spring以annotation的方式整合hibernate
整合步骤一、加入jar包，这个大家都会。一般加jar的规则
整合步骤二、在spring里面配置连接dbcp连接池，这一块要用到
commons-collections.jar
commons-logging-1.0.4.jar
commons-dbcp.jar
commons-pool.jar
下面来看一下spring配置文件里面是怎么样来进行配置的：
<bean id="myDataSource" value="com.microsoft.sqlserver.jdbc.SQLServerDriver" /><property name="url" value="jdbc:sqlserver://localhost:1433;databaseName=wangying" /><property name="username" value="sa" /><property name="password" value="bbshop" /><!-- 连接池启动时的初始值 --><property name="initialSize" value="1" /><!-- 连接池的最大值 --><property name="maxActive" value="500" /><!-- 最大空闲值.当经过一个高峰时间后，连接池可以慢慢将已经用不到的连接慢慢释放一部分，一直减少到maxIdle为止 --><property name="maxIdle" value="2" /><!-- 最小空闲值.当空闲的连接数少于阀值时，连接池就会预申请去一些连接，以免洪峰来时来不及申请 --><property name="minIdle" value="1" /></bean>
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整合步骤三、配置hibernate的sessionFactory
<bean id="sessionFactory"ref="myDataSource" /><property name="packagesToScan"><list><value>com.lushuifa.po</value></list></property><property name="hibernateProperties"><props><prop key="hibernate.dialect">org.hibernate.dialect.SQLServerDialect</prop><prop key="hibernate.hbm2ddl.auto">update</prop><prop key="hibernate.show_sql">true</prop><prop key="hibernate.format_sql">true</prop></props></property></bean>
?利用packagesToScan来扫描实体bean的位置，这里用到的是AnnotationSessionFactoryBean是注解的方式。? annotatedClasses也可以，但是要精确到某一个特定的类。
整合步骤四、配置hibernate的事务
<!-- 配置事务管理器 --><bean id="hibernateTransaction"ref="sessionFactory"></property></bean> <!-- 提供事务的annotation支持 --><tx:annotation-driven transaction-manager="hibernateTransaction" />
?整合步骤五、提供测试po类
package com.lushuifa.po;import java.io.Serializable;import javax.persistence.Entity;import javax.persistence.GeneratedValue;import javax.persistence.GenerationType;import javax.persistence.Id;import javax.persistence.Table;@Entity@Table(name="t_users_lushuifa")public class Users implements Serializable{ private static final long serialVersionUID = 1L;private int id;private String userName;@Id@GeneratedValue(strategy=GenerationType.IDENTITY) public int getId() { return id; } public void setId(int id) { this.id = id; } public String getUserName() { return userName; } public void setUserName(String userName) { this.userName = userName; } }?
?整合步骤六、提供测试dao
dao接口package com.lushuifa.dao;import java.util.List;import com.lushuifa.po.Users;public interface UserDao{/** * 添加用户 * @param user */public void addUsers(Users user);public void delUsers(int id);public List<Users> getUserList();public Users findUserById(int id);}dao实现package com.lushuifa.dao;import java.util.List;import javax.annotation.Resource;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.josql.Query;import org.josql.QueryExecutionException;import org.josql.QueryParseException;import org.springframework.transaction.annotation.Transactional;import com.lushuifa.po.Users;@Transactionalpublic class UserDaoImpl implements UserDao{@Resourceprivate SessionFactory sessionFactory; public SessionFactory getSessionFactory() { return sessionFactory; } public void setSessionFactory(SessionFactory sessionFactory) { this.sessionFactory = sessionFactory; }/* (non-Javadoc) * @see com.lushuifa.dao.UserDao#addUsers(com.lushuifa.po.Users) */public void addUsers(Users user){try{ this.sessionFactory.getCurrentSession().persist(user);}catch (Exception e){e.printStackTrace();}}/* (non-Javadoc) * @see com.lushuifa.dao.UserDao#delUsers(int) */public void delUsers(int id){try{ this.sessionFactory.getCurrentSession().delete(this.findUserById(id));}catch (Exception e){e.printStackTrace();}}/* (non-Javadoc) * @see com.lushuifa.dao.UserDao#getUserList() */public List<Users> getUserList(){ List<Users> userList = this.sessionFactory.getCurrentSession().createQuery("from Users").list(); return userList; }/* (non-Javadoc) * @see com.lushuifa.dao.UserDao#findUserById(int) */public Users findUserById(int id){Users user = (Users) this.sessionFactory.getCurrentSession().load(Users.class, 1);return user;}/* (non-Javadoc) * @see com.lushuifa.dao.UserDao#findUserForJosql(int) */public List findUserForJosql(int userid){Query q = new Query();List user = null;try { q.parse("select * from Users"); q.setVariable("userid", userid); user =q.execute(this.getUserList()).getResults(); } catch (QueryParseException e) { e.printStackTrace(); } catch (QueryExecutionException e) { e.printStackTrace(); }return user;}public static void main(String[] args) { System.out.println(new UserDaoImpl()); }}?
?整合步骤六、提供junit类
package com.lushuifa.dao;import javax.annotation.Resource;import org.junit.Test;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import com.lushuifa.po.Users;public class UserDaoTest{private UserDao userDao = getUserDao();private UserDao getUserDao() { ApplicationContext ac = new ClassPathXmlApplicationContext("spring_lushuifa.xml"); userDao = (UserDao) ac.getBean("userDao"); return userDao; }@Testpublic void testAddUsers(){Users user = new Users();user.setUserName("标标网");userDao.addUsers(user);System.out.println("添加成功");}@Testpublic void testDelUsers(){userDao.delUsers(1);System.out.println("删除成功！");}@Testpublic void testJosql(){userDao.findUserForJosql(2);}}?
到此结束