Spring抽取properties文件

在resources下创建一个properties文件

jdbcdriver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/one
username=root
password=admin123

代码创建数据源

        ResourceBundle resourceBundle = ResourceBundle.getBundle("jdbc");
        String driver = resourceBundle.getString("jdbcdriver");
        String url = resourceBundle.getString("url");
        String username = resourceBundle.getString("username");
        String password = resourceBundle.getString("password");

//        创建c3p0数据源
        ComboPooledDataSource comboPooledDataSource = new ComboPooledDataSource();
        comboPooledDataSource.setDriverClass(driver);
        comboPooledDataSource.setJdbcUrl(url);
        comboPooledDataSource.setUser(username);
        comboPooledDataSource.setPassword(password);

//        打印输出，测试连接效果
        Connection connection = comboPooledDataSource.getConnection();
        System.out.println(connection);
        connection.close();