我想将 JPA 与 Spring 数据一起使用。
pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>net.betlista</groupId>
<artifactId>tests-jpa-spring</artifactId>
<version>0.0.1-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-jpa</artifactId>
<version>1.3.0.RELEASE</version>
<exclusions>
<exclusion>
<artifactId>spring-core</artifactId>
<groupId>org.springframework</groupId>
</exclusion>
<exclusion>
<artifactId>spring-context</artifactId>
<groupId>org.springframework</groupId>
</exclusion>
<exclusion>
<artifactId>spring-aop</artifactId>
<groupId>org.springframework</groupId>
</exclusion>
<exclusion>
<artifactId>spring-tx</artifactId>
<groupId>org.springframework</groupId>
</exclusion>
<exclusion>
<artifactId>spring-beans</artifactId>
<groupId>org.springframework</groupId>
</exclusion>
<exclusion>
<artifactId>spring-orm</artifactId>
<groupId>org.springframework</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>3.2.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>3.2.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>3.2.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>3.2.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>3.2.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>3.2.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>3.2.2.RELEASE</version>
</dependency>
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib</artifactId>
<version>2.2.2</version>
</dependency>
<dependency>
<groupId>org.hsqldb</groupId>
<artifactId>hsqldb</artifactId>
<version>2.2.9</version>
<scope>system</scope>
<systemPath>c:\JavaLibs\hsqldb-2.2.9\hsqldb.jar</systemPath>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>4.1.10.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>4.1.10.Final</version>
</dependency>
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.4</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.10</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>3.2.2.RELEASE</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<inherited>true</inherited>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.5.1</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
<encoding>UTF-8</encoding>
<showWarnings>true</showWarnings>
<showDeprecation>true</showDeprecation>
</configuration>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>Apache Nexus</id>
<url>https://repository.apache.org/content/repositories/snapshots/</url>
<releases>
<enabled>false</enabled>
</releases>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
<repository>
<id>jboss-public-repository-group</id>
<name>JBoss Public Maven Repository Group</name>
<url>https://repository.jboss.org/nexus/content/groups/public-jboss/</url>
<layout>default</layout>
<releases>
<enabled>true</enabled>
<updatePolicy>never</updatePolicy>
</releases>
<snapshots>
<enabled>true</enabled>
<updatePolicy>never</updatePolicy>
</snapshots>
</repository>
</repositories>
</project>
应用程序上下文.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:context="http://www.springframework.org/schema/context"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:util="http://www.springframework.org/schema/util"
xmlns:c="http://www.springframework.org/schema/c"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:jdbc="http://www.springframework.org/schema/jdbc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.1.xsd
http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-beans-3.1.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
">
<tx:annotation-driven transaction-manager="transactionManager" />
<!-- class="org.springframework.jdbc.datasource.DataSourceTransactionManager" -->
<bean id="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager"
p:sessionFactory-ref="sessionFactory" />
<bean
scclass="org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate"
c:dataSource-ref="dataSource" />
<bean class="org.springframework.jdbc.core.JdbcTemplate"
c:dataSource-ref="dataSource" />
<util:properties id="hibernateProperties">
<prop key="hibernate.dialect">org.hibernate.dialect.HSQLDialect</prop>
<prop key="hibernate.show_sql">false</prop>
<prop key="hibernate.connection.release_mode">auto</prop>
<prop key="hibernate.connection.autocommit">false</prop>
<prop key="hibernate.default_batch_fetch_size">32</prop>
<prop key="hibernate.jdbc.batch_size">32</prop>
</util:properties>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<!-- <property name="mappingResources"> -->
<!-- <list> -->
<!-- </list> -->
<!-- </property> -->
<!-- <property name="annotatedClasses"> -->
<!-- <util:list> -->
<!-- </util:list> -->
<!-- </property> -->
<property name="hibernateProperties" ref="hibernateProperties" />
</bean>
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="org.hsqldb.jdbc.JDBCDriver" />
<!-- <property name="url" value="jdbc:hsqldb:file:src\main\resources\db\person" /> -->
<property name="url" value="jdbc:hsqldb:file:c:/Betlista/WSs/Wicket/tests-jpa-spring/src/main/resources/db/person" />
<property name="username" value="user" />
<property name="password" value="password" />
</bean>
<bean
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"
id="entityManagerFactory">
<property name="dataSource" ref="dataSource" />
</bean>
<context:spring-configured />
<context:annotation-config />
</beans>
META-INF/persistence.xml
<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
version="1.0"
xsi:schemaLocation="
http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd
">
<persistence-unit name="JpaPersistenceUnit"
transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
</persistence-unit>
</persistence>
实体类
package net.betlista.tests.jpa.entity;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;
@Entity
@Table( name = "PERSON" )
public class Person {
@Id
@GeneratedValue
private Long id;
@Column
private String name;
@Column
private int age;
public Long getId() {
return this.id;
}
public void setId( final Long id ) {
this.id = id;
}
public String getName() {
return this.name;
}
public void setName( final String name ) {
this.name = name;
}
public int getAge() {
return this.age;
}
public void setAge( final int age ) {
this.age = age;
}
}
服务
package net.betlista.tests.jpa.service;
import net.betlista.tests.jpa.entity.Person;
import java.util.List;
import org.springframework.stereotype.Service;
@Service
public interface IPersonService {
List<Person> getAll();
Person create( Person p );
}
执行
package net.betlista.tests.jpa.service;
import net.betlista.tests.jpa.dao.IPersonRepository;
import net.betlista.tests.jpa.entity.Person;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
@Service
@Transactional
public class PersonService implements IPersonService {
@Autowired
IPersonRepository personRepository;
// @Autowired
// EntityManagerFactory entityManagerFactory;
@Override
public List<Person> getAll() {
return this.personRepository.findAll();
}
@Transactional
@Override
public Person create( final Person p ) {
// final EntityTransaction transaction = this.entityManagerFactory.createEntityManager().getTransaction();
// transaction.begin();
final Person savedPerson = this.personRepository.saveAndFlush( p );
// transaction.commit();
return savedPerson;
}
}
存储库
package net.betlista.tests.jpa.dao;
import net.betlista.tests.jpa.entity.Person;
import org.springframework.data.jpa.repository.JpaRepository;
public interface IPersonRepository extends JpaRepository<Person, Long> {
}
配置
package net.betlista.tests.jpa.dao;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.ImportResource;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
@Configuration
@EnableJpaRepositories
@ComponentScan( "net.betlista.tests.jpa" )
@ImportResource( "classpath:applicationContext.xml" )
public class JavaConfig {
}
最后测试
package net.betlista.tests.jpa2;
import net.betlista.tests.jpa.dao.JavaConfig;
import net.betlista.tests.jpa.entity.Person;
import net.betlista.tests.jpa.service.IPersonService;
import java.util.List;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
@RunWith( SpringJUnit4ClassRunner.class )
@ContextConfiguration( classes = { JavaConfig.class } )
public class PersonServiceTest {
@Autowired
IPersonService personService;
@Test
public void testGetAll() {
final List<Person> allPersons = this.personService.getAll();
Assert.assertNotNull( allPersons );
System.out.println( "person count: " + allPersons.size() );
}
@Test
public void testCreate() {
final Person person = new Person();
person.setName( "B" );
person.setAge( 22 );
this.personService.create( person );
}
}
为了验证它是否是 HSQLDB 问题的可能性,我迁移到了 MySQL,但我仍然遇到同样的问题。我刚刚更换了dataSource
配置。
<bean>
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/person" />
<property name="username" value="root" />
<property name="password" value="pass" />
</bean>