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POEntity attribute not passed to sql statement with hibernateTemplate
 

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  1. POEntity attribute not passed to sql statement with hibernateTemplate
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    <p>I am learning spring data access and I've tried to insert data through hibernateTempate. Here is my code:</p> <p><strong>UPDATED</strong></p> <p>applicationContext.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/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd"&gt; &lt;context:annotation-config/&gt; &lt;context:component-scan base-package="com.eric.mvnlab"/&gt; &lt;context:property-placeholder properties-ref="properties"/&gt; &lt;bean id="properties" class="org.springframework.beans.factory.config.PropertiesFactoryBean"&gt; &lt;property name="locations"&gt; &lt;list&gt; &lt;value&gt;classpath:application.properties&lt;/value&gt; &lt;/list&gt; &lt;/property&gt; &lt;/bean&gt; &lt;bean id="messageSource" class="org.springframework.context.support.ReloadableResourceBundleMessageSource"&gt; &lt;property name="basename" value="classpath:messages"/&gt; &lt;property name="defaultEncoding" value="${source.encoding}"/&gt; &lt;/bean&gt; &lt;!-- DAO layer --&gt; &lt;tx:annotation-driven/&gt; &lt;bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"&gt; &lt;property name="sessionFactory" ref="sessionFactory"/&gt; &lt;/bean&gt; &lt;bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"&gt; ... &lt;/bean&gt; &lt;!-- Hibernate session factory --&gt; &lt;bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"&gt; &lt;property name="dataSource" ref="dataSource"/&gt; &lt;!--&lt;property name="packagesToScan" value="com.eric.mvnlab.model.*" /&gt;--&gt; &lt;property name="annotatedClasses"&gt; &lt;list&gt; &lt;value&gt;com.eric.mvnlab.model.Machine&lt;/value&gt; &lt;/list&gt; &lt;/property&gt; &lt;property name="hibernateProperties"&gt; &lt;props&gt; &lt;prop key="hibernate.dialect"&gt;org.hibernate.dialect.HSQLDialect&lt;/prop&gt; &lt;prop key="hibernate.hbm2ddl.auto"&gt;create&lt;/prop&gt; &lt;prop key="hibernate.show_sql"&gt;true&lt;/prop&gt; &lt;/props&gt; &lt;/property&gt; &lt;/bean&gt; &lt;/beans&gt; </code></pre> <p>MachineDAO.java</p> <pre><code>package com.eric.mvnlab.server.dao.impl; import com.eric.mvnlab.model.Machine; import org.springframework.stereotype.Repository; @Repository("machineDao") public class MachineDAO extends GenericHibernateDAOImpl&lt;Machine, Integer&gt; { public void addMachine(Machine machine) { getHibernateTemplate().save(machine); } public Machine findById(int id) { return (Machine) getHibernateTemplate().get(Machine.class, id); } } </code></pre> <p>Main.java</p> <pre><code>package com.eric.mvnlab; import com.eric.mvnlab.model.Machine; import com.eric.mvnlab.server.dao.impl.MachineDAO; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; /** * Created with IntelliJ IDEA. * User: eric * Date: 9/25/12 * Time: 3:15 PM * To change this template use File | Settings | File Templates. */ public class Main { public static void main(String[] args) { ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml"); MachineDAO machineDAO = (MachineDAO)context.getBean("machineDao"); machine.setHostname("MyLaptop"); machine.setIpaddress("127.0.0.1"); machineDAO.addMachine(machine); } } </code></pre> <p>Machine.java</p> <pre><code>package com.eric.mvnlab.model; import javax.persistence.Table; import javax.persistence.Id; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; @Entity @Table(name="MACHINE") public class Machine { @Column(name="MID") @Id @GeneratedValue(strategy=GenerationType.IDENTITY) private int mid; @Column(name="HOSTNAME") private String hostname; @Column(name="IPADDRESS") private String ipaddress; public String getIpaddress() { return ipaddress; } public void setIpaddress(String ipaddress) { this.ipaddress = ipaddress; } public String getHostname() { return hostname; } public void setHostname(String hostname) { this.hostname = hostname; } public int getMid() { return mid; } public void setMid(int machineId) { this.mid = machineId; } } </code></pre> <p>Table Machine has three columns: mid, hostname and ipaddress. mid is the primary key and is auto increment. </p> <p>When I run Main, I got below output:</p> <pre><code>Hibernate: insert into MACHINE (MID, HOSTNAME, IPADDRESS) values (null, ?, ?) Exception in thread "main" org.springframework.dao.InvalidDataAccessResourceUsageException: could not insert: [com.eric.mvnlab.model.Machine]; SQL [insert into MACHINE (MID, HOSTNAME, IPADDRESS) values (null, ?, ?)]; nested exception is org.hibernate.exception.SQLGrammarException: could not insert: [com.eric.mvnlab.model.Machine] WARN - JDBCExceptionReporter - SQL Error: -798, SQLState: 428C9 at org.springframework.orm.hibernate3.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:629) ERROR - JDBCExceptionReporter - DB2 SQL Error: SQLCODE=-798, SQLSTATE=428C9, SQLERRMC=MID, DRIVER=4.7.85 </code></pre> <p>Could anyone tell me why the entity attribute data is not passed to sql statement?</p> <p><strong>NOTE:</strong> If you are using DB2 9.7, and you are likely to met this error:</p> <p><em>org.hibernate.HibernateException: The database returned no natively generated identity value</em></p> <p>It's a DB2 jdbc driver bug, and the solution is to use a later version driver, such as 10.1</p>
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    1. This table or related slice is empty.
    1. PTQuestion
    1. USeric2323223
    1. USeric2323223
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
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      1. POEntity attribute not passed to sql statement with hibernateTemplate
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
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      1. POEntity attribute not passed to sql statement with hibernateTemplate
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      1. VTUpMod
    1. COEverything looks correct so far. Can you show your `Machine` class?
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      1. USaxtavt
    2. CO@axtavt, updated.
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      1. POEntity attribute not passed to sql statement with hibernateTemplate
      1. USeric2323223
 

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