利用“c3p0“配置数据库连接的实例脚本

<bean id="dataSource"        class="com.mchange.v2.c3p0.ComboPooledDataSource"        destroy-method="close" abstract="false" singleton="true"        lazy-init="default" autowire="default" dependency-check="default">        <property name="driverClass">            <value>com.mysql.jdbc.Driver</value>        </property>        <property name="jdbcUrl">            <value>jdbc:mysql://192.168.0.1/databasename?      useUnicode=true&amp;characterEncoding=utf-8&amp;      autoReconnect=true</value>        </property>        <property name="user">            <value>username</value>        </property>        <property name="password">            <value>password</value>        </property>        <property name="minPoolSize">            <value>10</value>        </property>        <property name="maxPoolSize">            <value>20</value>        </property>        <property name="initialPoolSize">            <value>10</value>        </property>    </bean>    <bean id="sessionFactory"        class="org.springframework.   orm.hibernate3.LocalSessionFactoryBean">        <property name="dataSource">            <ref bean="dataSource"></ref>        </property>        <property name="hibernateProperties">            <props>                <prop key="hibernate.dialect">                    org.hibernate.dialect.MySQLDialect                </prop>                <prop key="hibernate.show_sql">                    false                </prop>                <prop key="hibernate.generate_statistics">true</prop>                <prop key="hibernate.cache.use_query_cache">                    true                </prop>                <prop key="hibernate.cache.use_second_level_cache">                    true                </prop>                <prop key="hibernate.cache.provider_class">                    net.sf.ehcache.hibernate.EhCacheProvider                </prop>                <prop key="hibernate.connection.provider_class">                    org.hibernate.connection.C3P0ConnectionProvider                </prop>                <prop key="hibernate.query.substitutions">                    true 1, false 0, yes 'Y', no 'N'                </prop>                <prop                    key="hibernate.bytecode.use_reflection_optimizer">                    true                </prop>                <prop key="hibernate.use_outer_join">true</prop>                <prop key="hibernate.prepare_sql">true</prop>                <prop key="hibernate.query.factory_class">                    org.hibernate.hql.ast.ASTQueryTranslatorFactory                </prop>            </props>        </property>        <property name="mappingResources">            <list>                <value>xxx/xx/xx.hbm.xml</value>                <value>xxx/xx/xx.hbm.xml</value>            </list>        </property>    </bean>

<bean id="dataSource"        class="com.mchange.v2.c3p0.ComboPooledDataSource"        destroy-method="close" abstract="false" singleton="true"        lazy-init="default" autowire="default" dependency-check="default">        <property name="driverClass">            <value>oracle.jdbc.driver.OracleDriver</value>        </property>        <property name="jdbcUrl">            <value>jdbc:oracle:thin:@192.168.0.1:1521:orcl</value>        </property>        <property name="user">            <value>username</value>        </property>        <property name="password">            <value>password</value>        </property>        <property name="minPoolSize">            <value>10</value>        </property>        <property name="maxPoolSize">            <value>20</value>        </property>        <property name="initialPoolSize">            <value>10</value>        </property>    </bean>    <bean id="sessionFactory"        class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">        <property name="dataSource">            <ref bean="dataSource"></ref>        </property>        <property name="hibernateProperties">            <props>                <prop key="hibernate.dialect">                    org.hibernate.dialect.OracleDialect                </prop>                <prop key="hibernate.show_sql">                    false                </prop>                <prop key="hibernate.generate_statistics">true</prop>                <prop key="hibernate.cache.use_query_cache">                    true                </prop>                <prop key="hibernate.cache.use_second_level_cache">                    true                </prop>                <prop key="hibernate.cache.provider_class">                    net.sf.ehcache.hibernate.EhCacheProvider                </prop>                <prop key="hibernate.connection.provider_class">                    org.hibernate.connection.C3P0ConnectionProvider                </prop>                <prop key="hibernate.query.substitutions">                    true 1, false 0, yes 'Y', no 'N'                </prop>                <prop                    key="hibernate.bytecode.use_reflection_optimizer">                    true                </prop>                <prop key="hibernate.use_outer_join">true</prop>                <prop key="hibernate.prepare_sql">true</prop>                <prop key="hibernate.query.factory_class">                    org.hibernate.hql.ast.ASTQueryTranslatorFactory                </prop>            </props>        </property>        <property name="mappingResources">            <list>                <value>xxx/xx/xx.hbm.xml</value>                <value>xxx/xx/xx.hbm.xml</value>            </list>        </property>    </bean>