我們正在基於Spring的Web應用中的關鍵業務高可用性的工作。 Hibernate是ORM,MySQL是使用的數據庫。我們的架構迫使我們有以下機制。使用對Hibernate的回退數據源春
- Webapp首先嚐試連接到主MySQL服務器。
- 如果失敗,它將連接到次要MySQL服務器,該服務器大部分與數據不同步。
- 的Web應用程序需要知道哪個MySQL服務器它連接到,因爲我們要通知時,他使用輔助服務器的用戶。
- 只要連接重新建立與主,連接必須從次級切換到主。
我停留在第一個階段。我無法找到如何指導Spring/Hibernate使用多個數據庫服務器。
這是當前配置文件(去掉不需要的東西):
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 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:lang="http://www.springframework.org/schema/lang"
xmlns:p="http://www.springframework.org/schema/p" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">
<context:annotation-config />
<context:component-scan base-package="com.smartshop" />
<bean
class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor" />
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/primarydb" />
<property name="username" value="username" />
<property name="password" value="password" />
<property name="maxIdle" value="10" />
<property name="maxActive" value="100" />
<property name="maxWait" value="10000" />
<property name="validationQuery" value="select 1" />
<property name="testOnBorrow" value="false" />
<property name="testWhileIdle" value="true" />
<property name="timeBetweenEvictionRunsMillis" value="1200000" />
<property name="minEvictableIdleTimeMillis" value="1800000" />
<property name="numTestsPerEvictionRun" value="5" />
<property name="defaultAutoCommit" value="false" />
</bean>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="configLocation">
<value>/WEB-INF/hibernate.cfg.xml</value>
</property>
<property name="configurationClass">
<value>org.hibernate.cfg.AnnotationConfiguration</value>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.show_sql">false</prop>
</props>
</property>
</bean>
<tx:annotation-driven />
<bean id="transactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<bean
class="org.springframework.orm.hibernate3.support.OpenSessionInViewInterceptor"
name="openSessionInViewInterceptor">
<property name="sessionFactory" ref="sessionFactory"></property>
<property name="flushMode">
<bean
id="org.springframework.orm.hibernate3.HibernateAccessor.FLUSH_AUTO"
class="org.springframework.beans.factory.config.FieldRetrievingFactoryBean" />
</property>
</bean>
<bean id="handlerMapping"
class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">
<property name="interceptors">
<list>
<ref bean="localeChangeInterceptor" />
<ref bean="openSessionInViewInterceptor" />
</list>
</property>
</bean>
有沒有一種方法來定義彈簧連接到備份數據源當主數據源不可訪問?
* *也許這將是有益的:http://ha-jdbc.sourceforge.net – 2012-03-13 08:20:52
不會出現服務我的目的:( – 2012-03-13 09:49:50