spring data jpa 是spring基于的orm框架，jpa规范的基础上封装的一套JPA应用框架
添加的相关依赖：
<properties>
<spring.version>4.2.4.RELEASE</spring.version>
<hibernate.version>5.0.7.Final</hibernate.version>
<slf4j.version>1.6.6</slf4j.version>
<log4j.version>1.2.12</log4j.version>
<c3p0.version>0.9.1.2</c3p0.version>
<mysql.version>5.1.6</mysql.version>
</properties>
<dependencies>
<!-- junit单元测试 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.9</version>
<scope>test</scope>
</dependency>
<!-- spring beg -->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.6.8</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<!-- spring end -->
<!-- hibernate beg -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>${hibernate.version}</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>${hibernate.version}</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>5.2.1.Final</version>
</dependency>
<!-- hibernate end -->
<!-- c3p0 beg -->
<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>${c3p0.version}</version>
</dependency>
<!-- c3p0 end -->
<!-- log end -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${log4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${slf4j.version}</version>
</dependency>
<!-- log end -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>${mysql.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>1.9.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>4.2.4.RELEASE</version>
</dependency>
<!-- el beg 使用spring data jpa 必须引入 -->
<dependency>
<groupId>javax.el</groupId>
<artifactId>javax.el-api</artifactId>
<version>2.2.4</version>
</dependency>
<dependency>
<groupId>org.glassfish.web</groupId>
<artifactId>javax.el</artifactId>
<version>2.2.4</version>
</dependency>
<!-- el end -->
</dependencies>
2.整合spring data jpa 与spring
1 <?xml version="1.0" encoding="UTF-8"?> 2 <beans xmlns="http://www.springframework.org/schema/beans" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" 4 xmlns:context="http://www.springframework.org/schema/context" 5 xmlns:jdbc="http://www.springframework.org/schema/jdbc" xmlns:tx="http://www.springframework.org/schema/tx" 6 xmlns:jpa="http://www.springframework.org/schema/data/jpa" xmlns:task="http://www.springframework.org/schema/task" 7 xsi:schemaLocation=" 8 http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd 9 http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd 10 http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd 11 http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc.xsd 12 http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd 13 http://www.springframework.org/schema/data/jpa 14 http://www.springframework.org/schema/data/jpa/spring-jpa.xsd"> 15 16 <!-- 1.dataSource 配置数据库连接池--> 17 <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> 18 <property name="driverClass" value="com.mysql.jdbc.Driver" /> 19 <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/jpa（数据库名）" /> 20 <property name="user" value="root" /> 21 <property name="password" value="111111"（数据库密码） /> 22 </bean> 23 24 <!-- 2.配置entityManagerFactory --> 25 <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> 26 <property name="dataSource" ref="dataSource" /> 27 <property name="packagesToScan" value="cn.itcast.entity（包名）" /> 28 <property name="persistenceProvider"> 29 <bean class="org.hibernate.jpa.HibernatePersistenceProvider" /> 30 </property> 31 <!--JPA的供应商适配器--> 32 <property name="jpaVendorAdapter"> 33 <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"> 34 <property name="generateDdl" value="false" /> 35 <property name="database" value="MYSQL" /> 36 <property name="databasePlatform" value="org.hibernate.dialect.MySQLDialect" /> 37 <property name="showSql" value="true" /> 38 </bean> 39 </property> 40 <property name="jpaDialect"> 41 <bean class="org.springframework.orm.jpa.vendor.HibernateJpaDialect" /> 42 </property> 43 </bean> 44 45 46 <!-- 3.事务管理器--> 47 <!-- JPA事务管理器 --> 48 <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"> 49 <property name="entityManagerFactory" ref="entityManagerFactory" /> 50 </bean> 51 52 <!-- 整合spring data jpa--> 53 <jpa:repositories base-package="cn.itcast.dao（自己所建的包）" 54 transaction-manager-ref="transactionManager" 55 entity-manager-factory-ref="entityManagerFactory"></jpa:repositories> 56 57 <!-- 4.txAdvice--> 58 <tx:advice id="txAdvice" transaction-manager="transactionManager"> 59 <tx:attributes> 60 <tx:method name="save*" propagation="REQUIRED"/> 61 <tx:method name="insert*" propagation="REQUIRED"/> 62 <tx:method name="update*" propagation="REQUIRED"/> 63 <tx:method name="delete*" propagation="REQUIRED"/> 64 <tx:method name="get*" read-only="true"/> 65 <tx:method name="find*" read-only="true"/> 66 <tx:method name="*" propagation="REQUIRED"/> 67 </tx:attributes> 68 </tx:advice> 69 70 <!-- 5.aop--> 71 <aop:config> 72 <aop:pointcut id="pointcut" expression="execution(* cn.itcast.service.*.*(..))" /> 73 <aop:advisor advice-ref="txAdvice" pointcut-ref="pointcut" /> 74 </aop:config> 75 76 <context:component-scan base-package="cn.itcast（自己所写的包）"></context:component-scan> 77 78 <!--组装其它 配置文件--> 79 80 </beans>
*因为所有的注解都是使用JPA规范提供的，所以在实体类导入注解包时使用javax.persistece下的