How to read a property file..urgent

Hi ,
This is kinda urgent if you can help! I am a new bee to servlet and java.
My JSP calls a java class file. In the class file i establish my connection to database.
My requirement is to read a property file for the database name, username and password and connet to the database using JDBC(database is oracle).
which class to use. I know something about properties class. Is there any other class which can read my property file.
Or is there any other all together a better way to do it.
thanks in advance
Amit

Inside your WAR file somewhere under the WEB-INF directory. This space is protected, whereas the ROOT (of course) is not. Unless you would like someone else to read your properties file...
Once you decide where you want it, post the section of code where you load the properties file, we can probably help you figure out where you path is wrong.

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How will read the property file on dynamically?

hi,
I developed 2 java files...in both the files i am reading the some content from .property file(Notes.properties)....
I created the jar file call Aix.jar using the following command.
jar -cvf Aix.jar *.class(without specifying the notes.properties file)...
then i executed the java file using the folowing command
java -cp Notes.jar;Aix.jar NotesToolTest
now i am getting following exception:
Exception in thread "main" java.lang.ExceptionInInitializerError
Caused by: java.util.MissingResourceException: Can't find bundle for base name Notes, locale en_US
at java.util.ResourceBundle.throwMissingResourceException(Unknown Source)
at java.util.ResourceBundle.getBundleImpl(Unknown Source)
at java.util.ResourceBundle.getBundle(Unknown Source)
at NotesToolTest.<clinit>(NotesToolTest.java:28)
I got the problem why this happening...because notes.properties is not included in jar file...that's why the above exception is coming.
But my problem is can i run the java file that will take .prooperties file dynamically(if .property is available on the current directory)...
Thanks in advance,,,,
Regards,
Sankar

because notes.properties is not included in jar file..Wrong. It is simply not available in the classpath.
The solution is either putting the properties file in the classpath of JVM used, or adding the system path to the propertiesfile to the classpath of the JAR.

How to add the property file..ie(default.properties) to a webdynpro project

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How to add the property file..ie(default.properties) to a webdynpro project.
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Hi DK,
this is described in the second Web Dynpro Java Tutorial
<a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/sdn/downloaditem?rid=/library/uuid/b1a3e990-0201-0010-aeb2-a2ef5bc3da8e">creating an Extended Web Dynpro Application</a>
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Read a property file and store it in a hashmap

Hi,
I have tried to read a property file and store it in a hashmap. The property-names should be stored in keys and the property-values (after = symbol) in values of the hashmap. any ideas? Is it possible to do this?

mandy2001ir wrote:
yes, but I need the hashmap for another reason. Actually I'm trying to use the properties file to have a dynamic hachmap. I don't want to change the code anytime I want to put a value in the hashmap. therefor I write the "keys" and "values" in a property file and change the property file. That's the reasn why we have property files, isn't it?What's a "dynamic hashmap"? There's no other kind! Whenever someone starts bandying around the word "dynamic" in contexts like this, it usually means there's a simple solution to their problem, that they haven't yet considered, or mistakenly don't believe is applicable to them, because of this "unique" need for something "dynamic". Trust me, you just need to load the file using a Properties object, and you're done. Properties extends Hashtable, which is virtually the same thing as a HashMap. Properties does exactly what you want it to. it's the very reason the class exists
Have you even looked at the javadoc for java.util.Properties yet? I'm betting not, because if you had, you'd know exactly what I meant. And since you haven't, I'm at a bit of a loss as to how you can so easily dismiss the class as useless, despite existing to do exactly what you need

How to Read a CAB File from JAVA?

Hi,
Anyone knows how to read a CAB File from java. I need to read a property file of txt file that is packaged in CAB file & then based on that, I have to do processing. Is there anyway to do it.
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siva.

Perhaps there's something in the Cabinet SDK that will help:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dncabsdk/html/cabdl.asp

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servername="abcServer"
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password="test123"
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Hi Vijay,
You can try this piece of code too:
Properties props = new Properties();
//try retrieve data from file
//catch exception in case properties file does not exist
try {
         props.load(new FileInputStream("c:\property\Test.properties")); //File location
         String serverName = props.getProperty("servername"); //Similarly, you can access the other properties
         if(serverName==null)
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Alka.

Read a property file !

Hi all,
i have to read a property file; i put it under the directory WEB-INF/classes so i can read it using the classloader.
This works fine under Tomcat, but when i put my webapplication under SunONE, i must put this file under the directory /server1/config.......how cai force the system to read the file from the WEB-INF/classes directory without specifing an absolute path ?
Cheers.
Stefano

There are a couple of ways, but you need the ServletContext object.
ServletContext.getRealPath("websitePath")
ServletContext.getResourceAsStream("websitePath")
The first method converts a website relative path to a location on disk - eg /config -> c:\tomcat\webapps\myApp\config
The second actually opens a file at that location, and returns an input stream to it.
The second can be more portable, because if the container you are using does not "explode" the WAR file, the path returned refers to the target within the WAR file - and the java.io functions don't handle that case.
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How can you change property files of a EJB at Runtime?

Hi,
I have got an ejb and want to change my variables which I stored in property file at Runtime.
But the property file isn´t in the jar-file of my ejb...
How can I add it.
Or How can I change the property file without new compilation.
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Uli

Hi Uli,
the previous post is generally correct, but without taking any part in the sensibility of this (there are valid reasons why you would not store the values in a DB) it would be necessary for you to be a bit more specific.
Is your problem that you can not see the file from your EJB or that you don't know how to change a property file entry in general?
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Kalle

How to read several text files at a time

Dear all
Read and write one text file is not a problem, but what confusies me is how to read several text files at one time, in the meanwhile,
is it possible to display the name of the text file?
For example, assuming I want to load file" cha 1, cha 2 , cha 3, " at one time and show their names, how to hadle with it
I have reviewed some files and it is not helpful

Either with a 'for' loop like in the lib you have attached, or like this attached VI
that's it
Message Edited by devchander on 05-30-2006 05:11 AM
Attachments:
MULTIPLE READ.vi ‏44 KB

In Vista, Applet isn�t able to read the property files

I�m working on internationalization; the Applet which I�m using wasn�t able to read the property files properly in windows Vista machine. But if I create a jar which contains all the classes and property files, Applet works fine.
This problem is only in Vista machine ,In XP the JVM is smart enough to read plain .property files and its works well without creating the jar
Is that related to any security enhancemence of vista over XP?
Below is a link about The Java Security Model break on Windows Vista
http://bugs.sun.com/view_bug.do?bug_id=6548078
I tried a simple ResourceBundle.getBundle() in my Applet in different ways but nothing work fine for me. It isn�t an issue related to path, I guess because I tried several ways like.
ResourceBundle labels = ResourceBundle.getBundle("LabelsBundle");
ResourceBundle labels = ResourceBundle.getBundle("LabelsBundle",currentLocale);
ResourceBundle labels = ResourceBundle.getBundle("com.test.LabelsBundle");
ResourceBundle labels = ResourceBundle.getBundle("com.test.LabelsBundle",currentLocale);The exception got in java console is
CONFIG: [2008-05-13 15:54:57.909]:(com.satm.insite.InsiteApplet$2@1696e4c):InisiteApplet: Exception: java.util.MissingResourceException: Can't find bundle for base name LabelsBundle, locale en
java.util.MissingResourceException: Can't find bundle for base name LabelsBundle, locale en
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            at com.satm.insite.InsiteApplet.callme(InsiteApplet.java:296)
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Crossposted:
http://forum.java.sun.com/thread.jspa?threadID=5295743&messageID=10250558#10250558
http://forum.java.sun.com/thread.jspa?threadID=5295742&messageID=10250556#10250556

Error while reading a property file from a war.

Hi,
I am trying to read a property file which is available in the properties folder.
The piece of code that does this read is as follows.
InputStream is = ClassLoader.getSystemResourceAsStream("codemap.properties");
System.out.println("Reading file:"+is);
properties.load(is);
The "codemap.properties" file is available in the properties folder.
Following is my directory structure in the war file
sample.war
|
|
WEB-INF
|
|
classes
|
|
properties
|
|______ codemap.properties
Inside the war file I have WEB-INF and properties folder.
Inside WEB-INF i have the classes folder which has the classes
Inside the properties folder I have the codemap.properties file.
I am using Jboss. In the class path I have ./properties
I have also added this classpath in the manifest file.
Problem: The piece of code that I have written to read the property file is not able to locate the file and this it returns null.
I am not sure what i am missing here.
If anyone there have any solutions please let me know.
Thanks in Advance
Balaji.

I think you've to change this line
InputStream is = ClassLoader.getSystemResourceAsStream("codemap.properties");with this.
InputStream is = ClassLoader.getSystemResourceAsStream("properties/codemap.properties");it is unable to find the path you specified. by default it'll check the WEB-INF directory. so you've to give the relative path to it.
Diablo

How to read multiple dat files.

Hello Everyone!
I am working on a project that requires one file that creates a JFrame with a current file title, JTextFields that accesses two .dat files and a JButton.
The user clicks a JButton to cycle through the first sequential .dat file. When the end of the first file is reached the file is closed, the JFrame title is changed to the second file title as the user continues to click the JButton to continue on viewing the second file?s records, until the second reaches the end of file.
The project requires using Try-Catches to catch the EOF exceptions and IOExceptions and Thread or Runnable.
I have been able to get one file to read and display its records; however, researching back through my text on how to read/write to files I haven?t been able to determine how to get to the end of the file and proceed to the next file without triggering the EOFException. I have even tried multiple Try-Catches (one for each file within the actionPerformed method) and that ends up ignoring the first file records and only displays the second files records.
This is a school project and we have only covered just the bare basics of Java over the last two months. So, any hints that anyone can provide can only be of what type of procedure will be needed or what procedure won?t help to complete the task, without giving away the solution.
I have spent approximately 40 hours of study time on this project and believe that I have definitely run into a major snag.
The following is the code I have so far:
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class StudentRead extends JFrame implements ActionListener
   private JLabel gradStudentList = new JLabel("GRADUATE Student List");
   private JLabel undergradStudentList = new JLabel("UNDERGRADUATE Student List");
   private Font bigFont = new Font("Helvetica", Font.ITALIC, 24);
   private JLabel userprompt = new JLabel("View the students");
   private JTextField idNumText = new JTextField(4);
   private JTextField lastNameText = new JTextField(15);
   private JTextField firstNameText = new JTextField(15);
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   private JLabel firstNameLabel = new JLabel("First name");
   private Container con = getContentPane();
   DataInputStream gradStudentInStream;
   DataInputStream undergradStudentInStream;
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      super("Read Student Records");
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         undergradStudentInStream = new DataInputStream(new FileInputStream("UndergradStudents.dat"));
      catch(IOException e)
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         System.exit(1);
      setSize(325, 200);
      con.setLayout(new FlowLayout());
      gradStudentList.setFont(bigFont);
      con.add(gradStudentList);
      con.add(userprompt);
      con.add(idNumberLabel);
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      con.add(lastNameText);
      con.add(firstNameLabel);
      con.add(firstNameText);
      con.add(viewRecordButton);
      viewRecordButton.addActionListener(this);
      setVisible(true);
      setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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         lastName = gradStudentInStream.readUTF();
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         firstNameText.setText(firstName);
      catch(EOFException e2)
         closeFile();
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      catch(IOException e3)
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         System.out.println("out");
         System.exit(1);
   public void closeFile()
      try
         gradStudentInStream.close();
         System.exit(0);
      catch(IOException e)
         System.err.println("Error closing file");
         System.exit(1);
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}

deepak_1your.com wrote:
hi,
If you want to read a file guarding yourself agianst exceptions....
check this article.... the code presented in this article might suit your needs...
[http://1your.com/fusion/infusions/articles/readarticle.php?article_id=17|http://1your.com/fusion/infusions/articles/readarticle.php?article_id=17]
And how does that help with a DataInputStream?

How to read an xml file from headers

Hi ,
I am not getting how to read an xml file sent by client device in header to server.
Thankx.

There is a getHeader() in HttpServletRequest interface
String locationURL=request.getHeader("Location");If URL of your file was set in Location attribute of header.
Edited by: ngpgeeta on Dec 19, 2008 8:03 AM

How to read a text file using Java

Guys,
Good day!
Please help me how to read a text file using Java and create/convert that text file into XML.
Thanks and God Bless.
Regards,
I-Talk

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cheers
Mohammed Jubaer Arif.

How to read a text file through pl/sql

How to read a text file through pl/sql

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How to read a property file..urgent

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