Question

目前，我正在将基于XML的bean创建和配置设置移至基于JAVA的spring配置。我坚持移动数据库设置？如何在基于JAVA的配置文件中编写这些hibernate数据库设置？

<bean
    class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor" />
<bean id="sessionFactory"
    class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
    <property name="hibernateProperties">
        <value>
            hibernate.connection.driver_class=com.mysql.jdbc.Driver
            hibernate.connection.url=jdbc:mysql://url
            hibernate.connection.username=username
            hibernate.connection.password=password
            hibernate.dialect=org.hibernate.dialect.HSQLDialect
            hibernate.show_sql=false
            </value>

    </property>
    <property name="packagesToScan" value="com.test" />

</bean>


<tx:annotation-driven />

<bean id="transactionManager"
    class="org.springframework.orm.hibernate3.HibernateTransactionManager">
    <property name="sessionFactory" ref="sessionFactory" />
</bean>
<tx:annotation-driven proxy-target-class="true" />

我添加了交易详情。我得到了这个例外：

引起：java.lang.ClassNotFoundException： org.hibernate.context.spi.CurrentSessionContext

Answer 1

这是配置。我还添加了事务管理功能，您将在最终解决方案中明确需要这些功能。

import java.util.Properties;
import javax.sql.DataSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.datasource.DriverManagerDataSource
import org.springframework.orm.hibernate3.HibernateTransactionManager;
import org.springframework.orm.hibernate3.LocalSessionFactoryBean
import org.springframework.transaction.annotation.EnableTransactionManagement;

@Configuration
@EnableTransactionManagement
public class DbConfig{

@Bean
public DataSource getDatasource() {

        DriverManagerDataSource dataSource = new DriverManagerDataSource();
        dataSource.setDriverClassName("com.mysql.jdbc.Driver");
        dataSource.setUrl("jdbc:mysql://url");
        dataSource.setUsername("username");
        dataSource.setPassword("password");

        return dataSource;
    }

@Bean
public SessionFactory getSessionFactory() throws IOException{

LocalSessionFactoryBean sessionFactoryBean = new LocalSessionFactoryBean();
 sessionFactoryBean.setPackagesToScan("com.test");

//getHibernateProperties method is a private method 

  sessionFactoryBean.setHibernateProperties(getHibernateProperties());
    sessionFactoryBean.setDataSource(getDatasource());
    sessionFactoryBean.afterPropertiesSet();

    return sessionFactoryBean.getObject();
}

@Bean
    public HibernateTransactionManager getTransactionManager() throws IOException{
        HibernateTransactionManager transactionManager = new HibernateTransactionManager();
        transactionManager.setSessionFactory(getSessionFactory());

        return transactionManager;
   }


private static Properties getHibernateProperties() {

        Properties hibernateProperties = new Properties();
        hibernateProperties.put("hibernate.dialect", "org.hibernate.dialect.HSQLDialect");
        hibernateProperties.put("hibernate.show_sql", false);
        // other properties

        return hibernateProperties;
    }

Answer 2

接受的答案不完整。这段代码帮助我：

Post

Answer 3

import com.sda.hibernate.associations.one_to_many_bi.Child;
import com.sda.hibernate.associations.one_to_many_bi.Parent;
import com.sda.hibernate.associations.one_to_many_uni.Daughter;
import com.sda.hibernate.associations.one_to_many_uni.Mother;
import com.sda.hibernate.associations.one_to_many_uni_join.Father;
import com.sda.hibernate.associations.one_to_many_uni_join.Son;
import com.sda.hibernate.types.Player;
import org.hibernate.SessionFactory;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;
import org.hibernate.cfg.Environment;
import org.hibernate.service.ServiceRegistry;

import java.util.Properties;

public class HibernateUtil {

    // get a session factory
    public static SessionFactory getSessionFactory() {
        Configuration configuration = createConfig();

        ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder()
            .applySettings(configuration.getProperties()).build();

        return configuration.buildSessionFactory(serviceRegistry);
    }

    private static Configuration createConfig() {
        Configuration configuration = new Configuration();

        Properties settings = new Properties();
        settings.put(Environment.DRIVER, "com.mysql.cj.jdbc.Driver");
        settings.put(Environment.URL, "jdbc:mysql://localhost:3306/hibernate?serverTimezone=UTC");
        settings.put(Environment.USER, "root");
        settings.put(Environment.PASS, "root");
        settings.put(Environment.DIALECT, "org.hibernate.dialect.MySQL8Dialect");
        settings.put(Environment.SHOW_SQL, "true");
        settings.put(Environment.CURRENT_SESSION_CONTEXT_CLASS, "thread");
        settings.put(Environment.HBM2DDL_AUTO, "create-drop");

        configuration.setProperties(settings);

        // add annotated classes
        configuration.addAnnotatedClass(Player.class);
        configuration.addAnnotatedClass(Mother.class);
        configuration.addAnnotatedClass(Daughter.class);
        configuration.addAnnotatedClass(Father.class);
        configuration.addAnnotatedClass(Son.class);
        configuration.addAnnotatedClass(Child.class);
        configuration.addAnnotatedClass(Parent.class);

        return configuration;
    }
}

如何在基于JAVA的spring配置中配置Hibernate Db连接设置

3 个答案: