Spring+Hibernate兩種方法實現增刪改查

? ? 首先，定義一個Customer的bean類，設置好Customer.hbm.xml文件。再定義好一個Dao接口。準備好一個jdbc.properties文件。 ?

?

第一種方法：

在dao類中定義一個HibernateTemplate類的對象，用該對象調用HibernateTemplate模板封裝好的方法，如下：

? Java代碼 ?

/***?

?*?hibernateTemplate的轉配模式?

?*/??

public?class?CustomerDaoImpl?implements?CustomerDao?{??

????//?設置hibernateTemplate屬性??

????private?HibernateTemplate?hibernateTemplate;??

??

????//?必須設置set方法??

????public?void?setHibernateTemplate(HibernateTemplate?hibernateTemplate)?{??

????????this.hibernateTemplate?=?hibernateTemplate;??

????}??

??

????//?插入方法??

????@Override??

????public?void?insert(Customer?entity)?{??

????????hibernateTemplate.save(entity);??

????}??

??

????//?刪除方法（按照試題刪除）??

????@Override??

????public?void?delete(Customer?entity)?{??

????????hibernateTemplate.delete(entity);??

??

????}??

??

????//?刪除方法，按id刪除，該方法不成功??

????@Override??

????public?void?deleteById(int?id)?{??

????????//?hibernateTemplate.??

????}??

??

????//?查詢所有記錄??

????@Override??

????public?List<Customer>?selectAll()?{??

????????//?TODO?Auto-generated?method?stub??

????????List<Customer>?entities?=?hibernateTemplate.find("from?Customer");??

????????return?entities;??

????}??

??

????//?按照id查找記錄??

????@Override??

????public?Customer?selectById(int?id)?{??

????????//?TODO?Auto-generated?method?stub??

????????List<Customer>?entitise?=?hibernateTemplate??

????????????????.find("from?Customer?where?id="?+?id);??

????????if?(entitise.size()?>?0)?{??

????????????Customer?entity?=?entitise.get(0);??

????????????return?entity;??

????????}??

????????return?null;??

????}??

??

????//?更新方法??

????@Override??

????public?void?update(Customer?entity)?{??

????????//?TODO?Auto-generated?method?stub??

????????hibernateTemplate.update(entity);??

????}??

??

}??

xml中的部分代碼如下：

Java代碼 ?

<!--?分散配置?-->??

????<context:property-placeholder?location="jdbc.properties"?/>??

??

????<!--?c3p0數據源?-->??

????<bean?id="dataSource"?class="com.mchange.v2.c3p0.ComboPooledDataSource">??

????????<!--?驅動程序?-->??

????????<property?name="driverClass">??

????????????<value>${jdbc.driverClass}</value>??

????????</property>??

??

????????<!--?連接的url地址?-->??

????????<property?name="jdbcUrl">??

????????????<value>${jdbc.url}</value>??

????????</property>??

??

????????<!--?連接的用戶名?-->??

????????<property?name="user">??

????????????<value>${jdbc.user}</value>??

????????</property>??

??

????????<!--?連接的密碼?-->??

????????<property?name="password">??

????????????<value>${jdbc.password}</value>??

????????</property>??

??

????????<!--?最大池數?-->??

????????<property?name="maxPoolSize">??

????????????<value>${c3p0.pool.max}</value>??

????????</property>??

??

????????<!--?最小池數?-->??

????????<property?name="minPoolSize">??

????????????<value>${c3p0.pool.min}</value>??

????????</property>??

????????<!--?默認初始化的池數?-->??

????????<property?name="initialPoolSize">??

????????????<value>${c3p0.pool.init}</value>??

????????</property>??

????</bean>??

??

??

????<bean?id="sessionFactory"??

????????class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">??

????????<!--?設置數據源?-->??

????????<property?name="dataSource"?ref="dataSource"?/>??

????????<!--?屬性設置?-->??

????????<property?name="hibernateProperties">??

????????????<props>??

????????????????<prop?key="hibernate.show_sql">${hibernate.show_sql}</prop>??

????????????????<prop?key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>??

????????????</props>??

????????</property>??

????????<!--?映射文件配置?-->??

????????<property?name="mappingResources">??

????????????<list>??

????????????????<value>cn/csdn/domain/Customer.hbm.xml</value>??

????????????</list>??

????????</property>??

??

????</bean>??

??

??

????<span?style="background-color:?#ff0000;"><!--?hibernate模板?-->??

????<bean?id="hibernateTemplate"?class="org.springframework.orm.hibernate3.HibernateTemplate">??

????????<property?name="sessionFactory"?ref="sessionFactory"?/>??

????</bean></span>??

??

????<!--?dao的操作的bean?-->??

????<bean?id="customerDaoImpl"?class="cn.csdn.dao.CustomerDaoImpl">??

????????<!--?注入依賴模板?-->??

????????<property?name="hibernateTemplate"?ref="hibernateTemplate"?/>??

????????</bean>??

?

第二種方法：

Dao實現類繼承HibernateDaoSupport類，該類是抽象類，該類中有一個HibernateTemplate的屬性，通過this.getHibernateTemplate()可獲得一個HibernateTemplate類的對象。

Dao實現類中的代碼如下：

Java代碼 ?

/**?

?*?繼承HibernateDaoSupport類，HibernateDaoSupport類中封裝了一個hibernateTemplate變量?

?*/??

public?class?CustomerDaoImpl1?extends?HibernateDaoSupport?implements??

????????CustomerDao?{??

??

????//?添加記錄??

????@Override??

????public?void?insert(Customer?entity)?{??

????????this.getHibernateTemplate().save(entity);??

????}??

??

????//?刪除記錄（按照實體刪除）??

????@Override??

????public?void?delete(Customer?entity)?{??

????????//?TODO?Auto-generated?method?stub??

????????this.getHibernateTemplate().delete(entity);??

??

????}??

??

????//?刪除記錄（按id刪除）,不成功??

????//??

????@Override??

????public?void?deleteById(int?id)?{??

????????//?TODO?Auto-generated?method?stub??

????????//?this.getHibernateTemplate().delete(entity);??

????}??

??

????//?查詢所有的記錄??

????@Override??

????public?List<Customer>?selectAll()?{??

????????//?TODO?Auto-generated?method?stub??

????????List<Customer>?entities?=?this.getHibernateTemplate().find(??

????????????????"from?Customer");??

????????return?entities;??

????}??

??

//??按照id查找記錄??

????@Override??

????public?Customer?selectById(int?id)?{??

????????//?TODO?Auto-generated?method?stub??

????????List<Customer>?entities=this.getHibernateTemplate().find("from?Customer?where?id="+id);??

????????if(entities.size()>0){??

????????????Customer?entity=entities.get(0);??

????????????return?entity;??

????????}??

????????return?null;??

????}??

??

//??更新的方法??

????@Override??

????public?void?update(Customer?entity)?{??

????????//?TODO?Auto-generated?method?stub??

????????this.getHibernateTemplate().update(entity);??

????}??

??

????}??

?

?xml中的部分代碼：

Java代碼 ?

<!--?分散配置?-->??

????<context:property-placeholder?location="jdbc.properties"?/>??

??

????<!--?c3p0數據源?-->??

????<bean?id="dataSource"?class="com.mchange.v2.c3p0.ComboPooledDataSource">??

????????<!--?驅動程序?-->??

????????<property?name="driverClass">??

????????????<value>${jdbc.driverClass}</value>??

????????</property>??

??

????????<!--?連接的url地址?-->??

????????<property?name="jdbcUrl">??

????????????<value>${jdbc.url}</value>??

????????</property>??

??

????????<!--?連接的用戶名?-->??

????????<property?name="user">??

????????????<value>${jdbc.user}</value>??

????????</property>??

??

????????<!--?連接的密碼?-->??

????????<property?name="password">??

????????????<value>${jdbc.password}</value>??

????????</property>??

??

????????<!--?最大池數?-->??

????????<property?name="maxPoolSize">??

????????????<value>${c3p0.pool.max}</value>??

????????</property>??

??

????????<!--?最小池數?-->??

????????<property?name="minPoolSize">??

????????????<value>${c3p0.pool.min}</value>??

????????</property>??

????????<!--?默認初始化的池數?-->??

????????<property?name="initialPoolSize">??

????????????<value>${c3p0.pool.init}</value>??

????????</property>??

????</bean>??

??

??

????<bean?id="sessionFactory"??

????????class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">??

????????<!--?設置數據源?-->??

????????<property?name="dataSource"?ref="dataSource"?/>??

????????<!--?屬性設置?-->??

????????<property?name="hibernateProperties">??

????????????<props>??

????????????????<prop?key="hibernate.show_sql">${hibernate.show_sql}</prop>??

????????????????<prop?key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>??

????????????</props>??

????????</property>??

????????<!--?映射文件配置?-->??

????????<property?name="mappingResources">??

????????????<list>??

????????????????<value>cn/csdn/domain/Customer.hbm.xml</value>??

????????????</list>??

????????</property>??

??

????</bean>??

??

??

????<!--?設置HibernateDaoSupport抽象類-->??

????<bean?id="hibernateDaoSupport"??

????????class="org.springframework.orm.hibernate3.support.HibernateDaoSupport"??

????????abstract="true">??

????????<property?name="sessionFactory"?ref="sessionFactory"?/>??

????</bean>?

????<!--?dao的操作的bean?-->??

????<bean?id="customerDaoImpl"?class="cn.csdn.dao.CustomerDaoImpl1"??

????????????parent="hibernateDaoSupport"?/>?

???? <bean id="adminDAO" class="com.haier.uhome.hr91.manager.dao.AdminDAO">
?? ??? ????? parent="hibernateDaoSupport"/>

或者如下：

<bean id="customerDaoImpl" class="cn.csdn.dao.CustomerDaoImpl1">
?? ??? ?<property name="sessionFactory">
?? ??? ??? ?<ref local="sessionFactory" />
?? ??? ?</property>
?? ?</bean>

<bean id="adminDAO" class="com.haier.uhome.hr91.manager.dao.AdminDAO">
?? ??? ?<property name="sessionFactory">
?? ??? ??? ?<ref local="sessionFactory" />
?? ??? ?</property>
?? ?</bean>

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