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IOException when creating a temporary file?

I'm creating a task plugin for Atlassian Bamboo. At some moment of task executing, I would like to create a temporary file:
File temp = File.createTempFile(fileName.toString(), null, dir);
temp.deleteOnExit();
, where:
fileName.toString() = e.g. "C:\Atlassian\bamboo-home\xml-data\build-dir\CMPT-CMPTP-JOB1\test.java"
dir = new File("temp");
When testing this locally, everything works fine - the file is created properly. However, after I deploy plugin on server and try to execute above code, I've got an IOException:
java.io.IOException: The filename, directory name, or volume label syntax is incorrect
at java.io.WinNTFileSystem.createFileExclusively(Native Method)
at java.io.File.createTempFile(File.java:1879)
What could be the reason?
Additional info: I'm pretty sure that dir.exists() .

A file name of
"C:\Atlassian\bamboo-home\xml-data\build-dir\CMPT-CMPTP-JOB1\test.java"
is valid on Windows but is invalid on Unix operating systems. You won't be able to create a (temp) file like that, either as specified as the absolute name/path or the file nor just relative to another folder.
If your OS is Windows, you still can't use a full path (starting with drive specification like "C:") to be created as a child of another folder.

You could have spaces in the beginning or the ending of your path, print your file.getAbsolutePath() in order to see the current path where java is reading.

The dir variable must be set with the full (or relative) path to the directory temp. The first arg of File.createTempFile should be the prefix of the temp file (at least three letter long. for exeample "test"). This will create a "test.tmp" in the given directory (specified by the variable dir).
Check the javadoc
You can check existence of the directory dir with dir.exists()

No such file or directory in MySQL SQL script

I have a SQL script that contains the following
LOAD DATA LOCAL INFILE '.\\datafiles\\customers.txt' INTO TABLE Customers`
I open and run it in MySQL workbench and I get following error:
Error Code: 2. File '.\datafiles\customers.txt' not found
(Errcode: 2 - No such file or directory)
Where should I put file customers.txt according '.\datafiles\customers.txt'?
I use windows 7 and I tried the following placse:
C:\datafiles
C:\temp\datafiles
C:\tem\datafiles
C:\Users\michael\datafiles

I think \\ is incorrect. I Always use full path.
So if the file is in C:\datafiles\ use
LOAD DATA LOCAL INFILE 'C:\datafiles\customers.txt'
INTO TABLE Customers LINES TERMINATED BY '\r\n';

Use absolute path with slash as a separator like this:
'C/your_folder/.../datafiles/customers.txt'

Servlet - Addressing properties files

I have a simple Servlet that needs to pass some properties files to another class.
Properties prop = new Properties();
prop.load(new FileInputStream("/home/user/config.properties"));
Above works fine.
But I can't address the right absolute path in below:
String protocol = prop.getProperty("protocol", "/home/user/protocol.properties");
String routes = prop.getProperty("routes", "/home/user/routes.properties");
MyClass message = new MyClass(protocol, routes, 0);
At the end I receive below from tomcat log:
INFO: Server startup in 3656 ms
java.io.FileNotFoundException: routes.properties (No such file or directory)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:138)
at java.io.FileInputStream.<init>(FileInputStream.java:97)
at com.cc.verticals.Messenger.<init>(Messenger.java:134)
at com.foo.MyClass.<init>(MyClass.java:42)
at com.verticals.cc.util.VerticalUtil.setup(VerticalUtil.java:59)
at com.verticals.cc.util.VerticalUtil.main(VerticalUtil.java:259)
at com.verticals.cc.dao.VerticalDao.<init>(VerticalDao.java:24)
at com.verticals.cc.controller.VerticalController.<init>(VerticalController.java:33)
Line 42 is pointing to the constructor where routes.properties file goes in.
Messenger line 134 points to:
prop.load(new FileInputStream(routesFilename));
Any Idea how to address the properties files and send them as a String parameter? Thanks.

By the looks of it (I prefer if you post the content's of the properties files), there is a property within config.properties such that routes = routes.properties. When you call new file(routes); you get the FileNotFoundException because you are trying to open routes.properties in the current working directory where java was launched (which doesn't exist)
As a side note, you using one property file to reference another property, which is fine but a bit odd or unconventional. Further, you should stick these files in a 'resource' folder to remove absolute paths and gain portability.

Notice that prop.getProperty method cannot throw FileNotFoundException. So that exception must have been thrown earlier on prop.load();
Please make sure that you have opened the permissions on the file. Open a terminal and issue following command:
$ chmod 777 /home/user/routes.properties
$ chmod 777 /home/user/protocol.properties

Unable to Insert image to mysql database using servlet

Could anyone please help me out with the following?
I'm trying to insert an image to the blob column in mysql database through a servlet.
I'm selecting the image through the "HTML FILE INPUT TYPE" which is in a JSP file.So the full path of the image is selected.
The error I have been getting is:
HTTP Status 500 - Desert.jpg (The system cannot find the file specified)
type Exception report
message Desert.jpg (The system cannot find the file specified)
description The server encountered an internal error (Desert.jpg (The system cannot find the file specified)) that prevented it from fulfilling this request.
exception
java.io.FileNotFoundException: Desert.jpg (The system cannot find the file specified)
java.io.FileInputStream.open(Native Method)
java.io.FileInputStream.<init>(Unknown Source)
Image.ImgInsert.doGet(ImgInsert.java:51)
javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.28 logs.
Apache Tomcat/7.0.28
Where "Desert.jpg" is the image which is on my desktop.
This same program works on my friends computer.
Here is the servlet code:
String s_id = request.getParameter("myid");
int id = Integer.parseInt(s_id);
//IMAGE ACQUIRED FROM THE FROM THE JSP PAGE
String img = request.getParameter("myimg");
File f = new File(img);
FileInputStream fis = new FileInputStream(f);
String query="insert into images.imageinsert(id,image) values(?,?)";
try
{
PreparedStatement pStatement = conn.prepareStatement(query);
pStatement.setInt(1, id);
pStatement.setBinaryStream(2, fis);
int result = pStatement.executeUpdate();
if(result != 0)
{
response.sendRedirect("ImageHome.html");
}
pStatement.close();
Could anyone please help me out?

There are at least two serious conceptual mistakes here.
You seem to think that having the client side local disk file system path is sufficient to obtain the entire file contents in the server side. This is impossible as the client and server don't share the same disk file system (unless they both happen to run on physically the same computer, which of course don't occur in real world).
You're relying on relative paths in java.io stuff. It becomes relative to the so-called "Current Working Directory" which is the folder which is been opened at exactly that moment the webserver was started. This is definitely not the folder where the webapplication is directly sitting in. This is for example C:\path\to\tomcat\bin. The uploaded file surely isn't magically been placed in there.
As to why it works on the machine of your "friend", that's undoubteldly because he's using Internet Explorer which has a security bug wherein the full file path instead of only the file name is been sent as request parameter on an <input type="file"> field of a <form> without enctype="multipart/form-data". Again, as answered, this approach surely won't work in a real production environment.
Your concrete problem can be understood and solved by carefully reading the following answers.
How to get the file path from HTML input form in Firefox 3
getResourceAsStream() vs FileInputStream
How to upload files to server using JSP/Servlet?

Deployment in tomcat

i am getting a problem
i have deployed a war file, when i run localy through tomcat it works fine but when i run on another system by giveing my system ip and then project folder e.g
http:\192.168.0.145\DllTest it loads the applet but when i click on a button to load the functionality it is throwing an exception
Exception in thread "AWT-EventQueue-3" java.lang.UnsatisfiedLinkError: Expecting an absolute path of the library: http:\192.168.0.145:8080\DllTest\lib\jinvoke.dll
while it is working fine localy but not in another system. Please tell me what is the problem.
Is it a rights issue or something else.

You cannot load a DLL on an external host. It has to be an absolute disk file system -as the exception message already hints. Your best bet is to download it manually, create a temp file and load it instead.
File dllFile = File.createTempFile("jinvoke", ".dll");
InputStream input = new URL(getCodeBase(), "lib/jinvoke.dll").openStream();
OuptutStream output = new FileOutputStream(dllFile);
// Write input to output and close streams the usual Java IO way.
// Then load it using absolute disk file system path.
System.loadLibrary(dllFile.getAbsolutePath());
dllFile.deleteOnExit();