初始 ret 连接 ger tweene map location ase ble
需要在项目中配置多个数据库(比如一个mysql,一个oracle)的时候,可按照如下方式配置
- <bean name="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
- <property name="dataSource" ref="dataSource">
- </property>
- </bean>
- <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" destroy-method="close">
- <!-- 数据库基本信息配置 -->
- <property name="url" value="${url}" />
- <property name="username" value="${db_username}" />
- <property name="password" value="${password}" />
- <property name="driverClassName" value="${driverClassName}" />
- <property name="filters" value="${filters}" />
- <!-- 最大并发连接数 -->
- <property name="maxActive" value="${maxActive}" />
- <!-- 初始化连接数量 -->
- <property name="initialSize" value="${initialSize}" />
- <!-- 配置获取连接等待超时的时间 -->
- <property name="maxWait" value="${maxWait}" />
- <!-- 最小空闲连接数 -->
- <property name="minIdle" value="${minIdle}" />
- <!-- 配置间隔多久才进行一次检测,检测需要关闭的空闲连接,单位是毫秒 -->
- <property name="timeBetweenEvictionRunsMillis" value="${timeBetweenEvictionRunsMillis}"
- />
- <!-- 配置一个连接在池中最小生存的时间,单位是毫秒 -->
- <property name="minEvictableIdleTimeMillis" value="${minEvictableIdleTimeMillis}"
- />
- <property name="validationQuery" value="${validationQuery}" />
- <property name="testWhileIdle" value="${testWhileIdle}" />
- <property name="testOnBorrow" value="${testOnBorrow}" />
- <property name="testOnReturn" value="${testOnReturn}" />
- <property name="maxOpenPreparedStatements" value="${maxOpenPreparedStatements}"
- />
- <!-- 打开removeAbandoned功能 -->
- <property name="removeAbandoned" value="${removeAbandoned}" />
- <!-- 1800秒,也就是30分钟 -->
- <property name="removeAbandonedTimeout" value="${removeAbandonedTimeout}"
- />
- <!-- 关闭abanded连接时输出错误日志 -->
- <property name="logAbandoned" value="${logAbandoned}" />
- </bean>
- <!-- 配置mybatis -->
- <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
- <property name="dataSource" ref="dataSource" />
- <property name="configLocation" value="/web-INF/mybatis-config.xml">
- </property>
- <!-- mapper扫描 -->
- <property name="mapperLocations" value="/WEB-INF/mybatis-mapper/mysql/*.xml">
- </property>
- </bean>
- <bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
- <constructor-arg ref="sqlSessionFactory" />
- </bean>
第二个数据库的配置
注意给bean起不同的名字,扫描不同的mapper文件目录,就可以了。
- <bean name="transactionManagerEx" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
- <property name="dataSource" ref="dataSourceEx">
- </property>
- </bean>
- <bean id="dataSourceEx" class="com.alibaba.druid.pool.DruidDataSource"
- destroy-method="close">
- <!-- 数据库基本信息配置 -->
- <property name="url" value="${ex.url}" />
- <property name="username" value="${ex.db_username}" />
- <property name="password" value="${ex.password}" />
- <property name="driverClassName" value="${ex.driverClassName}" />
- <property name="filters" value="${filters}" />
- <!-- 最大并发连接数 -->
- <property name="maxActive" value="${maxActive}" />
- <!-- 初始化连接数量 -->
- <property name="initialSize" value="${initialSize}" />
- <!-- 配置获取连接等待超时的时间 -->
- <property name="maxWait" value="${maxWait}" />
- <!-- 最小空闲连接数 -->
- <property name="minIdle" value="${minIdle}" />
- <!-- 配置间隔多久才进行一次检测,检测需要关闭的空闲连接,单位是毫秒 -->
- <property name="timeBetweenEvictionRunsMillis" value="${timeBetweenEvictionRunsMillis}"
- />
- <!-- 配置一个连接在池中最小生存的时间,单位是毫秒 -->
- <property name="minEvictableIdleTimeMillis" value="${minEvictableIdleTimeMillis}"
- />
- <property name="validationQuery" value="${validationQuery}" />
- <property name="testWhileIdle" value="${testWhileIdle}" />
- <property name="testOnBorrow" value="${testOnBorrow}" />
- <property name="testOnReturn" value="${testOnReturn}" />
- <property name="maxOpenPreparedStatements" value="${maxOpenPreparedStatements}"
- />
- <!-- 打开removeAbandoned功能 -->
- <property name="removeAbandoned" value="${removeAbandoned}" />
- <!-- 1800秒,也就是30分钟 -->
- <property name="removeAbandonedTimeout" value="${removeAbandonedTimeout}"
- />
- <!-- 关闭abanded连接时输出错误日志 -->
- <property name="logAbandoned" value="${logAbandoned}" />
- </bean>
- <!-- 配置mybatis -->
- <bean id="sqlSessionFactoryEx" class="org.mybatis.spring.SqlSessionFactoryBean">
- <property name="dataSource" ref="dataSourceEx" />
- <property name="configLocation" value="/WEB-INF/mybatis-config.xml">
- </property>
- <!-- mapper扫描 -->
- <property name="mapperLocations" value="/WEB-INF/mybatis-mapper/oracle/*.xml">
- </property>
- </bean>
- <bean id="sqlSessionTemplateEx" class="org.mybatis.spring.SqlSessionTemplate">
- <constructor-arg ref="sqlSessionFactoryEx" />
- </bean>
使用的时候
Dao的bean中使用相应的sqlSessionTemplate,比如在xml中可以如下配置
- <bean id="baseDao" class="com.sample.web.dao.DaoSupport">
- <property name="sqlSessionTemplate" ref="sqlSessionTemplate"></property>
- </bean>
- <bean id="baseDaoEx" class="com.sample.web.dao.DaoSupport">
- <property name="sqlSessionTemplate" ref="sqlSessionTemplateEx"></property>
- </bean>
Web项目中用mybatis配置多个数据库
来源: http://www.bubuko.com/infodetail-2348173.html