我正在创建一个要在liferay 6.2中加载的portlet。 portlet是一个Spring portlet，它有自己的db并使用jpa。
我的pom是：
<?xml version="1.0"?>
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>it.realt</groupId>
<artifactId>MyPos</artifactId>
<packaging>war</packaging>
<name>MyPos Portlet</name>
<version>1.0-SNAPSHOT</version>
<properties>
<!-- original spring version 3.0.7.RELEASE -->
<spring.version>4.2.4.RELEASE</spring.version>
<liferay.maven.plugin.version>6.2.10.15</liferay.maven.plugin.version>
<liferay.version>6.2.4</liferay.version>
<liferay.auto.deploy.dir>C:\liferay-portal-6.2-ce-ga5\deploy</liferay.auto.deploy.dir>
<liferay.app.server.deploy.dir>C:\liferay-portal-6.2-ce-ga5\tomcat-7.0.62\webapps</liferay.app.server.deploy.dir>
<liferay.app.server.lib.global.dir>C:\liferay-portal-6.2-ce-ga5\tomcat-7.0.62\lib\ext</liferay.app.server.lib.global.dir>
<liferay.app.server.portal.dir>C:\liferay-portal-6.2-ce-ga5\tomcat-7.0.62\webapps\ROOT</liferay.app.server.portal.dir>
</properties>
<build>
<plugins>
<plugin>
<groupId>com.liferay.maven.plugins</groupId>
<artifactId>liferay-maven-plugin</artifactId>
<version>${liferay.maven.plugin.version}</version>
<executions>
<execution>
<phase>generate-sources</phase>
<goals>
<goal>build-css</goal>
</goals>
</execution>
</executions>
<configuration>
<autoDeployDir>${liferay.auto.deploy.dir}</autoDeployDir>
<appServerDeployDir>${liferay.app.server.deploy.dir}</appServerDeployDir>
<appServerLibGlobalDir>${liferay.app.server.lib.global.dir}</appServerLibGlobalDir>
<appServerPortalDir>${liferay.app.server.portal.dir}</appServerPortalDir>
<liferayVersion>${liferay.version}</liferayVersion>
<pluginType>portlet</pluginType>
</configuration>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<configuration>
<encoding>UTF-8</encoding>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>2.7</version>
<configuration>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>com.liferay.portal</groupId>
<artifactId>portal-service</artifactId>
<version>${liferay.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.liferay.portal</groupId>
<artifactId>util-bridges</artifactId>
<version>${liferay.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.liferay.portal</groupId>
<artifactId>util-taglib</artifactId>
<version>${liferay.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.liferay.portal</groupId>
<artifactId>util-java</artifactId>
<version>${liferay.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.portlet</groupId>
<artifactId>portlet-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.4</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</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-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc-portlet</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>5.0.6.Final</version>
</dependency>
<dependency>
<groupId>javax.transaction</groupId>
<artifactId>jta</artifactId>
<version>1.1</version>
</dependency>
<dependency>
<groupId>org.hibernate.java-persistence</groupId>
<artifactId>jpa-api</artifactId>
<version>2.0.Beta-20090815</version>
<type>jar</type>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-c3p0</artifactId>
<version>5.0.6.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.0-api</artifactId>
<version>1.0.1.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator-annotation-processor</artifactId>
<version>5.2.2.Final</version>
<exclusions>
<exclusion>
<artifactId>slf4j-log4j12</artifactId>
<groupId>org.slf4j</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.13</version>
<type>jar</type>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.13</version>
</dependency>
<dependency>
<groupId>org.jsoup</groupId>
<artifactId>jsoup</artifactId>
<version>1.8.3</version>
</dependency>
<!-- <dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-email</artifactId>
<version>1.4</version>
</dependency>-->
<dependency>
<groupId>com.itextpdf</groupId>
<artifactId>itextpdf</artifactId>
<version>5.5.8</version>
</dependency>
<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.5.0-b01</version>
</dependency>
<dependency>
<groupId>com.google.guava</groupId>
<artifactId>guava-collections</artifactId>
<version>r03</version>
</dependency>
</dependencies>
</project>
我对portlet的spring配置是：
<?xml version="1.0"?>
<beans
xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.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.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.0.xsd"
>
<context:annotation-config />
<context:component-scan base-package="it.realt.*" />
<tx:annotation-driven transaction-manager="transactionManager" />
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"
p:entityManagerFactory-ref="entityManagerFactory" />
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"
p:dataSource-ref="businessDataSource" p:jpaVendorAdapter-ref="jpaAdapter"
p:packagesToScan="it.realt.mypos.domain" >
<property name="loadTimeWeaver">
<bean class="org.springframework.instrument.classloading.InstrumentationLoadTimeWeaver" />
</property>
<property name="jpaProperties">
<props>
<prop key="connection.autoReconnect">true</prop>
<prop key="connection.autoReconnectForPools">true</prop>
<prop key="connection.is-connection-validation-required">true</prop>
</props>
</property>
</bean>
<bean id="jpaAdapter"
class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"
p:database="POSTGRESQL" p:showSql="true" />
<bean id="bgdApplicationContextProvider"
class="it.realt.mypos.util.ApplicationContextProvider" />
<bean name="businessDataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource" >
<property name="driverClassName" value="org.postgresql.Driver" />
<property name="url" value="jdbc:postgresql://127.0.0.1:5432/myPos" />
<property name="username" value="xxxx" />
<property name="password" value="xxx" />
</bean>
</beans>
我有一个抽象类，使用泛型作为DAO类的基础，我使用@PersistenceContext注入EntityManager
public abstract class DaoImpl<T extends Serializable, K> implements Dao<T, K> {
@PersistenceContext
protected EntityManager em;
private Class<T> type;
.......
当liferay服务器启动并尝试加载我的portlet时，我在初始化EntityManagerFactory时遇到错误
13:49:22,583 WARN [XmlPortletApplicationContext:546] Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in PortletContext resource [/WEB-INF/spring-context/portlet/MyPos-portlet.xml]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: javax.persistence.Table.indexes()[Ljavax/persistence/Index;
13:49:22,583 ERROR [DispatcherPortlet:279] Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in PortletContext resource [/WEB-INF/spring-context/portlet/MyPos-portlet.xml]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: javax.persistence.Table.indexes()[Ljavax/persistence/Index;
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1578)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1054)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:829)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538)
at org.springframework.web.portlet.FrameworkPortlet.createPortletApplicationContext(FrameworkPortlet.java:368)
at org.springframework.web.portlet.FrameworkPortlet.initPortletApplicationContext(FrameworkPortlet.java:297)
at org.springframework.web.portlet.FrameworkPortlet.initPortletBean(FrameworkPortlet.java:271)
at org.springframework.web.portlet.GenericPortletBean.init(GenericPortletBean.java:124)
at javax.portlet.GenericPortlet.init(GenericPortlet.java:136)
.......
出了什么问题？也许我在配置中忘了一些东西？
提前致谢
答案 0 :(得分：2)
您正在使用JPA2.1提供程序（Hibernate 5.0.6）和类路径中的Beta版JPA 2.0库（2.0.Beta-20090815）。因此，提供商尝试调用尚不存在的方法：Table.indexes()。
使用JPA 2.1库。