我正在编写以下代码，用于使用3种方式（OCI、THIN和数据源）在Java和Oracle 10g XE之间进行连接。代码成功运行，但不知道THIN和OCI与数据源连接之间的区别。
1-
public static void main (String args[]) throws SQLException
{
OracleDataSource ods = new OracleDataSource();
ods.setURL("jdbc:oracle:thin:hr/hr@localhost:1521/XE");
Connection con = ods.getConnection();
System.out.println("Connected");
con.close();
}
public static void main(String args[])
{
try
{
// load oracle driver
Class.forName("oracle.jdbc.driver.OracleDriver");
// connect using Thin driver
Connection con = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe","hr","hr");
System.out.println("Connected Successfully To Oracle");
con.close();
}
catch(Exception ex)
{
ex.printStackTrace();
}
}
public static void main(String args[])
{
try
{
// load oracle driver
Class.forName("oracle.jdbc.driver.OracleDriver");
// connect using Native-API (OCI) driver
Connection con = DriverManager.getConnection("jdbc:oracle:oci:@","hr","hr" );
System.out.println("Connected Successfully To Oracle using OCI driver");
con.close();
}
catch(Exception ex)
{
ex.printStackTrace();
}
}