spring-hibernate整合

阅读目录

• 一、概述
• 二、整合步骤

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一、概述

　　Spring整合Hibernate有什么好处？

　　1、由IOC容器来管理Hibernate的SessionFactory

　　2、让Hibernate使用上Spring的声明式事务

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二、整合步骤

　　整合前准备：

　　持久化类：

@Entitypublic class Book{    private Integer id;    private String bookName;    private String isbn;    private int price;    private int stock;    public Integer getId()    {        return id;    }    public void setId(Integer id)    {        this.id = id;    }    public String getBookName()    {        return bookName;    }    public void setBookName(String bookName)    {        this.bookName = bookName;    }    public String getIsbn()    {        return isbn;    }    public void setIsbn(String isbn)    {        this.isbn = isbn;    }    public int getPrice()    {        return price;    }    public void setPrice(int price)    {        this.price = price;    }    public int getStock()    {        return stock;    }    public void setStock(int stock)    {        this.stock = stock;    }    public Book(Integer id, String bookName, String isbn, int price, int stock)    {        super();        this.id = id;        this.bookName = bookName;        this.isbn = isbn;        this.price = price;        this.stock = stock;    }}

　　Dao层：

public interface BookDao{    public String findBookById(int id);        public void saveBook(Book book);}

　　DaoImpl:

@Repositorypublic class BookDaoImpl implements BookDao{    @Autowired    private SessionFactory sessionFactory;        //获取和当前线程绑定的Seesion    private Session getSession()    {        return sessionFactory.getCurrentSession();    }    public String findBookById(int id)    {        String hql="SELECT bookName from Book where id=?";        Query query=getSession().createQuery(hql).setInteger(0, id);        String str= query.uniqueResult().toString();        return str;    }    public void saveBook(Book book)    {        getSession().save(book);    }}

　　Service层：

public interface BookService{    public String findBookById(int id);    public void saveBook(Book book);}

　　ServiceImpl：

@Servicepublic class BookServiceImpl implements BookService{    @Autowired    private BookDao bookDao;    public String findBookById(int id)    {        return bookDao.findBookById(id);    }    public void saveBook(Book book)    {        bookDao.saveBook(book);            }}

　　1、加入Hibernate

• 加入hibernate jar包
• 添加Hibernate的配置文件：hibernate.cfg.xml

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE hibernate-configuration PUBLIC        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"        "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"><hibernate-configuration>    <session-factory>        <!-- 配置Hibernate的基本属性 -->        <!-- 1.数据源配置到IOC容器中 -->        <!-- 2.关联的.hbm.xml也在IOC容器配置SessionFactory实例 -->        <!-- 3.配置Hibernate的基本属性：方言，SQL显示及格式化，生成数据表的策略以及二级缓存 -->        <property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property>        <property name="hibernate.show_sql">true</property>        <property name="hbm2ddl.auto">update</property>    </session-factory></hibernate-configuration>

• 编写持久化类对应的.hbm.xml文件

<?xml version="1.0"?><!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN""http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"><!-- Generated 2016-3-15 16:30:05 by Hibernate Tools 3.4.0.CR1 --><hibernate-mapping>    <class name="com.demo.ssm.po.Book" table="BOOK">        <id name="id" type="java.lang.Integer">            <column name="ID" />            <generator class="native" />        </id>        <property name="bookName" type="java.lang.String">            <column name="BOOK_NAME" />        </property>        <property name="isbn" type="java.lang.String">            <column name="ISBN" />        </property>        <property name="price" type="int">            <column name="PRICE" />        </property>        <property name="stock" type="int">            <column name="STOCK" />        </property>    </class></hibernate-mapping>

　　2、加入Spring

• 加入spring jar包
• 加入Spring配置文件

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns:tx="http://www.springframework.org/schema/tx"    xmlns:aop="http://www.springframework.org/schema/aop"    xmlns:context="http://www.springframework.org/schema/context"    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.1.xsd        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd">    <context:component-scan base-package="com.demo.ssm"></context:component-scan>    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">        <property name="driverClassName" value="com.mysql.jdbc.Driver" />        <property name="url" value="jdbc:mysql://localhost/test" />        <property name="username" value="root"></property>        <property name="password" value="281889"></property>    </bean>      <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean" lazy-init="false">        <!-- 注入datasource，给sessionfactoryBean内setdatasource提供数据源 -->        <property name="dataSource" ref="dataSource" />        <property name="configLocation" value="classpath:hibernate.cfg.xml"></property>        <!-- //加载实体类的映射文件位置及名称 -->        <property name="mappingLocations" value="classpath:com/demo/ssm/po/*.hbm.xml"></property>    </bean>          <!-- 配置Spring声明式事务 -->    <bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">        <property name="sessionFactory" ref="sessionFactory"></property>    </bean>     <!-- 配置事务事务属性 -->     <tx:advice id="txAdvice" transaction-manager="transactionManager">        <tx:attributes>            <tx:method name="get*" read-only="true"/>            <tx:method name="*"/>        </tx:attributes>    </tx:advice>    <!-- 配置事务切点，并把切点和事务属性关联起来 -->    <aop:config>        <aop:pointcut expression="execution(* com.demo.ssm.daoImpl.*.*(..))" id="txPointcut"/>        <aop:advisor advice-ref="txAdvice" pointcut-ref="txPointcut"/>    </aop:config></beans>

　　3、编写测试类

public class BookDaoImplTest{    private ApplicationContext context=null;    private BookService bookService=null;        {         context= new ClassPathXmlApplicationContext("applicationContext.xml");           bookService=context.getBean(BookService.class);    }    @Test    public void test()    {        DataSource dataSource=(DataSource) context.getBean(DataSource.class);        System.out.println(dataSource);    }    @Test    public void test2()    {        String bookName=bookService.findBookById(1);        System.out.println(bookName);    }        @Test    public void test3()    {        bookService.saveBook(new Book(2, "android源码分析", "1002", 45, 10));    }}