Spring JPA基于Maven的环境搭建

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Spring JPA

JPA Spring Hibernate Maven

要使用Spring JPA，首先就得配置依赖包，Spring的版本为3.2.3.RELEASE（使用低版本可能只支持JPA1.X标准），JPA只是一个标准，Hibernate是一个优秀的实现，就用它吧。

首先，建一个maven项目，就叫jpa吧，注意类型为pom，然后添加两个module：jpa-core，jpa-dao。jpa-dao依赖jpa-core。

jpa下的pom.xml配置依赖包，这样两个项目jpa-core及jpa-dao都会自动依赖父项目的依赖。maven里依赖是会传递的。

<properties>
	<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
	<org.springframework.version>3.2.3.RELEASE</org.springframework.version>
	<poi.version>3.8</poi.version>
</properties>

<repositories>
	<repository>
		<id>spring-milestone</id>
		<url>http://repo.springsource.org/libs-milestone</url>
	</repository>
</repositories>

<dependencies>

	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-test</artifactId>
		<version>${org.springframework.version}</version>
	</dependency>
	<dependency>
		<groupId>com.jayway.jsonpath</groupId>
		<artifactId>json-path</artifactId>
		<version>0.8.1</version>
	</dependency>

	<!-- log -->
	<dependency>
		<groupId>org.slf4j</groupId>
		<artifactId>slf4j-api</artifactId>
		<version>1.6.1</version>
	</dependency>
	<dependency>
		<groupId>org.slf4j</groupId>
		<artifactId>slf4j-log4j12</artifactId>
		<version>1.6.1</version>
	</dependency>
	<dependency>
		<groupId>log4j</groupId>
		<artifactId>log4j</artifactId>
		<version>1.2.16</version>
	</dependency>
	<!-- log -->

	<!-- 测试用 junit4 -->
	<dependency>
		<groupId>junit</groupId>
		<artifactId>junit</artifactId>
		<version>4.11</version>
		<scope>test</scope>
	</dependency>
	<!-- 测试用 junit4 -->
	
	<!-- mysql driver -->
	<dependency>
		<groupId>mysql</groupId>
		<artifactId>mysql-connector-java</artifactId>
		<version>5.1.25</version>
	</dependency>
	<!-- mysql driver -->
	
	<!-- datasoure pool -->
	<dependency>
		<groupId>commons-dbcp</groupId>
		<artifactId>commons-dbcp</artifactId>
		<version>1.4</version>
	</dependency>
	<dependency>
		<groupId>commons-pool</groupId>
		<artifactId>commons-pool</artifactId>
		<version>1.5.4</version>
	</dependency>
	<!-- datasoure pool -->
	
	
	<dependency>
		<groupId>org.aspectj</groupId>
		<artifactId>aspectjweaver</artifactId>
		<version>1.6.11</version>
	</dependency>

	<!-- cglib -->
	<dependency>
		<groupId>cglib</groupId>
		<artifactId>cglib</artifactId>
		<version>2.2.2</version>
	</dependency>
	<!-- cglib -->
	
	<!-- Spring -->
	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-beans</artifactId>
		<version>${org.springframework.version}</version>
	</dependency>
	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-aop</artifactId>
		<version>${org.springframework.version}</version>
	</dependency>
	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-context</artifactId>
		<version>${org.springframework.version}</version>
	</dependency>
	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-orm</artifactId>
		<version>${org.springframework.version}</version>
	</dependency>
	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-tx</artifactId>
		<version>${org.springframework.version}</version>
	</dependency>
	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-context-support</artifactId>
		<version>${org.springframework.version}</version>
	</dependency>
	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-core</artifactId>
		<version>${org.springframework.version}</version>
	</dependency>
	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-jdbc</artifactId>
		<version>${org.springframework.version}</version>
	</dependency>
	<!-- Spring -->
	
	<!-- JPA -->
	<dependency>
		<groupId>org.hibernate.javax.persistence</groupId>
		<artifactId>hibernate-jpa-2.1-api</artifactId>
		<version>1.0.0.Final</version>
	</dependency>
	<dependency>
		<groupId>xom</groupId>
		<artifactId>xom</artifactId>
		<version>1.1</version>
	</dependency>
	<dependency>
		<groupId>org.springframework.data</groupId>
		<artifactId>spring-data-commons</artifactId>
		<version>1.5.2.RELEASE</version>
	</dependency>
	<dependency>
		<groupId>org.springframework.data</groupId>
		<artifactId>spring-data-jpa</artifactId>
		<version>1.3.4.RELEASE</version>
	</dependency>
	<dependency>
	<groupId>org.hibernate</groupId>
		<artifactId>hibernate-entitymanager</artifactId>
		<version>4.2.4.Final</version>
    </dependency>
    <!-- JPA -->
	
</dependencies>

JPA有1.X版本和2.X版本的区别，依赖包千万不要用混了，不然各种奇怪的异常都会发生。

jpa-dao配置provider和受管控的Bean：

src/main/resources/META-INF/persistence.xml

<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
	version="2.0">
	<persistence-unit name="SimplePU" transaction-type="RESOURCE_LOCAL">
		<provider>org.hibernate.ejb.HibernatePersistence</provider>
		<class>com.tipthink.model.User</class>
	</persistence-unit>
</persistence>

红色的是受管控的模型类，下一章会说到。

jpa-dao配置数据源properties文件src/main/resources/datasource.properties

jdbc.url=jdbc:mysql://192.168.11.148:3306/jpatest?autoReconnect=true
jdbc.username=root
jdbc.password=
jdbc.maxActive=50

jpa-dao的DAO配置：

src/main/resources/applicationContext-jpa.xml

<?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:p="http://www.springframework.org/schema/p"
	xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:aop="http://www.springframework.org/schema/aop"
	xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context"
	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-3.0.xsd
		http://www.springframework.org/schema/mvc
		http://www.springframework.org/schema/mvc/spring-mvc-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/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.xsd      
		http://www.springframework.org/schema/aop      
		http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
	
	<context:component-scan base-package="com.tipthink.dao" />
	
	<!-- 定义受环境影响易变的变量 -->
    <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_OVERRIDE" />
        <property name="ignoreResourceNotFound" value="true" />
        <property name="locations">
            <list>
                <value>classpath*:/datasource.properties</value>
            </list>
        </property>
    </bean>
    
	<!-- DataSource数据源 -->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
        <property name="url" value="${jdbc.url}"/>
        <property name="username" value="${jdbc.username}" />
        <property name="password"  value="${jdbc.password}" />
        <property name="maxActive" value="${jdbc.maxActive}" />
    </bean>
    
	<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
		<constructor-arg ref="dataSource" />
	</bean>
	
	<tx:annotation-driven transaction-manager="transactionManager" />
	
	<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
		<property name="entityManagerFactory" ref="entityManagerFactory" />
		<property name="jpaDialect" ref="jpaDialect" />
	</bean>
	
	<bean id="jpaDialect" class="org.springframework.orm.jpa.vendor.HibernateJpaDialect"></bean>
	
	<bean id="entityManagerFactory"
		class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
		<property name="persistenceUnitName" value="SimplePU"/>
		<property name="dataSource" ref="dataSource"/>
		<property name="jpaDialect" ref="jpaDialect" />
		<property name="jpaVendorAdapter"> 
			<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"> 
				<property name="showSql" value="true"/>
				<property name="generateDdl" value="true"/>
			</bean>
		</property>
	</bean>

	<jpa:repositories base-package="com.tipthink.dao" entity-manager-factory-ref="entityManagerFactory" transaction-manager-ref="transactionManager"/>
	
</beans>

使用Maven配置的，基于hibernate实现的Spring JPA环境就搭建好了。

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第一章，第一节，Spring Data JPA是什么

2013-09-02 14:29
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分类:编程语言
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1 楼 airu 2013-09-27

很好的配置，非常好。

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