SQl Exception while connecting to Oracle Databse : Network adaptar .......

hi !
I am geeting an SQL Exception ...
Network apdator could not establish connection..
the code is as follows
String driverName = "oracle.jdbc.driver.OracleDriver";
String dbURL = "jdbc:oracle:thin:@server:1521:biz";
String uName = "uidt";
String pwd = "pwd";
Class.forName(driverName);
conn = DriverManager.getConnection(dbURL, uName, pwd);
Please help me out !!

First aid check list for "connection refused":
- Check host name in connect string.
- Check port number in connect string.
- Try numeric IP address of server host in connect string, in case name server is hosed.
- Are there any firewalls between client and server blocking the port.
- Check that the db server is running.
- Check that the db server is listening to the port. On the server, try: "telnet localhost the-port-number". Or "netstat -an", there should be a listening entry for the port.
- Try "telnet serverhost the-port-number" from the client, to see if firewalls are blocking it.
- If "telnet" fails: try it with the numeric ip address.
- If "telnet" fails: does it fail immediately or after an obvious timeout? How long is the timeout?
- Does the server respond to "ping serverhost" or "telnet serverhost" or "ssh serverhost"?

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Sql exception when connecting to oracle database

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pcpitcher1

Please read this
http://forum.java.sun.com/thread.jspa?threadID=512566&start=0&tstart=0

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hi,
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I wrote a JAVA program to test the connection with
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Exception in thread "main" java.sql.SQLException: Io exception: The Network Adap
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hi all
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ORCL2
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884559 wrote:
Have you fixed this issue?
i m having same problem,i tried so mamy things but i was not able to fix it,
so i uninstalled oracle and reinstalled it so it startd working fine,
but agin after 10-15 days this problem started.
from sqlplus i m able to connect but not using any other 3rd party IDE.
i have also installed one instant client.
Thanksno dear yet it's not fixed
i have focused my mind on my work instead of R & D
which is unexpected .. that ..no body is here for help...
thanks

SQl Exception while connecting to Oracle Databse : Network adaptar .......

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