ããé¦å
é
ç½®å¤ä¸ªdatasource
ãã
ãã<!-- 主æ°æ®åºçæ°æ®æ®æº -->
<bean id="masterDataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="oracle.jdbc.OracleDriver" />
<property name="url" value="jdbc:oracle:thin:@192.168.10.11:1521:trew" />
<property name="username" value="poi" />
<property name="password" value="poi" />
</bean>
<!-- å¤ä»½åºçæ°æ®æ®æº -->
<bean id="slaveDataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="oracle.jdbc.OracleDriver" />
<property name="url" value="jdbc:oracle:thin:@192.168.10.12:1521:trew" />
<property name="username" value="poi2" />
<property name="password" value="poi2" />
</bean>
ãã
ãã2ãåä¸ä¸ªDynamicDataSource类继æ¿AbstractRoutingDataSourceï¼å¹¶å®ç°determineCurrentLookupKeyæ¹æ³
ããpublic class DynamicDataSource extends AbstractRoutingDataSource {
ãã@SuppressWarnings("unused")
ããprivate Log logger = LogFactory.getLog(getClass());
ãã
ãã@Override
ããprotected Object determineCurrentLookupKey() {
ããreturn DbContextHolder.getDbType();
ãã}
ãã}
ãã
ããpublic class DbContextHolder {
ãã@SuppressWarnings("rawtypes")
ãã
ããprivate static final ThreadLocal contextHolder = new ThreadLocal();
ãã
ãã@SuppressWarnings("unchecked")
ããpublic static void setDbType(String dbType) {
ããcontextHolder.set(dbType);
ãã}
ãã
ããpublic static String getDbType() {
ããreturn (String) contextHolder.get();
ãã}
ãã
ããpublic static void clearDbType() {
ããcontextHolder.remove();
ãã}
ãã}
ãã
ãã
ãã
ãã3. é
ç½®å¨ææ°æ®æº
ãã
ãã<!--å°DynamicDataSource Beanå å
¥å°Springçä¸ä¸æxmlé
ç½®æ件ä¸å»ï¼åæ¶é
ç½®DynamicDataSourceçtargetDataSources(å¤æ°æ®æºç®æ )å±æ§çMapæ å°ã-->
<bean id="dataSource" class="cn.com.core.datasource.DynamicDataSource">
<property name="targetDataSources">
<map key-type="java.lang.String">
<entry key="masterDataSource" value-ref="masterDataSource" />
<entry key="slaveDataSource" value-ref="slaveDataSource" />
</map>
</property>
<property name="defaultTargetDataSource" ref="masterDataSource"/>
</bean>
ãã
ãã4.使ç¨å¨ææ°æ®æº(hibernate)
ãã
ãã<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="lobHandler" ref="lobHandler"/>
<property name="eventListeners">
<map>
<entry key="post-insert">
<ref bean="logListener"/>
</entry>
<entry key="post-update">
<ref bean="logListener"/>
</entry>
<entry key="post-delete">
<ref bean="logListener"/>
</entry>
</map>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">
org.hibernate.dialect.Oracle10gDialect
<!-- org.hibernate.dialect.OracleDerbyDialect -->
</prop>
<prop key="hibernate.show_sql">true</prop>
<!-- <prop key="hibernate.generate_statistics">true</prop> -->
<prop key="hibernate.connection.release_mode">
auto
</prop>
<prop key="hibernate.autoReconnect">true</prop>
<!--
<prop key="hibernate.hbm2ddl.auto">update</prop>
-->
<prop key="hibernate.cache.use_second_level_cache">false</prop>
<prop key="hibernate.cache.provider_class">
org.hibernate.cache.EhCacheProvider
</prop>
<prop key="hibernate.cache.use_query_cache">false</prop>
</props>
</property>
</bean>
ãã
ãã
ãã
ãã
ãã使ç¨Hibernateæ¶çäºå¡ç®¡çé
置示ä¾ï¼
ãã
ãã<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
< property name="sessionFactory" ref="sessionFactory" />
bean>
ãã
ãã6.å¨ææ°æ®æºç管çæ§å¶
ãã
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