Spring配置数据源的四种方式

1、使用Spring自带的DriverManagerDataSource

<?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:aop="http://www.springframework.org/schema/aop"  
    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-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/context http://www.springframework.org/schema/context/spring-context-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.springframework.jdbc.datasource.DriverManagerDataSource">  
        <property name="driverClassName">  
            <value>oracle.jdbc.driver.OracleDriver</value>  
        </property>  
        <property name="url">  
            <value>jdbc:oracle:thin:@192.168.24.102:1521:sms</value>  
        </property>  
        <property name="username">  
            <value>test</value>  
        </property>  
        <property name="password">  
            <value>test</value>  
        </property>  
    </bean>   
 </beans>  

2、DBCP数据源

需要下载jar包：commons-dbcp.jar,commons-pool.jar。

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"              
        destroy-method="close">              
    <property name="driverClassName" value="oracle.jdbc.driver.OracleDriver" />             
    <property name="url" value="jdbc:oracle:thin:@192.168.24.102:1521:sms" />             
    <property name="username" value="test"/>             
    <property name="password" value="test" />             
  
</bean>  

3、C3P0数据源

<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"              
       destroy-method="close">    
   <property name="driverClass" value="oracle.jdbc.driver.OracleDriver" />  
<property name="jdbcUrl" value="jdbc:oracle:thin:@192.168.24.102:1521:sms " />  
<property name="user" value="test" />  
<property name="password" value="test" />   
  
</bean> 

如有不明问题，请注意相应格式可参考http://kangzye.blog.163.com/blog/static/3681922320091033359708/

4、使用Hibernate数据源

需要hiberante核心jar包。

目前三大框架较流行，spring一般与hiberante做搭档，数据库连接方式写在hiberante的配置文件中，在spring管理hibernate中的配置文件中，直接读取hibernate核心配置文件即可。

其中读取hibernate数据源与访问dao层的方式是配置在一块的。

<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">  
 <property name="configLocations">  
   <list>  
      <value>classpath:com/config/hibernate.cfg.xml</value>  
   </list>  
 </property>  
    <property name="mappingLocations">   
<!-- 所有的实体类映射文件 -->  
        <list>  
            <value>classpath:com/hibernate/*.hbm.xml</value>  
        </list>  
</property>