E4200 - Anonymous ftp server read and write
Hello,
Is there any possibility to set linksys E4200 for support anonymous acces to ftp server in read and write mode ?
Thanks,
BR, Mariusz.
Nope, just anonymous read access only, according to the options they give you. 192.168.1.1--->storage--->administration----> anonymous FTP access (enabled)
I don't work for Cisco. I'm just here to help.
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Why does this class not read and write at same time???
I had another thread where i was trying to combine two class files together
http://forum.java.sun.com/thread.jspa?threadID=5146796
I managed to do it myself but when i run the file it does not work right. If i write a file then try and open the file it says there are no records in the file, but if i close the gui down and open the file everything get read in as normal can anybody tell me why?
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import bank.BankUI;
import bank.*;
public class testing extends JFrame {
private ObjectOutputStream output;
private BankUI userInterface;
private JButton SaveToFile, SaveAs, Exit; //////////savetofile also saves to store need to split up and have 2 buttons
//private Store store; MIGHT BE SOMETHING TO DO WITH THIS AS I HAD TO COMMENT THIS STORE OUT TO GET IT WORKING AS STORE IS USED BELOW
private Employee record;
//////////////////////////////////////from read
private ObjectInputStream input;
private JButton nextButton, openButton, nextRecordButton ;
private Store store = new Store(100);
private Employee employeeList[] = new Employee[100];
private int count = 0, next = 0;
/////////////////////////////////////////////from read end
// set up GUI
public testing()
super( "Employee Data" ); // appears in top of gui
// create instance of reusable user interface
userInterface = new BankUI( 9 ); // nine textfields
getContentPane().add( userInterface, BorderLayout.CENTER );
// configure button doTask1 for use in this program
SaveAs = userInterface.getSaveAsButton();
SaveAs.setText( "Save as.." );
//////////////////from read
openButton = userInterface.getOpenFileButton();
openButton.setText( "Open File" );
openButton.addActionListener(
// anonymous inner class to handle openButton event
new ActionListener() {
// close file and terminate application
public void actionPerformed( ActionEvent event )
openFile();
} // end anonymous inner class
); // end call to addActionListener
// register window listener for window closing event
addWindowListener(
// anonymous inner class to handle windowClosing event
new WindowAdapter() {
// close file and terminate application
public void windowClosing( WindowEvent event )
if ( input != null )
closeFile();
System.exit( 0 );
} // end anonymous inner class
); // end call to addWindowListener
// get reference to generic task button doTask2 from BankUI
nextButton = userInterface.getDoTask2Button();
nextButton.setText( "Next Record" );
nextButton.setEnabled( false );
// register listener to call readRecord when button pressed
nextButton.addActionListener(
// anonymous inner class to handle nextRecord event
new ActionListener() {
// call readRecord when user clicks nextRecord
public void actionPerformed( ActionEvent event )
readRecord();
} // end anonymous inner class
); // end call to addActionListener
//get reference to generic task button do Task3 from BankUI
// get reference to generic task button doTask3 from BankUI
nextRecordButton = userInterface.getDoTask3Button();
nextRecordButton.setText( "Get Next Record" );
nextRecordButton.setEnabled( false );
// register listener to call readRecord when button pressed
nextRecordButton.addActionListener(
// anonymous inner class to handle nextRecord event
new ActionListener() {
// call readRecord when user clicks nextRecord
public void actionPerformed( ActionEvent event )
getNextRecord();
} // end anonymous inner class
); // end call to addActionListener
///////////from read end
// register listener to call openFile when button pressed
SaveAs.addActionListener(
// anonymous inner class to handle openButton event
new ActionListener() {
// call openFile when button pressed
public void actionPerformed( ActionEvent event )
SaveLocation();
} // end anonymous inner class
); // end call to addActionListener
// configure button doTask2 for use in this program
SaveToFile = userInterface.getSaveStoreToFileButton();
SaveToFile.setText( "Save to store and to file need to split this task up" );
SaveToFile.setEnabled( false ); // disable button
// register listener to call addRecord when button pressed
SaveToFile.addActionListener(
// anonymous inner class to handle enterButton event
new ActionListener() {
// call addRecord when button pressed
public void actionPerformed( ActionEvent event )
addRecord(); // NEED TO SPLIT UP SO DONT DO BOTH
} // end anonymous inner class
); // end call to addActionListener
Exit = userInterface.getExitAndSaveButton();
Exit.setText( "Exit " );
Exit.setEnabled( false ); // disable button
// register listener to call addRecord when button pressed
Exit.addActionListener(
// anonymous inner class to handle enterButton event
new ActionListener() {
// call addRecord when button pressed
public void actionPerformed( ActionEvent event )
addRecord(); // adds record to to file
closeFile(); // closes everything
} // end anonymous inner class
); // end call to addActionListener
// register window listener to handle window closing event
addWindowListener(
// anonymous inner class to handle windowClosing event
new WindowAdapter() {
// add current record in GUI to file, then close file
public void windowClosing( WindowEvent event )
if ( output != null )
addRecord();
closeFile();
} // end anonymous inner class
); // end call to addWindowListener
setSize( 600, 500 );
setVisible( true );
store = new Store(100);
} // end CreateSequentialFile constructor
// allow user to specify file name
////////////////from read
// enable user to select file to open
private void openFile()
// display file dialog so user can select file to open
JFileChooser fileChooser = new JFileChooser();
fileChooser.setFileSelectionMode( JFileChooser.FILES_ONLY );
int result = fileChooser.showOpenDialog( this );
// if user clicked Cancel button on dialog, return
if ( result == JFileChooser.CANCEL_OPTION )
return;
// obtain selected file
File fileName = fileChooser.getSelectedFile();
// display error if file name invalid
if ( fileName == null || fileName.getName().equals( "" ) )
JOptionPane.showMessageDialog( this, "Invalid File Name",
"Invalid File Name", JOptionPane.ERROR_MESSAGE );
else {
// open file
try {
input = new ObjectInputStream(
new FileInputStream( fileName ) );
openButton.setEnabled( false );
nextButton.setEnabled( true );
// process exceptions opening file
catch ( IOException ioException ) {
JOptionPane.showMessageDialog( this, "Error Opening File",
"Error", JOptionPane.ERROR_MESSAGE );
} // end else
} // end method openFile
public void readRecord() // need to merger with next record
Employee record;
// input the values from the file
try {
record = ( Employee ) input.readObject();
employeeList[count++]= record;
store.add(record);/////////ADDS record to Store
store.displayAll();
System.out.println("Count is " + store.getCount());
// create array of Strings to display in GUI
String values[] = {
String.valueOf(record.getName()),
String.valueOf(record.getGender()),
String.valueOf( record.getDateOfBirth()),
String.valueOf( record.getID()),
String.valueOf( record.getStartDate()),
String.valueOf( record.getSalary()),
String.valueOf( record.getAddress()),
String.valueOf( record.getNatInsNo()),
String.valueOf( record.getPhone())
// i added all those bits above split onto one line to look neater
// display record contents
userInterface.setFieldValues( values );
// display message when end-of-file reached
catch ( EOFException endOfFileException ) {
nextButton.setEnabled( false );
nextRecordButton.setEnabled( true );
JOptionPane.showMessageDialog( this, "No more records in file",
"End of File", JOptionPane.ERROR_MESSAGE );
// display error message if class is not found
catch ( ClassNotFoundException classNotFoundException ) {
JOptionPane.showMessageDialog( this, "Unable to create object",
"Class Not Found", JOptionPane.ERROR_MESSAGE );
// display error message if cannot read due to problem with file
catch ( IOException ioException ) {
JOptionPane.showMessageDialog( this,
"Error during read from file",
"Read Error", JOptionPane.ERROR_MESSAGE );
} // end method readRecord
private void getNextRecord()
Employee record = employeeList[next++%count];//cycles throught accounts
//create aray of string to display in GUI
String values[] = {String.valueOf(record.getName()),
String.valueOf(record.getGender()),
String.valueOf( record.getStartDate() ), String.valueOf( record.getAddress()),
String.valueOf( record.getNatInsNo()),
String.valueOf( record.getPhone()),
String.valueOf( record.getID() ),
String.valueOf( record.getDateOfBirth() ),
String.valueOf( record.getSalary() ) };
//display record contents
userInterface.setFieldValues(values);
//display record content
///////////////////////////////////from read end
private void SaveLocation()
// display file dialog, so user can choose file to open
JFileChooser fileChooser = new JFileChooser();
fileChooser.setFileSelectionMode( JFileChooser.FILES_ONLY );
int result = fileChooser.showSaveDialog( this );
// if user clicked Cancel button on dialog, return
if ( result == JFileChooser.CANCEL_OPTION )
return;
File fileName = fileChooser.getSelectedFile(); // get selected file
// display error if invalid
if ( fileName == null || fileName.getName().equals( "" ) )
JOptionPane.showMessageDialog( this, "Invalid File Name",
"Invalid File Name", JOptionPane.ERROR_MESSAGE );
else {
// open file
try {
output = new ObjectOutputStream(
new FileOutputStream( fileName ) );
SaveAs.setEnabled( false );
SaveToFile.setEnabled( true );
Exit.setEnabled( true );
// process exceptions from opening file
catch ( IOException ioException ) {
JOptionPane.showMessageDialog( this, "Error Opening File",
"Error", JOptionPane.ERROR_MESSAGE );
} // end else
} // end method openFile
// close file and terminate application
private void closeFile()
// close file
try {
//you want to cycle through each recordand add them to store here.
int storeSize = store.getCount();
for (int i = 0; i<storeSize;i++)
output.writeObject(store.elementAt(i));
output.close();
input.close();// from read!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
System.exit( 0 );
// process exceptions from closing file
catch( IOException ioException ) {
JOptionPane.showMessageDialog( this, "Error closing file",
"Error", JOptionPane.ERROR_MESSAGE );
System.exit( 1 );
} // end method closeFile
// add record to file
public void addRecord()
int employeeNumber = 0;
String fieldValues[] = userInterface.getFieldValues();
// if account field value is not empty
if ( ! fieldValues[ BankUI.IDNUMBER ].equals( "" ) ) {
// output values to file
try {
employeeNumber = Integer.parseInt(
fieldValues[ BankUI.IDNUMBER ] );
String dob = fieldValues[ BankUI.DOB ];
String[] dateofBirth = dob.split ("-"); // what used to put between number chnage to /
String sDate = fieldValues[ BankUI.START ];
String[] startDate = sDate.split ("-");
String sex = fieldValues[ BankUI.GENDER ];
char gender = (sex.charAt(0)); // check if m or f prob check in employee
if ( employeeNumber >= 0 ) {
/* create new record =String name, char gender, Date dob, String add, String nin, String phone, String id, Date start, float salary*/
record = new Employee(
fieldValues[ BankUI.NAME ],
gender,
new Date( Integer.parseInt(dateofBirth[0]),
Integer.parseInt(dateofBirth[1]),
Integer.parseInt(dateofBirth[2])),
fieldValues[ BankUI.ADDRESS ],
fieldValues[ BankUI.NATINTNO ],
fieldValues[ BankUI.PHONE ],
fieldValues[ BankUI.IDNUMBER ],
new Date( Integer.parseInt(startDate[0]),
Integer.parseInt(startDate[1]),
Integer.parseInt(startDate[2])),
Float.parseFloat( fieldValues[ BankUI.SALARY ] ));
if (!store.isFull())
store.add(record);
else
JOptionPane.showMessageDialog( this, "The Store is full you cannot add\n"+
"anymore employees. \nPlease Save Current File and Create a New File." );
System.out.println("Store full");
store.displayAll();
System.out.println("Count is " + store.getCount());
// output record and flush buffer
//output.writeObject( record );
output.flush();
else
JOptionPane.showMessageDialog( this,
"Account number must be greater than 0",
"Bad account number", JOptionPane.ERROR_MESSAGE );
// clear textfields
userInterface.clearFields();
} // end try
// process invalid account number or balance format
catch ( NumberFormatException formatException ) {
JOptionPane.showMessageDialog( this,
"Bad ID number, Date or Salary", "Invalid Number Format",
JOptionPane.ERROR_MESSAGE );
// process exceptions from file output
catch ( ArrayIndexOutOfBoundsException ArrayException ) {
JOptionPane.showMessageDialog( this, "Error with Start Date or Date of Birth\nPlease enter like: 01-01-2001",
"IO Exception", JOptionPane.ERROR_MESSAGE );
// process exceptions from file output
catch ( IOException ioException ) {
JOptionPane.showMessageDialog( this, "Error writing to file",
"IO Exception", JOptionPane.ERROR_MESSAGE );
closeFile();
} // end if
} // end method addRecord
public static void main( String args[] )
new testing();
} // end class CreateSequentialFileSure you can read and write at the same time. But normally you would be reading from one place and writing to another place.
I rather regret avoiding the OP's earlier post asking how to combine two classes. I looked at the two classes posted and realized the best thing to do was actually to break them into more classes. But I also realized it was going to be a big job explaining why and how, and I just don't have the patience for that sort of thing.
So now we have a Big Ball Of Tar™ and I feel partly responsible. -
How to read and write a string into a txt.file
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counter++;
write_counter_back_to_database(counter);
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As my observation is that, if I have several web request at the same time, I am executing code within single instance of servlet, using different thread. The above method shall work, as different thread web request, are all referring to same "private_static_final_object"
However, my guess is "single instance of servlet" is not guarantee. As after some time span, the previous instance of servlet may destroy, with another new instance of servlet being created.
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(6) Thread B write counter as 1 to database
What I wish is
(1) Thread A read counter from Database as 0
(2) Thread A increment counter to 1
(4) Thread A write counter as 1 to database
(3) Thread B read counter from Database as 1
(5) Thread B increment counter to 2
(6) Thread B write counter as 2 to database
Thanks you.
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I suggest you use local variables (ie, defined within a function), and keep away from static variables. Those local variables are thread safe. If you call functions within functions, its still thread safe. If you read or write to one record in a database using sql, its thread safe (you dont need a transaction). If you read/write to multiple tables and/or records, you probably need a transaction. Servlets are thread safe. You usually dont need the 'synchronized' word anywhere unless you have a function updating/reading a static variable and therefore want to ensure only one user is accessing the static varible at a time. Also do so if you are writing to some resource (such as a file, a variable in applicaton scope, session scope, or resource that everyone uses such as email server). You dont want more than one person at a time to write to it). Note the database is one of of those resources that is handled by transactions rather than the the synchronized keyword (the synchronized keyword is applied to your application only (not other applications that someone is running), whereas the transaction ensures all applications are locked out while you update those records in the database).
By the way, if you have a static variable, you should have one and only one function (synchronized) that updates it that everyone uses. If you have more than one synchronized function, that updates it, its probably not thread safe.
An example of a static variable you would use is a Datasource object (to obtain your database connections). You only need one connection pool in your application and you access it via the datasource variable.
If you're unsure your code is thread safe, you can create two seperate threads that call the same block of functions repeatedly to ensure it works as expected. -
ITunes Library on an Airport Disk? Read and write from multiple Macs?
OK, I've scoured the forums for an answer to this, but haven't found anything definitive. Apologies if I've missed the answer, but here's what I want to know:
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Right now, I am keeping my iTunes library on my iMac and sharing it with the Mac Mini and the powerbook. If anyone wants to add music (or other content) to the library, it has to be through the iMac. Obviously the iMac has to be on for any other computer to access the shared library.
I want to try to make things simpler by having a single "network" iTunes library that all computers to be able to share (read AND write). I envisage having this "iTunes Server" on an external HD connected to my Airport Extreme as an Airport Disk. If I move the entire contents of ~/music/iTunes (including artwork, library files, etc) to this central location, will the three Macs be able to deal with this, ie can multiple computers share an iTunes library database on an airdisk? Will I be able to stream content from this library to all three computers? Will I be able to import new music into the library from any one of the three computers?I am having a very similar problem. I have all of my music saved on a large external disk connected to my airport. I would like to be able to just play what i want from this disk, but i don't like having to download every track i want to listen to. I still want to be able to bring my laptop with me and have some music so i don't want to make this external disk my library folder. Is there a way to play it on my computer similar to a shared library on another computer? Am i asking to much out of apple?
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Read and write a item's value in running Form.
Hi everybody,
Could you help me?
I have a table name QUANTITY(store in Oracle database server), this table have 2 filed: Model name and Quantity
I created a oracle form(Store in oracle application server) to show Quantity. I running this form in a client.
Now i want read and write QUANTITY of one Model to text file in client. It is difficult to me!
Please help me,Try something like this...
PROCEDURE load_data IS
outFile CLIENT_TEXT_IO.FILE_TYPE;
linebuf varchar2(1000);
X1 VARCHAR2(20) := ' ';
X2 VARCHAR2(15);
File_Not_Found EXCEPTION;
cursor c1 is
select col1, col2 from QUANTITY;
BEGIN
outFile := CLIENT_TEXT_IO.FOPEN('c:\tmp\Outputfile.txt','w');
if CLIENT_TEXT_IO.IS_OPEN(outFile) then
open c1;
LOOP
FETCH C1 INTO c1_rec;
EXIT WHEN C1%NOTFOUND;
X1 := c1_rec.col1;
x7 := c1_rec.col2;
linebuf := X1|| ' ' ||X2;
CLIENT_TEXT_IO.put(outFile,linebuf);
CLIENT_TEXT_IO.NEW_LINE(outfile);
END LOOP;
close c1;
end if;
CLIENT_TEXT_IO.FCLOSE(outfile);
END;Hope this helps,
Charan
Edited by: Charan on Oct 2, 2011 4:09 PM -
Alert: Logical disk transfer (reads and writes) latency is too high Resolution state
Hi
We are getting following errors for my 2 virtual servers. We are getting this alert continuously. My setup Windows 2008 R2 SP1 2 node Hyper V cluster. Which is hosted 7 guest OS out of am facing this problem with to guest os. Once this alert started
my backup running slow.
Alert: Logical disk transfer (reads and writes) latency is too high
Source: E:
Path: Servername.domain.com
Last modified by: System
Last modified time: 4/23/2013 4:15:47 PM Alert description: The threshold for the Logical Disk\Avg. Disk sec/Transfer performance counter has been exceeded.
Alert view link: "http://server/OperationsManager?DisplayMode=Pivot&AlertID=%7bca891ba3-e9f2-421f-9994-7b4d6e867b33%7d"
Notification subscription ID generating this message: {F71E01AF-0BE6-8377-7BE5-5CB6F5C037A1}
Reagrds
MaheshHi,
Please see if following helps
Disk transfer (reads and writes) latency is too high
The
threshold for the Logical Disk\Avg. Disk sec/Transfer performance counter has been exceeded
If they are of no help, try asking this question in Operations Manager - General forum since alerts are generated by SCOM.
Regards, Santosh
I do not represent the organisation I work for, all the opinions expressed here are my own.
This posting is provided AS IS with no warranties or guarantees and confers no rights. -
Mac Mini Sever - Public Share - how enable read and write permissions for new remote files
Hi,
this Sunday a friend ask me to help hum with a problem on is Man Mini Server. He has a small office and uses the mini server to share a public folder to all his employees.
Everyone that creates a file, saves it to the public folder at the mini mac.
That problem is that, who creates the file owns it and remains with read-only permissions to everyone else. The owner has to change the file permission in order to the rest of the employees can work on it.
I do not know mac arquitecture, I only work with windows and linux, but i suspect the principles are the same.
We try to create another folder , and share it, but it happens the same. Have you any ideas on what is wrong?
I suspect it has anything to do with de file Sharing at the mini mac, but it has read and write permissions for everyone.
Thanks for your help.signed applet. You aren't going to find any easy way to distribute that policy file to users, and that policy file, if you asked me to put it on my PC, I'd tell you to take a flying leap. That would open any applet to access.
-
Why are my Datasocket OPC reads and writes so slow?
I am creating an application (in LabView 6.1) that has to interface with 15-30 OPC tags (about half and half read and write) on a KepWare OPC server. It seems like the DSC Module would be overkill, but the datasocket write VIs seem to slow the system to a halt at about 6 tags. I saw something about using the legacy datasocket connect VIs, but would I really see a large performance boost from switching?
In the existing code we have, I have seen that even the legacy VIs (our old code uses the older VIs) sometimes grind the system to a halt or lock it up completely if it loses sight of the OPC server. Has anyone else had problems with this?Hi IYUS,
What OPC Server are you using? What methods are you using to communicate? If you are using IAOPC, have you installed the latest patch?
Also, this post is nearly 2 years old. You will probably get more visibility (and more help) if you post your questions in a new thread.
Cheers,
Spex
National Instruments
To the pessimist, the glass is half empty; to the optimist, the glass is half full; to the engineer, the glass is twice as big as it needs to be... -
hi,
can any one tell me how to read and write a file using
actionscript in flex2
regards,
Shah MohamedHi all,
I have tried read and write file using AIR inturn in Flex 3
.I can able to compile it with no errors. But while i try to run
,it throw an error .and the stack trace of the error is below.. Im
in showstopper stage. kindly update me with your suggesstions .
Expecting the reply..
Thanks in advance
VerifyError: Error #1014: Class flash.filesystem::FileStream
could not
be found.
at [newclass]
at
global$init()[D:\dev\nexxus\metasoft\iGallery;com\metasoft\flex\util;MetasoftUtils.as:8]
at
com.metasoft.flex.server::MetasoftServer/getUserInfo()[D:\dev\nexxus\metasoft\iGallery;co m\metasoft\flex\server;MetasoftServer.as:146]
at
com.metasoft.flex.server::MetasoftServer/isValidUser()[D:\dev\nexxus\metasoft\iGallery;co m\metasoft\flex\server;MetasoftServer.as:17]
at
components::Login/components:Login::login()[D:\dev\nexxus\metasoft\iGallery;components;Lo gin.mxml:14]
at
components::Login/__loginButton_click()[D:\dev\nexxus\metasoft\iGallery;components;Login. mxml:102]
at [mouseEvent]
regards,
Shah Mohamed.N -
JSP read and write data in MS-SQL database
I am new to JSP. I need to write JSP page to read and write data in MS-SQL Database. I wonder if it is different from other database. I couldn't find useful pointers in the web. Please advise. Thanks!!
Sure, SQL Server is different from Oracle is different from MySQL is different from...
But all of them can be accessed using JDBC:
http://java.sun.com/docs/books/tutorial/jdbc/
Maybe you should learn about that for starters.
You can use SQL tags from JSTL in your JSPs. I'd recommend JSTL highly. No scriptlet code that way. - MOD
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