JavaWeb之连接Mysql

• 数据库配置文件

jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/seckill?characterEncoding=UTF-8
jdbc.user=root
jdbc.password=long

• 使用

private static Properties properties;

    static{

        properties=new Properties();    
        InputStream resourceAsStream = DBUtil.class.getClassLoader()
                .getResourceAsStream("db.properties");
        try {
            properties.load(resourceAsStream);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

properties.getProperty("driver") //取值 括号中是属性名