All about Rakesh Gadre

Nope

17 years ago

We are using Apache 2.2 and Tomcat 5.5.16 on UNIX.

The application was working fine and all of a sudden Tomcat crashed!! Here is the log:

[Mon Aug 20 11:35:33 2007] [info] ajp_service::jk_ajp_common.c (1721): Receiving from tomcat failed, recoverable operation attempt=0
[Mon Aug 20 11:35:33 2007] [info] ajp_service::jk_ajp_common.c (1749): Sending request to tomcat failed, recoverable operation attempt=1
[Mon Aug 20 11:35:33 2007] [info] ajp_connection_tcp_get_message::jk_ajp_common.c (955): Tomcat has forced a connection close for socket 17
[Mon Aug 20 11:35:33 2007] [error] ajp_get_reply::jk_ajp_common.c (1503): Tomcat is down or refused connection. No response has been sent to the client (yet)
[Mon Aug 20 11:35:33 2007] [info] ajp_service::jk_ajp_common.c (1721): Receiving from tomcat failed, recoverable operation attempt=0
[Mon Aug 20 11:35:33 2007] [info] ajp_service::jk_ajp_common.c (1749): Sending request to tomcat failed, recoverable operation attempt=1
[Mon Aug 20 11:35:33 2007] [info] jk_open_socket::jk_connect.c (444): connect to 127.0.0.1:8009 failed with errno=146

Any clue?

17 years ago

Tomcat

problem with jar file

Hi Chintan,

I am not creating jar file using eclpse, I am using ANT script to do that. I add the jar file in project build path.

19 years ago

Java in General

problem with jar file

Hello,

I am using Eclipse and have 2 projects in it.
I create a jar file of project1 and use it in project2.
The jar file of project1 is added in the path of project2.

Now, the problem..

I have added some new code in one of the java programs of project1.
The jar is created as usual.

If i try to access the newly added code from project2, I get No Such Method exception..

If I expand the jar file from eclipse, I see the new function.
If I decompile the respective class file, I see the new code.
If I use reflection package and print the method names, I DO NOT SEE the enw method..

I am really confused and not sure where the problem is..

I am using JDK1.4, Eclipse 3.1, ANT 1.6.5

Thanks in advance

Rakesh

19 years ago

Java in General

Session is not preserverd whn sendRedirect is used ???

It looks like a typo error. It seems that the para refers to the requst scope rather than session.

19 years ago

Servlets

Junk characters while reading excel file

Hi All,
I am using the following code to read an excel file using jsp/Weblogic 8.1 I have already set MIME type in weblogic. Still, it gives junk characters.

Any suggestions ???

Here is the code:
*****************************************
<%@ page import="java.util.*,java.io.* "%>
<html>
<%
String fileNameWithPath = "C:\\test.xls";
FileInputStream fileStream = new FileInputStream (fileNameWithPath);
intnumberOfBytes = fileStream.available ();
byte contents [] = new byte [numberOfBytes];
fileStream.read (contents);
ServletOutputStream sout = response.getOutputStream();
response.setContentType("application/vnd.ms-excel");

response.setHeader("Content-Disposition","inline; filename=\"" + "MyFile" + "\";");
sout.write (contents);
sout.flush ();
%>

</html>
**********************************************
Thanks in advance

Cheers !!

Rakesh

20 years ago

BEA/Weblogic

Junk characters while reading an excel file

Hi All,
I am using the following code to read an excel file using jsp/Weblogic 8.1 I have already set MIME type in weblogic. Still, it gives junk characters.

Any suggestions ???

Here is the code:
*****************************************
<%@ page import="java.util.*,java.io.* "%>
<html>
<%
String fileNameWithPath = "C:\\test.xls";
FileInputStream fileStream = new FileInputStream (fileNameWithPath);
intnumberOfBytes = fileStream.available ();
byte contents [] = new byte [numberOfBytes];
fileStream.read (contents);
ServletOutputStream sout = response.getOutputStream();
response.setContentType("application/vnd.ms-excel");

response.setHeader("Content-Disposition","inline; filename=\"" + "MyFile" + "\";");
sout.write (contents);
sout.flush ();
%>

</html>
**********************************************
Thanks in advance

Cheers !!

Rakesh

20 years ago

JSP

Open excel in JSP

Hi,
I am trying to display an excel file to the user. In the jsp file, the code is as under:

FileInputStream fileStream = new FileInputStream (fileNameWithPath);
int numberOfBytes = fileStream.available ();
byte contents [] = new byte [numberOfBytes];
fileStream.read (contents);
ServletOutputStream sout = response.getOutputStream();
response.setContentType("application/vnd.ms-excel");
response.setHeader("Content-Disposition","inline; filename=\"" + onlyFileName + "\";");

sout.write (contents);

Now, the problem is as under:

The server does not have MS office(Excel) installed on it. If I try to set the content type as ms-excel, it does not recognises it and what i get is junk code. Is there any way to read the excel without having MS office(Excel) installed on the server ?

Thanks in advance

Rakesh

20 years ago

JSP

OPEN/SAVE popoup box comes twice

Hi,

Thanks for the reply. I am using Windows XP. The application uses struts. Wil that make any difference ? If i try the same code seperately using a jsp file directly, it works properly..

I am really stuck up it seems :roll:

Rakesh

20 years ago

Struts

OPEN/SAVE popoup box comes twice

Hi,
I am trying to open a csv file on the browser. I am facing the following problem :

WHen i click on the link that opens the csv file, it popups a window asking whether to OPEN /SAVE the file. If I click on OPEN, instead of opening the file, it again opens the same dialog box. On clicking the OPEN for the second time, it opens the file in excel.

I want the use to see the file only be clicking OPEN button for the first time.

The code snippet is as under:

File file = new File (fileName);
FileInputStream fileStream = null;
try
{
// Open the file to download
fileStream = new FileInputStream (file);
// Read the contents of the disk file into an in memory byte array
int numberOfBytes = fileStream.available ();
byte contents [] = new byte [numberOfBytes];
fileStream.read (contents);
ServletOutputStream out = res.getOutputStream();
res.setContentType(contentType);

res.setHeader("Content-Disposition","attachment;filename=\"" + downloadFileName + "\";");

out.write (contents);
out.flush ();

I AM USING STRUTS FRAMEWORK.

Thanks in advance,
rakesh

20 years ago

Struts

Close browser window

Hi,
I am using a jsp file to open an excel file by using the following Syntax:

<%
String fileName = (String)session.getAttribute("fileName");
%>
<html>
<meta http-equiv="refresh" content="0;URL=<%=fileName%>">
</html>

This code opens up a dialog box that prompts user to OPEN/SAVE the file.

Now, my requirement is that if user saves the file, I want to close the browser window automatically... if he opens it, nothing should happen..

Thanks in advance

20 years ago

JSP

while opening csv file, dialog box opens twice

Hi,
I am trying to open a csv file on the browser. I am facing the following problem :

WHen i click on the link that opens the csv file, it popups a window asking whether to OPEN /SAVE the file. If I click on OPEN, instead of opening the file, it again opens the same dialog box. On clicking the OPEN for the second time, it opens the file in excel.

I want the use to see the file only be clicking OPEN button for the first time.

The code snippet is as under:

File file = new File (fileName);
FileInputStreamfileStream = null;
try
{
// Open the file to download
fileStream = new FileInputStream (file);
// Read the contents of the disk file into an in memory byte array
intnumberOfBytes = fileStream.available ();
byte contents [] = new byte [numberOfBytes];
fileStream.read (contents);
ServletOutputStream out = res.getOutputStream();
res.setContentType(contentType);

res.setHeader("Content-Disposition","attachment;filename=\"" + downloadFileName + "\";");

out.write (contents);
out.flush ();

Thanks in advance,
rakesh

20 years ago

JSP

Help in DBMS_OBFUSCATION_TOOLKIT package.

Hi All,
I am using DBMS_OBFUSCATION_TOOLKIT package for encrypting and decrypting the data.
For encryption OR decryption, we use a KEY on the basis of which data is encrypted or decrypted.
My problem is like this :
1. I set a key say 'aaaaaaaa'.
2. Now, all the records will be encrypted using that key and decryption is possible using this key only.
3. Later, I want to change the key.
So, I am decrypting all the records with the old key and then encrypting all with the new key.
Now, there is a problem in this approach as under :
I enter data as 'rakesh' (6 characters). When I decrypt it, it gives me the same string i.e. 'rakesh', but the length will be of 8 characters.( The decrypted string comes in the multiples of 8) .
When i try wo encrypt it with the new KEY, the encryption will happen for 8 characters and not for 6 ( which is the actual length of the string).
so, the strings will never match.
This thing is gonna happen everytime i change the KEY.
What I need is a way by which i can migrate directly from one KEY to other KEY without excryption / decryption.

21 years ago

Oracle/OAS

OutOfMemoryError in JSP

Hi All,
I am using a customized API for fetching values from the database.
To use that API, i store each row of the ResultSet in a vector and in turn i store all such vectors in another vector.
Now, the problem is that, if the number of records are more for ex. 25000 - 30000 it gives me an error like OutOfMemoryError.
The problem is that, i cannot change code to fetch the values from the database i.e. i cannot skip vectors.
please suggest me something at the earliest.
Thanx in advance.
Rakesh

21 years ago

JSP

Problen with default.properties file of J2EE server

Hi all,
I am using J2ee1.2.1 server for EJB applications. I use Oracle Database and thin drivers.
I am having problen with default.properties file of the j2ee server. Whenever I try to access the database from the Deployment wizard, i get error like database not found etc.
Can anyone send me default.properties file which is properly configured for thin drivers ??
Rakesh

22 years ago

EJB and other Jakarta /Java EE Technologies

Rakesh Gadre

Recent posts by Rakesh Gadre