Reading RTF file content from JSP which stored in database as image format

<%@page import="java.sql.*" %>
<%@page import="java.net.*" %>
<%@page import="java.io.*" %>
<%@page import="java.*" %>
<%@page import="javax.swing.*" %>
<%@page import="javax.swing.text.*" %>
<%@page import="javax.swing.text.rtf.*" %>
<%
     Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
Connection con=DriverManager.getConnection("jdbc:sqlserver://local:1433;databaseName=database;user=sa");
     Statement st=con.createStatement();
     ResultSet rs=st.executeQuery("select Document from docrev where UniqeId ='199207' ");//("select data from rtfdata");227317
     rs.next();
     byte bt[]=rs.getBytes(1);
     InputStream fi = new ByteArrayInputStream( bt );
     RTFEditorKit rtf = new RTFEditorKit();
     JEditorPane editor = new JEditorPane();
     editor.setEditorKit( rtf );
     rtf.read( fi, editor.getDocument(), 0 );
     Document d=editor.getDocument();
     String str=d.getText(0,d.getLength());
     /*OutputStream fo=new FileOutputStream("temp3.rtf");
     fo.write(str.getBytes());*/
%>
<html>
<body>
<p><textarea name=myarea style="background:#FFCC99" cols=100 rows=50><%=str%></textarea>
</body>
</html>
Edited by: Santhu538 on Oct 23, 2007 10:16 PM
Edited by: Santhu538 on Oct 23, 2007 10:25 PM
Edited by: Santhu538 on Oct 23, 2007 10:26 PM

Please use code tags while posting code. See the code button above the text area?
It's a good practise not to mix jdbc code in your jsp (mvc and all that you see)
Finally you'll have to quickly decide on your front end - jsp or swing. It looks like the former, but then with the code you have posted, the server is apt to pop up some windows prompting the user who has logged on (to the server) to choose the files for the client :)
ram.

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     at java.lang.Thread.run(Thread.java:595)
Mar 16, 2005 9:32:44 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet display_files threw exception
java.lang.IllegalStateException: getOutputStream() has already been called for this response
     at org.apache.catalina.connector.Response.getWriter(Response.java:596)
     at org.apache.catalina.connector.ResponseFacade.getWriter(ResponseFacade.java:161)
     at javax.servlet.ServletResponseWrapper.getWriter(ServletResponseWrapper.java:111)
     at org.apache.jasper.runtime.JspWriterImpl.initOut(JspWriterImpl.java:122)
     at org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:115)
     at org.apache.jasper.runtime.PageContextImpl.release(PageContextImpl.java:182)
     at org.apache.jasper.runtime.JspFactoryImpl.internalReleasePageContext(JspFactoryImpl.java:115)
     at org.apache.jasper.runtime.JspFactoryImpl.releasePageContext(JspFactoryImpl.java:75)
     at org.apache.jsp.ootMain_jsp._jspService(org.apache.jsp.ootMain_jsp:596)
     at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:325)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:302)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:246)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
     at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:682)
     at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:581)
     at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:501)
     at oot.display_files.doGet(display_files.java:63)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:106)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
     at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:576)
     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
     at java.lang.Thread.run(Thread.java:595)Line 63 is the include...

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;
-- 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(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);
-- 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_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;
-- 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;
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...?

Reading RTF file content from JSP which stored in database as image format

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