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

时间：2021-08-28 20:32:51

接上一个博文（http://www.loveweir.com/html/18.html），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>

其他不需要变动，这样就ok。

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