如何利用"c3p0"配置Oracle和MySQL连接

Answer 1

一、连接Oracle数据库<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>二.连接mysql数据库<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& characterEncoding=utf-8&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.