[英]EntityManager doesn't merge object to database
我有一個 java spring 應用程序並使用 JPA
JPA 初始化代碼
@Configuration
@EnableJpaRepositories
public class Application {
@Bean
public DataSource dataSource() {
BasicDataSource dataSource = new BasicDataSource();
dataSource.setUrl("jdbc:mysql://127.0.0.1:3306/database");
dataSource.setDriverClassName("com.mysql.jdbc.Driver");
dataSource.setUsername("root");
dataSource.setPassword("pass");
dataSource.setInitialSize(20);
dataSource.setMaxActive(30);
return dataSource;
}
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory(DataSource dataSource, JpaVendorAdapter jpaVendorAdapter) {
LocalContainerEntityManagerFactoryBean lef = new LocalContainerEntityManagerFactoryBean();
lef.setDataSource(dataSource);
lef.setJpaVendorAdapter(jpaVendorAdapter);
lef.setPackagesToScan("repository");
return lef;
}
@Bean
public JpaVendorAdapter jpaVendorAdapter() {
HibernateJpaVendorAdapter hibernateJpaVendorAdapter = new HibernateJpaVendorAdapter();
hibernateJpaVendorAdapter.setShowSql(false);
hibernateJpaVendorAdapter.setGenerateDdl(true);
hibernateJpaVendorAdapter.setDatabasePlatform("org.hibernate.dialect.MySQLDialect");
return hibernateJpaVendorAdapter;
}
}
我也有簡單的實體對象
@Entity
public class Client {
@Id
private int id;
private String name;
private String email;
private String phone;
public Client(){};
public Client(int id, String name, String email, String phone){
this.id=id;
this.name=name;
this.email=email;
this.phone=phone;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
}
和存儲庫
@Repository
public class ProductRepository {
@PersistenceContext
EntityManager em;
@Transactional
public void saveClient() {
Client cl = new Client(1,"Alex","alex@gmail.com","1111111111");
em.merge(cl);
}
}
當我直接從控制器調用此方法時,我沒有將數據合並到數據庫
@Controller
@ComponentScan("repository")
@RequestMapping("/")
public class HomeController {
@Autowired
ProductRepository productRepository;
@RequestMapping(value = "/", method = RequestMethod.GET)
public String home() {
productRepository.saveClient();
return "home";
}
}
我沒有收到任何編譯或運行時異常和錯誤,但合並不會導致我的對象被保存
試試這個
@Configuration
@EnableTransactionManagement
public class Application {}
而不是
@Configuration
@EnableJpaRepositories
public class Application {}
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.