为什么Hibernate模式验证无法验证模式

时间:2018-11-25 22:58:37

标签: java spring hibernate jdbc h2

曾问过同一问题多次,但没有一个能解决我的问题。

我创建了一个休眠+ H2 + Sprinvg mvc项目。我正在使用基于Java的配置。我有以下与Datasource,SessionFactory和TransactionManager相关的bean

@Configuration
@ComponentScan(basePackages="org.testpackage")
@EnableWebMvc
@EnableTransactionManagement

public class MyConfiguration extends WebMvcConfigurationSupport {


@Bean(initMethod="start",destroyMethod="stop")
public org.h2.tools.Server h2WebConsonleServer () throws SQLException {
  return org.h2.tools.Server.createWebServer("-web","-webAllowOthers","- 
  webDaemon","-webPort", "8082");
}

@Bean
public DataSource getDataSource() {     
    return new EmbeddedDatabaseBuilder()
            .generateUniqueName(false)
            .setName("mytestdb")
            .setType(EmbeddedDatabaseType.H2)
            .addDefaultScripts()
            .setScriptEncoding("UTF-8")
            .ignoreFailedDrops(true)
            .build();
}

@Bean
public LocalSessionFactoryBean sessionFactory() {
    final LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
    sessionFactory.setDataSource(getDataSource());
    sessionFactory.setHibernateProperties(hibernateProperties());
    sessionFactory.setPackagesToScan(new String[] {"org.testpackage.model"});

    return sessionFactory;
}

@Bean
@Autowired
public HibernateTransactionManager transactionManager(final SessionFactory sessionFactory) {
    final HibernateTransactionManager txManager = new HibernateTransactionManager();
    txManager.setSessionFactory(sessionFactory);

    return txManager;
}

final Properties hibernateProperties() {
    final Properties hibernateProperties = new Properties();
    hibernateProperties.setProperty("hibernate.hbm2ddl.auto", "validate");
    hibernateProperties.setProperty("hibernate.show_sql", "true");

    return hibernateProperties;
}
  //Some more beans  
}

我有以下Entity类

@Entity
@Table(name = "MYTESTDB.TEST_TABLE")
public class User{

@Id
@GeneratedValue
@Column(name = "id")
private int id;

@Column(name = "name")
private String name;

@Column(name = "email", unique = true)
private String email;


public User(int id, String name, String email) {
    super();
    this.id = id;
    this.name = name;
    this.email = email;
}

public User() {
}
//Getters and Setters
}
在DataSource bean中,

我正在使用addDefaultScripts(),并且我有2个sql脚本,它们在H2中创建Schema并插入一些预定义的值。如下。

//schema.sql Script
CREATE SCHEMA `MYTESTDB` ;
Drop TABLE IF EXISTS MYTESTDBDB.TEST_TABLE;
CREATE TABLE MYTESTDB.TEST_TABLE ( 
   ID INT NOT NULL PRIMARY KEY, 
   NAME VARCHAR(50) NOT NULL, 
   EMAIL VARCHAR(20) NOT NULL, 
   );
CREATE UNIQUE INDEX ON MYTESTDB.TEST_TABLE (EMAIL)

//data.sql Script
INSERT INTO MYTESTDB.TEST_TABLE(id, name, email) 
VALUES ('1', 'Tom', 'tom12@hotmail.com');

如果我使用休眠 hbm2ddl.auto 属性值“创建” ,则一切正常,休眠会删除该表并重新创建它。我已经从网络浏览器验证了它。但是,如果我使用“ validate” 属性,则会收到以下错误异常

Error creating bean with name 'sessionFactory' defined in org.testPackage.configuration.MYConfiguration: Invocation of init method    failed; nested exception is org.hibernate.tool.schema.spi.SchemaManagementException: Schema-validation: missing table [MYTESTDB.TEST_TABLE]

任何人都可以帮助我找出问题所在吗?

1 个答案:

答案 0 :(得分:1)

它现在正在工作。在@Slaw的帮助下,我可以使用“验证” 属性。 使用@Table(schema = "MYTESTDB", name = "TEST_TABLE")代替@Table(name = "MYTESTDB.TEST_TABLE")。但是我必须在用户实体类中进行更多更改。我添加了@GeneratedValue而不是@GeneratedValue(strategy = GenerationType.IDENTITY)注释。现在一切正常。

感谢@Slaw和@Mykhailo宝贵的时间。