package cn.itcast.spring3.demo1;

import java.sql.DriverManager;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.beans.factory.annotation.Qualifier;

import org.springframework.jdbc.core.JdbcTemplate;

import org.springframework.jdbc.datasource.DriverManagerDataSource;

import org.springframework.test.context.ContextConfiguration;

import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import org.springframework.transaction.jta.SpringJtaSynchronizationAdapter;

@RunWith(SpringJUnit4ClassRunner.class)

@ContextConfiguration("classpath:applicationContext.xml")

public class SpringTest1 {

    @Autowired

    @Qualifier("jdbcTemplate")

    private JdbcTemplate jdbcTemplate;//注入Jdbc模板

    @Test

    public void demo2(){

        jdbcTemplate.execute("create table user (id int primary key auto_increment,name varchar(20))");

    }

    @Test

    public void demo1(){

        // 创建连接池:

        DriverManagerDataSource dataSource = new DriverManagerDataSource();//Spring自带的连接池

        // 设置参数:

        dataSource.setDriverClassName("com.mysql.jdbc.Driver");

        dataSource.setUrl("jdbc:mysql:///spring3_day02");

        dataSource.setUsername("root");

        dataSource.setPassword("");

        //使用JDBC的模板:

        //JdbcTemplate jdbcTemplate = new JdbcTemplate();

        //jdbcTemplate.setDataSource(dataSource);

        JdbcTemplate jdbcTemplate = new JdbcTemplate(dataSource);

        jdbcTemplate.execute("create table user (id int primary key auto_increment,name varchar(20))");

    }

}

<?xml version="1.0" encoding="UTF-8"?>

<!-- 引入beans的头 -->

<beans xmlns="http://www.springframework.org/schema/beans"

       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

       xsi:schemaLocation="

http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

    <!-- 配置Spring默认的连接池 -->

    <!-- 这个类由Spring来帮我们创建,它默认情况下只创建一次,因为是单例的. -->

    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">

        <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>

        <property name="url" value="jdbc:mysql:///spring3_day02"></property>

        <property name="username" value="root"></property>

        <property name="password" value=""></property>

    </bean>

    <!-- 配置DBCP连接池 -->

    <bean id="dataSource1" class="org.apache.commons.dbcp.BasicDataSource">

        <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>

        <property name="url" value="jdbc:mysql:///spring3_day02"></property>

        <property name="username" value="root"></property>

        <property name="password" value=""></property>

    </bean>

    <!-- 定义jdbctemplate -->

    <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">

          <property name="dataSource" ref="dataSource1"></property><!-- 把上面定义好的连接池注入进来了 -->

    </bean>

</beans>