FTP From One To Another Server Using Java

May 10, 2013

I am new to FTP java api. I wanted to do a Ftp transfer from one server to another server using java. I have the connection details for both servers. I found a link with some code but when I try to execute it it throws an error "Couldn't initiate transfer. Check that filenames are valid."

This is the link--> [URL] ....

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JSF :: XHTML On One Server Can Talk To Managed-bean On Other Server (different Machine)?

Jul 27, 2014

I am developing a web application using JSF-2.0 on weblogic 10.3.6. I am using Facelets as VDL. I have 5 different machine. They are different according to their OS and their geographical location. On my first xhtml page server (machine) is decided. Then on next page file upload and rest of processing takes place. My restriction is that SSO configuration can be done on only one machine.

So I am restricted to using xhtml files from only my primary server where SSO configuration is done. But I have to connect to servlets or managed-bean of different machine as requests are machine specific and file needs to be uploaded to those machines for processing. So I cannot use redirectUrl as I need to be only on one machine. Is it possible that xhtml on one server can talk to managed-bean on other server(different machine)?.

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The goal is as follows: Write a UDP 'CompressionServer' that will take input from the user until it sees a "magic string" at which time it will create a compressed and uncompressed version of the file in the file system.

So, I need to integrate the following "Zip" code in to my UDP server code (which already creates the uncompressed file)... That is where I am stuck at now. My first few attempts had the Zip code after I write to "fout" but that failed to create a ZIP file.

I guess the main point here is what are the key pieces of the ZIP code that I should include and what would be the best spot to place them in my server code...

Zip Code:

import java.io.*;
import java.util.zip.*;

public class Zip {
static final int BUFFER = 2048;
public static void main (String argv[]) {
try {
String fileInput = argv[0];
String fileOutput = argv[1];

[Code] ....

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May 29, 2014

The server was working normally but now I'm seeing these errors

Server Side:
java.lang.ClassNotFoundException : PacoteTradugo.Mensageiro
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[Code].....

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I have a Javascript COMserver code :

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[Code] ....

But, now i would like to move the javascript code into java application base system. I try :

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but it having error and continue step how i do the checking see the Comserver is login or not?

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Communicating Between Client And Server Sockets In Java

Apr 3, 2014

I'm working on an assignment right now which involves passing a variable series of numbers to the Server to be sorted into the correct order and returned to the client.

So far I have it connecting to the server and asking for my numbers, and I am entering each number and pressing return, and it is accepting each number individually.

One (smaller I think) problem i'm having is with the client code, specifically the while loop.. I've tried to code it so that when I enter a full stop ('.') the program will stop asking me for more numbers and move on to sending them to the server.. but instead it just crashes giving an error.. heres an example

"Enter a number: 1
Enter a number: 3
Enter a number: 2
Enter a number: 1.
java.lang.NumberFormatException: For input string: "1."
at java.lang.NumberFormatException.forInputString(Num berFormatException.java:65)

[Code] ....

Here's the client code in full

package numberSortprogram;
import java.io.*;
import java.net.ServerSocket;
public class NumSortClient {
public static void main(String[] args) {
InputStreamReader is = new InputStreamReader(System.in);
[Code] ....

The big problem that I have is figuring out how to send the sorted array back to the client..

So, what im trying to get to happen is-

-Client is asked to enter numbers
-Client enters series of numbers into an array
-Array is converted to a string and sent to the server
-String is then split into an array of strings and sorted using compareTo (don't know if this is the best way?)
-Sorted array is sent back to client and displayed.

fyi this is making use of streamsockets..

All of the rest of my code is below:

package numberSortprogram;
import java.io.IOException;
import java.net.*;
import java.util.regex.PatternSyntaxException;
public class NumSortServer {
public static void main(String[] args) {
int serverPort = 4444; // default port
if (args.length == 1 )

[Code] .....

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Connect Sql Server 2008 R2 To Java Using Eclipse?

Jan 10, 2015

it will shows this kind of error

com.microsoft.sqlserver.jdbc.SQLServerException: The connection to the host localhost, named instance sqlexpress has failed. Error: "java.net.SocketTimeoutException: Receive timed out". Verify the server and instance names, check that no firewall is blocking UDP traffic to port 1434, and for SQL Server 2005 or later verify that the SQL Server Browser Service is running on the host.
at com.microsoft.sqlserver.jdbc.SQLServerException.ma keFromDriverError(SQLServerException.java:171)
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at com.microsoft.sqlserver.jdbc.SQLServerConnection.p rimaryPermissionCheck(SQLServerConnection.java:937 )
at com.microsoft.sqlserver.jdbc.SQLServerConnection.l ogin(SQLServerConnection.java:800)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.c onnect(SQLServerConnection.java:700)
at com.microsoft.sqlserver.jdbc.SQLServerDriver.conne ct(SQLServerDriver.java:842)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at jdbc.JdbcSQLServerConnection.main(JdbcSQLServerCon nection.java:25)

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Nov 25, 2014

I keep getting this error when compiling the code . I think its got to do with the Tomcat server not working well with the textpad app...I'm using windows 8.1(for the course I have to use Textpad 4.7.3 & Apache Tomcat 5.5.7 Server) :

C:UsersReignDownloadsIntec - Codecourse technology59850dChapter 12WorkWebStocks.java:20: package javax.servlet does not exist
import javax.servlet.*;
^
C:UsersReignDownloadsIntec - Codecourse technology59850dChapter 12WorkWebStocks.java:21: package javax.servlet.http does not exist
import javax.servlet.http.*;

[code]....

tom cat is running as a service it shows started in the tom cat app and as a running service in windows services !!!

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I am currently writing two java classes (client and server). The client takes an input number form keyboard and sends it to the server. The server then multiplies this number by two and sends it back to the client. The numbers should also be printed to screen along the way, for example if I input the number 3 I should get

"From Client: 3" "From Server: 6"

They should continuously do this unless a negative number is received by the client, say for example the number -3 is sent to the server and it returns -6.

The code I have for the two classes so far is:

import java.io.*;
import java.net.*;
import java.nio.ByteBuffer;
import java.util.Scanner;
class Client {
public static void main(String args[]) throws Exception {
DatagramSocket clientSocket = new DatagramSocket();

[Code] .....

Currently, when I run the program all I get is an output of the number first entered. I am aware it requires a loop but I don't know where and what the condition should be.

Also if I wanted to adapt this so that it would take the integer from client and subtract two at the server and return to client who sends back to server to keep subtracting two unless it reaches a negative number at which point the client will terminate the program - how might I do this.

I do realise there needs to be a while loop in the above code, but I wanted to test it sent the number from client to server and its not doing it. All I get is a print screen of 'enter number' and then the number I enter.

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Oct 10, 2014

Code structure :

Server : Java Servlet
Client : Simple JSP
Communication : Server Sent Events every 1 second
Here is the problem.

My code needed the server to send updates every one second to the client as stated above. Hence, I added a while loop with a sleep of 1000 milliseconds in the servlet code as shown below. The following strange behavior is observed:

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@Override
protected void doGet(HttpServletRequest req, HttpServletResponse res)
throws IOException, ServletException {
PrintWriter writer = null;
try{

[Code]......

This server behavior is much unexpected. Am I writing the server side code wrong? I have looked around a lot and only found while loop method for modifying the server update interval. Is there any other method which I am missing?

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public class SimpleWebServer extends Thread {
public static final String VERSION = "SimpleWebServer";
public static final Hashtable MIME_TYPES = new Hashtable();
static {
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[Code] .....

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Other than this any configurations are required. I used weblogic 10.3.5.

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I'm using this methodology for Java connection between client and server, the server allows the user to stay connected while it is sending messages, but if you stay an average time of 5 minutes without send anything it is disconnected, I need to increase that time to about 30 minutes or disable this disconnection for inactivity.

Settings:
Netbeans 8.0
Windows Seven 64 Bits Ultimante

The following code:

package redes;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Font;
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[Code] .....

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Java Server Disconnects Inactive Users After 5 Minutes

May 19, 2014

I'm using this methodology for Java connection between client and server, I copied it from the internet, but the server allows the user to stay connected while it is sending messages, but if you stay an average time of 5 minutes without send anything it is disconnected, I need to increase that time to about 30 minutes or disable this disconnection for inactivity.

Settings:
Netbeans 8.0
Windows Seven 64 Bits Ultimante

The following code:

package redes;

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
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[Code] ....

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I'm new to Java. I need to run a SQL server stored procedure(that creates a unique job number) from Oracle SQL Developer (JDBC) in Java. The same Java code will be used in Applescript to run the SP. I found a code snippet online with the similar requirement. How to embed my SP in below code snippet?  Below is the Stored Procedure and Code Snippet:
 
SP
 
EXEC Int.dbo.GetNewJobNumber '6852', 'Test Job', 'Manual SQL Query'
6852- CustomerCode,
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import java.sql.Connection;
import java.sql.DriverManager;
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[Code] ....

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1)get db connection
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At our company we run a third-party Java-based GUI application on one of our Linux server machine, displaying the application to our local Windows work stations using the Cygwin X Server.We noticed a few problems with a new version of this application and was able to narrow it down to the following conditions:

1. Java Swing application running on a UNIX host;
2. Java used is 1.6 (problem not noticed when using Java 1.5)
3. Displaying to Cygwin X server (I've heard other windows-based X servers have the same issue, but I don't have access to any others at this time).

If we run the application natively on Windows, I'm told if the application runs on the Linux host and displays natively to that machine's display there are no problems (although I'm not able to verify this myself).The problems are:

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2. Any attempt to drag the window to a different location on the display seems to work, but as soon as you let go of the drag, the window snaps back to the original location. This only happens the first time you try to move each window.
3. Drop-down controls (JComboBox, for example) just close back up as soon as you click on them. If you click and drag the mouse to attempt to make a selection, no selection can be made.

Are these known problems using 1.6 on UNIX displaying to Windows-based X Servers?

The only real problem is number 3. I expect that if I put more work into the window placement, I should be able to get past number 1. Number 2 is just a minor annoyance.The following is a simple Java Swing application which when run in the correct environment will exhibit the problems.

import java.awt.EventQueue;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

[code]....

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