Spring中关联druid数据库连接池

Spring中关联druid数据库连接池

IOC操作Bean管理外部属性文件

1，新建maven工程，引入依赖

	<!--Druid数据库连接池依赖-->
	<dependency>
		<groupId>com.alibaba</groupId>
		<artifactId>druid</artifactId>
		<version>1.0.9</version>
	</dependency>
	<dependency>
		<groupId>org.springframework</groupId>
		<artifactId>spring-context</artifactId>
		<version>5.2.5.RELEASE</version>
	</dependency>

2，在resources目录下新将Spring配置文件

​ druidSpring.xml 和 druidProperties.properties 数据库信息配置文件

jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=dbc:mysql://localhost:3306/ssm
jdbc.username=root
jdbc.password=123456
max=20

3，在druidSpring.xml中引入数据可配置信息

<?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:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        https://www.springframework.org/schema/beans/spring-beans.xsd 				    http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">

    <!--引入外部配置文件 先引入context名称空间-->
    <context:property-placeholder location="classpath:druidProperties.properties"/>

    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="driverClassName" value="${jdbc.driverClassName}"/>
        <property name="url" value="${jdbc.url}"/>
        <property name="username" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
        <property name="maxActive" value="${max}"/>
    </bean>
    
</beans>