Spring MVC配置双数据源实现一个java项目同时连接两个数据库的方法
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2020-08-30
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Spring MVC配置双数据源实现一个配置双数据源实现一个java项目同时连接两个数据库的方法项目同时连接两个数据库的方法
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实现方法：实现方法：
数据源在配置文件中的配置数据源在配置文件中的配置
<pre name="code" class="java"><?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:cache="http://www.springframework.org/schema/cache"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jdbc="http://www.springframework.org/schema/jdbc" xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:jms="http://www.springframework.org/schema/jms" xmlns:lang="http://www.springframework.org/schema/lang"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:oxm="http://www.springframework.org/schema/oxm"
xmlns:p="http://www.springframework.org/schema/p" xmlns:task="http://www.springframework.org/schema/task"
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-3.1.xsd
http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.1.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.1.xsd
http://www.springframework.org/schema/jms http://www.springframework.org/schema/jms/spring-jms-3.1.xsd
http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang-3.1.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
http://www.springframework.org/schema/oxm http://www.springframework.org/schema/oxm/spring-oxm-3.1.xsd
http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.1.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.1.xsd">
<context:annotation-config />
<context:component-scan base-package="com"></context:component-scan>
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:com/resource/config.properties</value>
</list>
</property>
</bean>
<bean id="dataSourceOne" class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<property name="driverClass" value="${dbOne.jdbc.driverClass}" />
<property name="jdbcUrl" value="${dbOne.jdbc.url}" />
<property name="user" value="${dbOne.jdbc.user}" />
<property name="password" value="${dbOne.jdbc.password}" />
<property name="initialPoolSize" value="${dbOne.jdbc.initialPoolSize}" />
<property name="minPoolSize" value="${dbOne.jdbc.minPoolSize}" />
<property name="maxPoolSize" value="${dbOne.jdbc.maxPoolSize}" />
</bean>
<bean id="dataSourceTwo" class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<property name="driverClass" value="${dbTwo.jdbc.driverClass}" />
<property name="jdbcUrl" value="${dbTwo.jdbc.url}" />
<property name="user" value="${dbTwo.jdbc.user}" />
<property name="password" value="${dbTwo.jdbc.password}" />
<property name="initialPoolSize" value="${dbTwo.jdbc.initialPoolSize}" />
<property name="minPoolSize" value="${dbTwo.jdbc.minPoolSize}" />
<property name="maxPoolSize" value="${dbTwo.jdbc.maxPoolSize}" />
</bean>
<bean id="dynamicDataSource" class="com.core.DynamicDataSource">
<property name="targetDataSources">
<map key-type="java.lang.String">
<entry value-ref="dataSourceOne" key="dataSourceOne"></entry>
<entry value-ref="dataSourceTwo" key="dataSourceTwo"></entry>
</map>
</property>
<property name="defaultTargetDataSource" ref="dataSourceOne">
</property>
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dynamicDataSource" />
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.current_session_context_class">org.springframework.orm.hibernate4.SpringSessionContext</prop>
<prop key="hibernate.show_sql">false</prop>
<prop key="hibernate.format_sql">true</prop>
<prop key="hbm2ddl.auto">create</prop>
</props>
</property>
<property name="packagesToScan">
<list>
<value>com.po</value>
</list>
</property>
</bean>
<bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
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