Oracle 11g Release 2 of the JDBC connection seems to be different, if you receive the following exception: Listener refused the connection with the following error: ORA-12505, TNS: listener does not currently know of SID given in connect descriptor. Then you must use the following connections:
/************************************************* *********************************
* Created on Nov, 2011 Copyright (c) https://kodehelp.com All Rights Reserved.
************************************************** *********************************/
package com.kodehelp.java.sample;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
/ **
* @ Author https://kodehelp.com
* /
public class ConnectJDBCOracle11g {
/ **
* This class demonstrates the code for connecting Oracle 11g database using JDBC.
* @ Param args
* /
public static void main (String [] args) {
String JDBC_DRIVER = "oracle.jdbc.driver.OracleDriver";
String JDBC_STRING = "jdbc: odbc: thin: @ HOSTNAME: PORTNUMBER / SID"; / / in case of 11g use '/' instead of:
String USER_NAME = "USER_NAME";
String PASSWD = "PASSWORD";
Connection conn = null;
ResultSet rs = null;
Statement stmt = null;
try {
Class.forName (JDBC_DRIVER);
conn = DriverManager.getConnection (JDBC_STRING, USER_NAME, PASSWD);
stmt = conn.createStatement ();
String query = "SELECT * FROM TABLE TBL";
rs = stmt.executeQuery (query);
} Catch (SQLException sqlEx) {
sqlEx.printStackTrace ();
} Catch (ClassNotFoundException e) {
e.printStackTrace ();
} Finally {
try {
if (rs! = null) rs.close ();
if (stmt! = null) stmt.close ();
if (conn! = null) conn.close ();
} Catch (SQLException e) {
e.printStackTrace ();
}
}
}
}