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JSP - Unsupported Operation Exception

 
Greenhorn
Posts: 9
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hi

I tried to write a code that reads the data from excel sheet and writes into DB2 database.It worked perfectly .But if it has repetition fields, then also it inserts the data.So I used a primary key in the database to avoid repetition.Then I wrote a code which inserts data into database when there is no repetition of data.But if it contains repeatitive data, then it must rollback all the process in database or remove the data that is inserted through the program.I used save point and rollback for this action.
When i run the program it shows "java.lang.UnsupportedOperationException ".Can anyone help me out.
So my code is


<%@ page import="java.sql.*" %>
<%@ page import="java.io.*" %>
<html>
<body>
<%
Connection c;
Connection c1;
Statement stmnt;
Statement stmnt1;
Savepoint svpt1=null ;
int r=0;
try
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
c = DriverManager.getConnection("jdbc dbc:tt","",""); //excel DSN = tt
c1= DriverManager.getConnection("jdbc dbc :db2","",""); //DB2 DSN = db2

stmnt = c.createStatement();
stmnt1 = c1.createStatement();
ResultSet rs = stmnt.executeQuery("SELECT * FROM [Sheet1$]");
try
{
while(rs.next())
{
String a1=rs.getString("percen");
String a2=rs.getString("name");
svpt1 = c1.setSavepoint("first");
r= stmnt1.executeUpdate("INSERT INTO TAB1 VALUES('"+a1+"','"+a2+"');");//insert fields into database DB2
out.println(a1+" "+a2);

}
c1.commit();
response.sendRedirect("index.jsp");

}
catch(Exception e)
{
c1.rollback(svpt1);
}
}
catch(Exception e)
{
out.println(e);
}
%>
</body>
</html>


Manoj



[ October 22, 2008: Message edited by: Potter James ]

[ October 22, 2008: Message edited by: Potter James ]
[ October 22, 2008: Message edited by: Potter James ]
 
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Please take the time to choose the correct forum for your posts. This forum is for questions on JSP.

For more information, please read this.

This post has been moved to a more appropriate forum.
 
Ranch Hand
Posts: 387
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hi Potter,

You are using the JDBC_ODBC bridge, it does not implement very much.
Here's some code:



cheers,
Herman
 
Potter James
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Originally posted by Herman Scheltinga:
hi Potter,

You are using the JDBC_ODBC bridge, it does not implement very much.
Here's some code:



cheers,
Herman




Can you say that where to insert that clearly..
 
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Why are you using the JDBC ODBC bridge to communicate with DB2? COuld you not just use a proper type 4 driver? As is intimated above, the JDBC ODBC bridge is not production quality.
 
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