学步园

/**

*数据源（mysql、sqlserver、oracle）+数据源信息配置(jndi、properties、xml)+数据源信息读取(jdbc、spring、hibernate)
*本文件总结了mysql,sqlserver,oracle三种数据源的连接方式
*其中包括Spring、Hibernate的连接方式
*并通过属性文件、JNDI、配置文件三种方式进行连接
*/

1.通过属性文件
读取数据源配置

--jdbc.properties
1）mysql

jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncodeing=utf-8
jdbc.username=root
jdbc.password=123456

2)sqlserver

jdbc.driverClassName=net.sourceforge.jtds.jdbc.Driver
jdbc.url=jdbc:jtds:sqlserver://localhost:1433/test
jdbc.username=sa
jdbc.password=sa

3)oracle

jdbc.driverClassName=oracle.jdbc.driver.OracleDriver
jdbc.url=jdbc:orcale:thin://localhost:1521/nquser
jdbc.username=wapcms
jdbc.password=wapcms

--Spring-applicationContext-data.xml

<beans>
    <bean id="dataSource"
        class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <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="propertyConfigurer"
        class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="locations">
            <list>
                <value>classpath:jdbc.properties</value>
            </list>
        </property>
    </bean>
    <!-- 设定transactionManager -->
    <bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>
   
    <tx:annotation-driven/>
</beans>

2.用JNDI
读取数据源server.xml

在<GlobalNamingResources>标签元素下填加
1)mysql

<Resource name="jdbc/mysqlonline" type="javax.sql.DataSource"
    driverClassName="com.mysql.jdbc.Driver"
    password="123456"
    maxIdle="30"
    maxWait="10000"
    username="root"
    url="jdbc:mysql://localhost:3306/test?useUnicode=true&amp;characterEncoding=gb2312
    maxActive="100" />
2)orcale

<Resource name="jdbc/wapcms"  type="javax.sql.DataSource"
    driverClassName="oracle.jdbc.driver.OracleDriver"
    password="123456"
    maxIdle="30"
    maxWait="10000"
    username="root"
    url="jdbc:oracle:thin:@localhost:1521:nquser"
    maxActive="100"
    removeAbandoned="true"
    removeAbandonedTimeout="300"
    logAbandoned="true"/>
3)sqlserver

<Resource name="jdbc/user"  type="javax.sql.DataSource"
    driverClassName="net.sourceforge.jtds.jdbc.Driver"
    password="sa"
    maxIdle="30"
    maxWait="10000"
    username="sa"
    url="jdbc:jtds:sqlserver://localhost:1433/test"
    maxActive="100"
    removeAbandoned="true"
    removeAbandonedTimeout="300"
    logAbandoned="true"/>

在<Host>下
    <Context path="" docBase="E:/WAP/WAP_CMS/WebContent"
        debug="0" reloadable="true" privileged="true" crossContext="true"
        useNaming="true">
        <ResourceLink name="jdbc/wapcms" global="jdbc/wapcms" type="javax.sql.DataSource" />
        <ResourceLink name="jdbc/mysqlonline" global="jdbc/mysqlonline" type="javax.sql.DataSource" />
    </Context>
</Host>

--web.xml

<resource-ref>
    <description>DB Connection</description>
    <res-ref-name>jdbc/wapcms</res-ref-name>
    <res-type>javax.sql.DataSource</res-type>
    <res-auth>Container</res-auth>
</resource-ref>

--Spring-application-data.xml

<bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
    <property name="jndiName">
        <value>java:comp/env/jdbc/wapcms</value>
    </property>
</bean>
<!-- 设定transactionManager -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    <property name="dataSource" ref="dataSource" />
</bean>

3.用配置文件
读取数据源信息
---hibernate.cfg.xml

<hibernate-configuration>
    <session-factory>
        <!-- Database connection settings -->
        <property name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
        <property name="connection.url">jdbc:oracle:thin:@localhost:1521:ora</property>
        <property name="connection.username">koooso</property>
        <property name="connection.password">koooso</property>

        <!-- JDBC connection pool (use the built-in) -->
        <property name="connection.pool_size">5</property>

        <!-- 注意如果是运行在application中时，必须要有current_session_context_class这个属性，且值为

       thread。如果是运行在WEB服务器中则需要将值设置成jta。否则在运行时会报Exception

       in thread "main" org.hibernate.HibernateException: No CurrentSessionContext configured! 这个异常-->

       <property name="current_session_context_class">jta</property>

        <!-- Echo all executed SQL to stdout -->
        <property name="show_sql">true</property>

        <!-- SQL dialect -->
        <property name="dialect">org.hibernate.dialect.Oracle9Dialect</property>

        <!-- Drop and re-create the database schema on startup -->
        <property name="hbm2ddl.auto">create</property>

        <mapping resource="com/chinamworld/hibernate/tf/MyTest.hbm.xml"/>

    </session-factory>

</hibernate-configuration>

 
---sqlserver Spring

<bean id="dataSource"
   class="org.apache.commons.dbcp.BasicDataSource">
   <property name="driverClassName"
    value="net.sourceforge.jtds.jdbc.Driver">
   </property>
   <property name="url"
    value="jdbc:jtds:sqlserver://localhost:1433/test">
   </property>
   <property name="username" value="sa"></property>
   <property name="password" value="admin"></property>
</bean>

<!-- 将Hibernate交由Spring管理(Hibernate相关配置信息) ,创建SessionFactory-->
<bean id="sessionFactory"
   class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
   <property name="dataSource">
    <ref bean="dataSource" />
   </property>
   <property name="hibernateProperties">
    <props>
     <prop key="hibernate.dialect">
      org.hibernate.dialect.SQLServerDialect
     </prop>
     <prop key="hibernate.show_sql">true</prop>
    </props>
   </property>
   <property name="mappingResources">
    <list>
     <value>com/wuwei/struts/dao/User.hbm.xml</value>
    </list>
   </property>
</bean>

4.多种数据源配置

<!-- DBCP data source
-->
<!--
<bean id="dataSource"
   class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
   <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
   <property name="defaultAutoCommit" value="false"></property>
   <property name="maxActive" value="50"></property>
   <property name="url" value="jdbc:mysql://localhost:3306/exam"></property>
   <property name="username" value="root"></property>
   <property name="password" value=""></property>
   <property name="password" value="true"></property>
   <property name="password" value="true"></property>
   <property name="password" value="180"></property>
</bean>
   -->

<!-- C3P0 data source
-->
<bean id="dataSource"
   class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
   <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
   <property name="autoCommitOnClose" value="false"></property>
   <property name="maxIdleTime" value="1800"></property> <!-- 最大空闲时间,1800秒内未使用则连接被丢弃。若为0则永不丢弃 -->
   <property name="maxPoolSize" value="50"></property>
   <property name="initialPoolSize" value="5"></property>
   <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/exam"></property>
   <property name="user" value="root"></property>
   <property name="password" value=""></property>
</bean>

<!-- JNDI data source
-->
<bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
    <property name="jndiName">
        <value>java:comp/env/jdbc/wapcms</value>
    </property>
</bean>

<!-- Hibernate sessionFactory
-->
<bean id="sessionFactory"
   class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
   <property name="dataSource">
    <ref bean="dataSource" />
   </property>
   <property name="hibernateProperties">
    <props>
     <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
     <prop key="hibernate.show_sql">true</prop>
    </props>
   </property>
   <property name="mappingResources">
    <list>
    <value>com/brady/exam/model/Grade.hbm.xml</value>
    <value>com/brady/exam/model/Paper.hbm.xml</value>
    <value>com/brady/exam/model/Test.hbm.xml</value>
    <value>com/brady/exam/model/Subject.hbm.xml</value>
    </list>
   </property>
</bean>

<!-- Tranasction Manager -->

<bean id="transactionManager"
   class="org.springframework.orm.hibernate3.HibernateTransactionManager">
   <property name="sessionFactory">
    <ref bean="sessionFactory" />
   </property>
</bean>

<tx:advice id="txAdvice" transaction-manager="transactionManager">
   <tx:attributes>
    <tx:method name="insert*" propagation="REQUIRED"/>
    <tx:method name="edit*" propagation="REQUIRED"/>
    <tx:method name="save*" propagation="REQUIRED"/>
    <tx:method name="update*" propagation="REQUIRED"/>
    <tx:method name="merge*" propagation="REQUIRED"/>
    <tx:method name="remove*" propagation="REQUIRED"/>
    <tx:method name="delete*" propagation="REQUIRED"/>
    <tx:method name="find*" read-only="true"/>
    <tx:method name="get*" read-only="true"/>
   </tx:attributes>
</tx:advice>

<aop:config>
   <aop:pointcut id="daoPointcut"
    expression="execution(* com.brady.exam.dao.*.*(..))"/>
   <aop:advisor advice-ref="txAdvice" pointcut-ref="daoPointcut"/>
</aop:config>

<!-- End Tranasction Manager -->

<bean id="userDAO" class="com.brady.exam.dao.impl.hibernate.UserDAO">
   <property name="sessionFactory">
    <ref bean="sessionFactory" />
   </property>
</bean>

<bean id="basicDAO" class="com.brady.exam.dao.impl.hibernate.BasicDAO">
   <property name="sessionFactory">
    <ref bean="sessionFactory" />
   </property>
</bean>

</beans>