Spring整合Hibernate详细步骤
2016-03-20 09:58
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阅读目录
一、概述
二、整合步骤
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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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持久化类:
Dao层:
DaoImpl:
Service层:
ServiceImpl:
添加Hibernate的配置文件:hibernate.cfg.xml
编写持久化类对应的.hbm.xml文件
加入Spring配置文件
一、概述
二、整合步骤
回到顶部
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:
@Entity public 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:
@Repository public 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:
@Service public 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.hibernate4.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.hibernate4.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)); } }
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