALUES（2，'Franks dagbok'，10.0，'關於戰爭和Auchwitch'，'13 -321321321'，'2016-11-05 20： 00:00'）; （1，'Kim'，'Pedersen'，'[email protected]'，'90045870'，'1980-11-05（0）評論（0）隱藏評論提問時間2007-06-01 20:10:10我要評論「）; INSERT INTO CUSTOMER（FK_CUSTOMER，firstName，lastName，email，phoneNumber，birth）VALUES（2，'Silje'，'Kyrra'，'[email protected]'，'45236585'，'1999-1-15'）; （FK_LOGIN，用戶名，密碼）VALUES（1，'kimPedda'，'kimSimDimSum'）; INSERT INTO LOGIN（FK_LOGIN，username，password）VALUES（2，'Silkyra'，'SanriKorraDigo'）; （ID，FK_CUSTOMER，FK_LOGIN）VALUES（1,1,1）;
INSERT INTO ACCOUNT（id，FK_CUSTOMER，FK_LOGIN）VALUES（1,1,1）; INSERT INTO ACCOUNT（id，FK_CUSTOMER，FK_LOGIN）VALUES（2，2，2）;
郵政代碼**在這裏**，請不要鏈接到它。 – QBrute