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Jdev9.0.3 & Oracle9i(SQLException: Io exception: The Network Adapter could not estab)

 
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Dear professional friend
OS: WIN XP-PRO
IDE: JDeveloper 9.0.3
DBMS: Oracle9i
_______________________
Problem:
_______________________
Having a sample application in Jdev including some Servlets and JSPs, I had no problem to be connected to the Oracle9i, but suddenly it is the second day that I've got the following common exception:
SQLException java.sql.SQLException: Io exception: The Network Adapter could not establish the connection - 17002
When trying the following code:
-DriverManager.registerDriver(new oracle.jdbc.OracleDriver());
-StringUrl="jdbc racle:thin:@localhost:1521 racle9i";
-conn1=DriverManager.getConnection(url,"scott","tiger");
I have done no changes except for installing OC4J9.0.3 stand alone version. After that I got some messages in Jdev, warning about some conflicts in ports and some automatic new port assignments.
Mean while I don't know why when starting the machine for the first time I can log in to the Enterprise Manager, but it can't be done after running the Jdev?(messaging: "ORA-12541 TNS:no listener"), but I can login through SQL+ ?
Any hint and advice will be of great help and be appreciated so much.
Thanks;
Pourang
[ December 21, 2002: Message edited by: Pourang Emami ]
[ December 21, 2002: Message edited by: Pourang Emami ]
 
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