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目前，我在applicationContext.xml中使用Hikari配置了一个数据源。我想在同一个xml文件中配置一个主/从类型的数据源。用于主/从数据源的xml中的Hikari配置
另外我该如何建立一个新的实体经理工厂在同一个？
我这配置为1点的数据源（读作主）applicationContext.xml的样子：
<xml version="1.0" encoding="UTF-8" standalone="no"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:task="http://www.springframework.org/schema/task"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context"
xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:jdbc="http://www.springframework.org/schema/jdbc"
xsi:schemaLocation="http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.2.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.2.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd
http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task.xsd">
<context:property-placeholder location="classpath*:META-INF/spring/*.properties" />
<context:spring-configured />
<context:component-scan base-package="com.lkart.dao">
</context:component-scan>
<bean id="dataSource" class="com.zaxxer.hikari.HikariDataSource"
destroy-method="close">
<property name="dataSourceClassName" value="${database.driverClassName}" />
<property name="maximumPoolSize" value="10" />
<property name="maxLifetime" value="1800000" />
<property name="idleTimeout" value="600000" />
<property name="connectionTimeout" value="60000" />
<property name="dataSourceProperties">
<props>
<prop key="url">${database.url}</prop>
<prop key="user">${database.username}</prop>
<prop key="password">${database.password}</prop>
<prop key="prepStmtCacheSize">250</prop>
<prop key="prepStmtCacheSqlLimit">2048</prop>
<prop key="cachePrepStmts">true</prop>
<prop key="useServerPrepStmts">true</prop>
</props>
</property>
</bean>
<bean
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"
id="entityManagerFactory">
<property name="persistenceXmlLocation" value="classpath*:META-INF/persistence.xml" />
<property name="persistenceUnitName" value="persistenceUnit" />
<property name="dataSource" ref="dataSource" />
</bean>
<bean class="org.springframework.orm.jpa.JpaTransactionManager"
id="transactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
<tx:annotation-driven transaction-manager="transactionManager" />
</beans>
我怎么配置这个XML添加一个奴隶数据源？