问在java.lang.ArrayIndexOutOfBoundsException中执行查询时线程“主”DB2中的异常

EN

import java.io.IOException;
import java.sql.Connection; 
import java.sql.DriverManager; 
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
public class TestDB22
{
     public static void main(String  rgs[]) throws IOException, ClassNotFoundException, SQLException 
     { 
        Class.forName("COM.ibm.db2os390.sqlj.jdbc.DB2SQLJDriver");
        Connection  con = DriverManager.getConnection("jdbc:db2:rajdb","db2admin","db2admin"); 
        System. out .println( "From TestDB22, connection obtained " );

        Statement st=con.createStatement();
        ResultSet rs = st.executeQuery( "select * from libids" ); 
        while( rs.next())
        {
            System.out.println(rs . getString(2));

        }

     } 
}