I use hibernate to save data into MySQL, but I got ultraedit.
enter image description here
My code is below:
#Test
public void testA(){
Employee emp = new Employee();
emp.setEmpName("邓海");
emp.setWorkDate(new Date());
Configuration conf = new Configuration();
conf.configure();
SessionFactory sf = conf.buildSessionFactory();
Session session = sf.openSession();
Transaction ts = session.beginTransaction();
session.save(emp);
ts.commit();
session.close();
sf.close();
}
And my .hbm.xml is below:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="com.ypd.a.entity">
<class name="Employee" table="t_employee">
<id name="empId" column="id">
<generator class="native"/>
</id>
<property name="empName" column="emp_name"></property>
<property name="workDate" column="workDate"></property>
</class>
</hibernate-mapping>
My hibernate.xml is :
hibernate-configuration >
<session-factory>
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/test</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password">root</property>
<property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property>
<property name="hibernate.show_sql">true</property>
<property name="javax.persistence.validation.mode">none</property>
<mapping resource="Employee.hbm.xml"></mapping>
</session-factory>
</hibernate-configuration>
Edit
enter image description here
If there is some settings I don't know? please show me the correct setting.
Try this in your sessionFactory:
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=UTF-8</property>
You should appoint out the charset when you communication with the server.
I'm integrate spring with hibernate , I'm using dropwizard configaration files as : persistence file have the configuration files are in resources folder no issue with loading xml files. There is issue with found table .
persistence.xml file as :
<persistence-unit name="bfm" transaction-type="RESOURCE_LOCAL" >
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<class>com.bcits.parkingmanagement.model.User</class>
<exclude-unlisted-classes>true</exclude-unlisted-classes>
<properties>
<!-- Configuring JDBC properties -->
<property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/anuj" />
<property name="javax.persistence.jdbc.user" value="root" />
<property name="javax.persistence.jdbc.password" value="root" />
<property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver" />
</persistence-unit>
</persistence>
In spring application config xml as : there I show only hibernate configuration
<context:annotation-config />
<context:component-scan base-package="com.bcits.parkingmanagement.model" />
<jdbc:embedded-database id="dataSource" type="HSQL" />
<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="persistenceXmlLocation" value="classpath:spring/persistence.xml" />
<property name="dataSource" ref="dataSource"/>
</bean>
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
<bean id="entityManager"
class="org.springframework.orm.jpa.support.SharedEntityManagerBean">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
Table User missing
javax.persistence.PersistenceException: [PersistenceUnit: bfm] Unable to build EntityManagerFactory
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1562)
... 18 more
Caused by: org.hibernate.HibernateException: Missing table: user
Please anyone help me how can I resolve this error. I want to configuration of spring with hibernate.I thing it is connect to database but can't found table. Table name and colume name exactly same. Database name also correct and no issue with username and password of database .
User model is: Here User is model name and user is table which have two column one is user_id and user_name. Issue is that i had used user instead of User in query. Because User is model name and user is table name .Correct model is given below
#NamedQueries({
#NamedQuery( name="getUserName" , query="select name from User")
})
#Entity
#Table( name ="user")
public class User {
#Id
#Column( name="user_id")
private int id;
#Column( name="user_name")
private String name;
//getter setter
}
I'm beginer in Hibernate and Spring MVC, and i have a repetitive problem on retrieving data, sometimes when i refresh my page or just submit a form, i get old data that i had updated or even deleted.
Here is my configurations file of hibernate :
<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/cotaDB18</property>
<property name="connection.username">root</property>
<property name="connection.password"></property>
<!-- JDBC connection pool (use the built-in) -->
<property name="connection.pool_size">1</property>
<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<!-- Enable Hibernate's automatic session context management -->
<property name="current_session_context_class">thread</property>
<!-- Disable the second-level cache -->
<!-- <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property> -->
<property name="hibernate.connection.isolation">4</property>
<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>
<!-- Drop and re-create the database schema on startup -->
<property name="hbm2ddl.auto">update</property>
</session-factory>
I retrieve data like this :
#SuppressWarnings("unchecked")
#Override
public List<Tache> getTachesByPhase(int idPhase) {
Session session = HibernateUtil.getSessionFactory().getCurrentSession();
session.beginTransaction();
String hql = "From Tache T where T.phase=" + idPhase + " Order by T.index";
Query query = session.createQuery(hql);
return query.list();
}
Please i need your help, i don't find the solution
I used this code in my hibernate.cfg.xml configuration:
<?xml version="1.0"?>
<hibernate-configuration xmlns= "urn:nhibernate-configuration-2.2">
<session-factory>
<!-- SQLServer: Provider --><!--
<property name="connection.provider"> NHibernate.Connection.DriverConnectionProvider </property>-->
<!-- SQLServer: Driver -->
<property name="connection.driver_class"> NHibernate.Driver.MySqlDataDriver </property>
<!-- SQLServer: Dialeto -->
<property name="dialect"> NHibernate.Dialect.MySQLDialect </property>
<!-- SQLServer: Connection String -->
<property name="connection.connection_string"> Database=nhibernate;Data Source=localhost;User Id=root;Password=xxxx</property>
<!-- Classe que será utilizada para Proxy
(LazyLoading) -->
<property name="proxyfactory.factory_class"> NHibernate.ByteCode.LinFu.ProxyFactoryFactory, NHibernate.ByteCode.LinFu </property>
</session-factory>
</hibernate-configuration>
I have a problem creating the database.
NHibernate.HibernateException: Could not create the driver from NHibernate.Driver.MySqlDataDriver. ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> NHibernate.HibernateException: The IDbCommand and IDbConnection implementation in the assembly MySql.Data could not be found. ...
What should I do?
It's simple: add Mysql.Data.dll to the project's bin folder.
I am doing unit testing and I expect that all data committed to the MySQL database will be rolled back... but this isn't the case. The data is being committed, even though my log was showing that the rollback was happening. I've been wrestling with this for a couple days so my setup has changed quite a bit, here's my current setup.
LoginDAOTest.java:
#RunWith(SpringJUnit4ClassRunner.class)
#ContextConfiguration(locations={"file:web/WEB-INF/applicationContext-test.xml", "file:web/WEB-INF/dispatcher-servlet-test.xml"})
#TransactionConfiguration(transactionManager = "transactionManager", defaultRollback = true)
public class UserServiceTest {
private UserService userService;
#Test
public void should_return_true_when_user_is_logged_in ()
throws Exception
{
String[] usernames = {"a","b","c","d"};
for (String username : usernames)
{
userService.logUserIn(username);
assertThat(userService.isUserLoggedIn(username), is(equalTo(true)));
}
}
ApplicationContext-Text.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:p="http://www.springframework.org/schema/p"
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-2.5.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/******"/>
<property name="username" value="*****"/>
<property name="password" value="*****"/>
</bean>
<tx:annotation-driven transaction-manager="transactionManager"/>
<bean id="userService" class="Service.UserService">
<property name="userDAO" ref="userDAO"/>
</bean>
<bean id="userDAO" class="DAO.UserDAO">
<property name="hibernateTemplate" ref="hibernateTemplate"/>
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
<property name="mappingResources">
<list>
<value>/himapping/User.hbm.xml</value>
<value>/himapping/setup.hbm.xml</value>
<value>/himapping/UserHistory.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>
</props>
</property>
</bean>
<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"
p:sessionFactory-ref="sessionFactory"/>
<bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">
<property name="sessionFactory">
<ref bean="sessionFactory"/>
</property>
</bean>
</beans>
I have been reading about the issue, and I've already checked to ensure that the MySQL database tables are setup to use InnoDB. Also I have been able to successfully implement rolling back of transactions outside of my testing suite. So this must be some sort of incorrect setup on my part.
Any help would be greatly appreciated :)
The problem turned out to be that the connection was auto-committing BEFORE the transaction could be rolled back. I had to change my dataSource bean to include a defaultAutoCommit property:
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<property name="url" value="jdbc:mysql://localhost:3306/test"/>
<property name="username" value="root"/>
<property name="password" value="Ecosim07"/>
<property name="defaultAutoCommit" value="false" />
</bean>
For me defaultAutoCommit and #Transactional didn't help. I had to change db type to InnoDB
Another way to fix your problem:
Instead of using:
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
, which creates a MyISAM table by default, hence not supporting transactions
Try using
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLInnoDBDialect</prop>
, which creates InnoDB tables, and thus supports transactions.
This must be used
#TransactionConfiguration(transactionManager = "transactionManager", defaultRollback = true)
#TestExecutionListeners({ TransactionalTestExecutionListener.class })
#Transactional
TransactionalTestExecutionListener contains isRollback() which rollbacks the
transaction after the test method.
I hope I am right and that this is a simple one. You are missing the #Transactional annotation on your test class. This means that the test method itself isn't run in a transaction and thus there is nothing to roll back. Hope this helps.