spring配置连接池

Posted 2021-06-17 滑稽404＃

Spring配置连接池的流程一样，不同的连接池，依赖注入这一步骤不同而已

1.引入context命名空间

<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">

2.引入外部文件

<context:property-placeholder location="classpath:resource/jdbc.properties"/>

classpath后面写jdbc配置文件的地址

driverClassName=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3309/db3
username=123
password=123

3.配置数据源

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName" value="${driverClassName}" />
        <property name="url" value="${url}" />
        <property name="username" value="${username}" />
        <property name="password" value="${password}" />
 </bean>

spring连接池的配置基本流程就是这样，配置不同的连接池就是依赖注入不一样而已，我这里用的dbcp

4.配置Druid数据源

	<!--引入外部文件-->
	<context:property-placeholder location="classpath:jdbc.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}" />
    </bean>

    <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
        <property name="dataSource" ref="dataSource"/>
    </bean>