Populating tree node data from database

I have to populate a tree node with data in the database.Its like this..I have to show emp table in the form of a tree. Under Empno, I have to get the data from the table and populate it.like wise all the columns should be retrieved. This is wat i need..
-EMP
-Empno
7369
7500
5432
+Ename
+Job

Gail just announced in our blog (http://blogs.sun.com/roller/page/divas?entry=june_tutorial_update) that she is working on this tutorial. If you would like to be an early reviewer, send email to [email protected] with "Database Tree Tutorial Early Reviewer" in the subject.
Diva #2

Similar Messages

Want JTree e.g. of populating data from database.

I want ur JTree example of populating data from database, can u plz give me that eg.?
Awaiting 4 ur reply.

Hi,
AFAIK, there is no direct approach to populate a JTree directly from a resultset. However, JTree can use a DOM tree as its model by using the adapter pattern. The procedure to do this is well-documented in the SUN website and the link is provided below. The code to convert a resultset to XML is provided below:
protected void resultSetToXML(OutputStream out,
ResultSet rs,
String stylesheet)
throws IOException, ServletException {
// Create reader and source objects
SqlXMLReader sxreader = new SqlXMLReader();
SqlInputSource sis = new SqlInputSource(rs);
// Create SAX source and StreamResult for transform
SAXSource source = new SAXSource(sxreader, sis);
StreamResult result = new StreamResult(out);
// Perform XSLT transform to get results. If "stylesheet"
// is NULL, then use identity transform. Otherwise, parse
// stylesheet and build transformer for it.
try {
// Create XSLT transformer
TransformerFactory tf = TransformerFactory.newInstance();
Transformer t;
if (stylesheet == null) {
t = tf.newTransformer();
} else {
// Read XSL stylesheet from app archive and wrap it as
// a StreamSource. Then use it to construct a transformer.
InputStream xslstream = _config.getServletContext().
getResourceAsStream(stylesheet);
StreamSource xslsource = new StreamSource(xslstream);
t = tf.newTransformer(xslsource);
// Do transform
t.transform(source, result);
} catch (TransformerException tx) {
throw new ServletException(tx);
The classes SQLXMLReader and other classes used in this example are available in the following java packages.
import java.sql.*;
import javax.sql.DataSource;
import javax.xml.parsers.*;
import javax.xml.transform.*;
import javax.xml.transform.sax.*;
import javax.xml.transform.stream.*;
import org.w3c.dom.*;
import org.xml.sax.*;
import org.xml.sax.helpers.AttributesImpl;
The following is the link that explains how to load a JTree from DOM.
http://java.sun.com/j2ee/1.4/docs/tutorial/doc/JAXPDOM6.html
Cheers,
vidyut

Problem in populating jtable data from database

hi,
i am using JTable to retrieve data from database and show it in table. JTable
is working fine with static data. but while retrieving from databse its giving a NullPointerException at getColumnClass() method. Below is complete source code. plzz help.
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import java.sql.*;
import javax.swing.table.*;
/*jdbc connection class*/
class connect
Connection con;
Statement stat;
public connect()throws Exception
Class.forName("org.postgresql.Driver");
con=DriverManager.getConnection("jdbc:postgresql://localhost/dl","dl","dl");
stat=con.createStatement();
public ResultSet rsf(String rsstr)throws Exception
ResultSet rs=stat.executeQuery(rsstr);
return rs;
public void upf(String upstr)throws Exception
stat.executeUpdate(upstr);
class MyTableModel extends AbstractTableModel
private String[] columnNames = {"name","id","dep","cat","rem","chkout"};
Object[][] data;
public MyTableModel()
try{
connect conn=new connect();
ResultSet rs3=conn.rsf("select * from usertab");
ResultSetMetaData rsmd=rs3.getMetaData();
int col=rsmd.getColumnCount();
int cou=0;while(rs3.next()){cou++;}
data=new Object[cou][col];
System.out.println(cou+" "+col);
ResultSet rs2=conn.rsf("select * from usertab");
int i=0;int j=0;
for(i=0;i<cou;i++)
rs2.next();
for(j=0;j<col;j++)
data[i][j]=rs2.getString(getColumnName(j));
System.out.println(data[0][2]);
}catch(Exception e){System.out.println("DFD "+e);}
 public int getColumnCount() {
 return columnNames.length;
 public int getRowCount() {
 return data.length;
 public String getColumnName(int col) {
 return columnNames[col];
 public Object getValueAt(int row, int col) {
 return data[row][col];
 public Class getColumnClass(int c) {
 return getValueAt(0, c).getClass();
 public boolean isCellEditable(int row, int col) {
 if (col < 2) {
 return false;
 } else {
 return true;
 public void setValueAt(Object value, int row, int col) {
 data[row][col] = value;
 fireTableCellUpdated(row, col);
class MyFrame extends JFrame
public MyFrame()
 setSize(600,500);
 JPanel p1=new JPanel();
 p1.setBackground(new Color(198,232,189));
 JTable table = new JTable(new MyTableModel());
 table.setPreferredScrollableViewportSize(new Dimension(500,200));
 table.setBackground(new Color(198,232,189));
 JScrollPane scrollPane = new JScrollPane(table);
 scrollPane.setBackground(new Color(198,232,189));
 p1.add(scrollPane);
 getContentPane().add(p1);
/*Main Class*/
class test2
 public static void main(String args[])
 MyFrame fr =new MyFrame();
 fr.setVisible(true);
}thanx

hi nickelb,
i had returned Object.class in the getColumnClass() method. But then i
got NullPointerException at getRowCount() method. i could understand that the
main problem is in data[][] object. In all the methods its returning null values as it is so declared outside the construtor. But if i declare the object inside the constructor, then the methods could not recognize the object. it seems i cant do the either ways. hope u understood the problem.
thanx

Swing Applet in JSP: problem with fetching data from database

i am facing a problem while fetching data from database using Swing Applet plugged in a JSP page.
// necessary import statements
public class NewJApplet extends javax.swing.JApplet {
private JLabel jlblNewTitle;
private Vector vec;
public static void main(String[] args) {
JFrame frame = new JFrame();
NewJApplet inst = new NewJApplet();
frame.getContentPane().add(inst);
((JComponent)frame.getContentPane()).setPreferredSize(inst.getSize());
frame.pack();
frame.setVisible(true);
public NewJApplet() {
super();
initGUI();
private void initGUI() {
try {
this.setSize(542, 701);
this.getContentPane().setLayout(null);
jlblTitle = new JLabel();
this.getContentPane().add(jlblTitle);
jlblTitle.setText("TITLE");
jlblTitle.setBounds(197, 16, 117, 30);
jlblTitle.setFont(new java.awt.Font("Dialog",1,20));
jlblNewTitle = new JLabel();
this.getContentPane().add(jlblNewTitle);
Vector vecTemp = getDBDatum(); // data fetched fm DB r stored here.
jlblNewTitle.setText(vecTemp.get(1).toString());
jlblNewTitle.setBounds(350, 16, 117, 30);
jlblNewTitle.setFont(new java.awt.Font("Dialog",1,20));
} catch (Exception e) {
e.printStackTrace();
}//end of initGUI()
private Vector getDBDatum() {
// fetches datum from oracle database and stores it in a vector
return lvecData;
}//end of getDBDatum()
}//end of class
in index.jsp page i have included the following code for calling this applet:
<jsp:plugin type="applet" code="NewJApplet.class" codebase="applets"
width="600" height="300">
<jsp:fallback>Could not load applet...</jsp:fallback>
</jsp:plugin>
if i view it in using AppletViewer it runs perfectly and display the data in JLabel. (ie, both jlblTitle and jlblNewTitle).(ie, DATA FETCHES FROM db AND DISPLAYS PROPERLY)
BUT IF I CLICK ON INDEX.JSP, ONLY jlblTitle APPEARS. jlblnNewTitle WILL BE BLANK(this label name is supposed to fetch from database)
EVERY THING IS DISPAYING PROPERLY EXCEPT DATA FROM DATABASE!!!
i signed the applet as follows :
grant {
permission java.security.AllPermission;
Can any body help me to figure out the problem?

This is the Swing Applet java code
import java.awt.Dimension;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Vector;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.JScrollPane;
import javax.swing.JApplet;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTree;
import javax.swing.ScrollPaneConstants;
import javax.swing.SwingConstants;
public class HaiApplet extends javax.swing.JApplet {
 private JLabel jlblTitle;
 private JLabel jlblNewTitle;
 private Vector vec;
 * main method to display this
 * JApplet inside a new JFrame.
 public static void main(String[] args) {
 JFrame frame = new JFrame();
 NewJApplet inst = new NewJApplet();
 frame.getContentPane().add(inst);
 ((JComponent)frame.getContentPane()).setPreferredSize(inst.getSize());
 frame.pack();
 frame.setVisible(true);
 public HaiApplet() {
 super();
 initGUI();
 private void initGUI() {
 try {
 this.setSize(542, 701);
 this.getContentPane().setLayout(null);
 jlblTitle = new JLabel();
 this.getContentPane().add(jlblTitle);
 jlblTitle.setText("OMMS");
 jlblTitle.setBounds(197, 16, 117, 30);
 jlblTitle.setFont(new java.awt.Font("Dialog",1,20));
 jlblTitle.setHorizontalAlignment(SwingConstants.CENTER);
 jlblTitle.setForeground(new java.awt.Color(0,128,192));
 jlblNewTitle = new JLabel();
 this.getContentPane().add(jlblNewTitle);
 Vector vecTemp = getDBDatum();
 jlblNewTitle.setText(vecTemp.get(1).toString());
 jlblNewTitle.setBounds(350, 16, 117, 30);
 jlblNewTitle.setFont(new java.awt.Font("Dialog",1,20));
 } catch (Exception e) {
 e.printStackTrace();
 }//end of initGUI()
 private Vector getDBDatum() {
 Vector lvecData = new Vector(10,5);
 Connection lcon = null;
 Statement lstmt = null;
 ResultSet lrsResults = null;
 String lstrSQL = null;
 String lstrOut = null;
 try {
 OmmsDBConnect db = new OmmsDBConnect();
 lcon = db.connectDb();
 lstmt = lcon.createStatement(lrsResults.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_READ_ONLY);
 lstrSQL = "select DT_ID from P_DATATABLES";
 lrsResults = lstmt.executeQuery(lstrSQL);
 int i = 0;
 lrsResults.last();
 int length = lrsResults.getRow();
 System.out.println(length);
 lrsResults.beforeFirst();
 int recCount = 0;
 while (lrsResults.next()) {
 recCount++;
 lvecData.addElement(new String(lrsResults.getString("DT_ID")));
 // System.out.println("ID : " + lrsResults.getString(1));
 i++;
 }System.out.println("here 3 out fm while");
 catch(SQLException e) {
 System.out.print("SQLException: ");
 System.out.println(e.getMessage());
 catch(Exception ex) {
 lstrOut = "Exception Occured " + ex.getMessage();
 finally {
 try {
 lrsResults.close();
 lstmt.close();
 lcon.close();
 System.out.println("[DONE]");
 catch(Exception e) {
 System.out.println(e);
 }//end of finally
 return lvecData;
 }//end of getDBDatum()
}//end of classOfcourse the above code compiles and runs well. in Applet Viewer
I plugged the above Swing Applet in a JSP page index.jsp
<jsp:plugin type="applet" code="NewJApplet.class" codebase="applets"
 width="600" height="300">
 <jsp:fallback>Could not load applet...</jsp:fallback>
</jsp:plugin>Every thing is working fine in AppletViewer...But if i view this in any browser, then only the jlblTitle is displaying. jlblNewTitle is not displaying(this label name is actually fetching from thedatabase)
can any body help me regarding this matter.? Thx in Advance.

How do i add data from database to JTable ! Urgent

How do i add data from database to the columns of JTable?.

hi,
Thanks for ur link. but this is just a part of my application which i am developing user interface in swing package for which i want to know how to show data to user in the table format where by table input data will be from the database. say something like todays activity is shown to the user in table format... So u have any idea of how to do this...

[webdynpro] How to get the data from database and store in Excel sheet

Hi All-
I am developing an application in Webdynpro and I need to provide a URL ( link ) which if clicked , need to collect the data from Database ( SQL Server ) and puts in an Excel Sheet corresponding fields and opens the sheet.....
Please look into this issue and help me out......
Regards,
Cris

Hi Cris,
Add-on to wat santosh has pointed to:
Exporting table data to MS-Excel Sheet(enhanced Web Dynpro Binary Cache)
(Or) If you have implemented your logic to get Database records below Blog should guide you in opening an excel with ur records.
Exporting table data to MS-Excel Sheet(enhanced Web Dynpro Binary Cache)
Regards,
N.

Oracle form: how to retrieve data from database to pop list

I have problem in retrieving data from database to item list in
oracle forms.
Can anyone help me.
thanks.

The next is an example but you can find this information in
Forms Help:
DECLARE
     G_DESCS RECORDGROUP;
     ERRCODE NUMBER;
     rg_id RECORDGROUP;
     rg_name VARCHAR2(40) := 'Descripciones';
BEGIN
     rg_id := FIND_GROUP(rg_name);
     IF Id_Null(rg_id) THEN
     G_DESCS := Create_Group_From_Query (rg_name, 'SELECT
DESCRIPCION DESCRIPCION, DESCRIPCION DESC2 FROM FORMAS_PAGO);
     ERRCODE := POPULATE_GROUP(G_DESCS);
     POPULATE_LIST('FORMAS_PAGO.CMBDESCRIPCION',G_DESCS);
     END IF;
END;
Saludos.
Mauricio.

Issue to load data from database to XML file. error: ODI-40768

Hi,
While I am trying to load data from database to XML following error is appearing.
ODI-1228: Task TEST_XML_DATA (Integration) fails on the target XML connection MyLOCALXSD.
Caused By: java.sql.SQLException: ODI-40768: Could not save the file <default>:C:\DATA_FILE\www.xml because a class java.io.IOException occurred and said: The filename, directory name, or volume label syntax is incorrect
 at com.sunopsis.jdbc.driver.xml.SnpsXmlFile.writeToFile(SnpsXmlFile.java:751)
 at com.sunopsis.jdbc.driver.xml.SnpsXmlConnection.internalExecute(SnpsXmlConnection.java:769)
 at com.sunopsis.jdbc.driver.xml.SnpsXmlPreparedStatement.execute(SnpsXmlPreparedStatement.java:46)
 at oracle.odi.runtime.agent.execution.sql.SQLCommand.execute(SQLCommand.java:166)
 at oracle.odi.runtime.agent.execution.sql.SQLExecutor.execute(SQLExecutor.java:102)
 at oracle.odi.runtime.agent.execution.sql.SQLExecutor.execute(SQLExecutor.java:1)
 at oracle.odi.runtime.agent.execution.TaskExecutionHandler.handleTask(TaskExecutionHandler.java:50)
 at com.sunopsis.dwg.dbobj.SnpSessTaskSql.processTask(SnpSessTaskSql.java:2906)
 at com.sunopsis.dwg.dbobj.SnpSessTaskSql.treatTask(SnpSessTaskSql.java:2609)
 at com.sunopsis.dwg.dbobj.SnpSessStep.treatAttachedTasks(SnpSessStep.java:540)
 at com.sunopsis.dwg.dbobj.SnpSessStep.treatSessStep(SnpSessStep.java:453)
 at com.sunopsis.dwg.dbobj.SnpSession.treatSession(SnpSession.java:1740)
 at oracle.odi.runtime.agent.processor.impl.StartSessRequestProcessor$2.doAction(StartSessRequestProcessor.java:338)
 at oracle.odi.core.persistence.dwgobject.DwgObjectTemplate.execute(DwgObjectTemplate.java:214)
 at oracle.odi.runtime.agent.processor.impl.StartSessRequestProcessor.doProcessStartSessTask(StartSessRequestProcessor.java:272)
 at oracle.odi.runtime.agent.processor.impl.StartSessRequestProcessor.access$0(StartSessRequestProcessor.java:263)
 at oracle.odi.runtime.agent.processor.impl.StartSessRequestProcessor$StartSessTask.doExecute(StartSessRequestProcessor.java:822)
 at oracle.odi.runtime.agent.processor.task.AgentTask.execute(AgentTask.java:123)
 at oracle.odi.runtime.agent.support.DefaultAgentTaskExecutor$2.run(DefaultAgentTaskExecutor.java:83)
 at java.lang.Thread.run(Thread.java:662)
jdbc url: jdbc:snps:xml?d=C:\test_xsd.xsd&s=TESTSQL&re=employeesX&ro=true
physical schema: TESTSQL
Knowledge modules are:
LKM: LKM SQL to SQL
IKM: IKM XML Control Append
CKM: CKM SQL
Parameters set are:
CREATE_XML_FILE: true
XML_PATH:<default>:C:\DATA_FILE\www.xml
I have tried to change the directory path but error is still there.
Could some one please help me to resolve the issue?
Regards,
user1672911

Hi,
The trouble in "<default>:" - if you set XML_PATH as C:\DATA_FILE\www.xml instead <default>:C:\DATA_FILE\www.xml- it will work correctly.
Greetings,
Eugene

TRANSFER OF DATA FROM DATABASE TO APPLICATION SERVER

I have to upload /transfer data from database to application server .
I am not able to get it.
If anyone have any solution to it,
post it to me.
thanks

*& Report <name>
REPORT name.
DATA:
BEGIN OF FS_SPFLI,
CARRID TYPE SPFLI-CARRID,
CONNID TYPE SPFLI-CONNID,
COUNTRYFR TYPE SPFLI-COUNTRYFR,
CITYFROM TYPE SPFLI-CITYFROM,
AIRPFROM TYPE SPFLI-AIRPFROM,
COUNTRYTO TYPE SPFLI-COUNTRYTO,
CITYTO TYPE SPFLI-CITYTO,
AIRPTO TYPE SPFLI-AIRPTO,
FLTIME TYPE SPFLI-FLTIME,
DEPTIME TYPE SPFLI-DEPTIME,
ARRTIME TYPE SPFLI-ARRTIME,
DISTANCE TYPE SPFLI-DISTANCE,
DISTID TYPE SPFLI-DISTID,
FLTYPE TYPE SPFLI-FLTYPE,
PERIOD TYPE SPFLI-PERIOD,
END OF FS_SPFLI.
DATA:
T_SPFLI LIKE
STANDARD TABLE
OF FS_SPFLI.
DATA:
BEGIN OF FS_TABLE,
CHAR(100) TYPE C,
END OF FS_TABLE.
DATA:
T_TABLE LIKE
STANDARD TABLE
OF FS_TABLE.
DATA:
BEGIN OF FS_TABLE1,
CHAR(100) TYPE C,
END OF FS_TABLE1.
DATA:
T_TABLE1 LIKE
STANDARD TABLE
OF FS_TABLE1.
SELECT CARRID
CONNID
COUNTRYFR
CITYFROM
AIRPFROM
COUNTRYTO
CITYTO
AIRPTO
FLTIME
DEPTIME
ARRTIME
DISTANCE
DISTID
FLTYPE
PERIOD
FROM SPFLI
INTO TABLE T_SPFLI.
CALL FUNCTION 'GUI_DOWNLOAD'
EXPORTING
BIN_FILESIZE =
FILENAME = 'd:\files\p_spfli04'
FILETYPE = 'ASC'
APPEND = ' '
WRITE_FIELD_SEPARATOR = ' '
HEADER = '00'
TRUNC_TRAILING_BLANKS = ' '
WRITE_LF = 'X'
COL_SELECT = ' '
COL_SELECT_MASK = ' '
DAT_MODE = ' '
CONFIRM_OVERWRITE = ' '
NO_AUTH_CHECK = ' '
CODEPAGE = ' '
IGNORE_CERR = ABAP_TRUE
REPLACEMENT = '#'
WRITE_BOM = ' '
TRUNC_TRAILING_BLANKS_EOL = 'X'
WK1_N_FORMAT = ' '
WK1_N_SIZE = ' '
WK1_T_FORMAT = ' '
WK1_T_SIZE = ' '
IMPORTING
FILELENGTH =
TABLES
DATA_TAB = T_SPFLI
FIELDNAMES =
EXCEPTIONS
FILE_WRITE_ERROR = 1
NO_BATCH = 2
GUI_REFUSE_FILETRANSFER = 3
INVALID_TYPE = 4
NO_AUTHORITY = 5
UNKNOWN_ERROR = 6
HEADER_NOT_ALLOWED = 7
SEPARATOR_NOT_ALLOWED = 8
FILESIZE_NOT_ALLOWED = 9
HEADER_TOO_LONG = 10
DP_ERROR_CREATE = 11
DP_ERROR_SEND = 12
DP_ERROR_WRITE = 13
UNKNOWN_DP_ERROR = 14
ACCESS_DENIED = 15
DP_OUT_OF_MEMORY = 16
DISK_FULL = 17
DP_TIMEOUT = 18
FILE_NOT_FOUND = 19
DATAPROVIDER_EXCEPTION = 20
CONTROL_FLUSH_ERROR = 21
OTHERS = 22
IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
CALL FUNCTION 'GUI_UPLOAD'
EXPORTING
FILENAME = 'd:\files\p_spfli04'
FILETYPE = 'ASC'
HAS_FIELD_SEPARATOR = ' '
HEADER_LENGTH = 0
READ_BY_LINE = 'X'
DAT_MODE = ' '
CODEPAGE = ' '
IGNORE_CERR = ABAP_TRUE
REPLACEMENT = '#'
CHECK_BOM = ' '
VIRUS_SCAN_PROFILE =
IMPORTING
FILELENGTH =
HEADER =
TABLES
DATA_TAB = T_TABLE
EXCEPTIONS
FILE_OPEN_ERROR = 1
FILE_READ_ERROR = 2
NO_BATCH = 3
GUI_REFUSE_FILETRANSFER = 4
INVALID_TYPE = 5
NO_AUTHORITY = 6
UNKNOWN_ERROR = 7
BAD_DATA_FORMAT = 8
HEADER_NOT_ALLOWED = 9
SEPARATOR_NOT_ALLOWED = 10
HEADER_TOO_LONG = 11
UNKNOWN_DP_ERROR = 12
ACCESS_DENIED = 13
DP_OUT_OF_MEMORY = 14
DISK_FULL = 15
DP_TIMEOUT = 16
OTHERS = 17
IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
*LOOP AT T_TABLE INTO FS_TABLE.
WRITE:
/ FS_TABLE-CHAR.
*ENDLOOP.
OPEN DATASET 'p_spfli04' FOR INPUT IN TEXT MODE ENCODING DEFAULT.
IF SY-SUBRC EQ 0.
MESSAGE 'File Already Exists' TYPE 'I'.
STOP.
ELSE.
CLOSE DATASET 'p_spfli04'.
ENDIF.
OPEN DATASET 'P_SPFLI02' FOR OUTPUT IN TEXT MODE ENCODING DEFAULT.
LOOP AT T_TABLE INTO FS_TABLE.
TRANSFER FS_TABLE TO 'p_spfli04'.
ENDLOOP.
CLOSE DATASET 'p_spfli04'.
*ENDIF.
OPEN DATASET 'p_spfli04' FOR INPUT IN TEXT MODE ENCODING DEFAULT.
LOOP AT T_TABLE INTO FS_TABLE.
READ DATASET 'p_spfli04' INTO FS_TABLE.
APPEND FS_TABLE-CHAR TO T_TABLE1.
ENDLOOP.
Here is the sample code to download and upload the file onto presentation server and then using OPEN DATASET you'll be able to transfer the data to APPLICATION SERVER....
Regards,
Pavan P.

How to download Data from Database directly into excel

I have a requirement to download very large quantity of data from database into Excel file.
But condition is excel file should have only 65,536 rows in a single spread sheet(that's the limit i suppose),if i have more data points(rows) than it should be stored into different spreadsheet.......this continues so there can be many spread sheets in a single excel file.
Data size can be 1 GB or more.
Also specific naming conventions need to be followed for giving name to excel as well as different spread sheets in it.
Please see if someone could help me out.

Thanks for ur reply,
But my requirement is to call "download to excel" method,in a java program on click by user for downloading an excel sheet on his machine.
This is be done as part of a web application which is to be made (so can't open the excel first)

Problem in printing the data from database when i print inside servlet

hi to all!
the objective of the code below is getting the data from database table and has to send that data to the web browser using out.println .note: out - PrintWriter object
In a getQuestion method, i am getting the data from database table and store it in String q and when i print the q within this method it is getting printed, but i got the null value when i printed the String q inside service method doPost. why..? its puzzling me.
package servlet;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;
public class test extends HttpServlet {
 Connection con;
 ResultSet rs;
 Statement s;
 StringBuffer q;
 StringBuffer o1;
 StringBuffer o2;
 StringBuffer o3;
 public void getQuestion() throws Exception
 if(rs.next())
 q=new StringBuffer(rs.getString("question"));
 o1=new StringBuffer(rs.getString("option1"));
 o2=new StringBuffer(rs.getString("option2"));
 o3=new StringBuffer(rs.getString("option3"));
 System.out.println(q);
 System.out.println(o1);
 System.out.println(o2);
 System.out.println(o3);
 public void connect(){
 try
 Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
 con=DriverManager.getConnection("jdbc:odbc:ds","sa","server");
 s=con.createStatement();
 rs=s.executeQuery("select * from qa order by newid()");
 getQuestion();
 catch(Exception e)
 System.out.println("erroe");
 public void doPost(HttpServletRequest request,HttpServletResponse response)
 throws IOException,ServletException
 response.setContentType("text/html");
 new test().connect();
 PrintWriter out=response.getWriter();
 request.setAttribute("question", q);
 request.setAttribute("option1", o1);
 request.setAttribute("option2", o2);
 request.setAttribute("option3", o3);
 //RequestDispatcher rd=getServletContext().getRequestDispatcher("/show.jsp");
 //rd.forward(request, response);
 out.println("<html>");
out.println("<head>");
 out.println("<title>" + "shock!!!" + "</title>");
out.println("</head>");
out.println("<body>");
out.println("<h2>"+"Read twice before u answer"+"<h2>");
out.println("");
//why the value of q is not getting printed, instead i get null
out.println("<h2>"+ q +"<h2>");
out.println("how is it");
out.println("</body>");
out.println("</html>");
Edited by: Mahesh_yeswecan on Nov 29, 2008 10:42 AM

As u said , i have done a silly mistake earlier. though i have corrected the code still i am getting the same null value
package servlet;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;
public class test extends HttpServlet {
 Connection con;
 ResultSet rs;
 Statement s;
 StringBuffer q;
 StringBuffer o1;
 StringBuffer o2;
 StringBuffer o3;
 public void getQuestion() throws Exception
 if(rs.next())
 q=new StringBuffer(rs.getString("question"));
 o1=new StringBuffer(rs.getString("option1"));
 o2=new StringBuffer(rs.getString("option2"));
 o3=new StringBuffer(rs.getString("option3"));
 System.out.println(q);
 System.out.println(o1);
 System.out.println(o2);
 System.out.println(o3);
 public void connect(){
 try
 Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
 con=DriverManager.getConnection("jdbc:odbc:ds","sa","server");
 s=con.createStatement();
 rs=s.executeQuery("select * from qa order by newid()");
 getQuestion();
 catch(Exception e)
 System.out.println("erroe");
 public void doPost(HttpServletRequest request,HttpServletResponse response)
 throws IOException,ServletException
 response.setContentType("text/html");
 connect();
 PrintWriter out=response.getWriter();
 request.setAttribute("question", q);
 request.setAttribute("option1", o1);
 request.setAttribute("option2", o2);
 request.setAttribute("option3", o3);
 //RequestDispatcher rd=getServletContext().getRequestDispatcher("/show.jsp");
 //rd.forward(request, response);
 out.println("<html>");
 out.println("<head>");
 out.println("<title>" + "shock!!!" + "</title>");
 out.println("</head>");
 out.println("<body>");
 out.println("<h2>"+"Read twice before u answer"+"<h2>");
 out.println("");
 //why the value of q is not getting printed, instead i get null
 out.println("<h2>"+ q +"<h2>");
 out.println("how is it");
 out.println("</body>");
 out.println("</html>");
}

Display tree node data in bold characters

Hi,
I have a requirement where I need to display tree nodes data in bold characters. If I click on a particular tree node, next time it should appear in normal font only which means that some task had done using that tree node. Is my question clear??
Plz help me....
thanks,
ravindra.

Hi Ravindra,
I think it is possible, i have not done it but let me explain how we can do it.
In <htmlb:treeNode> tag there is an attribute 'text' in
which we specify title of that treeNode.
Now you define a page attribute 'treeNodeTitle' type
edpline and in onCreate assign it value <html>MyTreeNode</html>
When you click on this node then you do event handling
in onInputProcessing, there assign only 'MyTreeNode' to
treeNodeTitle.
sample code may look like this...
<htmlb:treeNode
id = 'treeNode1'
text = '<%=treeNodeTitle %>' >
</htmlb:treeNode>
Page Attribute
treeNodeTitle type edpline
in onCreate
treeNodeTitle = '<html>MyTreeNode</html>'
in onInputProcessing
in event-handling code for that treeNode write
treeNodeTitle = 'MyTreeNode'
I hope this will work.
Regards,
Narinder Hartala

Urgent help with simple BPEL process for reading data from database

Hello there,
I need help with BPEL project.
i have created a table Employee in Database.
I did create application, BPEL project and connection to the database properly using Database Adapter.
I need to read the records from the database and convert into xml fomat and it should to go approval for BPM worklist.
Can someone please describe me step by step what i need to do.
Thx,
Dps

I have created a table in Database with data like Empno,name,salary,comments.
I created Database Connection in jsp page and connecting to BPEL process.
It initiates the process and it goes automatically for approval.
Please refer the code once which i created.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<%@page import="java.util.Map" %>
<%@page import="com.oracle.bpel.client.Locator" %>
<%@page import="com.oracle.bpel.client.NormalizedMessage" %>
<%@page import="com.oracle.bpel.client.delivery.IDeliveryService" %>
<%@page import="javax.naming.Context" %>
<%@page import="java.util.Hashtable" %>
<%@page import="java.util.HashMap" %>
<%@ page import="java.sql.*"%>
<%@ page import= "jspprj.DBCon"%>
<html>
<head>
<title>Invoke CreditRatingService</title>
</head>
<body>
<%
DBCon dbcon=new DBCon();
Connection conn=dbcon.createConnection();
Statement st=null;
PreparedStatement pstmt=null;
Hashtable env= new Hashtable();
ResultSet rs = null;
Map payload =null;
try
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.evermind.server.rmi.RMIInitialContextFactory");
env.put(Context.PROVIDER_URL, "opmn:ormi://localhost:port:home/orabpel");//bpel server
env.put("java.naming.security.principal", "username");
env.put("java.naming.security.credentials", "password");//bpel console
Locator locator = new Locator("default","password",env);
IDeliveryService deliveryService =
(IDeliveryService)locator.lookupService(IDeliveryService.SERVICE_NAME );
// construct the normalized message and send to Oracle BPEL Process Manager
NormalizedMessage nm = new NormalizedMessage();
java.util.HashMap map = new HashMap();
st=conn.createStatement();
out.println("connected");
String query1="Select * from EMPLOYEE";
rs=st.executeQuery(query1);
/*reading Data From Database and converting into XML format
so that no need of going to BPEL console and entering the details.
while (rs.next()){
String xml1 = "<AsynchBPELProcess1ProcessRequest xmlns='http://xmlns.oracle.com/AsynchBPELProcess1'>"+
"<Empno>"+rs.getString(1)+"</Empno>"+
"<EmpName>"+rs.getString(2)+"</EmpName>"+
"<Salary>"+rs.getString(3)+"</Salary>"+
"<Comments>"+rs.getString(4)+"</Comments>"+
"</AsynchBPELProcess1ProcessRequest>";
out.println(xml1);
nm.addPart("payload", xml1 );
// EmployeeApprovalProcess is the BPEL process in which human task is implemented
deliveryService.post("EmployeeApprovalProcess", "initiate", nm);
// payload = res.getPayload();
out.println( "BPELProcess CreditRatingService executed! " );
// out.println( "Credit Rating is " + payload.get("payload") );
//Incase there is an exception while invoking the first server invoke the second server i.e lsgpas13.
catch(Exception ee) {
//("BPEL Server lsgpas14 invoking error.\n"+ee.toString());
%>
</body>
</html>
Its working fine.And i want it for Bulk approvals.please help me step by step procedure if any other way to implement this.

How to populate Adobe LiveCycle Designer generated PDF Forms with data from Database in Windows app

Hi
I have a PDF template designed in Adobe LiveCycle Designer. This template has form fields which needs to be filled with data programmatically. I am using windows application in C#.Net 2005 in which I want to retrieve data from database and merge this data into PDF form in respective fields.
How this can be achieved?
I searched a lot & I found that we can process the XDP file generated from PDF to acheive this. I created the XDP file out of the PDF template created in designer. But I don't know how to merge data from database into that XDP file in respective fields and again convert this XDP file back to PDF programmatically. Can anybody help me ? This is urgent.
Thanks in advance.
Sambhaji

Please ignore the above code. The following one is correct one. using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Text; public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { Response.ContentType = "application/vnd.adobe.xdp+xml"; StringBuilder responseString = new StringBuilder(); responseString.Append("<?xml version='1.0' encoding='UTF-8'?>"); responseString.Append("<?xfa generator='AdobeLiveCycleDesigner_V8.0' APIVersion='2.5.6290.0'?>"); responseString.Append("<xdp:xdp xmlns:xdp='http://ns.adobe.com/xdp/'>"); responseString.Append("<xfa:datasets xmlns:xfa='http://www.xfa.org/schema/xfa-data/1.0/'>"); responseString.Append("<xfa:data>"); responseString.Append("<form1>"); responseString.Append("<TextField1>Homer</TextField1>"); responseString.Append("<TextField2>Simpson</TextField2>"); responseString.Append("<field name ='DropDownList1'>"); responseString.Append("<items save='1'>"); responseString.Append("<text>1</text>"); responseString.Append("<text>2</text>"); responseString.Append("<text>3</text>"); responseString.Append("</items>"); responseString.Append("</field>"); responseString.Append("</form1>"); responseString.Append("</xfa:data>"); responseString.Append("</xfa:datasets>"); responseString.Append("<pdf href='C:\\Test.pdf' xmlns='http://ns.adobe.com/xdp/pdf/' />"); responseString.Append("</xdp:xdp>"); Response.Write(responseString); Response.Flush(); Response.End(); } }

Select data from DataBase

Hi;
I try to select data from DataBase, But I get the following error, Could anyone help? thanks.
Exception in thread "main" java.lang.ClassNotFoundException: oracle.jdbc.driver.
OracleDriver
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at Lookup.main(Lookup.java:12)
import java.sql.*;
import java.io.*;
import java.util.*;
public class Lookup {
 public static void main(String[] args)
 throws SQLException, ClassNotFoundException {
 String dbUrl = "jdbc:oracle:thin:@augur.scms.waikato.ac.nz:1521:comp319";
 String user = "group029";
 String password = "group029";
 // Load the driver (registers itself)
 Class.forName("oracle.jdbc.driver.OracleDriver");
 Connection c = DriverManager.getConnection(dbUrl, user, password);
 Statement s = c.createStatement();
 //SQL code:
 ResultSet r =
 s.executeQuery("SELECT * " +"FROM movie");
 StringBuffer results= new StringBuffer();
 ResultSetMetaData metaData = r.getMetaData();
 int numberOfColumns = metaData.getColumnCount();
 for(int i=1; i<=numberOfColumns; i++)
 results.append(metaData.getColumnName(i)+"\t");
 results.append("\n");
 while (r.next()){
 for( int i=1; i <=numberOfColumns; i++)
 results.append(r.getObject(i)+"\t");
 results.append("\n");
 s.close();
}

It's a classpath problem. Either you mistyped the class name, or you don't have the class in your classpath. I think Oracle's drivers come in db12.zip or db12.jar or some such. Whatever that jar or zip file is, it has to be in your classpath, but it's not.
Or it is in your classpath, but you're in an appserver context where the classloader that the container provides for your app uses something other than the classpath variable. For instance, in tomcat, the jar file would be uder webapps/yourApplication/WEB-INF/lib I think.

Populating tree node data from database

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