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POError when trying to create transactionManager bean in a Spring - Hibernate application
 

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  1. POError when trying to create transactionManager bean in a Spring - Hibernate application
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    <p>I am getting an error from spring when it tries to create a transaction manager bean. I am posting my java classes and configuration files below.</p> <p>foo.bar/HelloApp.java :</p> <pre><code>package foo.bar; import com.mkyong.stock.bo.StockBo; import com.mkyong.stock.model.StockEntity; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; public class HelloApp { public static void main(String[] args) { ApplicationContext context = new ClassPathXmlApplicationContext("spring-config.xml"); StockBo stockBo = (StockBo)context.getBean("stockBo"); //insert StockEntity stock = new StockEntity(); stock.setStockCode("7668"); stock.setStockName("HAIO"); stockBo.save(stock); //select StockEntity stock2 = stockBo.findByStockCode("7668"); System.out.println(stock2); //update //stock2.setStockName("HAIO-1"); //stockBo.update(stock2); //delete //stockBo.delete(stock2); System.out.println("Done"); } } </code></pre> <p>com.mkyong.stock.bo/StockBoImpl.java :</p> <pre><code>package com.mkyong.stock.bo; import com.mkyong.stock.dao.StockDao; import com.mkyong.stock.model.StockEntity; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Propagation; import org.springframework.transaction.annotation.Transactional; @Service("stockBo") @Transactional(propagation = Propagation.SUPPORTS) public class StockBoImpl implements StockBo{ @Autowired StockDao stockDao; public void setStockDao(StockDao stockDao) { this.stockDao = stockDao; } @Override public void save(StockEntity stock) { stockDao.save(stock); } @Override public void update(StockEntity stock) { stockDao.save(stock); } @Override public void delete(StockEntity stock) { stockDao.delete(stock); } @Override public StockEntity findByStockCode(String stockCode) { return stockDao.findByStockCode(stockCode); } } </code></pre> <p>com.mkyong.stock.dao/StockDaoImpl.java :</p> <pre><code>package com.mkyong.stock.dao; import com.mkyong.stock.model.StockEntity; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Repository; @Repository("stockDao") public class StockDaoImpl implements StockDao{ private SessionFactory sessionFactory; @Autowired public StockDaoImpl(SessionFactory sessionFactory) { this.sessionFactory = sessionFactory; } private Session currentSession() { return sessionFactory.getCurrentSession(); } @Override public void save(StockEntity stock) { currentSession().save(stock); } @Override public void update(StockEntity stock) { currentSession().update(stock); } @Override public void delete(StockEntity stock) { currentSession().delete(stock); } @Override public StockEntity findByStockCode(String stockCode) { return (StockEntity)currentSession().get(StockEntity.class, stockCode); } } </code></pre> <p>com.mkyong.stock.model/StockEntity.java :</p> <pre><code>package com.mkyong.stock.model; import javax.persistence.*; import java.io.Serializable; import static javax.persistence.GenerationType.IDENTITY; @javax.persistence.Table(name = "stock", schema = "", catalog = "mkyong", uniqueConstraints = { @UniqueConstraint(columnNames = "STOCK_NAME"), @UniqueConstraint(columnNames = "STOCK_CODE") } ) @Entity public class StockEntity implements Serializable{ private int stockId; private String stockCode; private String stockName; //---constructors public StockEntity() { } public StockEntity(String stockCode, String stockName) { this.stockCode = stockCode; this.stockName = stockName; } //---getters and setters @javax.persistence.Column(name = "STOCK_ID", unique = true, nullable = false, insertable = true, updatable = true, length = 10, precision = 0) @Id @GeneratedValue(strategy = IDENTITY) public int getStockId() { return stockId; } public void setStockId(int stockId) { this.stockId = stockId; } @javax.persistence.Column(name = "STOCK_CODE", unique = true, nullable = false, insertable = true, updatable = true, length = 10, precision = 0) @Basic public String getStockCode() { return stockCode; } public void setStockCode(String stockCode) { this.stockCode = stockCode; } @javax.persistence.Column(name = "STOCK_NAME", unique = true, nullable = false, insertable = true, updatable = true, length = 20, precision = 0) @Basic public String getStockName() { return stockName; } public void setStockName(String stockName) { this.stockName = stockName; } @Override public boolean equals(Object o) { if (this == o) return true; if (o == null || getClass() != o.getClass()) return false; StockEntity that = (StockEntity) o; if (stockId != that.stockId) return false; if (stockCode != null ? !stockCode.equals(that.stockCode) : that.stockCode != null) return false; if (stockName != null ? !stockName.equals(that.stockName) : that.stockName != null) return false; return true; } @Override public int hashCode() { int result = stockId; result = 31 * result + (stockCode != null ? stockCode.hashCode() : 0); result = 31 * result + (stockName != null ? stockName.hashCode() : 0); return result; } @Override public String toString() { return "Stock [stockCode=" + stockCode + ", stockId=" + stockId + ", stockName=" + stockName + "]"; } } </code></pre> <p>resources/hibernate.cfg.xml :</p> <pre><code>&lt;?xml version='1.0' encoding='utf-8'?&gt; &lt;!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD//EN" "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"&gt; &lt;hibernate-configuration&gt; &lt;session-factory&gt; &lt;property name="connection.url"&gt;jdbc:mysql://localhost:3306/mkyong&lt;/property&gt; &lt;property name="connection.driver_class"&gt;com.mysql.jdbc.Driver&lt;/property&gt; &lt;property name="connection.username"&gt;root&lt;/property&gt; &lt;property name="connection.password"&gt;mypassword&lt;/property&gt; &lt;property name="hibernate.current_session_context_class"&gt;thread&lt;/property&gt; &lt;!-- DB schema will be updated if needed --&gt; &lt;property name="hbm2ddl.auto"&gt;create&lt;/property&gt; &lt;!-- SQL dialect --&gt; &lt;property name="dialect"&gt;org.hibernate.dialect.MySQLDialect&lt;/property&gt; &lt;mapping class="com.mkyong.stock.model.StockEntity"/&gt; &lt;mapping resource="mapping.xml"/&gt; &lt;/session-factory&gt; &lt;/hibernate-configuration&gt; </code></pre> <p>resources/spring-config.xml:</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;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" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd"&gt; &lt;bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"&gt; &lt;property name="configLocation" value="hibernate.cfg.xml"/&gt; &lt;/bean&gt; &lt;bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager"&gt; &lt;property name="sessionFactory" ref="sessionFactory"/&gt; &lt;/bean&gt; &lt;context:annotation-config /&gt; &lt;context:component-scan base-package="foo.bar, com.mkyong.stock"/&gt; &lt;tx:annotation-driven transaction-manager="transactionManager"/&gt; &lt;/beans&gt; </code></pre> <p>And here is the error stack trace I get :</p> <pre><code>Exception in thread "main" org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'transactionManager' defined in class path resource [spring-config.xml]: Invocation of init method failed; nested exception is org.hibernate.service.UnknownUnwrapTypeException: Cannot unwrap to requested type [javax.sql.DataSource] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1486) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:524) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:607) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479) at org.springframework.context.support.ClassPathXmlApplicationContext.&lt;init&gt;(ClassPathXmlApplicationContext.java:139) at org.springframework.context.support.ClassPathXmlApplicationContext.&lt;init&gt;(ClassPathXmlApplicationContext.java:83) at foo.bar.HelloApp.main(HelloApp.java:10) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120) Caused by: org.hibernate.service.UnknownUnwrapTypeException: Cannot unwrap to requested type [javax.sql.DataSource] at org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImpl.unwrap(DriverManagerConnectionProviderImpl.java:85) at org.springframework.orm.hibernate4.SessionFactoryUtils.getDataSource(SessionFactoryUtils.java:91) at org.springframework.orm.hibernate4.HibernateTransactionManager.afterPropertiesSet(HibernateTransactionManager.java:252) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1545) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1483) ... 17 more </code></pre>
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    1. USskiabox
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      1. POError when trying to create transactionManager bean in a Spring - Hibernate application
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    1. CODoes the answer from [“Error creating bean with name” When creating a Transaction Manager](http://stackoverflow.com/questions/13670840/error-creating-bean-with-name-when-creating-a-transaction-manager) help?
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    2. COI have already searched stackoverflow and even googled it before I post my question.
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    3. COThe main issue should be this: Caused by: org.hibernate.service.UnknownUnwrapTypeException: Cannot unwrap to requested type [javax.sql.DataSource]. What is your db config?
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      1. USMartin Frey
 

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