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• Record management system java web framework

  - by Kamil Tomšík

  We're currently reconsidering technologies and frameworks to get more agile with "simple" RMS CRUD-based projects. In short, short-living things like this Right now we have a custom extension on top of SmartGWT but after some time it has proven not to be flexible enough. I also personally dislike the java-js compilation process and the whole GWT codebase. Not only is the design ugly, it also makes certain low-level js things very complicated if not completely impossible. So what I'm looking for is: closest to web as possible, like JSF or possibly Tapestry, it is very important to be able get "low" and weave framework if necessary. Happens more often than we thought. datagrid capable - Ext.js & PrimeFaces looks pretty good, Vaadin does too. db-schema generators (optional, no matter in which way) If it were only on me, I'd probably stick to Ext.js + custom rest-based java solution, possibly generated from database schema (not sure about concrete tooling yet). I only have experience with vanilla Ext.js, vanilla GWT and JSF 2.0 / Seam, so it hard for me to judge or even propose other frameworks. What would be your proposition? What are the problems you've faced? What was your solution and how hard do you think it was to deal with them in "big picture"?

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• Error using SoapClient() in PHP [migrated]

  - by Dhaval

  I'm trying to access WSDL(Web Service Definition Language) file using SoapClient() of PHP. I found that WSDL file is authenticated. I tried with passing credentials on an array by another parameter and active SSL on my server, still I'm getting an error. Here is the code I'm using: $client = new SoapClient("https://webservices.chargepointportal.net:8081/coulomb_api_1.1.wsdl",array("trace" = "1","Username" = "username","Password" = "password")); Here is the error I'm getting: Warning: SoapClient::SoapClient(https://webservices.chargepointportal.net:8081/coulomb_api_1.1.wsdl) [soapclient.soapclient]: failed to open stream: Connection timed out in PATH_TO_FILE on line 80 Warning: SoapClient::SoapClient() [soapclient.soapclient]: I/O warning : failed to load external entity "https://webservices.chargepointportal.net:8081/coulomb_api_1.1.wsdl" in PATH_TO_FILE on line 80 Fatal error: Uncaught SoapFault exception: [WSDL] SOAP-ERROR: Parsing WSDL: Couldn't load from 'https://webservices.chargepointportal.net:8081/coulomb_api_1.1.wsdl' : failed to load external entity "https://webservices.chargepointportal.net:8081/coulomb_api_1.1.wsdl" in PATH_TO_FILE:80 Stack trace: #0 /home2/wingstec/public_html/widget/API/index.php(80): SoapClient-SoapClient('https://webserv...', Array) #1 {main} thrown in PATH_TO_FILE on line 80 It seems that error says file not exist at the path we given but when we run that path directly on browser then we're getting that file Can anyone help me to figure out what the exactly problem is?

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• Strategy for restoring state via URL in web apps

  - by JW01

  This is a question about modern web apps, where a single page is loaded, and all subsequent navigation is done by XHR calls and modifying the DOM. We can use libraries that manipulate the hash string, which let us navigate by URL and support the back/forward buttons. But to use those libraries, we need to be able to move the UI from any one state to any other. Is there a good strategy for moving between UI states, that also allows them to be restored from scratch when you load a new URL? In a complex app, you might have a lot of different states. You don't want to reload the entire UI each time you change states. But you also don't want to require separate methods for moving from every state to each every state. Typically we need to: Restore a state from scratch, when you enter a new URL or hit Reload. Move from one state to another, when you use the Back/Forward buttons. Move from one state to another, when you perform an action within your app (like clicking a link). Move to certain states that shouldn't be added to the history, like ones that appear after form submissions. Move to some states that are built on the previous state, like a drill-down list. When you perform actions within your app, there's the additional question of which comes first: Do you change the URL, listen for the URL change, and change your state in response to it? Or do you change your state, then change the URL, but don't do anything in response? Does anyone have some experience to share on this topic?

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• Use IIS express in Visual studio sp1

  - by anirudha

  many developer thing to adopt IIS express aka Webmatrix to use inside visual studio. that the feature of Visual studio service pack 1. the visual studio 2010 sp1 allow developer to use webmatrix inside the visual studio. the developer can choose one of Visual studio development server or Webmatrix. the visual studio service pack 1 launch today but i am not recommended them because it’s in beta. if you use them then you may be in a big trouble because beta’s fundamental we all know. don’t be fool by installing them because they not tell you about both thing pros and cons. the stable version of visual studio is Visual studio who can be obtained from Microsoft download center not service pack 1. so beware to use unstable version. this is not browser then we have 3 option 1. chrome 2. firefox  3. Microsoft internet explorer [fool] because this is IDE and we have only one that can be problem if they work not well. the service pack 1 always changes your installation for visual studio Express edition [tool such as VWD or VCS express] if you already have them  i means service pack 1 then share your experience with us! if not that don’t look on Microsoft website blogs because they never tell you pros and cons of their software.

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• RMS java web framework

  - by Kamil Tomšík

  We're currently reconsidering technologies and frameworks to get more agile with "simple" RMS CRUD-based projects. In short, short-living things like this Right now we have custom extension on top of SmartGWT but after some time it has proven not to be enough flexible. I also personally dislike that java-js compilation process and the whole GWT codebase. Not only its ugly designed, it also makes certain low-level js things very complicated if not completely impossible. So what I'm looking for is: closest to web as possible, like JSF or possibly Tapestry, it is very important to be able get "low" and weave framework if necessary. Happens more often than we thought. datagrid capable - Ext.js & PrimeFaces looks pretty good, Vaadin does too. db-schema generators (optional, no matter in which way) If it were only on me, I'd probably stick to Ext.js + custom rest-based java solution, possibly generated from database schema (not sure about concrete tooling yet) I only does have experience with vanilla Ext.js, vanilla GWT and JSF 2.0 / Seam, so it kinda hard for me to judge or even propose other frameworks. What would be your proposition? What are the problems you've faced, what was your solution and how hard do you think it was to deal with them in "big picture"?

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• multi user web game with scheduled processing?

  - by Rooq

  I have an idea for a game which I am in the process of designing, but I am struggling to establish if the way I plan to implement it is possible. The game is a text based sports management simulation. This will require players to take certain actions through a web browser which will interact with a database - adding/updating and selecting. Most of the code required to be executed at this point will be fairly straightforward. The main processing will take place by applications which are scheduled to run on the server at certain times. These apps will process transactions added by the players and also perform some automatic processing based on the game date. My plan was to use an SQL server database (at last count I require about 20 tables) and VB.net for all the coding (coming from a mainframe programming background this language is the simplist for me to get to grips with). I will also need a scheduling tool on the server. Can anyone tell me if what I am planning is feasible before I dive into the actual coding stage of my project?

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• Web to Print system - which client side technology should I use

  - by mr null

  I'm getting started to develop Web to Print system. My main concern is which client-side techology should I use: jQuery/CSS Flex/ActionScript or something else? For now, idea is that user/customer choose Product eg: Business card Attributes: Dimensions,Paper type, ... etc Template or blank Adjust product (editor) Preview & order Output should be PDF 300dpi. My main issue is: adding/adjusting text in editor. (font size, font family...). Because application should be cross browser. And I think that 10px Arial can't be the same in Firefox 5 and IE 8. It must be pixel perfect in every browser. If somebody order $100 of business cards, and text is different that he/she saw when ordering - that is a big problem. So, Flash platform should be the answer. But, as I see it's dying technology, 2012 is here - HTML5 is replacing Flash rapidly. I hope that you understand me, so every guideline or few smart words would be very appreciating.

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• Making simple forms in web applications

  - by levalex

  How do you work with forms in your web applications? I am not talking about RESTful applications, I don't want to build heavy front-end using frameworks like Backbone. For example, I need to add "contact us" form. I need to check data which was filled by user and tell him that his data was sent. Requirements: I want to use AJAX. I want to validate form on back-end side and don't want to duplicate the same code on front-end side. I have my own solution, but it doesn't satisfy me. I make an AJAX request with serialized data on form submit and get response. The next is checking "Content-type" header. html - It means that errors with filling form are exists and response html is form with error labels. - I will replace my form with response html. json and response.error_code == 0 - It means that form was successfully submited. - I will show user notification about success. json and response.error_code != 0 - Something was broken on back-end (like connection with database). other - I display the following message : We have been notified and have started to work with that problem. Please, try it later. The problem of that way is that I can't use it with forms that upload file. What is your practise? What libraries and principles do you use?

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• Visual Studio 2010 Service Pack 1 Released

  - by krislankford

  The VS 2010 SP 1 release was simultaneous to the release of TFS 2010 SP1 and includes support for the Project Server Integration Feature Pack and updates to .NET Framework 4.0. The complete Visual Studio SP1 list including Test and Lab Manager: http://support.microsoft.com/kb/983509 The release addresses some of the most requested features from customers of Visual Studio 2010 like better help support IntelliTrace support for 64bit and SharePoint Silverlight 4 Tools in the box unit testing support on .NET 3.5 a new performance wizard for Silverlight Another major addition is the announcement of Unlimited Load Testing for Visual Studio 2010 Ultimate with MSDN Subscribers! The benefits of Visual Studio 2010 Load Test Feature Pack and useful links: Improved Overall Software Quality through Early Lifecycle Performance Testing: Lets you stress test your application early and throughout its development lifecycle with realistically modeled simulated load. By integrating performance validations early into your applications, you can ensure that your solution copes with real-world demands and behaves in a predictable manner, effectively increasing overall software quality. Higher Productivity and Reduced TCO with the Ability to Scale without Incremental Costs: Development teams no longer have to purchase Visual Studio Load Test Virtual User Pack 2010. Download the Visual Studio 2010 Load Test Feature Pack Deployment Guide Get started with stress and performance testing with Visual Studio 2010 Ultimate: Quality Solutions Best Practice: Enabling Performance and Stress Testing throughout the Application Lifecycle Hands-On-Lab: Introduction to Load Testing with ASP.NET Profile in Visual Studio 2010 How-Do-I videos: Use ASP.NET Profiler in Load Tests Use Network Emulation in Load Tests VHD/VPC walkthrough: Getting Started with Load and Performance Testing Best Practice guidance: Visual Studio Performance Testing Quick Reference Guide

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• Standards & compliances for secure web application development?

  - by MarkusK

  I am working with developers right now that write code the way they want and when i tell them to do it other way they respond that its just matter of preference how to do it and they have their way and i have mine. I am not talking about the formatting of code, but rather of way site is organized in classes and the way the utilize them. and the way they create functions and process forms etc. Their coding does not match my standards, but again they argue that its matter of preference and as long as goal achieved the can be different way's to do it. I agree but their way is proven to have bugs and we spend a lot of time going back and forth with them to fix all problems security or functionality, yet they still write same code no matter how many times i asked them to stop doing certain things. Now i am ready to dismiss them but friend of mine told me that he has same exact problem with freelance developers he work with. So i don't want to trade one bad apple for another. Question is is there some world wide (or at least europe and usa) accepted standard or compliance on how write secure web based applications. What application architecture should be for maintainable application. Is there are some general standard that can be used for any language ruby php or java govern security and functionality and quality of code? Or at least for PHP and MySQL i use for my website. So i can make them follow this strict standard and stop making excuses.

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• Web Crawler for Learnign Topics on Wikipedia

  - by Chris Okyen

  When I want to learn a vast topic on wikipedia, I don't know where to start. For instance say I want to learn about Binary Stars, I then have to know other things linked on that pages and linked pages on all the linked pages and so on for the specified number of levels. I want to write a web crawler like HTTracker or something similiar, that will display a heiarchy of the links on a certain page and the links on those linked pages.I wish to use as much prewritten code as possible. Here is an example: Pretending we are bending the rules by grabing links from only the first sentence of each pages The example archives and "processes" two levels deep The page is Ternary operation The First Level In mathematics a ternary operation is an N-ary operation The Second Level Under Mathmatics: Mathematics (from Greek µ???µa máthema, “knowledge, study, learning”) is the abstract study of topics encompassing quantity, structure, space, change and others; it has no generally accepted definition. Under N-ary In logic,mathematics, and computer science, the arity i/'ær?ti/ of a function or operation is the number of arguments or operands that the function takes Under Operation In its simplest meaning in mathematics and logic, an operation is an action or procedure which produces a new value from one or more input values ------------------------------------------------------------------------- I need some way to determine what oder to approach all these wiki pages to learn the concept ( in this case ternary operations )... Following along with this exmpakle, one way to show the path to read would a printout flowout like so: This shows that the first sentence of the Mathematics page doesn't link to the first sentence of pages linked on ternary page two levels deep. (Please tell me how I should explain this ) --- In otherwords, the child node of the top pages first sentence, ternary_operation, does not have any child nodes that reference the children of the top pages other children nodes- N-ary and operation. Thus it is safe to read this first. Since N-ary has a link to operations we shoudl read the operation page second and finally read the N-ary page last. Again, I wish to use as much prewritten code as possible, and was wondering what language to use and what would be the simpliest way to go about doing this if there isn't already somethign out there? Thank You!

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• How to customize web-app (pages and UI) for different customers

  - by demoncodemonkey

  We have an ASP.NET web-application which has become difficult to maintain, and I'm looking for ideas on how to redesign it. It's an employee administration system which can be highly customized for each of our customers. Let me explain how it works now: On the default page we have a menu where a user can select a task, such as Create Employee or View Timesheet. I'll use Create Employee as an example. When a user selects Create Employee from the menu, an ASPX page is loaded which contains a dynamically loaded usercontrol for the selected menuitem, e.g. for Create Employee this would be AddEmployee.ascx If the user clicks Save on the control, it navigates to the default page. Some menuitems involve multiple steps, so if the user clicks Next on a multi-step flow then it will navigate to the next page in the flow, and so on until it reaches the final step, where clicking Save navigates to the default page. Some customers may require an extra step in the Create Employee flow (e.g. SecurityClearance.ascx) but others may not. Different customers may use the same ASCX usercontrol, so in the AddEmployee.OnInit we can customize the fields for that customer, i.e. making certain fields hidden or readonly or mandatory. The following things are customizable per customer: Menu items Steps in each flow (ascx control names) Hidden fields in each ascx Mandatory fields in each ascx Rules relating to each ascx, which allows certain logic to be used in the code for that customer The customizations are held in a huge XML file per customer, which could be 7500 lines long. Is there any framework or rules-engine that we could use to customize our application in this way? How do other applications manage customizations per customer?

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• Should I learn the easier framework as a start? [closed]

  - by gunbuster363

  I've been a programmer for 2 years. I learned Java SE, C from college and learned Cobol from the workplace. I've noticed that there is a hype about framework and I actually don't know what is a framework. It is so cool that my colleague once said you cannot find a new job without knowing something like struct spring hibernate. And we should know Java EE too because it was aimed for enterprise application. I've never code something such as server-client web application, and I think I need to try it out. But which language should I code in? I can't decide between the following 2: 1) Java. It is heavily used by many company so I could easily reuse the experience gained. But Java and its related framework are pretty heavy (for the machine and operation). It is on-demand. 2) ROR. It is cool. The syntax of ruby is simple. I can get a better hand on it. And maybe I can learn the concept easily and possibly correctly. However, not much company here would use it. All the job ads are about J2EE/C#. Should I learn the easy one or the difficult one? Not to mention there are a lot of frameworks out there for Java, which makes the decision much more difficult.

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• What's the canonical process for backing up a website?

  - by Walkerneo

  This is going to sound terrible, but bear with me. I currently have a cron job that does a mysql dump, a git add all and commit, and a git push to bitbucket. I set this up almost a year ago, when I didn't know much about git, backups, and general web development and administration. I haven't had the time to fix this and do it properly, but the repo has now grown quite big from accumulating large temporary files from my forum, so now I have to do something and I want to do it properly this time around. What processes do semi-large websites and personal site admins use for backing up server content? Based on what I've learned since I set this up, what I'm currently think of doing is: Making changes on a development domain and committing the code frequently Archiving the entire site after a successful deployment from the development domain Having automatic daily database and user-content backups. I still like the idea of backing up sqldumps with git, though. I know git isn't a backup tool and that this is beyond its purpose, but the textual queries that are exported would be easily managed by git and would save a lot of space in archives.

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• Best way to protect website application code

  - by Gaz_Edge

  Background I have a web application that I host on my own server. I have clients who use the application as is, but some have asked if they can host the application on their own server. This enables them to have their own URLS rather than mine. The application only forms part of their website so I'm assuming it will not be possible for my server to respond to a direct call to their domain etc To give some examples, i currently have urls like www.mydomain.com/profile, www.mydomain.com/index.php?option=someoption&view=someview&id=1 What my clients' want is www.theirdomian.com/profile, www.theirdomian.com/index.php?option=someoption&view=someview&id=1 etc Question My question is, what is the best way for me to allow them to use their own URLs with my application, without giving them all the backend source code and databases to install on their server? One way I thought would be to create a router.php file that sits on their server. The router then asks my server to output the html. The router modifies all the links etc in the html source and outputs the new html through the clients server. When a link is clicked on the clients site, the router receives the request and modifies the url to get the data from my server etc. Is this an effective way to achieve what I want, or is it way off the mark.

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• Web-Service: How much would you charge? [closed]

  - by jacksbox

  I´ve to make an offer to a client who wants me to develope a web-service for him. I have some trouble calculating the pricing - can you help me? Here is a rough outline of the project: It´s a portal on which various artists and entertainers can register and administrate there profile (texts, gallerie, some embedded videos, choose categories and radius of offer, etc). Other user can browse the artists by 3-4 level categories and countries/staats. If someone wants to hire a artists, he can put them in an "shopping-basket" and can mail everyone in his basket. The Artists can answer them with a form on the website (he doesn't get the email of the other person). Users should be able to comment/rate the artists. But if an artists wants this comments/ratings visible on his profile he must pay, and after that, the admin of the site must activate this comments/ratings. So, no more information given, what would you charge (ca.)? Edit: It´ll be developed with php/codeigniter. A .psd design is already there.

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• What kind of security issues will I have if I provide my web app write access?

  - by iama

  I would like to give my web application write access to a particular folder on my web server. My web app can create files on this folder and can write data to those files. However, the web app does not provide any interface to the users nor does it publicize the fact that it can create files or write to files. Am I susceptible to any security vulnerabilities? If so, what are they?

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• Visual studio 2005 debugger won't stop at requested break points...

  - by beytz

  I have debug=true both in the web.config and in the requested file but it still won't stop. Thanks...

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• how to verify browser IP for server-side web service

  - by Anthony

  I have a web service that needs to be able to verify the end-user's IP that called the server-script that is requesting the web service. Simple layout: Person A goes to Webpage B. Webpage B calls Web Service C to get some info on Person A. Web Service C won't give Webpage B the requested information without confirmation that the request originated from Person A's IP and not someone who has stolen Person A's session. I'm thinking that for a browser-based solution, the original site (Webpage B) can open an iframe that goes to the Web Service's authentication page. A key of some kind is passed to the browser which will some how indicate both the user's IP and Web Page B's IP, so that the Web Service can confirm that no one has nabbed anything. I have two challenges, but I'll stick to the more immediate one first: I'm not sure if my browser-based plan really makes sense. If someone steals the session cookie, how is the Web Service going to know? Would this cookie be held be Web Page B and thus be harder to steal? Is it a sound assumption that a cookie or key held by the server only and not the browser is safe? Also, would the web service, based on the iframe initial connection, be expecting the server/user-ip combo? What I mean is, does the session key provided via the iframe get stored by the web service and the Web Site B shows it has a match? Or is the session key more generic, meaning the web service is passed the key by Website B and the Web Service verifies that this is a valid session key based on what a valid session key should look like?

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• What issues might I have in opening .NET 2.0 Projects in Visual Studio 2010?

  - by Ben McCormack

  The small software team I work on recently got approved to upgrade to Visual Studio 2010 (we're currently using VS 2005). We have several ASP.NET 2.0 and WinForms (in .NET 2.0) projects in production. I've been tasked with downloading VS 2010 and seeing how well it plays with our current projects. What issues should I be aware of when targeting older applications in VS 2010? If I open a VS 2005 project in VS 2010, will it still place nicely when my teammate goes back to open the project in VS 2005? Will we have to upgrade projects to work in VS 2010 (assuming the projects themselves aren't upgraded to .NET 4)? Can I use VS 2010 to edit legacy VB6 apps (just kidding)? I'm excited to work with the newest software, but we're concerned about running into development snags on production applications that are already working just fine. NOTE: I started a bounty in hopes of getting a more detailed answer to this question. Perhaps the answer really is as simple as those already provided, but I'm interested in more feedback regarding our options to transition from using VS 2005 to VS 2010.

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• In Visual Studio (2008) is there a way to have a custom dependent file on another custom file?

  - by rball

  Instead of a *.cs code behind or beside I'd like to have a *.js file. I'm developing a MVC application an have no need for a code beside because I have controllers, but in certain cases it'd be nice to have a JavaScript code beside or some way to associate the file to the page it's being used on. I suppose I could just name them similarly, but I'm wanting to show the association if possible so there's no question about what the file is for. Typically what I'm talking about is within Visual Studio now under your Global.asax file you will have a plus sign to the left: + Global.asax Once you expand it you'll get - Global.asax Global.asax.cs I'd like the same thing to happen: + Home.spark - Home.spark Home.spark.js Updated: My existing csproj file has a path to the actual file, not sure if that's screwing it up. I've currently got: <ItemGroup> <Content Include="Views\User\Profile.spark.js"> <DependentUpon>Views\User\Profile.spark</DependentUpon> </Content> </ItemGroup> <ItemGroup> <Content Include="Views\User\Profile.spark" /> </ItemGroup> and it's simply just showing the files besides each other.

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• What are the default return values for operator< and operator[] in C++ (Visual Studio 6)?

  - by DustOff

  I've inherited a large Visual Studio 6 C++ project that needs to be translated for VS2005. Some of the classes defined operator< and operator[], but don't specify return types in the declarations. VS6 allows this, but not VS2005. I am aware that the C standard specifies that the default return type for normal functions is int, and I assumed VS6 might have been following that, but would this apply to C++ operators as well? Or could VS6 figure out the return type on its own? For example, the code defines a custom string class like this: class String { char arr[16]; public: operator<(const String& other) { return something1 < something2; } operator[](int index) { return arr[index]; } }; Would VS6 have simply put the return types for both as int, or would it have been smart enough to figure out that operator[] should return a char and operator< should return a bool (and not convert both results to int all the time)? Of course I have to add return types to make this code VS2005 C++ compliant, but I want to make sure to specify the same type as before, as to not immediately change program behavior (we're going for compatibility at the moment; we'll standardize things later).

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• Web Application : How to upload multiple images at a time

  - by SAMIR BHOGAYTA

  //First add image control into the web form how many you want to upload images at a time //Add one button //Write the below code into the button_click event if (FileUpload1.HasFile) { string imagefile = FileUpload1.FileName; if (CheckFileType(imagefile) == true) { Random rndob = new Random(); int db = rndob.Next(1, 100); filename = System.IO.Path.GetFileNameWithoutExtension(imagefile) + db.ToString() + System.IO.Path.GetExtension(imagefile); String FilePath = "images/" + filename; FileUpload1.SaveAs(Server.MapPath(FilePath)); objimg.ImageName = filename; Image1(); if (Session["imagecount"].ToString() == "1") { Img1.ImageUrl = FilePath; ViewState["img1"] = FilePath; } else if (Session["imagecount"].ToString() == "2") { Img1.ImageUrl = ViewState["img1"].ToString(); Img2.ImageUrl = FilePath; ViewState["img2"] = FilePath; } else if (Session["imagecount"].ToString() == "3") { Img1.ImageUrl = ViewState["img1"].ToString(); Img2.ImageUrl = ViewState["img2"].ToString(); Img3.ImageUrl = FilePath; ViewState["img3"] = FilePath; } else if (Session["imagecount"].ToString() == "4") { Img1.ImageUrl = ViewState["img1"].ToString(); Img2.ImageUrl = ViewState["img2"].ToString(); Img3.ImageUrl = ViewState["img3"].ToString(); Img4.ImageUrl = FilePath; ViewState["img4"] = FilePath; } else if (Session["imagecount"].ToString() == "5") { Img1.ImageUrl = ViewState["img1"].ToString(); Img2.ImageUrl = ViewState["img2"].ToString(); Img3.ImageUrl = ViewState["img3"].ToString(); Img4.ImageUrl = ViewState["img4"].ToString(); Img5.ImageUrl = FilePath; ViewState["img5"] = FilePath; } } } //execption handling else { lblErrMsg.Visible = true; lblErrMsg.Text = ""; lblErrMsg.Text = "please select a file"; } } //if file extension belongs to these list then only allowed public bool CheckFileType(string filename) { string ext; ext = System.IO.Path.GetExtension(filename); switch (ext.ToLower()) { case ".gif": return true; case ".jpeg": return true; case ".jpg": return true; case ".bmp": return true; case ".png": return true; default: return false; } }

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• Advantages and disadvantages of building a single page web application

  - by ryanzec

  I'm nearing the end of a prototyping/proof of concept phase for a side project I'm working on, and trying to decide on some larger scale application design decisions. The app is a project management system tailored more towards the agile development process. One of the decisions I need to make is whether or not to go with a traditional multi-page application or a single page application. Currently my prototype is a traditional multi-page setup, however I have been looking at backbone.js to clean up and apply some structure to my Javascript (jQuery) code. It seems like while backbone.js can be used in multi-page applications, it shines more with single page applications. I am trying to come up with a list of advantages and disadvantages of using a single page application design approach. So far I have: Advantages All data has to be available via some sort of API - this is a big advantage for my use case as I want to have an API to my application anyway. Right now about 60-70% of my calls to get/update data are done through a REST API. Doing a single page application will allow me to better test my REST API since the application itself will use it. It also means that as the application grows, the API itself will grow since that is what the application uses; no need to maintain the API as an add-on to the application. More responsive application - since all data loaded after the initial page is kept to a minimum and transmitted in a compact format (like JSON), data requests should generally be faster, and the server will do slightly less processing. Disadvantages Duplication of code - for example, model code. I am going to have to create models both on the server side (PHP in this case) and the client side in Javascript. Business logic in Javascript - I can't give any concrete examples on why this would be bad but it just doesn't feel right to me having business logic in Javascript that anyone can read. Javascript memory leaks - since the page never reloads, Javascript memory leaks can happen, and I would not even know where to begin to debug them. There are also other things that are kind of double edged swords. For example, with single page applications, the data processed for each request can be a lot less since the application will be asking for the minimum data it needs for the particular request, however it also means that there could be a lot more small request to the server. I'm not sure if that is a good or bad thing. What are some of the advantages and disadvantages of single page web applications that I should keep in mind when deciding which way I should go for my project?

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• ??????????????JSF2????Web????????????Java Developers Workshop 2012 Summer????

  - by ???02

  ???WebLogic Server 12c?????Java EE 6????1???Web??????????????????????JavaServer Faces 2(JSF2)????????????????????????????????????????8???????Java Developers Workshop 2012 Summer??????????????????Java?????????????(Fusion Middleware????????)????????????????(???) JSF2??10?????AJAX??Web?????????????? ?????? Fusion Middleware???????? ???Java?????????????? Java EE 6????Web?????????????·????????????JSF2??Struts???Java EE???????Web????????·????????????????????????????????????????JSF2????????????Web??????????????UI??????????????????????????? ??????????Java EE?????????????????????????????????Java EE 6?JSF2??????????????????“????????”?????????????Java EE 6???????????????????????JSF2????????·???????????????????????????????????????????????????????? ??????????????GlassFish????????NetBeans???????????????????????????????????????11??????????????????????????????????????????(???)???? ???????????????????Web?????????????????????????????????????????????????????????????? ????AJAX???????????????????????????????????????????????????·????????????????????????? ????????????????NetBeans???????????????????????????????????????????????????·?????????????????????????????????????????????? ???????????????????????JSF2?????????AJAX???????????·??????????????????????????????????????????????????????????????Web????????????????????AJAX????????????JSF???????????1?????????? ?Java EE????????????????????????????Java EE 6??AJAX??????????????????????????????????????XML???????????NetBeans?????IDE???????????????????????????????????(???) ???????·?????????????????????? JSF 2????????????????????????Web??????(?????)?????????????????????????????3???????????? ??????????Visual Basic?JavaFX?????????????·????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? JSF2???MVC??????HTTP???????????????????Controller???Faces Servlet?????View?????XHTML??????Model?????Managed Bean????????????? ?????View???????????JavaServer Pages(JSP)?????????????????????XHTML????????????????View???????????????????????JSP????Scriptlet???????????????????????????????????????????????????? JSF2???View?Model??????????????????????????????????????????????????????????? ?????????JSF2????????1???HTML???Web????????????????????????JSF???Web????????????????????????????????????????HTML????????????????????????HTML 4.0?DHTML???????????????????????JavaScript??????????????????????JavaScript???????????Web?????????resources???????????????????????JSF2?????????????????Web??????????????? ????????????????????????????????????????????????·???????Web?????????????????????????????????????? ?????????????????????????????????????????????????????????????????????????? ????JSF???????????????????????????????????????????? ????JSP?????????????????????????????????????????????????????HTML????Web??????????????????????????????????JSP?Web???????????????????????????????????????????????????XHTML????JSF????????View???JSF2?????????????????????????????????????/??????????? JSF???????????????? ????????????????????????JSF?????????????????????????????????JSF2????????????????????????????????????? Web?????????????????XHTML????????JSF?Facelets?Web???(View)???UIComponent?????????? ??View?????????????????????????????View(UIComponent???)?????? ??????View?????????????????????? ???????????????Bean Validation????????????????????? ???JSF2??@FacesValidator??????????????????????????????????????????????????Validator?implements??????validate????????????????????????????????????????????????? ????????????????Model?POJO????????????????ManagedBean?JPA Entity?????????Value?????????????????????????Component??????????????????Component?????????????????1????????????????????????????????????????????? JSF2??????????????????JSF 1.2???????????·????XML?????????????????JSF2?????????????????????????????????????????????????????????? ???JSF???Web?????????????????????ManagedBean?CDI(Contexts and Dependency Injection)???POJO????????????????????????????????????????????????????????????????????????ManagedBean???????????????????????????????????????????????????????????????????????? ??????????????????????JSF???????????????????????????????????????JSF2??????????????????????????????????????????????? ????????????????JSF?Web??????????????????????????????????????·????????????????????????????JSF????????????????????????????????????????????????????????????????

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