Most voted "web-application" questions
In computing, web applications are generally computer systems designed for use from a browser, via the Internet, or applications developed using web technologies such as HTML, Javascript, and CSS. Can be run from an HTTP Web Host server or locally, on the user’s device.
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answers96
viewsaside inside the header
Hi, I was wondering if it’s semantic to use the tag <aside></aside> inside the head in a menu that is fixed in the header of the page next to the logo of the site, in my conclusion I…
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answers199
viewsHow to show Options (HTML) with database elements
Hello, I want to do the following: I want the elements that are registered in the database to appear within a "Select - Option (FORM - HTML)". Ex: <body> <?php include("conexa.php"); $id =…
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answers61
viewsAjax function repeats on the page depending on the number of results returned from the query, what can it be?
Good morning the/ I am working on a Grails project that uses Javascript to perform the search (both by category and by text) and item pagination. However, after a few searches per category, the…
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answer25
viewsRender html for multiple folders on the server
I am looking for an implementation that allows me to publish the same html on several domains of my hosting. My goal is to centralize control of it in just one application. I would like to know if…
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answer75
viewsInformation from an API in your web application - Flask Python
I’m a beginner in python and I’m venturing into flask because I thought learning better than Django. So excuse my ignorance of what I’m going to ask or if my code is wrong, more like I do to take…
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answer495
viewsTarget Unreachable, Identifier [usuarioMBean] resolved to null
I have a problem trying to log in to my java web application. As you can see below, there is the stacktrace of the HTTP Status 500 - Internal Server Error error. I’ve tried a few things, such as…
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answer105
viewsHibernate + JPA 5 - Java Web
I’m in need of some help in the following problem. When running my web java project on Glassfish Hibernate on every run try to recreate my tables. Minha Entity. @Entity @Table(name = "Estados")…
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answer119
viewsAnd in what context can the use of JSON be advantageous compared to the use of XML (in web applications)?
I have this question in a simulated test. Besides the ease of writing the Json, and the fact that it is well oriented to objects, what could be the advantages? The topic: Why and when to use XML…
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answers33
viewsWrong output, I put a valid password and does not work
return: string 'invalid password, only letters and are accepted numbers' (length=55) class Validapass { public function setValidapass($pass) { if (strlen($pass)<1) return 'escreva a password';…
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answer44
viewsFirebase Deploy displays 'waiting for Apis' message to enable
Talk guys, I’m doing my first deployment on Firebase, and I came across this beautiful. Unfortunately I found nothing on the interwebs about, and I turn to you as always, there is something I can do…
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answer206
viewsAlert script does not work
I have a perfectly functioning file upload code, but Alert in Else condition is not only working IF Alert. Follows the code: if(isset($_FILES['allfiles'])){//verifica o input file, caso estiver…
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answers91
viewsCache Storage with Python
I’m trying to use WPA in a Flask app. I wonder if it is possible with Flask or Python to store my pages in the browser’s Cache Storage? From what I’ve seen so far I’ll have to use javascript, but…
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answer1075
viewsHow to call a JS function by passing parameter as soon as the page is loaded?
I have to call a function in my JS by passing as parameter an array, when the page is loaded. I can do it using one p:commandButton, where here: actionListener="#{rotaEntregaBean.gerarMapa()}" i run…
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answer153
viewsHow to configure multiple systems in a domain?
I have domain www.meusite.com.br I would like to host several systems in this domain. So: www.meusite.com.br/system1 www.meusite.com.br/system2 www.meusite.com.br/sistema3 I use virtualhost like…
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answer412
viewsAfter using . innerHTML to fill a DIV, how to clear that div with another function?
I have the following code, var resultado; var numero; var tamanhoNumero; var i=0; function calcular(){ numero = document.form.numero.value; console.log(numero); tamanhoNumero = numero.length;…
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answer55
viewsErrors in Django server validation?
I am putting the runserver Manage.py and gives these errors in the folder of the site packges. It has happened to you?…
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answer487
viewsAngle inside a Google ray maps
I have a project using google maps, where I receive the latlng information (which will create a marker in this location), as well as radius and azimuth, knowing that the angle will always be 60°.…
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answer352
viewsFirebase with Javascript - Get the Child title from the database
Good people, I need to capture with javascript the name of Childs 10th of 2017 and 11de2017 from the following image database: Initially I tried as follows: var datasWO =…
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answers844
viewsHow to access Virtual Host from another pc on the same network
I want to access my site that is in #PC1 by mobile or #PC2, but I can only access it by the computer itself where it is, and if I try to enter from another computer only works if I put the IP of my…
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answer90
viewsJavascript - How to "block" access to a website and unlock it if the user likes a particular facebook page or waits a certain time?
The idea is to create a div within the entire body of the site for the user to view when entering, so it would have something like "Like the page to enter now or wait 30 seconds". The part of time…
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answers64
viewsI need to get the ID of one of the elements inside a combobox
I have the following X path : //*[@id="selectDashboard"] inside that has some ID’s that would be certain Dashboard s, how do I catch these guys inside the Xpath? Dashboard HTML code with an ID…
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answer72
viewsHow to fetch Phpmyadmin data to display on screen using Drupal 8?
I created a table on phpMyAdmin with some acronyms I use at work, and I need to throw this data into the content of a page I created. How would I do that? I’m working with DRUPAL 8.…
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answer92
viewsCint formatting in ASP Classic
Good Afternoon to you... Guys, I have a question in formatting... in my table, I have a column with nchar data(4) (before was nvarchar(4), but gave anyway), in the form users choose in a select to…
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answer112
viewsIs there a list of objects when sending requests in html?
I’m developing a small web project in python(flask) for my own learning and came across something that I had never faced before. I have a registration form where the fields of an information are…
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answer50
viewsSend a command without updating the page
I am developing a web application using Playframework, and I have a problem when clicking the command I would like to display an Alert and not redirect the page as it is doing, redirecting to a…
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answer169
viewsGenerate notification on the web platform every time a new form arrives
I am developing two applications one web (service) and another mobile (consumes the service), in apk the user send Formularies to the web application, hence I would like to create a kind of…
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answer79
viewsWhat happens internally when we use request.getRequestDispatcher?
When we use the request.getRequestDispatcher() he does the forwarding of the request for another Let to be met (correct?). The question I wanted to know is: internally, it does this invocation (I…
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answers30
viewsHow to migrate TXT file to Webservice?
Good staff I have this code: public static string filePath = Path.GetTempPath(); public static void ImportFile(string path, string fileToRead) { if (!File.Exists(path)) File.Create(path).Close();…
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answer953
viewsHow to make Ajax requests in Java
Good Morning I’m developing a web application where I need something simple: when the user selects a state in a Combobox, the system shall update another Combobox with all cities. I am programmer .…
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answer76
viewsParser error in my application
Good evening guys, I’m trying to run my application but this Parser Error appears. I’ve already entered the webforms of Vendor to see if I find any error in the code but nothing, compile the project…
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answers68
viewsError executing project in Tomcat
Hello folks I’m trying to run a Javaweb project on Tomcat, but when I run it gives this error: HTTP Status 404 - /Drugstore/faces/templates/modelSystem.xhtml type Status report message…
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answer59
viewsList of PHP arrays
I have an array with several arrays inside Ex: $menus = [ [0] => [ 'menu' => [ 'href' => '/product', 'menu' => 'Produtos' ] ], [1] => [ 'menu' => [ 'href' => '/category', 'menu'…
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answer793
viewsNoreversematch error in Django
Hello! Studying on Django and developing in this framework, I came across the following error: Noreversematch at / Reverse for 'displayURL' with Arguments '('',)' not found. 1 Pattern(s) tried:…
python python-3.x web-application django django-templatesasked 6 years, 10 months ago Thiago Benine 95 -
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answer24
viewsHow to access the Object window from another page
I am making a request via Ajax, I can capture the html, but I wanted to have access to the Object window of the page he made the request, this is possible? Example as I am using.…
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answers22
viewsSearching Sqlite database data with php
I’m trying to get the name of my Session, and search the database for the data of those who have this name, but echo returns absolutely nothing. $nome = $_SESSION["Aluno"]; $results =…
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answers278
viewsAssign multiple array to a variable dynamically
Hello, I need to assign several array to a single variable, their value will all be in sequence in this variable. Ex.: $variavel = $array[0] . $array[1] . $array[2] . $array[3] . $array[4]; echo…
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answer251
viewsJquery validate with type button
Hello, I have a form that uses direct javascript to send the data, and its type is button. <button type="button" id="login_submit_patient" class="btn btn-focus m-btn m-btn--pill m-btn--custom…
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answer128
viewsRemove login menu? (Angularjs and UI router)
Good afternoon, I am participating in a project and I am using Angularjs and UI-router, much of it is already done, but I do not know how to remove the login menu, I would like it to appear only…
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answer2013
viewsOpen link in another HTML browser
Good morning, everyone ! Next, I have a very simple HTML code, where I have an image linked to a link from a local application in the company (the application is web) or when I click on the image…
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answer681
viewsHow to fill a Dropdownliste with ASP MVC
Good afternoon, as I can fill a dropdown with data from a database using pure Ado.net (code) and without using Entity framework? I have two tables in my bank that relate. First I must register a…
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answer46
viewsCommandbutton does not register in SQL
I’m having trouble with my code, when I register a new vehicle, it says that the vehicle is not being instantiated and is returning null. Follow my settings: LAYER DAO: public void adicionar(Veiculo…
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answer287
viewsUploading images with added element in the image
Hello I need to upload where, in the image, the client can add a visual element to mark something. I’ll need something via javascript to do the visual interaction before uploading(simplest part).…
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answer363
viewsPython error In Flask framework import
after installing python and declaring environment variables, creating a page and trying to run by Command Prompt sends the following error : Traceback (most recent call last): File "app.py", line 1,…
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answers16136
viewsPrint a Javascript variable in Input html
<script> function Sumar() { var n7 = document.getElementById('txtN7').value; /*Fator tempo*/ var n8 = n7.replace(',','.'); var cem = (n8)/4; /*Calculo de fator*/ var n1 =…
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answer111
viewsAJAX/PHP pass $_GET and $_POST?
Good evening everyone, I have a PHP script that creates a table in which on this page is run an ajax script and you can see in real time who is in the database... in this table I have a delete…
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answer72
viewsCreate mask to accept only links containing HTTP/HTTPS - Java JSF
I need to create a field input where the user will place a link, but this field can only accept links that contain http:// or https:// at first. There is a way to do a validation in Javascript or…
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answers304
viewsJasper report only works in the local application, does not work on the Web Server
My print report is only working in the local application, using Hibernate connection, when I try to run on the server does not work due to lack of connection to the database, how can I use a…
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answer62
viewsHow to make a date Slug?
I’m trying to add a Slug that converts the date to a tip that html accepts, but I don’t know how to make it work. on the models.py part class Por_dia(models.Model): pedidos =…
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answer41
viewsWeb service for java desktop
I have a question. How is the request made for a php page using java desktop? Should I create another project for java web?
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answers68
viewsActionresult Create error
I’m with a exception, in the method of creating an object with a foreign key, db.SaveChanges() with the following message: Dbupdateexception was unhandled by user code. [HttpPost]…