MySQL JDBC 连接池

1.首先声明一个连接池对象

private static DruidDateSource druidDateSource;

2.在获得字节流之后，在获取连接池的值

通过DruidDateSourceFactory.createDateSource方法获得

此方法接收的为一个properties集合，所以将之前的properties传入即可

DruidDateSourceFactory.createDateSource(properties);

3.将连接池对象赋值

由于连接池对象与此方法的返回值并不相同，所以需要进行强转类型

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

4.获取连接

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;
    }


}