spring 4 + jpa(hibernate 3/4) + spring mvc 多数据源配置(二)+Druid连接池

接上一个博文，没有数据库连接池，纯粹用jpa的官方链接。

所以这次要加上连接池本文用Druid连接池来实现多数据源的配置。

persistence.xml 这个文件可以省略了，全部配置在applicationContext.xml 里面：

 

<?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:jpa="http://www.springframework.org/schema/data/jpa"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	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-4.1.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd
		http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd
		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd
		http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.1.xsd
		http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.2.xsd">
	
	<context:annotation-config/>
	<context:component-scan base-package="com.tw"/>
	
	<!-- mysql数据源配置 -->
    <bean id="mysqlDataSource" class="com.alibaba.druid.pool.DruidDataSource"
        init-method="init" destroy-method="close">
        <!-- 驱动名称 -->
        <property name="DriverClassName" value="com.mysql.jdbc.Driver" />
        <!-- JDBC连接串 -->
        <property name="url"
            value="jdbc:mysql://192.168.132.1:3306/twq?useUnicode=true&amp;characterEncoding=UTF-8" />
        <!-- 数据库用户名称 -->
        <property name="username" value="ws" />
        <!-- 数据库密码 -->
        <property name="password" value="unionmanws" />
        <!-- 连接池最大使用连接数量 -->
        <property name="maxActive" value="20" />
        <!-- 初始化大小 -->
        <property name="initialSize" value="5" />
        <!-- 获取连接最大等待时间 -->
        <property name="maxWait" value="60000" />
        <!-- 连接池最小空闲 -->
        <property name="minIdle" value="2" />
        <!-- 逐出连接的检测时间间隔 -->
        <property name="timeBetweenEvictionRunsMillis" value="3000" />
        <!-- 最小逐出时间 -->
        <property name="minEvictableIdleTimeMillis" value="300000" />
        <!-- 测试有效用的SQL Query -->
        <property name="validationQuery" value="SELECT 'x'" />
        <!-- 连接空闲时测试是否有效 -->
        <property name="testWhileIdle" value="true" />
        <!-- 获取连接时测试是否有效 -->
        <property name="testOnBorrow" value="false" />
        <!-- 归还连接时是否测试有效 -->
        <property name="testOnReturn" value="false" />
    </bean>
	
  	<!-- 整合mysqljpa -->
  	<bean id="mysqlEntityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
  	    <property name="dataSource" ref="mysqlDataSource"></property>
  		<property name="packagesToScan" value="com.tw.entity.sys"></property>
  		<property name="persistenceUnitName" value="mysqldb"></property>
  		<property name="jpaVendorAdapter">
  			<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
  				<property name="showSql" value="true"></property>
  			</bean>
  		</property>
  		<property name="jpaProperties">
            <props>
                <!--设置外连接抓取树的最大深度 -->
                <prop key="hibernate.max_fetch_depth">3</prop>
                <prop key="hibernate.jdbc.fetch_size">18</prop>
                <prop key="hibernate.jdbc.batch_size">10</prop>
                <!-- 自动建表类型 validate|create|create-drop|update -->
                <!-- <prop key="hibernate.hbm2ddl.auto">validate</prop> -->
                <!-- 是否显示SQL -->
                <prop key="hibernate.show_sql">false</prop>
                <!-- 显示SQL是否格式化 -->
                <prop key="hibernate.format_sql">false</prop>
                <!-- 关闭二级缓存 -->
                <prop key="hibernate.cache.provider_class">org.hibernate.cache.NoCacheProvider</prop>
                <!-- 关闭实体字段映射校验 -->
                <prop key="javax.persistence.validation.mode">none</prop>
            </props>
        </property>
  	</bean>
  	<bean id="mysqltransactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
    	<property name="entityManagerFactory" ref="mysqlEntityManagerFactory" />
    	<qualifier value="mysqlEM"/>
  	</bean>
	<tx:annotation-driven transaction-manager="mysqltransactionManager" proxy-target-class="false"/>	
  	
  	
  	<!-- sqlserver数据源配置 -->
    <bean id="sqlserverDataSource" class="com.alibaba.druid.pool.DruidDataSource"
        init-method="init" destroy-method="close">
        <!-- 驱动名称 -->
        <property name="DriverClassName" value="com.microsoft.sqlserver.jdbc.SQLServerDriver" />
        <!-- JDBC连接串 -->
        <property name="url"
            value="jdbc:sqlserver://192.168.130.10:1433;DatabaseName=unionman" />
        <!-- 数据库用户名称 -->
        <property name="username" value="sa" />
        <!-- 数据库密码 -->
        <property name="password" value="123abc" />
        <!-- 连接池最大使用连接数量 -->
        <property name="maxActive" value="20" />
        <!-- 初始化大小 -->
        <property name="initialSize" value="5" />
        <!-- 获取连接最大等待时间 -->
        <property name="maxWait" value="60000" />
        <!-- 连接池最小空闲 -->
        <property name="minIdle" value="2" />
        <!-- 逐出连接的检测时间间隔 -->
        <property name="timeBetweenEvictionRunsMillis" value="3000" />
        <!-- 最小逐出时间 -->
        <property name="minEvictableIdleTimeMillis" value="300000" />
        <!-- 测试有效用的SQL Query -->
        <property name="validationQuery" value="SELECT 'x'" />
        <!-- 连接空闲时测试是否有效 -->
        <property name="testWhileIdle" value="true" />
        <!-- 获取连接时测试是否有效 -->
        <property name="testOnBorrow" value="false" />
        <!-- 归还连接时是否测试有效 -->
        <property name="testOnReturn" value="false" />
    </bean>
  	
  	<!-- 整合sqlserverjpa -->
  	<bean id="sqlserverEntityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
  	    <property name="dataSource" ref="sqlserverDataSource"></property>
  		<property name="packagesToScan" value="com.tw.entity.plan"></property>
  		<property name="persistenceUnitName" value="sqlserverdb"></property>
  		<property name="jpaVendorAdapter">
  			<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
  				<property name="showSql" value="true"></property>
  			</bean>
  		</property>
  		<property name="jpaProperties">
            <props>
                <!--设置外连接抓取树的最大深度 -->
                <prop key="hibernate.max_fetch_depth">3</prop>
                <prop key="hibernate.jdbc.fetch_size">18</prop>
                <prop key="hibernate.jdbc.batch_size">10</prop>
                <!-- 自动建表类型 validate|create|create-drop|update -->
                <!-- <prop key="hibernate.hbm2ddl.auto">validate</prop> -->
                <!-- 是否显示SQL -->
                <prop key="hibernate.show_sql">false</prop>
                <!-- 显示SQL是否格式化 -->
                <prop key="hibernate.format_sql">false</prop>
                <!-- 关闭二级缓存 -->
                <prop key="hibernate.cache.provider_class">org.hibernate.cache.NoCacheProvider</prop>
                <!-- 关闭实体字段映射校验 -->
                <prop key="javax.persistence.validation.mode">none</prop>
            </props>
        </property>
  	</bean>
  	<bean id="sqlservertransactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
    	<property name="entityManagerFactory" ref="sqlserverEntityManagerFactory" />
    	<qualifier value="sqlserverEM"/>
  	</bean>
	<tx:annotation-driven transaction-manager="sqlservertransactionManager" proxy-target-class="false"/>	

</beans>

其他地方按上次的配置不需要做改动。这样就好了。

文章转载自：www.loveweir.com

评论

1 楼 mimi0359 2017-10-25  

哥们我们原来有两个项目，两个数据库，都是通过jpa接口写的，然后使用<jpa:repositories base-package="要扫描的dao接口包名称">的方式生成dao接口的代理类的，现在要合并为一个项目，需要配置为多数据源的方式，这种怎么处理啊？