XXX.xml

xmlns:util="http://www.springframework.org/schema/util"

<!-- 配置DRUID连接池 -->

    <util:properties id="cfg" location="classpath:jdbc.properties"/>

    <bean id="druidDataSource" class="com.alibaba.druid.pool.DruidDataSource"

destroy-method="close" init-method="init" lazy-init="true">

<property name="driverClassName" value="#{cfg.driver}" />

<property name="url" value="#{cfg.url}" />

<property name="username" value="#{cfg.username}" />

<property name="password" value="#{cfg.password}" />

    </bean>

driver=com.mysql.jdbc.Driver

url=jdbc:mysql://localhost:3306/jsondata?useUnicode=true&characterEncoding=utf8

username=root

password=root123

<dependency>

  <groupId>com.alibaba</groupId>

  <artifactId>druid</artifactId>

  <version>1.0.23</version>

  </dependency>