Spring 配置dataSource和sessionFactory

记得导入dbcp和pool的jar包。

 

<?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:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-2.5.xsd
           http://www.springframework.org/schema/aop
           http://www.springframework.org/schema/aop/spring-aop-2.5.xsd">
    <context:annotation-config />
    <context:component-scan base-package="com.bjsxt" />

    <!--
        <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/spring" />
        <property name="username" value="root" />
        <property name="password" value="bjsxt" />
        </bean>
    -->

    <bean
        class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="locations">
            <value>classpath:jdbc.properties</value>
        </property>
    </bean>

    <bean id="dataSource" destroy-method="close"
        class="org.apache.commons.dbcp.BasicDataSource">
        <property name="driverClassName"
            value="${jdbc.driverClassName}" />
        <property name="url" value="${jdbc.url}" />
        <property name="username" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />
    </bean>

    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"><!-- 使用注解 -->
        <property name="dataSource" ref="dataSource" />

        <!--
        <property name="annotatedClasses">
            <list>
                <value>com.bjsxt.model.User</value>
                <value>com.bjsxt.model.Log</value>
            </list>
        </property>
         -->
         <property name="packagesToScan"><!-- 可以自动扫描list中指定的包来加载实体类，不用一 一指明   -->
          <list>
                <value>com.bjsxt.model</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>

</beans>

 

jdbc.properties：

jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/spring
jdbc.username=root
jdbc.password=bjsxt

 

 

在类中可以通过注解进行注入。

 

package com.bjsxt.dao.impl;

import java.sql.SQLException;

import javax.annotation.Resource;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.stereotype.Component;

import com.bjsxt.dao.UserDAO;
import com.bjsxt.model.User;

@Component("u")
public class UserDAOImpl implements UserDAO {

    private SessionFactory sessionFactory;

    public SessionFactory getSessionFactory() {
        return sessionFactory;
    }
   
    @Resource
    public void setSessionFactory(SessionFactory sessionFactory) {
        this.sessionFactory = sessionFactory;
    }

    public void save(User user) {
       
        //Hibernate
        //JDBC
        //XML
        //NetWork
        System.out.println("session factory class:" + sessionFactory.getClass());
            Session s = sessionFactory.openSession();
            s.beginTransaction();
            s.save(user);
            s.getTransaction().commit();
        System.out.println("user saved!");
        //throw new RuntimeException("exeption!");
    }

}