model-view-controller

问题 I duplicated an ASP.NET MVC project and renamed all the namespaces to the new project name. But now, if I log into the original application, and immediately navigate to the duplicated application, the dupe application accepts the authentication cookie and allows me through. They are hosted on the same domain. The applications use ASP.NET Identity for authentication. Is there a unique application key or something like that that needs to be changed in the duplicated application so that it does

问题 It's been a while since I've done web programming now, and managed to get myself into some trouble. Probably a trivial thing to solve for someone, but I've searched quite a bit online. All I can find are various way to solve the "$.ajax is not a function" problem by using the correct jQuery source. I've got that one figured out. What I'm wondering about is why does the ajax call work perfectly when not inside a javascript function? As soon as a put it in a function, I get the "$.ajax is not a

问题 I am trying to tell the controller to return a static file in some condition. I tried many ways "Server.MapPath" doesn't work for me so i need an alternative. i tried following but i get an error: return File(Url.Content(startupPath), "text/javascript"); the error is: InvalidOperationException: No file provider has been configured to process the supplied file. Microsoft.AspNetCore.Mvc.Infrastructure.VirtualFileResultExecutor.GetFileInformation(VirtualFileResult result) I have app

问题 So I am just starting to learn Asp.Net and am using Rider on Mac as my IDE. I'm am trying to enable migrations, however, I don't see Entity Frameworks option in tools under project context menu. Below is the link to the image: I was wondering if any of you have encountered this issue? If so, what did you do to fix it? 回答1: According to your screenshot, you've installed core EF NuGet. But your project is a classic one. Please, try installing the standard EntityFramework NuGet package. Also,

问题 I am working with a kinda large enterprise application which currently uses Struts 1.3 / JDBC and deployed on Tomcat 5.5. We predominantly use Struts Action only and do not use Action Forms or Struts tag libraries, only JSTL. We have a very thin DynaBeans based homegrown framework to provide very minimal light-weight, just-right-for-me resultset to object mapping. No JPA, No Hibernate, No EJB- just JDBC. This combination has served us well so far and we are quite happy the way we have been

问题 I am developing a application in JSP/Servlet using MVC. In this application I want to load index.jsp as welcome page and this page retrieves the data from database. I did it. Now the problem is that when index.jsp page loads it fetches data from database but it shows it on browser as plain text and my CSS is not working for it. I know that during translation phase JSP is converted into servlet and after processing it send output to browser so during that we have to write the relative path of

问题 I want to validate a form via Model Entity Required Attribute. I have Declared Required Attribute in Db Model Class, but not able to view the validation error when the filed remains empty, However the data is inserted into Db if the form fields are not empty but when they are empty no Validation Error occurs. Here is my Model Class Code: namespace MVCLogin.Models { using System; using System.Collections.Generic; using System.ComponentModel; using System.ComponentModel.DataAnnotations; public

问题 I'm trying to understand how the controller class and the .html.erb view files in Rails are connected, and how the view accesses data in the controller methods. For example, I have the following controller class: class SomeController < ApplicationController def show # defining some data to access in the view x = 1 @y = 2 end end If in the corresponding .html.erb view file, I try to access @y , this works fine <p> <%= @y %> </p> However, if I try to access x , it gives an error <p> <%= x %> <

问题 I created a project using create-react-app. The front-end is described inside the ./src folder. I have a file named server.js on the root of the project. This file is describing the API using express. I would like to have a folder with models that would be shared between the front-end (under ./src ) and the back-end (under ./server.js ). An example of a one of the classes that I would like to share: export default class DataModel { constructor(name) { this.name = name; } } If I put this class

问题 I am building a Snake and Ladders game in Java with Swing using NetBeans as the IDE. The problem is when i write a function which handles some aspects of the GUI (e.g setting icon of a label) OUTSIDE of the main class in another class, the application runs but the changes that have to happen using that code in that function doesn't apply. import javax.swing.JLabel; import javax.swing.JOptionPane; public class Game extends javax.swing.JFrame { protected javax.swing.JLabel diceLabel; private