How to display the file contents???

Hi all,
I have a JSP page which is suppose to display resource contents on clicking of href like this:
<td><a href="">Click here</td>But the problem is, these contents are stored some where on the hard disk of the system inside the folder \\LMS\Resources\doc\knowledge.doc.
some other file I have like:
\\LMS\Resources\pdf\display.pdf
It can be any file (PDF,DOC,SOUND AUDIO).
Can anyone please tell me how to open the contents of the file directly from href???
Or I should use some other way to display those files.??I just want a way to start with.......
Thanks in advance
Namrata

Hello Namrata,
There are millions of ways to do this.
1. You can create a shared drive in your server as "\\LMS\Resources" pointing to K Drive etc... You can write a simple servlet which picks up the relative path from "\\LMS\Resources" which is "pdf\display.pdf" and it can read the file and then based on the file extension it can resend the response mime type for the browser to pick it up. This can be done in both Windows and Unix environments.
2. Have a Content Management System like Lotus Domino, Fatwire, etc and upload all contents and point the href to the Content Management System URL.
3. You can upload the documents into a database as BLOB data and then use it to render content.
4. You can also have a regular program which synchronizes the data from \\LMS into the Server hardware in a particular location.
In Options 1, 3, 4 you need the servlet to render the content out to the Client browser.
All this can be done based on the Technology environment, cost available to spend, Skill sets available and other factors.
Do let me know if you need any more information
Thanks,
Pazhanikanthan. P

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Hi,
Check out the link
http://help.sap.com/saphelp_nw70/helpdata/en/2c/840b42202cce6ce10000000a155106/content.htm
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How to view the file content from the directory? getting Error:ORA-21560

SQL> create directory READ_LOB_DIR as 'D:\Prj\Comm\Data';
CREATE OR REPLACE Procedure READ_FILE_LOB IS
-- Input Directory as specified in create directory
l_dir CONSTANT VARCHAR2(30) := 'READ_LOB_DIR';
-- Input File which is read word by word
l_fil CONSTANT VARCHAR2(30) := 'testfile.txt';
-- Separator Character between words is a BLANK (ascii = 32)
l_seb CONSTANT RAW(100) := UTL_RAW.CAST_TO_RAW(CHR(32));
-- Character at the end of the file is NEWLINE (ascii = 10)
l_sen CONSTANT RAW(100) := UTL_RAW.CAST_TO_RAW(CHR(10));
-- Pointer to the BFILE
l_loc BFILE;
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l_pos NUMBER := 1;
-- Amount of characters have been read
l_sum BINARY_INTEGER := 0;
-- Read Buffer
l_buf VARCHAR2(500);
-- End of the current word which will be read
l_end NUMBER;
-- Return value
l_ret BOOLEAN := FALSE;
BEGIN
-- Mapping the physical file with the pointer to the BFILE
l_loc := BFILENAME(l_dir, l_fil);
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IF (l_ret) THEN
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' exists');
-- Open the file in READ_ONLY mode
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LOOP
-- Calculate the end of the current word
l_end := DBMS_LOB.INSTR(l_loc, l_seb, l_pos, 1);
-- Process end-of-file
IF (l_end = 0) THEN
l_end := DBMS_LOB.INSTR(l_loc, l_sen, l_pos, 1);
l_sum := l_end - l_pos - 1;
DBMS_LOB.READ(l_loc, l_sum, l_pos, l_buf);
dbms_output.put_line(UTL_RAW.CAST_TO_VARCHAR2(l_buf));
EXIT;
END IF;
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l_sum := l_end - l_pos;
DBMS_LOB.READ(l_loc, l_sum, l_pos, l_buf);
dbms_output.put_line(UTL_RAW.CAST_TO_VARCHAR2(l_buf));
l_pos := l_pos + l_sum + 1;
END LOOP;
DBMS_LOB.CLOSE(l_loc);
ELSE
dbms_output.put_line('File ' || l_fil || ' in Directory ' || l_dir ||
' does not exist');
END IF;
EXCEPTION
WHEN OTHERS THEN
dbms_output.put_line('Error:' || SQLERRM);
DBMS_LOB.CLOSE(l_loc);
END;
The Text file content is...
Copyright 1996,2001 Oracle Corporation.     All Rights Reserved
This file contains installation instructions for installing the
Oracle8 ODBC Driver software.
It is divided into four parts:
o Part I: Summary of systems supported by Oracle8 ODBC client
software
Lists the platforms on which the Oracle8 ODBC Client software can
be installed.
o Part II: Oracle8 ODBC Driver software.
Describes the files, and installation prerequisites for the Oracle8
ODBC driver software.
o Part III: Exploding the kit onto your system
Describes how to explode the kit onto your system hard drive.
o Part IV: Installation Instructions
Describes how to install the Oracle8 ODBC driver.
Part I: Systems supported by the Oracle8 client software
You can install the ODBC client software on any of the following systems:
o Windows 2000
o Windows NT X86
o Windows 95
o Windows 98
The Oracle8 ODBC Driver provides support for ODBC connections
from Windows 2000, Windows NT, Windows 95, and Windows 98 systems
to Oracle databases.
o Part II: Oracle8 ODBC Driver software.
Refer to the following files for information about the Oracle8 ODBC Driver:
LICENSE.TXT - Oracle8 ODBC Driver License Agreement. Read carefully
before installing and/or using this product. Enclosed in
your software distribution kit.
SQORA.HLP - A Window's Help file which is the primary reference
          manual for the Oracle8 ODBC Driver.
ODBCRelnotes.WRI - The release notes for the Oracle8 ODBC Driver
which contains information which may have not been
included in the Help file.
Installation Prerequisites
See the Oracle8 ODBC Driver release notes (ODBCRelnotes.WRI),
for a complete list of software products required and their versions.
Time Required
The installation of the Oracle8 ODBC Driver takes approximately 5
minutes. The actual time may be shorter or longer, depending upon
your hardware configuration.
Disk Space Required
The Oracle8 ODBC driver installation requires approximately 2
megabytes of available storage space. The space required depends upon
what files you already have installed. The installation procedure
checks to see if you have enough available disk space. If you do not,
the installation fails.
Part III: Exploding the Kit onto your system
Expand the self-extracting archive file onto your hard drive.
C:\> ORA8174.EXE
Part IV: Installation Instructions
Oracle8 ODBC Driver 8.1.7.4.0
This section assumes the following:
1. MS Windows 2000, Windows NT, Windows 95 or Windows 98 is running.
2. Oracle Universal Installer shipping with 8.1.7 has already been
installed on your system.
3. Part III has been completed.
Software fixes:
Refer to release notes (ODBCRelnotes.wri) for a complete list of
Software fixes.
Installation Instructions
Once the self-extracting archive file ORA8174.EXE has been
exploded it will create an installable directory structure
onto your hard drive. Run the Oracle Universal Installer from
your local drive.
1. On the screen "File Locations" use the "Browse" button of
the source path to choose the file 'products.jar' from the
folder that ORA8174.EXE was extracted to. Choose 'Next'.
2. You will receive a warning that some of the dependencies of
this product are not found in the staging area. This warning
is OK. The ODBC driver depends on the Net8 Client being already
installed on the system. Answer 'Yes' to continue.
Oracle is a registered trademark of Oracle Corporation.
Microsoft, MS are registered trademarks of Microsoft Corporation.
Microsoft Windows, Windows NT, Windows 95, Windows 98 and Open Database
Connectivity are trademarks of Microsoft Corporation.
All other trademarks and registered trademarks are the property
of their respective owners.
The output was...
File testfile.txt in Directory READ_LOB_DIR exists
Copyright
1996,2001
Oracle
Corporation.
All
Rights
Reserved
This
file
contains
installation
instructions
for
installing
the
Oracle8
ODBC
Driver
software.
It
is
divided
into
four
parts:
o
Part
I:
Summary
of
systems
supported
by
Oracle8
ODBC
client
Error:ORA-21560: argument 2 is null, invalid, or out of range
I want to diplay/view as per file content format from the file under that specified directory.
Have any other method / any help or suggestions would be really appreciated.

I changed the code like...
CREATE OR REPLACE Procedure READ_FILE_LOB_tmp IS
-- Input Directory as specified in create directory
l_dir CONSTANT VARCHAR2(30) := 'READ_LOB_DIR';
-- Input File which is read word by word
l_fil CONSTANT VARCHAR2(30) := 'testfile.txt';
-- Separator Character between words is a BLANK (ascii = 32)
l_seb CONSTANT RAW(100) := UTL_RAW.CAST_TO_RAW(CHR(32));
-- Character at the end of the file is NEWLINE (ascii = 10)
l_sen CONSTANT RAW(100) := UTL_RAW.CAST_TO_RAW(CHR(10));
-- Pointer to the BFILE
l_loc BFILE;
-- Current position in the file (file begins at position 1)
l_pos NUMBER := 1;
-- Amount of characters have been read
l_sum BINARY_INTEGER := 0;
-- Read Buffer
l_buf VARCHAR2(4000);
-- End of the current word which will be read
l_end NUMBER;
-- Return value
l_ret BOOLEAN := FALSE;
BEGIN
-- Mapping the physical file with the pointer to the BFILE
l_loc := BFILENAME(l_dir, l_fil);
-- Check if the file exists
l_ret := DBMS_LOB.FILEEXISTS(l_loc) = 1;
IF (l_ret) THEN
dbms_output.put_line('File ' || l_fil || ' in Directory ' || l_dir ||
' exists');
-- Open the file in READ_ONLY mode
DBMS_LOB.OPEN(l_loc, DBMS_LOB.LOB_READONLY);
LOOP
-- Calculate the end of the current word
l_end := DBMS_LOB.INSTR(l_loc, l_sen, l_pos, 1);
-- Process end-of-file
IF (l_end = 0) THEN
EXIT;
END IF;
-- Read until end-of-file
l_sum := l_end - l_pos;
DBMS_LOB.READ(l_loc, l_sum, l_pos, l_buf);
dbms_output.put_line(UTL_RAW.CAST_TO_VARCHAR2(l_buf));
l_pos := l_pos + l_sum + 1;
END LOOP;
DBMS_LOB.CLOSE(l_loc);
ELSE
dbms_output.put_line('File ' || l_fil || ' in Directory ' || l_dir ||
' does not exist');
END IF;
EXCEPTION
WHEN OTHERS THEN
dbms_output.put_line('Error:' || SQLERRM);
DBMS_LOB.CLOSE(l_loc);
END;
Now its working fine with one addtional line...
The file content is...
This is My Content
This is My Content
This is My Content
This is My Content
This is My Content
But The output was...
File testfile.txt in Directory READ_LOB_DIR exists
This is My Content
This is My Content
This is My Content
This is My Content
This is My Content
here, i want to delete that additonal line...?

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hi team,
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hi vincent,
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this is my coding....it's throwing an error when i declare like this
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How to get the file content after uploading file

Hello everyone!
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How to display the file name & status when copying files.

I write a program to backup/copy data from one directory to other directory, and I'm using File List and Runtime.getRuntime().exec("xcopy "+dir1+"\\"+name+" "+dir2+" /y");
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Appreciate your expertise to check my coding below.
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if (done=true) {
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backupText.append(" -> fail! \n");
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http://javafaq.nu/tips/opsys/index.shtml
==============
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Although I don't think this example will do exactly what you want... you might have to delete the waitFor() call and just check to see when there's nothing else to read from the InputStream. It's a start, though, and the web page has a lot of similar examples of this sort of thing.
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Hi,
I have a log file which gets appended to by another program.
I need to show the contents of this log file in the browser window but in a streaming manner. Reading the file in one shot and refreshing the page every few seconds is not a solution as it makes the browser hang when the file size is huge. A unix tail functionality is also acceptable but it should be streaming. Would a servlet or applet do the trick?
Please advise!

is your log file present on web/application server? if yes, you can do the following:
1. create a web page containing text area. (for displaying log file)
2. use XmlHttpRequstObject (Ajax) for querying the next available data from Servlet.
On the Serverside:
You can store the the FileScanner object in session scope. and use it to read the next available data and send it as response.
On the client Side(webpage/javascript)
read the contents of the response and append it to textarea.
In Simple words, I'd say AJAX is the way to go.

How to download a file/contents through a session bean to the bean client

Hi All,
I'm a newbie to enterprise beans and facing a problem. I have a requirement where an excel file saved on the server will be a accessed by a session bean and return it to the bean client (developed in swing). Client will display the file contents, user edits the contents and saves. Pressing the save button will save the excel on the server again using the same session bean.
As far as displaying the contents of excel on the form/panel is concerned I have developed this part and able to load files and save them on my local machine.
But my main requirement is to load it through Session Bean and then save it back on the server. An EJB 2.0 code snippet addressing this part would be a great help.
Thanks,

and where's the problem?
I see 2 EJB calls, one to retrieve the data and another one to send it back to the server.
That's the simplest scenario, easy to implement using a stateless session bean (though if you want to prevent concurrent modification of the file there's a bit more work to do, like keeping a record of open files).
A more complex solution would have the client send only the changes to the file (for network performance reasons maybe) and have the EJB merge those in some way with the original document.
Complex, possibly error prone, probably not worth the effort.
First scenario should pose no problem if you're familiar with Java and have a passing familiarity with EJB.

How to display text file in swing

hello,
I have screen where user enters batch number and number.
when key is pressed a list is displayed on the screen.how to do this and how to relate my actionlistener with the function that generates the list...

Hi,
It is simple. Just create a button and add it to the action listener as button.addActionListener(this);
Your class should extend ActionListener. and also there should be a method named - actionPerformed(ActionEvent avt) in your class
Now inside this method, just compare the action as:
if(avt.getSource()==button)
// in this method, hjust take your file contents and display it on the same window, or create a new Frame here and display it in that window.
If you want to display the file contents in the same window, then do the following.
Declare a public JLabel variable for the class and create the JLabel along with the other components as usual but without giving any values. Now in the action part of the button, read the file contents in a string variable, and set the string to the jlabel as folows:
label.setText(string);
Hope it helps,
Cochu.

How to write the JTables Content into the CSV File.

Hi Friends
I managed to write the Database records into the CSV Files. Now i would like to add the JTables contend into the CSV Files.
I just add the Code which Used to write the Database records into the CSV Files.
void exportApi()throws Exception
          try
               PrintWriter writing= new PrintWriter(new FileWriter("Report.csv"));
               System.out.println("Connected");
               stexport=conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE);
               rsexport=stexport.executeQuery("Select * from IssuedBook ");
               ResultSetMetaData md = rsexport.getMetaData();
               int columns = md.getColumnCount();
               String fieldNames[]={"No","Name","Author","Date","Id","Issued","Return"};
               //write fields names
               String rec = "";
               for (int i=0; i < fieldNames.length; i++)
                    rec +='\"'+fieldNames[i]+'\"';
                    rec+=",";
               if (rec.endsWith(",")) rec=rec.substring(0, (rec.length()-1));
               writing.println(rec);
               //write values from result set to file
                rsexport.beforeFirst();
               while(rsexport.next())
                    rec = "";
                     for (int i=1; i < (columns+1); i++)
                         try
                                rec +="\""+rsexport.getString(i)+"\",";
                                rec +="\""+rsexport.getInt(i)+"\",";
                         catch(SQLException sqle)
                              // I would add this System.out.println("Exception in retrieval in for loop:\n"+sqle);
                     if (rec.endsWith(",")) rec=rec.substring(0,(rec.length()-1));
                    writing.println(rec);
               writing.close();
     }With this Same code how to Write the JTable content into the CSV Files.
Please tell me how to implement this.
Thank you for your Service
Jofin

Hi Friends
I just modified my code and tried according to your suggestion. But here it does not print the records inside CSV File. But when i use ResultSet it prints the Records inside the CSV. Now i want to Display only the JTable content.
I am posting my code here. Please run this code and find the Report.csv file in your current Directory. and please help me to come out of this Problem.
import javax.swing.*;
import java.util.*;
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.table.*;
public class Exporting extends JDialog implements ActionListener
     private JRadioButton rby,rbn,rbr,rbnore,rbnorest;
     private ButtonGroup bg;
     private JPanel exportpanel;
     private JButton btnExpots;
     FileReader reading=null;
     FileWriter writing=null;
     JTable table;
     JScrollPane scroll;
     public Exporting()throws Exception
          setSize(550,450);
          setTitle("Export Results");
          this.setLocation(100,100);
          String Heading[]={"BOOK ID","NAME","AUTHOR","PRICE"};
          String records[][]={{"B0201","JAVA PROGRAMING","JAMES","1234.00"},
                           {"B0202","SERVLET PROGRAMING","GOSLIN","1425.00"},
                           {"B0203","PHP DEVELOPMENT","SUNITHA","123"},
                           {"B0204","PRIAM","SELVI","1354"},
                           {"B0205","JAVA PROGRAMING","JAMES","1234.00"},
                           {"B0206","SERVLET PROGRAMING","GOSLIN","1425.00"},
                           {"B0207","PHP DEVELOPMENT","SUNITHA","123"},
                           {"B0208","PRIAM","SELVI","1354"}};
          btnExpots= new JButton("Export");
          btnExpots.addActionListener(this);
          btnExpots.setBounds(140,200,60,25);
          table = new JTable();
          scroll=new JScrollPane(table);
          ((DefaultTableModel)table.getModel()).setDataVector(records,Heading);
          System.out.println(table.getModel());
          exportpanel= new JPanel();
          exportpanel.add(btnExpots,BorderLayout.SOUTH);
          exportpanel.add(scroll);
          getContentPane().add(exportpanel);
          setVisible(true);
      public void actionPerformed(ActionEvent ae)
          Object obj=ae.getSource();
          try {
          PrintWriter writing= new PrintWriter(new FileWriter("Report.csv"));
          if(obj==btnExpots)
               for(int row=0;row<table.getRowCount();++row)
                         for(int col=0;col<table.getColumnCount();++col)
                              Object ob=table.getValueAt(row,col);
                              //exportApi(ob);
                              System.out.println(ob);
                              System.out.println("Connected");
                              String fieldNames[]={"BOOK ID","NAME","AUTHOR","PRICE"};
                              String rec = "";
                              for (int i=0; i <fieldNames.length; i++)
                                   rec +='\"'+fieldNames[i]+'\"';
                                   rec+=",";
                              if (rec.endsWith(",")) rec=rec.substring(0, (rec.length()-1));
                              writing.println(rec);
                              //write values from result set to file
                               rec +="\""+ob+"\",";
                               if (rec.endsWith(",")) rec=rec.substring(0,(rec.length()-1));
                               writing.println(rec);
                               writing.close();
     catch(Exception ex)
          ex.printStackTrace();
     public static void main(String arg[]) throws Exception
          Exporting ex= new Exporting();
}Could anyone Please modify my code and help me out.
Thank you for your service
Cheers
Jofin

How to display the content of a region on a different page

Hello,
Does anyone knows how to display the content of a region on an other page. I try to make page that displays content that resides somewhere else in my portal, so I can give a summarization of some hot topics. I really want to display the whole content of some regions (not a display with custom search).
Thanks a lot,
Hans

Set that page as portlet, include it in a region in another page and in the edit defaults decide which regions you want to display.
Mere.

How to display the file contents???

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