<?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:context="http://www.springframework.org/schema/context"

 xmlns:tx="http://www.springframework.org/schema/tx"

 xmlns:jpa="http://www.springframework.org/schema/data/jpa"

 xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.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/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd

 http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">

 <!-- 配置自动扫描的包 -->

 <context:component-scan base-package="com.atguigu.springdata"></context:component-scan>

 <!-- 1. 配置数据源 -->

 <context:property-placeholder location="classpath:db.properties"/>

 <bean id="dataSource"

 class="com.mchange.v2.c3p0.ComboPooledDataSource">

 <property name="user" value="${jdbc.user}"></property>

 <property name="password" value="${jdbc.password}"></property>

 <property name="driverClass" value="${jdbc.driverClass}"></property>

 <property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property>

 <!-- 配置其他属性 -->

 </bean>

 <!-- 2. 配置 JPA 的 EntityManagerFactory -->

 <bean id="entityManagerFactory"

 class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">

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

 <property name="jpaVendorAdapter">

 <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"></bean>

 </property>

 <property name="packagesToScan" value="com.atguigu.springdata"></property>

 <property name="jpaProperties">

 <props>

 <!-- 二级缓存相关 -->

 <!--

 <prop key="hibernate.cache.region.factory_class">org.hibernate.cache.ehcache.EhCacheRegionFactory</prop>

 <prop key="net.sf.ehcache.configurationResourceName">ehcache-hibernate.xml</prop>

 -->

 <!-- 生成的数据表的列的映射策略 -->

 <prop key="hibernate.ejb.naming_strategy">org.hibernate.cfg.ImprovedNamingStrategy</prop>

 <!-- hibernate 基本属性 -->

 <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5InnoDBDialect</prop>

 <prop key="hibernate.show_sql">true</prop>

 <prop key="hibernate.format_sql">true</prop>

 <prop key="hibernate.hbm2ddl.auto">update</prop>

 </props>

 </property>

 </bean>

 <!-- 3. 配置事务管理器 -->

 <bean id="transactionManager"

 class="org.springframework.orm.jpa.JpaTransactionManager">

 <property name="entityManagerFactory" ref="entityManagerFactory"></property>

 </bean>

 <!-- 4. 配置支持注解的事务 -->

 <tx:annotation-driven transaction-manager="transactionManager"/>

 <!-- 5. 配置 SpringData -->

 <!-- 加入 jpa 的命名空间 -->

 <!-- base-package: 扫描 Repository Bean 所在的 package -->

 <jpa:repositories base-package="com.atguigu.springdata"

 entity-manager-factory-ref="entityManagerFactory"></jpa:repositories>

 </beans>

 jdbc.user=root

 jdbc.password=123456

 jdbc.jdbcUrl=jdbc:mysql:///jpa

 jdbc.driverClass=com.mysql.jdbc.Driver

package com.atguigu.springdata;

import java.util.Date;

import javax.persistence.Entity;

import javax.persistence.GeneratedValue;

import javax.persistence.Id;

import javax.persistence.Table;

@Table(name="t_person")

@Entity

public class Person {

private Integer id;

private String lastname;

private String email;

private Date birthday;

@GeneratedValue

@Id

public Integer getId() {

return id;

}

public void setId(Integer id) {

this.id = id;

}

public String getLastname() {

return lastname;

}

public void setLastname(String lastname) {

this.lastname = lastname;

}

public String getEmail() {

return email;

}

public void setEmail(String email) {

this.email = email;

}

public Date getBirthday() {

return birthday;

}

public void setBirthday(Date birthday) {

this.birthday = birthday;

}

@Override

public String toString() {

return "Person [id=" + id + ", lastname=" + lastname + ", email=" + email + ", birthday=" + birthday + "]";

}

}

package com.atguigu.springdata.dao;

import org.springframework.data.repository.Repository;

import com.atguigu.springdata.Person;

public interface PersonRespository extends Repository<Person,Integer>{

Person getByLastname(String lastname);

}

 package com.atguigu.springdata.dao;

 import org.springframework.data.repository.RepositoryDefinition;

 import com.atguigu.springdata.Person;

 @RepositoryDefinition(domainClass=Person.class,idClass=Integer.class)

 public interface PersonRepository2 {

 Person getByLastname(String lastname);

 }