spring获取数据库连接对象

12020171030

12020171030
1、导入数据库相关jar包：spring-jdbc-4.3.6.RELEASE.jar、spring-tx-4.3.6.RELEASE.jar

2、在src下创建资源文件db.properties

3、配置beans.xml文件

4、测试文件，获取数据连接对象
   
   ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml");
   //获取数据源
   DataSource ds = (DataSource) ctx.getBean("simple_ds");
   //获取数据连接对象
   Connection conn = ds.getConnection();


     
     
     
     
     
     
     
#Let's talk about this file in src catalog
#MySQL
jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/book?useUnicode=true&characterEncoding=utf8&useSSL=true
jdbc.username=root
jdbc.password=123456

#oracle
#jdbc.driverClassName=oracle.jdbc.driver.OracleDriver
#jdbc.url=jdbc:oracle:thin:@localhost:1521:ORCL
#jdbc.username=root
#jdbc.password=root