Question

我正在使用下面列出的代码中的配置。自动创建/删除功能接缝不能正常工作（它不会在数据库中创建/维护表（dataSource.setConnectionProperties（hibernateProperties（））;））

（当表已经在DB中创建时它可以工作吗？我认为这里没有考虑属性？），

配置

package com.parisibw.persistance;

import java.util.Properties;

import javax.sql.DataSource;

import org.hibernate.SessionFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.datasource.DriverManagerDataSource;
import org.springframework.orm.hibernate4.HibernateTransactionManager;
import org.springframework.orm.hibernate4.LocalSessionFactoryBuilder;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import com.parisibw.forms.Contact;

@Configuration
@EnableTransactionManagement
public class HibernateConfig {


    @Bean
    public SessionFactory sessionFactory() {
     return new LocalSessionFactoryBuilder(datasource()).addAnnotatedClasses(Account.class, Contact.class).buildSessionFactory();
    }

    @Bean
    public PlatformTransactionManager transactionManager() {
        return new HibernateTransactionManager(sessionFactory());
    }

    @Bean
    public Properties hibernateProperties() {
        Properties properties = new Properties();
        properties.put("hibernate.dialect", "org.hibernate.dialect.MySQL5Dialect");
        properties.put("hibernate.show_sql", "true");       
        properties.put("hibernate.hbm2ddl.auto", "create");

        //properties.put("hibernate.connection.driver_class", "org.h2.Driver");
        //properties.put("hibernate.connection.url", "jdbc:h2:db/test;CIPHER=AES");
        //properties.put("hibernate.connection.username", "root");
        //properties.put("hibernate.connection.password", "root root");
        //properties.put("hibernate.connection.pool_size", "1");        
        //properties.put("hibernate.format_sql", "true");
        //properties.put("hibernate.use_sql_comments", "true");
        //properties.put("hibernate.c3p0.min_size", "5");
        //properties.put("hibernate.c3p0.max_size", "20");
        //properties.put("hibernate.c3p0.timeout", "300");
        //properties.put("hibernate.c3p0.max_statements", "50");
        //properties.put("hibernate.c3p0.idle_test_period", "3000");
        //properties.put("hibernate.cache.use_second_level_cache", "true");
        //properties.put("hibernate.cache.region.factory_class",
        //"org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory");
        //properties.put("hibernate.cache.use_query_cache", "true");
        //properties.put("hibernate.cache.use_minimal_puts", "true");
        //properties.put("hibernate.max_fetch_depth", "10");        

        return properties;
    }

    @Bean
    public DataSource datasource() {
        final DriverManagerDataSource dataSource = new DriverManagerDataSource();
            dataSource.setDriverClassName("com.mysql.jdbc.Driver");
            dataSource.setUrl("jdbc:mysql://dbpath");
            dataSource.setUsername("username");
            dataSource.setPassword("password");
            dataSource.setConnectionProperties(hibernateProperties());
            return dataSource;
    }

}

帐户

@Entity @Table(name="T_ACCOUNT")
public class Account {

    @Id 
    private long id;
    @Column
    private double cashBalance;
    @Column
    private String name;

    public long getId() {
          return id;
    }
    public void setId(long id) {
          this.id = id;
    }
    public double getCashBalance() {
          return cashBalance;
    }
    public void setCashBalance(double cashBalance) {
        this.cashBalance = cashBalance;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }

    @Override
    public String toString() {
        return  "id: " + id + ", balance: " + cashBalance + ", name: " + name;

    }

测试类

@RequestMapping(value = "/test", method = RequestMethod.GET)
public String homeTest(Model model) {
    Account account = new Account();

    try{    
        sessionFactory = new HibernateConfig().sessionFactory();
    Session session = sessionFactory.openSession();
    session.beginTransaction();
    //account.setId(2);
    account.setName("Marcin");
    account.setCashBalance(1200);
    session.save(account);
    session.getTransaction().commit();
    session.close();

    }catch (Exception e) {
        logger.info(e.toString());
    }

    model.addAttribute("serverTime" );
    return "test";
}

Answer 1

您将hibernate属性作为数据源的连接属性传递。相反，它们应该传递给sessionfactory。

@Bean
public SessionFactory sessionFactory() {
 return new LocalSessionFactoryBuilder(datasource())
   .addAnnotatedClasses(Account.class, Contact.class)
   .addProperties(hibernateProperties())
   .buildSessionFactory();
}

请参阅http://docs.jboss.org/hibernate/core/3.6/javadocs/org/hibernate/cfg/Configuration.html?is-external=true（LocalSessionFactoryBuilder的父类）

Answer 2

我在这里看到的第一个问题是你明确地创建了一个新的HibernateConfig而不是让spring自动装配它。因此，在您的测试类中添加以下属性：

@Autowire
private SessionFactory sessionFactory;

看起来更深入，看起来你可能想要读一点关于Spring和IOC的内容，因为你有点用奇怪的方式做这件事，看起来你可能有点困惑。你想要做的一切实际上都已经融入了Spring，所以你有点重新发明轮子。简而言之，您正在创建新的事物实例，而不是从spring的上下文中获取它们，因此它现在可以为您提供连接方式。

看看这是如何完成的（是的，它有其他问题，但你应该能够得到一般的想法）：Proper way to autowire a Hibernate Session in a Spring Transaction JUnit test

spring 3.1.0 Release Hibernate 4.1.2 Final - 通过注释进行数据库配置如何设置属性

2 个答案: