将 XML hibernateConfiguration 转换为 Java 配置？

Question

我希望将此 XML 转换为 Java 配置 Spring:

<bean id="hibernateConfiguration" factory-bean="&amp;sessionFactory"
    factory-method="getConfiguration" />

我在想...

@Bean
public org.hibernate.cfg.Configuration configuration() {

    org.hibernate.cfg.Configuration config = new org.hibernate.cfg.Configuration();

    //uhhh...

    return config;
}

如何指定 factory-bean 和 factory-method 参数？试着环顾四周，但没有运气。

旁白：& 告诉 Spring 获取实际的 bean

更新：

下面是我使用 bean 的方式。它是一个打印模式的侦听器。

@Component
public class SchemaExportListener extends AbstractEnvironment implements ApplicationListener<ContextRefreshedEvent> {

    @Override
    public void onApplicationEvent(ContextRefreshedEvent event) {

       log.debug("onApplicationEvent");

       if (isPrintSchemaEnabled()) {
          log.info("printing schema");

          SchemaExport schema = new SchemaExport(hibernateConfiguration);
          schema.setDelimiter(BaseConstants.SEMI_COLON);

          if(isCreateOutputFile()) {
             schema.setOutputFile(getSchemaOutputPath());
          }
          schema.create(true, false);
       }
    }

    public static boolean isPrintSchemaEnabled() {
       return Boolean.valueOf(getResourceBundle().getString(PRINT_SCHEMA_ENABLED));
    }

    public static boolean isCreateOutputFile() {
       return Boolean.valueOf(getResourceBundle().getString(OUTPUT_FILE_ENABLED));
    }

    public static String getSchemaOutputPath() {
       return getResourceBundle().getString(SCHEMA_OUTPUT_PATH);
    }

    @Autowired
    private Configuration hibernateConfiguration;

    public static final String PRINT_SCHEMA_ENABLED = "enablePrintSchema";
    public static final String SCHEMA_OUTPUT_PATH = "schemaOutputPath";
    public static final String OUTPUT_FILE_ENABLED = "enableSchemaOutputFile";

    private static final Logger log = LoggerFactory.getLogger(SchemaExportListener.class);

}

至于更多XML，并非都相关，但既然被要求：

  <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
     <property name="dataSource" ref="dataSource" />
    <!--Annotated classes redacted -->
    <property name="hibernateProperties">
      <props>       
         <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5InnoDBDialect</prop>         
         <prop key="hibernate.show_sql">false</prop>
         <prop key="hibernate.format_sql">true</prop>
         <prop key="hibernate.hbm2ddl.auto">create</prop>
      </props>
    </property>
  </bean>

  <bean id="dataSource" class="com.zaxxer.hikari.HikariDataSource" destroy-method="close">
    <constructor-arg ref="hikariConfig" />
  </bean>

  <bean id="hikariConfig" class="com.zaxxer.hikari.HikariConfig">
    <property name="poolName" value="springHikariConnectionPool" />
    <property name="connectionTestQuery" value="SELECT 1" />
    <property name="dataSourceClassName" value="${dataSource.dataSourceClassName}" />
    <property name="maximumPoolSize" value="10" />
    <property name="idleTimeout" value="30000" />

    <property name="dataSourceProperties">
      <props>
            <prop key="url">${dataSource.url}</prop>
            <prop key="user">${dataSource.username}</prop>
            <prop key="password">${dataSource.password}</prop>
      </props>
    </property>
  </bean>

Answer 1

您可以直接自动装配 LocalSessionFactoryBean 并获取配置

@Autowired
private LocalSessionFactoryBean localSessionFactoryBean;

@Bean(name = "hibernateConfig")
public org.hibernate.cfg.Configuration getConfig() {
    return localSessionFactoryBean.getConfiguration();
}

Answer 2

不要认为您需要在 java config.In 中提及工厂 bean 或方法，您的 class 连接 class 中的 sessionFactory 并查看如果有效

@Component
public class SchemaExportListener extends AbstractEnvironment implements ApplicationListener<ContextRefreshedEvent> {

@Autowired
private LocalSessionFactoryBean localSessionFactoryBean;

    @Override
    public void onApplicationEvent(ContextRefreshedEvent event) {

       log.debug("onApplicationEvent");

       if (isPrintSchemaEnabled()) {
          log.info("printing schema");

          SchemaExport schema = new SchemaExport(localSessionFactoryBean.getConfiguration());
          schema.setDelimiter(BaseConstants.SEMI_COLON);

在Java配置中class

@Autowired
private LocalSessionFactoryBean localSessionFactoryBean;

@Bean
public DataSource getDataSource() {
  //return the data source here
}

@Bean(name = "hibernateConfig")
public org.hibernate.cfg.Configuration getConfig() {
    return localSessionFactoryBean.getConfiguration();
}

如果会话对象的自动装配失败，请尝试在配置中创建对象，如下所示

@Autowired
@Bean
public LocalSessionFactoryBean getSessionFactoryBean(DataSource dataSource) {
    LocalSessionFactoryBean localSessionFactoryBean = new LocalSessionFactoryBean();
    sessionFactory.setDataSource(this.getDataSource());
  //sessionFactory.setHibernateProperties(this.hibernateProperties());

    return localSessionFactoryBean;
 }

其余配置请参考一些指南或示例这里有几个 example1 example2

希望这能解决您的问题

将 XML hibernateConfiguration 转换为 Java 配置？

Convert XML hibernateConfiguration to Java Config?

java

spring

hibernate

spring-java-config