qu shihong

Thanks.

sorry ,can you tell me the book's name?

you should learn regular expression.

who can recommend me some books about JSTL? Thanks.

In GroupableTableHeaderUI.java:
--------------------------------
private int getHeaderHeight() {
int height = 0;
TableColumnModel columnModel = header.getColumnModel();
for(int column = 0; column < columnModel.getColumnCount(); column++) {
TableColumn aColumn = columnModel.getColumn(column);
TableCellRenderer renderer = aColumn.getHeaderRenderer();
--------------------------------
renderer is null.

Hi Friends ,
how can I set the table header like this:
-------------------
        name
-------------------
firstName|lastName
-------------------
Thanks.
[ March 02, 2003: Message edited by: qu shihong ]
[ March 02, 2003: Message edited by: qu shihong ]

package gctest;
import oracle.jdbc.driver.OracleDriver;
import java.sql.*;
import java.util.Date;
public class Test1 {
public static void main(String[] args) {
try{
Class.forName("oracle.jdbc.driver.OracleDriver");
Connection con = DriverManager.getConnection("jdbc racle:thin:@127.0.0.1:1521:ora", "quxuekuan", "password");
PreparedStatement pstmt = con.prepareStatement("select * from student");
pstmt.executeQuery();
con.close();
}
catch(Exception e){
e.printStackTrace();
}
}
}
---------------------------------------------
java.sql.SQLException: ORA-00600: 内部错误代码，参数: [ttcgcshnd-1], [0], [], [], [], [], [], []

at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:114)
at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:208)
at oracle.jdbc.ttc7.Oall7.receive(Oall7.java:542)
at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1311)
at oracle.jdbc.ttc7.TTC7Protocol.fetch(TTC7Protocol.java:797)
at oracle.jdbc.driver.OracleStatement.doExecuteQuery(OracleStatement.java:1608)
at oracle.jdbc.driver.OracleStatement.doExecute(OracleStatement.java:1758)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1805)
at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:322)
at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:280)
at gctest.Test1.main(Test1.java:13)
-----------------------------------------
line 13 :pstmt.executeQuery();
[ Edited by Dave to remove real-looking IP and user/password ]
[ February 28, 2003: Message edited by: David O'Meara ]

This is realy a hard nut to crack .
In Application Server,if you put all the records into session once,it is a resource hog without fail.But if you do not,you have to connect and disconnect frequently,because the connectionPoll's connection number is finite.So I do it in this way : put all the primary key into session and select the record from database by primary key when require.But I know,this is not the best way yet.
[ February 27, 2003: Message edited by: qu shihong ]