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Question: connection pooling concept through weblogic 8.1
Answer: Hi,
I tried using connection pooling concept through weblogic 8.1 .
import java.sql.*;
import javax.naming.*;
import javax.sql.DataSource;
public class ConnectionpoolDemo {
public static void main(String[] args) {
try {
InitialContext ic=new InitialContext();
Object obj=ic.lookup("MyDsJNDI");
DataSource ds=(DataSource)obj;
Connection con=ds.getConnection();
Statement st=con.createStatement();
ResultSet rs=st.executeQuery("select empno,ename from emp");
while(rs.next()){
System.out.print(rs.getString(1)+"t");
System.out.println(rs.getString(2));
}
} catch (NamingException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
Output:
javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
at javax.naming.spi.NamingManager.getInitialContext(Unknown Source)
at javax.naming.InitialContext.getDefaultInitCtx(Unknown Source)
at javax.naming.InitialContext.getURLOrDefaultInitCtx(Unknown Source)
at javax.naming.InitialContext.lookup(Unknown Source)
at ConnectionpoolDemo.main(ConnectionpoolDemo.java:8)
EXCEPTION OCCURRED AT LINE
Object obj=ic.lookup("MyDsJNDI"); |
| April 04, 2008 05:42:22 |
#1 |
| cvshankar |
J2EE Expert Member Since: December 2007 Total Comments: 1 |
RE: connection pooling concept through weblogic 8.1
|
| The constant indicating the type for a ResultSet object that is scrollable and generally sensitive to changes made by others |
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