Exception java.lang.ClassNotFoundException: org.apache.commons.dbcp.BasicDataSource

Question

I\'m trying to integrate spring and Hibernate with mysql. I created a simple java project and a package with 3 classes, an application context.xml file, and an hbm.xml for mappi

Answer 1

It looks like that jvm could not find the org.apache.commons.dbcp.BasicDataSource class.Please check in your class-path or in your project build-path that commons-dbcp.jar is present or not.

If yes then, open your commons-dbcp.jar and check that particular class(org.apache.commons.dbcp.BasicDataSource) is available or not

Answer 2

change org.apache.commons.dbcp.BasicDataSource to org.apache.commons.dbcp2.BasicDataSource,it works well

Answer 3

I got the same Exception stack with DBCP2. The issue was that my local m2 cache of the JAR file was corrupt. After I deleted it, Maven said it could not download 2.1.1. I switched to 2.5.0 and the app loaded successfully.

Answer 4

springframework.jdbc.datasource.DriverManagerDataSource instead of org.apache.commons.dbcp.BasicDataSource in applicationContext.xml file. It works fine.

Answer 5

Your problem is Caused by: java.lang.ClassNotFoundException: org.apache.commons.dbcp.BasicDataSource on "dataSource" bean.

If using maven add this dependency

<dependency>
    <groupId>commons-dbcp</groupId>
    <artifactId>commons-dbcp</artifactId>
    <version>1.2.2</version>
</dependency>

else add this library commons-dbcp-jar in your classpath.

Answer 6

If you are using Spring 4+, you should use SessionFactory. Also, you need these jars: commons-pool, commons-dbcp.

This is a sample code that I made, I hope it helps you:

public class EmployeeDAOImpl implements EmployeeDAO{

    private SessionFactory sessionFactory;

    @Override
    public void saveEmployee(Employee e) {
        Session session = this.sessionFactory.openSession();
        Transaction tx = session.beginTransaction();
        session.persist(e);
        tx.commit();
        session.close();
    }

    public SessionFactory getSessionFactory() {
        return sessionFactory;
    }

    public void setSessionFactory(SessionFactory sessionFactory) {
        this.sessionFactory = sessionFactory;
    }

}

applicationContext.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"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"> 
        <property name="driverClassName" value="oracle.jdbc.driver.OracleDriver" />
        <property name="url" value="jdbc:oracle:thin@:..." />
        <property name="username" value="admin" />
        <property name="password" value="admin" />
    </bean>

    <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">  
        <property name="dataSource" ref="dataSource"></property>

        <property name="mappingResources">
        <list>
            <value>employee.hbm.xml</value>
        </list>
        </property>

        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.Oracle9Dialect</prop>
                <prop key="hibernate.hbm2ddl.auto">update</prop>
                <prop key="hibernate.show_sql">true</prop>

            </props>
        </property>
    </bean>


    <bean id="d" class="com.orm.EmployeeDAOImpl">
        <property name="sessionFactory" ref="sessionFactory"></property>
    </bean>

</beans>