spring mvc之jpa的配置

上面已經講了spring mvc各個方面的配置，還差緩存和驗證碼的方面，這篇我講一下jpa的配置，話不多說，貼代碼。

spring-data-commons-core-1.4.0.RC1.jar和spring-data-jpa-1.2.0.RC1是必須的，你也可以自己挑選別的。

頭部聲明

xmlns:jpa="http://www.springframework.org/schema/data/jpa"
http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
			http://www.springframework.org/schema/data/repository
            http://www.springframework.org/schema/data/repository/spring-repository-1.6.xsd

全部配置

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context"
	xmlns:p="http://www.springframework.org/schema/p" xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:jpa="http://www.springframework.org/schema/data/jpa"
	xmlns:cache="http://www.springframework.org/schema/cache"	
	xsi:schemaLocation="
         http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
			http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
			http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
			http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
			http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
			http://www.springframework.org/schema/data/repository
            http://www.springframework.org/schema/data/repository/spring-repository-1.6.xsd">
    
    <context:annotation-config />
    
    <!-- 自動掃描並註解 -->
    <context:component-scan base-package="com.spring" />
    <!-- 加載hibenate.properties -->
    <context:property-placeholder location="classpath:/hibernate.properties" />
    
    <!-- 配置數據源 -->
    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">  
        <!-- 基本屬性 url、user、password --> 
        <property name="url" value="${dataSource.url}" />  
        <property name="username" value="${dataSource.username}" />  
        <property name="password" value="${dataSource.password}" /> 
        <property name="driverClassName" value="${dataSource.driverClassName}" />
    </bean>
    	
	 <bean id="entityManagerFactory"
        class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="persistenceProvider" ref="persistenceProvider" />
        <property name="jpaVendorAdapter" ref="jpaVendorAdapter" />
        <property name="jpaDialect" ref="jpaDialect" />
 
        <property name="jpaProperties">
            <props>
               <prop key="hibernate.dialect">${dataSource.dialect}</prop>
			   <prop key="hibernate.hbm2ddl.auto">${dataSource.hbm2ddl.auto}</prop>
			   <prop key="hibernate.hbm2ddl.auto">update</prop>
            </props>
        </property>
        
        <property name="packagesToScan">
			<list>
				<value>com.spring.entity</value>
		    </list>
		</property>	       
    </bean>
	
	<bean id="persistenceProvider"
        class="org.hibernate.ejb.HibernatePersistence" />
         
    <bean id="jpaVendorAdapter"
        class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
        <property name="database" value="MYSQL" />
    </bean>
     
    <bean id="jpaDialect"
        class="org.springframework.orm.jpa.vendor.HibernateJpaDialect" />
 
    <jpa:repositories base-package="com.spring.dao"
        entity-manager-factory-ref="entityManagerFactory" 
        transaction-manager-ref="txManager" /> 

    <bean id="txManager"
        class="org.springframework.orm.jpa.JpaTransactionManager">
        <property name="entityManagerFactory"
            ref="entityManagerFactory" />
    </bean>
	
	<tx:annotation-driven transaction-manager="txManager" />
	    
	<aop:config>
		<aop:pointcut expression="execution(public * com.spring.service.impl.*.*(..))"
			id="businessService" />
		<aop:advisor advice-ref="txAdvice" pointcut-ref="businessService" />
		
		    <aop:aspect id="aspect" ref="aspectBean">
		    <aop:pointcut expression="execution(public * com.spring.service.impl.*.*(..))" id="businessService1"/>
		    <aop:before pointcut-ref="businessService1" method="doBefore"/>
		    <aop:after-throwing  pointcut-ref="businessService1" throwing="e" method="doAfterThrow" />    
            <aop:after pointcut-ref="businessService1" method="doAfter"/>    
            <aop:around pointcut-ref="businessService1" method="doAround"/>            
		</aop:aspect> 
		
	</aop:config> 
	
	<bean id="aspectBean" class="com.spring.util.Aspect" />
	 
	 <tx:advice id="txAdvice" transaction-manager="txManager">
		<tx:attributes>	
		
		    <tx:method name="find*" read-only="true" propagation="NOT_SUPPORTED" />
			<tx:method name="*" />   			
			<tx:method name="get*" propagation="REQUIRED" read-only="true" />
            <tx:method name="del*" propagation="REQUIRED" />
            <tx:method name="save*" propagation="REQUIRED" />
            <tx:method name="update*" propagation="REQUIRED" />        
            <tx:method name="add*" propagation="REQUIRED"/> 
                
		</tx:attributes>
	</tx:advice>
</beans>

jpa的使用

import java.util.List;

import org.springframework.data.jpa.repository.Modifying;
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.Repository;

import com.spring.entity.User;

public interface LoginDao extends Repository<User, Integer>{
	
	@Query("select u from User u where u.name = ?1")
	public User findByName(String loginName);
	
	@Modifying
	@Query("update User u set u.name=?1 where u.id=1")
	public int update(String name);
	
	public User findById(int id);
		
}

這個是我的學習裏面的，大家如果不明白，看看我的前幾篇。