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why i am getting Unable to configure EntityManagerFactory?

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hibernaterobot

Post subject: why i am getting Unable to configure EntityManagerFactory?

Posted: Fri Oct 01, 2010 8:13 am

Newbie

Joined: Fri Oct 01, 2010 8:02 am
Posts: 2

why i am getting Unable to configure EntityManagerFactory? what is the problem in my persistence.xml(which is place in META-INF folder?

<?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">
<persistence-unit name="jpa">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<class>Student</class>
<properties>
<property name="hibernate.connection.url" value="jdbc:mysql:///test"/>
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect"/>
<property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver"/>
<property name="hibernate.connection.password" value="test"/>
<property name="hibernate.connection.username" value="test"/>
<property name="hibernate.hbm2ddl.auto" value="update"/>
<property name="hibernate.show_sql" value="true"/>
</properties>
</persistence-unit>
</persistence>

---------- RUN ----------
62 [main] INFO org.hibernate.cfg.annotations.Version - Hibernate Annotations 3.5.5-Final
3031 [main] INFO org.hibernate.cfg.Environment - Hibernate 3.5.5-Final
4172 [main] INFO org.hibernate.cfg.Environment - loaded properties from resource hibernate.properties: {hibernate.connection.username=test, hibernate.connection.password=****, hibernate.connection.pool_size=10, hibernate.connection.url=jdbc:mysql:///test, hibernate.bytecode.use_reflection_optimizer=false, hibernate.connection.driver_class=com.mysql.jdbc.Driver}
4766 [main] INFO org.hibernate.cfg.Environment - Bytecode provider name : javassist
6094 [main] INFO org.hibernate.cfg.Environment - using JDK 1.4 java.sql.Timestamp handling
16627 [main] INFO org.hibernate.annotations.common.Version - Hibernate Commons Annotations 3.2.0.Final
17861 [main] INFO org.hibernate.ejb.Version - Hibernate EntityManager 3.5.5-Final
Exception ==> javax.persistence.PersistenceException: [PersistenceUnit: jpa] Unable to configure EntityManagerFactory
Normal Termination
Output completed (2 min 0 sec consumed).

my class pathe ientry is like below
C:\hibjars\antlr-2.7.4.jar;
C:\hibjars\c3p0-0.8.5.jar;
C:\hibjars\commons-collections-2.1.1.jar;
C:\hibjars\dom4j-1.5.2.jar;
C:\hibjars\hibernate3.jar;
C:\hibjars\asm-1.5.3.jar;
C:\hibjars\cglib-2.1.3.jar;
C:\hibjars\commons-logging-1.1.1.jar;
C:\hibjars\ehcache-1.1.jar;
C:\hibjars\jta.jar;
C:\hibjars\mysql-connector-java-3.1.6-bin.jar;
C:\hibjars\persistence-api-1.0.jar;
c:\hibjars\hibernate-entitymanager.jar;
C:\hibjars\hibernate-jpa-2.0-api-1.0.0.Final.jar;
C:\hibjars\slf4j-api-1.5.8.jar;
C:\hibjars\slf4j-simple-1.5.6.jar;
C:\hibjars\log4j.jar;
C:\hibjars\hibernate-annotations.jar;
C:\hibjars\hibernate-commons-annotations.jar;
c:\hibjars\javassist-3.9.0.GA.jar

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davidhe1127

Post subject: Re: why i am getting Unable to configure EntityManagerFactory?

Posted: Fri Oct 01, 2010 9:31 am

Newbie

Joined: Fri Oct 01, 2010 9:21 am
Posts: 2

hi

Firstly, you can press "Ctrl+Shift+T" and then type the EntityManagerFactory in the textfield sitting in the pop-up dialog box. If you find it, that is a good news indicating you have already loaded the correct jar file.

So, you can then take a reference of my one.

I post it below.

Code:

<?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:aop="http://www.springframework.org/schema/aop"
   xmlns:tx="http://www.springframework.org/schema/tx"
   xsi:schemaLocation="
      http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
      http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd
      http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd">

   <!-- Datasource and Connection Pool Configuration -->
   <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
      destroy-method="close">
      <property name="driverClass">
         <value>com.mysql.jdbc.Driver</value>
      </property>
      <property name="jdbcUrl">
         <value>jdbc:mysql://localhost:3306/aip?useUnicode=true&amp;characterEncoding=utf8&amp;autoReconnect=true&amp;autoReconnectForPools=true</value>
      </property>
      <property name="user">
      <value>XinGuan</value>
      </property>
      <property name="password">
      <value>52230365</value>
      </property>
      
      <property name="maxPoolSize">
      <value>40</value>
      </property>
      <property name="minPoolSize">
      <value>1</value>
      </property>
      <property name="initialPoolSize">
      <value>1</value>
      </property>
      <property name="maxIdleTime">
      <value>20</value>
      </property>
   </bean>
   
   
   <!-- SessionFactory Configuration -->
   <bean id="mySessionFactory" 
      class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
      <property name="mappingResources">
         <list>
            <value>com/cn/pojo/Order.hbm.xml</value>
            <value>com/cn/pojo/Customer.hbm.xml</value>
            <value>com/cn/pojo/Product.hbm.xml</value>      
            <value>com/cn/pojo/OrderProduct.hbm.xml</value>         
         </list>
      </property>      
      
      <property name="hibernateProperties">
         <props>
            <prop key="hibernate.dialect">
               org.hibernate.dialect.MySQLDialect
            </prop>
            <prop key="hibernate.show_sql">true</prop>
            <prop key="current_session_context_class">thread</prop>
            <prop key="hibernate.cache.provider_class">
               org.hibernate.cache.EhCacheProvider
            </prop>
            <prop key="connection.pool_size">10</prop>
            <prop key="hibernate.hbm2ddl.auto">update</prop>
         </props>
      </property>   
      
      <property name="dataSource">
         <ref bean="dataSource"/>
      </property>
   </bean>
   

Hope it helps.

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hibernaterobot

Post subject: Re: why i am getting Unable to configure EntityManagerFactory?

Posted: Sat Oct 02, 2010 8:54 am

Newbie

Joined: Fri Oct 01, 2010 8:02 am
Posts: 2

davidhe1127 wrote:

Code:

<?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:aop="http://www.springframework.org/schema/aop"
   xmlns:tx="http://www.springframework.org/schema/tx"
   xsi:schemaLocation="
      http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
      http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd
      http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd">

   <!-- Datasource and Connection Pool Configuration -->
   <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
      destroy-method="close">
      <property name="driverClass">
         <value>com.mysql.jdbc.Driver</value>
      </property>
      <property name="jdbcUrl">
         <value>jdbc:mysql://localhost:3306/aip?useUnicode=true&amp;characterEncoding=utf8&amp;autoReconnect=true&amp;autoReconnectForPools=true</value>
      </property>
      <property name="user">
      <value>XinGuan</value>
      </property>
      <property name="password">
      <value>52230365</value>
      </property>
      
      <property name="maxPoolSize">
      <value>40</value>
      </property>
      <property name="minPoolSize">
      <value>1</value>
      </property>
      <property name="initialPoolSize">
      <value>1</value>
      </property>
      <property name="maxIdleTime">
      <value>20</value>
      </property>
   </bean>
   
   
   <!-- SessionFactory Configuration -->
   <bean id="mySessionFactory" 
      class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
      <property name="mappingResources">
         <list>
            <value>com/cn/pojo/Order.hbm.xml</value>
            <value>com/cn/pojo/Customer.hbm.xml</value>
            <value>com/cn/pojo/Product.hbm.xml</value>      
            <value>com/cn/pojo/OrderProduct.hbm.xml</value>         
         </list>
      </property>      
      
      <property name="hibernateProperties">
         <props>
            <prop key="hibernate.dialect">
               org.hibernate.dialect.MySQLDialect
            </prop>
            <prop key="hibernate.show_sql">true</prop>
            <prop key="current_session_context_class">thread</prop>
            <prop key="hibernate.cache.provider_class">
               org.hibernate.cache.EhCacheProvider
            </prop>
            <prop key="connection.pool_size">10</prop>
            <prop key="hibernate.hbm2ddl.auto">update</prop>
         </props>
      </property>   
      
      <property name="dataSource">
         <ref bean="dataSource"/>
      </property>
   </bean>
   

Hope it helps.

Sorry David,
I dint get u ....

couple of things i want know
1)is its problem of multiple jars loaded?
2)is its problem of persistance.xml issue?
3)How many files need apart from (pojo class,jpaclient.java and persistance.xml)?

thanks in advance
hibernaterobot

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