SpringMVC中用于连接数据库的一套配置（搬运）

application中的配置如下所示：

<?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 http://www.springframework.org/schema/beans/spring-beans.xsd
                          http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
    <context:property-placeholder location="classpath:jdbc.properties"/>

    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driver}"/>
        <property name="jdbcUrl" value="${jdbc.url}"/>
        <property name="user" 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>
</beans>

jdbc.properties的配置如下：

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/test
jdbc.username=root
jdbc.password=19980210bigtiger

java代码如下：

package com.itheima.test;
import com.mchange.v2.c3p0.ComboPooledDataSource;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.jdbc.core.JdbcTemplate;
import java.beans.PropertyVetoException;


public class JdbcTemplateTest {
 
    @Test
    public void test2() throws PropertyVetoException {
        ApplicationContext app=new ClassPathXmlApplicationContext("applicationContext.xml");
        JdbcTemplate jdbcTemplate=app.getBean(JdbcTemplate.class);
        int row=jdbcTemplate.update("insert into account values(?,?)","lisi",1000);
        System.out.println(row);
    }
}