Activemq持久化消息到MySql数据库中

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1.添加MySql数据源

       打开Activemq安装目录下的conf/activemq.xml文件，添加MySql数据源。默认情况下Activemq使用KahaDB存储，注解掉KahaDB配置，改为mysql配置如下：

 

< persistenceAdapter >     < jdbcPersistenceAdapter dataSource ="#MySQL-DS" /> persistenceAdapter >

 

该配置表示，我们将要使用名称为“MySQL-DS”的作为mysql数据源。

2. 配置MySql数据源

      在节点后面，增加MySQL数据源配置：

 

< bean id ="MySQL-DS" class ="org.apache.commons.dbcp.BasicDataSource" destroy-ethod ="close" >     < property name ="driverClassName" value ="com.mysql.jdbc.Driver" />     < property name ="url" value ="jdbc:mysql://127.0.0.1:3306/activemq?relaxAutoCommit=true" />     < property name ="username" value ="用户名" />     < property name ="password" value ="登录密码" />     < property name ="poolPreparedStatements" value ="true" /> bean >

 

此处配置类似于spring的Bean配置，id 要与上面的保持一致。

 

3. 配置完成后，将mysql驱动包加入到 Activemq 的 lib目录下，启动Activemq。查看activemq数据库会有三张表：activemq_acks  ，activemq_lock  ，activemq_msgs 

数据表activemq_msgs即为持久化消息表；

 

整个activemq持久消息到mysql数据库配置如下：

 

xml version="1.0" encoding="UTF-8" ?> < beans xmlns ="http://www.springframework.org/schema/beans" xmlns:amq ="http://activemq.apache.org/schema/core" xmlns:xsi ="http://www.w3.org/2001/XMLSchema-instance"     xsi:schemaLocation ="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd   http://activemq.apache.org/schema/core http://activemq.apache.org/schema/core/activemq-core.xsd" >         < bean class ="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer" >         < property name ="locations" >             < value > classpath:/META-INF/credentials.properties value >         property >     bean >         < broker xmlns ="http://activemq.apache.org/schema/core" brokerName ="localhost" >                 < destinationPolicy >             < policyMap >                 < policyEntries >                     < policyEntry topic =">" producerFlowControl ="true" memoryLimit ="1mb" >                         < pendingSubscriberPolicy >                             < vmCursor />                         pendingSubscriberPolicy >                     policyEntry >                     < policyEntry queue =">" producerFlowControl ="true" memoryLimit ="1mb" >                                             policyEntry >                 policyEntries >             policyMap >         destinationPolicy >                 < managementContext >             < managementContext createConnector ="false" />         managementContext >                         < persistenceAdapter >             < jdbcPersistenceAdapter dataSource ="#MySQL-DS" />         persistenceAdapter >                 < transportConnectors >             < transportConnector name ="openwire" uri ="tcp://0.0.0.0:61616" />         transportConnectors >     broker >         <bean id="MySQL-DS" class="org.apache.commons.dbcp.BasicDataSource" destroy-thod="close">     <property name="driverClassName" value="com.mysql.jdbc.Driver"/>     <property name="url" value="jdbc:mysql://127.0.0.1:3306/activemq?relaxAutoCommit=true"/>     <property name="username" value="用户名"/>     <property name="password" value="登录密码"/>     <property name="poolPreparedStatements" value="true"/> bean>         < import resource ="jetty.xml" /> beans >