java EE 与mysql Spring 的数据库开发 例题一

JdbcTemplateTest.java

package com.itheima.jdbc;
import org.springframework.context.ApplicationContext;
import
org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.jdbc.core.JdbcTemplate;
public class JdbcTemplateTest {
public static void main(String[] args){
ApplicationContext applicationContext =
new ClassPathXmlApplicationContext("applicationContext.xml");
JdbcTemplate jdTemplate =
(JdbcTemplate) applicationContext.getBean("jdbcTemplate");
jdTemplate.execute("create table account(" +
"id int primary key auto_increment," +
"username varchar(50)," +
"balance double)");
System.out.println("账户表account创建成功!");
}
}

applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<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-4.3.xsd">
<!-- 1配置数据源 -->
<bean id="dataSource" class=
"org.springframework.jdbc.datasource.DriverManagerDataSource">
<!-- 数据库驱动 -->
<property name="driverClassName" value="com.mysql.jdbc.Driver"/>
<!-- 连接数据库的url -->
<property name="url" value="jdbc:mysql://localhost:3306/spring"/>
<!-- 连接数据库的用户名 -->
<property name="username" value="root"/>
<!-- 连接数据库的密码 -->
<property name="password" value="root"/>
</bean>
<!-- 2配置JDBC模板 -->
<bean id="jdbcTemplate"
class="org.springframework.jdbc.core.JdbcTemplate">
<!-- 默认必须使用数据源 -->
<property name="dataSource" ref="dataSource" />
</bean>
</beans>