Oracle 7 Database connection : driver ?

I used classes12.zip for connection to Oracle 8.
But this doesn't work for oracle 7.
Error
java.sql.SQLException: Io exception: The Network Adapter could not establish the connection
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:114)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:156)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:269)
at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:210)
at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:251)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:224)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
Is this a driver problem ?
What is that i need to do for connectioning to Oracle 7 server at remotely.

Error
java.sql.SQLException: Io exception: The Network
Adapter could not establish the connection
Is this a driver problem ?It does not appear like a driver problem.
It could be:
a. A network problem
b. A configuration problem (something to do with TNSNAMES.ORA)
c. An incorrect hostname or port being used in your code (which you have not posted)
d. Something that I am not aware of.
Are you able to connect to the instance using SQL-Plus?
Message was edited by:
aniseed

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>

Database Connection problem (JSP, Oracle & Tomcat 5.5)

I am trying connect to Oracle 8 database through JSP and the webserver is Tomcat5.5. The classes.jar file is in the Tomcat5.5\common\lib directory and the path has also been set to mentioned directory. But I am getting exceptions. The code and the error are given below.
Need help at the earliest.
Thanks in advance.
CODE
Class.forName ("oracle.jdbc.driver.OracleDriver");
Connection con = DriverManager.getConnection("jdbc:oracle:thin:@insrs013:1521:GCR","BILLING_USER", "BILLING_USER");
PreparedStatement pstmt = null;
ResultSet rs = null;
pstmt = con.prepareStatement("INSERT INTO PROJECTIP(PROJECTID, PROJECTSERVERNAME, SERVERIP) VALUES(?,?,?)");
ERROR
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: oracle.jdbc.driver.OracleDriver
     org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:848)
     org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:781)
     org.apache.jsp.test.ServerIPDataSave_jsp._jspService(org.apache.jsp.test.ServerIPDataSave_jsp:137)
     org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause
java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver
     org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1338)
     org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1187)
     org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:127)
     org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:65)
     java.lang.ClassLoader.loadClassInternal(Unknown Source)
     java.lang.Class.forName0(Native Method)
     java.lang.Class.forName(Unknown Source)
     org.apache.jsp.test.ServerIPDataSave_jsp._jspService(org.apache.jsp.test.ServerIPDataSave_jsp:71)
     org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
Hope is only the love of life.

hi,
FIrst make one thing clear. By classes.jar you mean either classes111.jar or classes12.jar.Right?If not,please check tht.
Also,u needn't set any classpaths for Tomcat.
Regards,
Viswanath.

Oracle 7 Database connection : driver ?

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