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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answer355
viewsConfigure button to open browser console (Google Chrome)
Good morning guys, my question today is how can I set up a button on a web page to open the console (for example, Chrome uses the Ctrl+Shift+I button combination). This code has to be developed…
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answer1792
viewsCarousel in the material-ui
How to do the carousel of images in the material-ui? I’m using this library along with React for front-end.
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answers1595
viewsHow to pass code (id) through my viwer using Thymeleaf and spring mvc for the controller?
My entity: package local.demo.models; import java.io.Serializable; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import…
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answer95
viewsAuthorize AJAX in Laravel’s Register.blade.php form
I am using Laravel methods to register users, but I would like to use Javascript and Ajax events in the form to add specific information according to the information selected in the city combobox. I…
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answer618
viewsHow to perform a Migration in Laravel, without excluding the other tables
I’m new to both Laravel and Stack, recently I’m building a system and in the process I forgot to put a Migration. Usually I put the remote php artisan migrate:refresh, however all the data that were…
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answer20
viewsHow to achieve a web table optimized for displaying about 100 thousand data
I have a service to do and I need a table optimized to work with large amount of data, about 100 thousand Rows at least... In which the person is typing and filtering the data We have some but it…
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answer77
viewsPopulate html select with database values
Good morning, I’m a beginner in php and I’m creating a personal project to register people. I have a screen that lists all users and when clicking change user, it returns the values of the user in…
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answers43
viewsProblems with Xampp
I just did the installation of xampp and typing, in the terminal: $ sudo /opt/lampp/lampp start Some problems appear, follow the terminal image This command below was not I who typed, appears alone:…
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answers175
viewshelp with listview Django
I need help picking up the values of an object in a list view class Compraslist(LoginRequiredMixin, ListView): model = Solicitacao template_name = 'compraslist.html' def get_context_data(self,…
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answer56
viewsAngular Directives - ng-repeat
I have a project with C# Web and define that would use Angularjs, to recover the data from the Database. The query is made in the database normally the object is recovered in the javascript of the…
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answer98
viewsCss only applies on one page, using Spring MVC
Hello, I’m doing a project using Spring MVC I’m applying a css to the main page and it’s all right. <link href="${contextPath}resources/css/reset.css" rel="stylesheet" type="text/css"…
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answer64
viewsIs it possible to migrate a web2py system to Django by maintaining the same database?
It is possible to migrate a web system in production made in web2py to a redone in Django, maintaining the same database? I have a system made in web2py (in production) and need to redo it in…
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answers26
viewshttprequest with Curl in C returning values
Hello to all who are reading. I am trying to create a code from a simple file md5 hash validation with my web server. Basically I want to send the hash and if it is the same registered in my web…
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answers27
viewsWhat to do with the authentication token when it arrives at the front?
I’m developing a site with Laravel on the server (API) and angular on the front. To authenticate a user in the system, I recover the credentials (email and password) and, if the user exists and the…
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answers115
viewsHow do I call two models in one view?
Good morning people, I’m new to Asp so my knowledge is very low, could you help me with this question? I have a query view that already has a "BOOK" model, and in this same view I intend to leave a…
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answers211
viewsBlank pages - wamp server
Hello! The day before yesterday my Wamp Server started a strange bug where all the pages of the project, including phpmyadmin, went blank. No mistake, white only. What I tried to see if it solved:…
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answer53
viewsPass several attributes on Django
My question is as follows. I am starting my studies in Jango and find a problem. I have a function in my view with the following excerpt def saldo_total(request): receitas =…
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answer90
viewsGeneralize a Javascript dropdown function?
Hello, I’m having a certain difficulty to generalize a dropdown function, I imagine I’m doing something very wrong, I searched on forums and did not find the answer so I’ll open this topic. My code…
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answer1822
viewsWrite number typed in full in JS
I have a college job to do where you ask the user to enter a number between 0 and 999 and the algorithm must print the entered value in full. I was asking the teacher for help today and he told me…
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answer76
viewsPass received server data to Client Javascript
Suppose I have the following page made in HTML that shows the name {{name}} and data {{ date}} both information came from the server: <h1>Seu nome é {{name}} </h1> <h1> A data de…
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answer161
viewsDjango Runserver
Greetings Galera, Ando having a problem with the Django framework: initially could climb the server normally, but after a while, when running Manage.py, the server does not "go up" and the command…
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answer356
viewsDjango login view only works with users created in createsuperuser
I’ve been racking my brain with this problem for a couple of days. I’m doing a project for college and created a custom user, I can add users normally in my registration template, they are committed…
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answer78
viewsGolang Web: Head function
Good night, I’m starting in GO, and I have a question that may seem simple. I am creating a site with GO in Backend, my doubt is I have index.html and main.go created and are working, but in the…
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answer245
viewsHow to redirect Subdominio to specific folder from using . htaccess
I created the subdomains using wildcard I would like to understand how I can solve the following problem with . htaccess: usuario.site.com.br -> (Aponta para pasta Usuário) fulano.site.com.br…
php codeigniter web-application htaccess domainasked 4 years, 3 months ago marcos vinicius Mulinari 24 -
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answer322
viewsFailure to startar Tomcat
When I try to start the TomCat 7 in my project called ribeiraoreefshop, triggers the error of start the main one would be as follows: Failed to start Component [Standardengine[Catalina].…
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answers67
viewsTwo questions regarding the use of the Corsregistry.allowOrigins() method
I’m trying to do a post type resquest with credentials (token) for my spring boot built api. But I’m having trouble specifying the source I pass as a parameter to the method…
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answer607
viewsHow to make a Login and password screen using JSF
I made a login screen, on this screen the user can register through a registration button, made the registration he can access the system stating password and CPF. My system will be for…
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answer47
viewsCorrect LINQ search syntax in MVC
I built an application with MVC that performs a query in an SQL database and returns it as a table, and now I want to add a search bar to that screen. I’ve already set up my "Index.cshtml" view…
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answer1257
viewsmaskMoney(jquery) not displaying value correctly
Good afternoon guys, I’m having a problem using the maskMoney plugin from jQuery. I am using the following statement before <div style="float:left; width: 25%"> <asp:Label ID="Label24"…
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answers15
viewsI have a question about audio
I want to make a text that when I click plays some audio (but that does not open on another page) clicked on the word played the audio I have this doubt in html I’ve tried to make a link but when…
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answer21
viewsHow to share data from a web application?
I have the following problem, I have an application made in (HTML, CSS JS, Jquey) another application is in Reactjs, in this first application it is hosted and in a different domain for example…
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answers23
viewsAuthentication with jwt
I have a function to protect the route. Use as follows const authMiddleware = async (req, res, next) => { const token = req.header('Authorization')?.replace('Bearer ', '') if(!token) return…
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answers120
viewsCreate a variable inside an xpath
I’m trying to create an automation in python - (web scraping) that has a loop in which xpath changes every time you click on the desired location, so I realized that xpath only changes one digit:…
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answers54
viewsDjango: Optimize Database Searches
I am doubtful in the following exercise: The route /Albums/ is returning a listing of the albums with the artists of the album, but in some of our clients that use databases stored on own servers it…
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answers37
viewsError showing list of images that were recovered from BD
Images are recovered normally, but do not appear in the gallery. NOTE: If I take a picture of the list and play in one p:graphicImage works normal. Mbean: package org.salomao.bean; import…
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answers12
viewsjava.lang.Classnotfoundexception: javax.persistence.Persistence
I am in error when using Entitymanagerfactory, is a web project with Hibernate + JPA This is the mistake: java.lang.Classnotfoundexception: javax.persistence.Persistence at…
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answers14
viewsHow to declare a variable that will receive a Mysql Blob in PHP?
I am creating a method that will update some data, including an image that will be stored in longblob. The function declaration looks like this: public function uploadProjeto(string $tipo, string…
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answers15
viewsFatal Error: Uncaught Error: Call to a Member Function bind_param() on bool
I am preparing the following method of uploading information: public function uploadProjeto(int $idCategoria, string $titulo, string $area, string $ano, string $endereco, string $descricao){…
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answers274
viewsUndefined object reference for an instance of an Asp.net object
blz? Next, I have a problem with the exception "Object reference not defined for an instance of an object", I have already sought several solutions, however, none satisfies and/or corrects my…
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answers54
viewsProblem in the JSP Controller class
Hello, I need help, I have the problem in my system when I send an edit command. When I click on the edit button of the table row that I want, the screen turns white and does not show the options to…
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answers35
viewsWhat is the difference between native application and PWA
I need to develop an app for a site that already exists. Part of the content of this site will be in the app. I was thinking of developing an app using Goodbarbers, a service where it is possible to…
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answers86
viewsHow do I use parseFloat in this algorithm?
I created an algorithm that gets a 4-quarter note , which makes an average calculation and shows the result of the approval. For the result of the approval I did as follows . Result of Approval :…
javascript web-application front-end structured-programmingasked 6 years, 3 months ago Antonio Lima 25 -
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answers260
viewsSpringmvc controller does not redirect to another controller
No Controller Logincontroller.java @Controller @RequestMapping("/login") public class LoginController { @Autowired private UsuarioRepositorio usuarioRepositorio; @RequestMapping(method =…
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answer337
viewsHow to submit via java post?
In a system all data is exposed via URL due to the sending method GET. I need to send via POST. Code: <!DOCTYPE html> <html> <head> <meta charset="ISO-8859-1">…
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answer56
viewsBootstrap Responsiveness - Grid Issues
Hi, I’m developing a site and I need to fix this piece to stay this way on mobile But if I make a change to make it good in low resolutions, it ends up ruining the larger versions. Follow the code…
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answer1233
viewsTypeerror: Argument 1 is not Valid for any of the 1-argument overloads of URL.createObjectURL in Mozilla Firefox
I have a web app with a webcam photo capture feature. This feature has always behaved very well in Chrome and Mozilla Firefox, but since yesterday the following error appears below in the Mozilla…
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answers51
viewsPHP login verification error
People I am developing a PHP application for a camp of my Church, then I need to check if the user is logged in to be able to redirect him if he is logged in and try to reload the login page and…
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answers78
viewsJavascript error while trying to remove element
I made a method to remove an item from my table HTML which is supplied by a standard form but the information goes to the table in question... Until then everything normal, but when removing a new…
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answers152
viewsLosing Session Codeigniter
Good afternoon guys, I started an internship and they gave me an Commerce to stir, it has Codeigniter (I had never touched)and a library called ion auth(for login) but when I login it sets the…
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answers47
viewsCheck if a radio has been checked
I am doing a quiz and would like a code that checks if the radio was selected, if it was not selected give a message "select at least one response" <body> <h1 id="titulo">Quizz Game Of…