1.首先宣告一個連線池物件

private static DruidDateSource druidDateSource;

2.在獲得位元組流之後，在獲取連線池的值

通過DruidDateSourceFactory.createDateSource方法獲得

此方法接收的為一個properties集合，所以將之前的properties傳入即可

DruidDateSourceFactory.createDateSource(properties);

3.將連線池物件賦值

由於連線池物件與此方法的返回值並不相同，所以需要進行強轉型別

druidDateSource = (DruidDateSource)DruidDateSourceFactory.createDateSource(properties);

4.獲取連線

druidDateSource.getconnection()

public class Dbutils {
    private static DruidDataSource druidDataSource;
    static {
        Properties properties = new Properties();
        InputStream inputStream = Dbutils.class.getResourceAsStream("/datebase.properties");
        try {
            properties.load(inputStream);
            
 
try {
                druidDataSource = (DruidDataSource) DruidDataSourceFactory.createDataSource(properties);
            } catch (Exception e) {
                e.printStackTrace();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static Connection getConnection()
    {
        
 
try {
            return druidDataSource.getConnection();
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return null;
    }


}