Servlets :: Gmail - Webpage Will Automatically Update Whenever New Mail Arrives
Apr 12, 2014
So, I've seen in google mail that the webpage will automatically update whenever a new mail arrives without the user manually refresh the gmail webpage. I'm curious how this is done. Is it polling? or is it something else? how is this done in java web app?
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Aug 22, 2014
I have two java classes, the first is a Servlet that register users access to the same servlet, the second class implements a ServletContextListener and update the HashMap removing the expired access.I need this Application to obtain a list of online users on an android app, this is the code:
import java.util.HashMap;
import java.util.Timer;
import java.util.TimerTask;
import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
[code]....
at the moment the application doesn't work fine, because the update doens't happen and after few minutes a ConcurrentModificationException occurs...
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Mar 19, 2014
Is it possible to write a program that changes the value of a certain variable when a certain predefined time arrives, without running the same loop over and over again (and stucking the computer)?
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Oct 23, 2014
i want to log in to my gmail account, filter spam and delete them.But i want to delete only spam from a particular sender,How can i delete all messages from this sender only?The code i found is here but it.s not deleting any messages:
Java Code: import java.util.Properties;
import javax.mail.Address;
import javax.mail.Flags;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.NoSuchProviderException;
import javax.mail.Session;
import javax.mail.Store;
[code]....
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Apr 3, 2014
I'm working on a application in Java which needs to be able to send and retrieve Gmails, and depending on the received information possibly store some of it. It can already send Gmails properly, and I've been able to make the program look for undread Gmails and start reading them. I can read stuff like the subject, the date it was sent and retrieved, who sent it and the like, but for some reason retrieving the actual information within the Gmail seems to be really difficult. This is the current code I'm using to retrieve a Gmail:
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
[Code]....
Is just another failed attempt, it too just prints it to the console and doesn't return any visible value at all that I can use. It also doesn't filter out all the non-interesting stuff unlike the example above it.
I've searched around a lot and seen lots of solutions presented, but either I didn't get them to work or they simply printed it to the console, I'm sure this is a fairly easy thing to and probably often asked but, I'm stuck all the same.
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Feb 24, 2014
How can i make interactive chat like GMAIL, FACEBOOK.
Can it possible .. using ajax that frequently updating a portion/part/ chat box.
If we do in this way, I am sure our server will be overloaded.
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Feb 9, 2015
I am trying to create an array list without using the built in arrayList class that java has. I need to start the array being empty with a length of 5. I then add objects to the array. I want to check if the array is full and if not add a value to the next empty space. Once the array is full I then need to create a second array that starts empty and with the length of the first array + 1.
The contents of the first array are then copied into the new array without using the built in copy classes java has and then the new array ends up containing 5 elements and one null space the first time round. The first array is then overwritten with the new array containing the 5 elements and the null space. The process then starts again adding values until the array is full which will be 1 more value then recreating the second array empty and the length of the first array + 1. This is my attempt at creating this but I have run into multiple problems where I get only the last value I added and the rest of the values are null:
public class MyArrayList {
public Object arrayList[];
public MyArrayList(Object[] arrayList) {
this.arrayList = arrayList;
[code]...
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May 14, 2014
I have a strange behaviour when trying to update a bean. Here is the edit page:
<h3>Edit Post</h3>
<div class="row">
<h:form>
<div class="small-3 columns">
<label for="right-label" class="right inline">Title</label>
[Code] ....
Here is the bean class:
package com.airial.controllers;
import com.airial.domain.Post;
import com.airial.service.PostService;
import com.ocpsoft.pretty.faces.annotation.URLMapping;
import com.ocpsoft.pretty.faces.annotation.URLMappings;
import org.springframework.beans.factory.annotation.Autowired;
[code]...
postToUpdatet is always NULL. Why the title property is not binded ? What is wrong here ?
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Jan 20, 2015
I am trying to run a java app from a webpage.
The java app is written with Netbeans.
Heres my files:
Java main class:
Java Code: package Classes;
import java.applet.Applet;
[Code].....
You can test the page here: Test page for launching the application via JNLP
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Jun 17, 2014
As my requirement I am storing the image link in database and through that link I need to access the image in the webpage. For this, I am storing images in my workspace. But the problem is, since my workspace is in C drive, I dont want to store those images in workspace because of the space matter. Can I store those images outside C drive and save the link in database? After that how can I access those in webpage?
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Apr 1, 2014
I am trying to develop a live score webpage using ONLY JSP.
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Feb 20, 2014
Embedding an executable .jar file on a webpage. I am not a programmer and we use Blackboard Publish to package our Blackboard sessions into a standalone executable .JAR file which gives the user the full Blackboard experience. We want to embed this file on our webpage, so I did some research and I understand I have to use a Japplet (?). I have tried putting the basic (J)applet code I found on the web (modified of course) onto the webpage (see code below) but I get a 'ClassNotFoundException' error. I don't have the ability to define the files that are in the .JAR created by Blackboard Publish. How I would go about embedding this file? I can look at the files within the .jar with Winzip but there seem to be loads of .class files and I am unclear which one my webpage is trying to find!
<APPLET CODEBASE="/Blackboard/" ARCHIVE="test.jar" CODE=test.class WIDTH=140 HEIGHT=45>
<(J)APPLET>
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Jan 13, 2015
import java.io.FileInputStream;
import java.io.IOException;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
[Code]...
This is the excel sheet which is to be sorted and here I am stuck because I need to search "Type" if the country column from excel is uk or us.I am new to java and apache poi . I am stuck here . I have written the above code and everytime it gives me "single" as output and keep on searching that in google.
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Sep 11, 2014
I am working in netbeans.
My task is that i want to read text from a webpage, [URL] ...., in my server that shows only the following inside brackets
{
"VERSION": "2.00.000"
}
I am using a js that has all the necessary functions of the project, the function for the button that will show a modal and currently is static, is like that
var imgAbout = $('#topright-menu ul.menu-divmenu > li > a > img[src$="about.png"]');
imgAbout.click(function(e) {
e.preventDefault();
var modal = (self.modal());
var content = "Version: 2.00.000 <br><br>" +
[Code] ....
I need to understand the mechanism that will accomplish such a task,, in general how can i do that ??,,
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Dec 22, 2014
This is the program i tried
package com.readAlerts;
import java.util.Properties;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
[Code]...
But I am getting below error:
Exception in thread "main" java.lang.RuntimeException: javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 587;
nested exception is:
java.net.SocketException: Permission denied: connect
at com.readAlerts.SendEmailUsingGMailSMTP.main(SendEmailUsingGMailSMTP.java:63)
Caused by: javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 587;
nested exception is:
[Code]...
Tried every permutation and combination but all leading to this same error.
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Jan 23, 2014
I want to send email from my jsp file .. And I have a html code which contains form and inputs. How can I send the email? And I am using netbeans ..
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Mar 6, 2014
I am unable to run this java mail code, whats the error!!
public class Class1 {
final String senderEmailID = "from@gmail.com";
final String senderPassword = "password";
final String emailSMTPserver = "smtp.gmail.com";
final String emailServerPort = "465";
String receiverEmailID = null;
[Code] ...
I get an error as this
javax.mail.MessagingException: Could not connect to SMTP host: smtp.gmail.com, port: 465, response: -1
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1949)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:654)
at javax.mail.Service.connect(Service.java:317)
[Code] ....
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Jul 3, 2013
I have few values for X and Y axis from the Oracle DB table. SO is there any java technology available to display the values in the form of graph with the valuesfrom the table along X and Y axis and represent it in any form of graph , which we could chose.
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Jul 1, 2014
I am getting Web Page Expired error while clicking the back button of the browser, after submitting a form. The form method is POST. ( I have to keep it that way). I tried this code
<%session.setHeader("Cache-Control", "no-cache");
response.setHeader("Cache-Control", "no-store");
response.setDateHeader("Expires", 0);
response.setHeader("Pragma", "no-cache");
%>
In my jsp. Still it is not working. I also tried
<script language="JavaScript" type="text/javascript">
window.history.forward(1);
</script>
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Mar 24, 2015
I want to develop a dynamic webpage (using JSP & tomcat hosted on windows server) which will connect to unix server and on button "Show Files" click on dynamic webpage it should display all the files present in the unix server.
The button click should display the files which i can see when i run "ls -ltr" in unix server home directory.
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Mar 6, 2014
Java Code:
import java.util.Properties;
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
[Code] ....
Here is my sample email in java i am enable to send mail .....
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Feb 4, 2014
This is the code for reading and sending the mail
package com.abhi;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
[Code] ....
Its showing error like..
BIFFVIEWER REQUIRES A FILENAME***
java.lang.NullPointerException
at java.io.FileInputStream.<init>(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
at org.apache.poi.hssf.dev.BiffViewer.run(BiffViewer. java:68)
at org.apache.poi.hssf.dev.BiffViewer.main(BiffViewer .java:649)
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Jun 13, 2014
I am facing an issue with my java program, it is returning/storing file name with some junk characters i,e the file name with some '?','=' and '_'. Below is the example of file names.
Ex : abc.doc
ab=?Windows-1252?Q?=c.do?c
=?Windows-1252?Q? (prefixed with space)
=?utf-8?Q? (prefixed with space)
=?iso-8859-1?Q? (prefixed with space)
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Feb 5, 2011
How to Expire the sending link to a mail after particular period of time
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Mar 17, 2014
My Mail reading functionality is not working properly using POP3 protocol. Actually I can read the mail but the status is not changed as read.
Java Code:
public static void main(String arg[]) throws MessagingException, IOException{
String host = "pop.test.net";
String user = "test@beq.com";
String password = "abc10";
String protocol = "pop3";
[code]....
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Mar 20, 2014
I am reading mail by using pop3 in java mail. In outlook I found we can leave the copy of mail in server side after reading. Shall we do that process in java mail ?
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