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  • MySQL Connection Error with JSP

    - by voidmain
    Hello, I am trying to connect to mysql database from jsp page. The connection code is as below InitialContext ic=new InitialContext(); DataSource ds=(DataSource)ic.lookup("jdbc:mysql://localhost:3306/"); Connection con=ds.getConnection(); Statement stmt = con.createStatement(); when i open the page i get the following error javax.servlet.ServletException: javax.naming.NamingException: Lookup failed for 'jdbc:mysql://localhost:3306/' in SerialContext [Root exception is javax.naming.NameNotFoundException: jdbc:mysql:] can some one please tell me what is wrong with this...

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  • For very beginning startup: home server or EC2?

    - by StCee
    The micro instance of Amazon EC2 only has ram of 613MB, my laptop got 8GB. And I suppose likewise the processing power of my computer would be better than the micro instance. My question is, what are the considerations in deciding to host yourself or on Amazon EC2, especially for a really baby startup? For example, would network speed be a problem? My computer broadband network is 100Mbs up to 1Gbs. What would Amazon compare to this? My site at these moment would just host some images and perform some php requests. I would probably also use cloudflare but seems it increases the dns lookup time considerably... And of course the overall objective is to make the best user experience.

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  • How can I check that I'm not frying the chipset on my 945 gclf?

    - by Journeyman Geek
    I'm running an old 945 gclf as a home server. Its an odd little system which has a passively cooled single core atom 230 processor, and a small heatsink/fan combo over the chipset. lm-sensors/sensors detects one temperature sensor which I guess is the processor. coretemp-isa-0000 Adapter: ISA adapter Core 0: +38.0°C (crit = +100.0°C) The fan on it is making rather horrible noises and I am considering unplugging it or using a speed reducer. There's also a risk it may fail anyway. Is there any way I can monitor the temperatures of the chipset or be warned of any issues with it? Is there anything specific I can watch out for that would indicate trouble?

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  • Prevent RegEx Hang on Large Matches...

    - by developerjay
    This is a great regular expression for dates... However it hangs indefinitely on this one page I tried... I wanted to try this page ( http://pleac.sourceforge.net/pleac%5Fpython/datesandtimes.html ) for the fact that it does have lots of dates on it and I want to grab all of them. I don't understand why it is hanging when it doesn't on other pages... Why is my regexp hanging and/or how could I clean it up to make it better/efficient ? Python Code: monthnames = "(?:Jan\w*|Feb\w*|Mar\w*|Apr\w*|May|Jun\w?|Jul\w?|Aug\w*|Sep\w*|Oct\w*|Nov(?:ember)?|Dec\w*)" pattern1 = re.compile(r"(\d{1,4}[\/\\\-]+\d{1,2}[\/\\\-]+\d{2,4})") pattern4 = re.compile(r"(?:[\d]*[\,\.\ \-]+)*%s(?:[\,\.\ \-]+[\d]+[stndrh]*)+[:\d]*[\ ]?(PM)?(AM)?([\ \-\+\d]{4,7}|[UTCESTGMT\ ]{2,4})*"%monthnames, re.I) patterns = [pattern4, pattern1] for pattern in patterns: print re.findall(pattern, s) btw... when i say im trying it against this site.. I'm trying it against the webpage source.

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  • cannot render json without login. What should i do?

    - by logesh
    I am new to rails and i am trying few examples. I have login page using devise authentication and i have one more page where user can store their details, view, edit and delete the details. It is displayed in html format, once login is done. I want to produce json for iPhone so if i call as localhost:3000/posts/1.json it does not show json but after login i can see the json. so how shoud i do this? Pls help me.

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  • How to get the innerHTML of a XML document (AJAX)?

    - by JCOC611
    After an AJAX query, a XML file is returned. I'm able to "parse" that file, but when it comes to getting the "innerHTML" (or in this case "innerXML" lol) of an element, I fail. If the XML element, let's say "content", only contained text I could do: content.childNodes[0].nodeValue (assuming that content references the XML element "content"). But that element contains other elements: <stackoverflow reason="tribute to this page"> <content> <div><span><p>Some more HTML elements</p></span></div> </content> </stackoverflow> I need to copy the content of <content> to an existing <div> in the page, how could I do that? Ex. myDiv.innerHTML = content.innerHTML;

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  • jQuery UI dialog positioning

    - by Wickethewok
    I am trying to use the jQuery dialog UI library in order to position a dialog next to some text when it is hovered over. The jQuery dialog takes a position parameter which is measured from the top left corner of the current viewport (in other words, [0, 0] will always put it in the upper left hand corner of your browser window, regardless of where you are currently scrolled to). However, the only way I know to retrieve the location is of the element relative to the ENTIRE page. The following is what I have currently. position.top is calculated to be something like 1200 or so, which puts the dialog well below the rest of the content on the page. $(".mytext").mouseover(function() { position = $(this).position(); $("#dialog").dialog('option', 'position', [position.top, position.left]); } How can I find the correct position? Thanks!

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  • Programatically convert complex Excel file into HTML format

    - by shuby_rocks
    Hello all, I have a set of complex Excel files (with figures in it) that I want to show in a web browser. So I need to convert them into HTML page first. Since the excel files are very complex, I can not just parse them and generate a HTML table with HTML tags. The current manual solution that works fine is when I use Microsoft Excel software to save the spreadsheet as a HTML page. I want to automate this task in some way since I want to do it progrmatically through Java. Is their any existing solution or a way to do it? Thanks.

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  • iPhone Tab Bar App With Registration View

    - by leeks
    Hi! I'm a relative newbie on iPhone app development but have successfully created a tab bar app with 4 tab bar items. I would like to have a one-off registration page for users to key-in information when they open the application for the first time. The registration page should load before the view with the selection of tab bar items loads. What is the best way to do this? Also, how do I load a UIView or UIWebView before the tab bar items load? Any suggestions and sample code would be very much appreciated - thanks!

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  • Windows Server: Do I really need servers in remote locations?

    - by IMAbev
    I have one main site with several servers an a 2008/2012 environment. I have 4 remote sites that are physically close (a few miles apart) and are all connected to the main site by 20meg fiber on a private network. At each of the remote locations I have a windows server that users log in to and where their files and apps are located. There are many considerations to answering this question. But the first thing I am wondering is do I really need a server at each location? Users are just logging in to this server for permissions and a vast majority of my users are only using word, excel and email. I am really interested in figuring out if I need servers at these locations. $3,000 to $4,000 per server every 3-5 years, licensing, administration... I know there are other considerations - speed, redundancy, if my link to the main site goes down the users have nothing. But I just am not convinced I need servers at these locations.

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  • Session Issue only in IE for an ASP .NET application

    - by Siva
    We have migrated our Asp .NET application from Windows 2000 server to Windows 2003 Server when we access the site from Internet explorer we are facing some cache issues like when we click on logout its redirecting to homepage instead of login page but when i try to navigate inside its not allowing me i.e. its throwing me the user id and password is wrong.. i am facing this issue only in IE if i access the same page from Firefox i am not gettiing these kind of issue.. Is this problem related to some IIS settings or some code change is required? please help me in solving this issue...

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  • REST destroy link generate problem

    - by Wei
    I am using rails beta 3 and I have a erb page named index.html.erb for discussions controller. In that page, I have a link as following: <%= link_to 'Delete', {:action='destroy', :id=@discussion}, :confirm="Are you sure", :method='post' % Which is supposed to generate a link to delete a discussion, however, the generated html is Delete which always routes to the show action. I think the href should be /discussions/destroy/1. But for some reason it is not. Any ideas? Thanks in advance.

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  • How can I implement a login wall for expired or inappropriate pages?

    - by Redandwhite
    I am writing a website that very explicitly requires a login wall. Visitors should be required to log in before they are allowed to view a page. The page being built depends very much on the user's "ID". I am not sure how or where to store the user's login. I am not sure whether I should use a session variable (e.g. Session["userId"]), or some other method. The problem I see with session variables is that it's difficult to time out sessions. Note: I'm using C# 3.5 with ASP.NET in Visual Studio 2008.

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  • How can code in a JavaScript file get the file's URL?

    - by dalbaeb
    I need to dynamically load a CSS stylesheet into a page that's on a different domain. How can I get the complete URL of the JS file to use in the href attribute of the stylesheet? For instance, here is the structure: http://bla.com/js/script.js http://bla.com/css/style.css I want to dynamically load the stylesheet into a page http://boo.net/index.html. The problem is, I don't know the bla.com bit in advance, just the fact that the stylesheet is in ../css/ relative to the JS file. The script is, of course, included on index.html. jQuery's fine too.

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  • MVC more specified models should be populated by more precise query too?

    - by KevinUK
    If you have a Car model with 20 or so properties (and several table joins) for a carDetail page then your LINQ to SQL query will be quite large. If you have a carListing page which uses under 5 properties (all from 1 table) then you use a CarSummary model. Should the CarSummary model be populated using the same query as the Car model? Or should you use a separate LINQ to SQL query which would be more precise? I am just thinking of performance but LINQ uses lazy loading anyway so I am wondering if this is an issue or not.

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  • Jquery UI modal (popup box) control size and hide by default

    - by user782104
    jsfddle page I am currently using bootstrap modal , which is a jquery plugin to create a popup box, here is its documentation, only few lines, so it takes a minute to read only I encountered problem in 3 aspect : How can i define the size of the modal(pop up box)? I tried: <div class="modal" id="myModal" style="width:800px;height:900px;"> but it does not display correctly. And how can i hide the modal by default, it currently display when i enter the page I tried the method in doucment $(document).ready(function() { $('#myModal').modal("hide"); } ); but not working as well. Thank you

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  • Why does code need to be reloaded in Rails 3?

    - by Venkat D.
    I am a former PHP developer learning Rails and Sinatra. In PHP, every page request loaded all of the required files. If I changed some code and refreshed the page, I could be sure that the code was fresh. In Rails 3, Controller code is fresh on every request. However, if I modify any code in the /lib folder, I need to restart the server so the changes take effect. Why does this happen? Is it something to do with the way Ruby is designed? Is Rails doing some optimizations to avoid reloading code on every request? Thanks!

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  • Drupal, Themekey module doesn't work for a user

    - by Patrick
    hi, Themekey module, (that I use to switch the theme on specific pages of my backend), works for my first Drupal user but it doesn't work for the second Drupal user. In other words, the second user see a page in its default theme. I was wondering if I have to create again the account for this user, and why ThemeKey module doesn't apply consistently to all users. The page I'm customizing a view from which you can edit the content of the website. i've checked for permissions, but I couldn't find any difference between the 2 users. Thanks

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  • which one consume less resources? opening text file or make an sql query,both a thousand times ?

    - by imin
    hi I've a php website which displays recipes www.trymasak.my, to be exact. The recipes being displayed at the index page is updated about once a day. To get the latest recipes, I just use a mysql query which is something like "select recipe_name, page_views, image from table order by last_updated". So if I got 10000 visitors a day, obviously the query would be made 10000 times a day. A friend told me a better way (in terms of reducing server load) is when I update the recipes, I just put in the latest recipe details (names,images etc) into a text file, and make my page instead of querying a same query for 10,000 times, just get the data from the text file. Is his suggestion really better? If yes, which is the best php command should I use to open, read and close the text file? thanks

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  • Prioritize file sharing capabilities in Windows Server 2008

    - by cmbrnt
    I've got a server running Windows Server 2008, and use it mainly for sharing files throughout the domain from a number of disks. It's running on VMware ESXi 4.0, in case that matters. My problem is that when I log in to the server to check user permissions etc, the access speed the files on the remote disks almost grinds to a halt. I havn't been able to measure the speeds, but I would guess it slows down to about 100kB/s as soon as I log in. This is on a gigabit network and the problems are equal for all users, even the ones connected to the same switch as the server. I've assigned 2 GB RAM to the server, and reserved it 1,5Ghz processor power. I don't have to do anything special on the server for this halt to occur. How can I make sure file sharing is prioritized on the server, so no matter what applications I'm using it will always make sure file sharing works properly? Could this be a VMware issue?

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  • Controller should not have domain logic. How faithful should one adhere to this tenet?

    - by Hao
    Quoting from page 49 of Pro ASP.NET MVC book It is certainly possible to put domain logic into a controller, even though you shouldn’t, just because it seems like it will work anyway. It’s easy to avoid this if you imagine that you have multiple UI technologies (e.g., an ASP.NET MVC application plus a native iPhone application) operating on the same underlying business domain layer (and maybe one day you will!). With this in mind, it’s clear that you don’t want to put domain logic into any of the UI layers. Why he seems to contradict himself on page 172? [HttpPost] public ActionResult CheckOut(Cart cart, ShippingDetails shippingDetails) { // Empty carts can't be checked out if (cart.Lines.Count == 0) ModelState.AddModelError("Cart", "Sorry, your cart is empty!"); if (ModelState.IsValid) { orderSubmitter.SubmitOrder(cart, shippingDetails); cart.Clear(); return View("Completed"); } else // Something was invalid return View(shippingDetails); } Related to: How to avoid placing domain logic in controller?

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  • Getting a divs z-index to overlap a div with absolute positioning

    - by Paul Herron
    Does anyone know how I could get the logo at the top of my page to appear on top of the curtains. http://nuigums.tumblr.com/ The logo is within a section tag along with the rest of the content with a z-index of 2, which is required to get the footer reveal effect I want. The curtain has a z-index of 3. I tried setting the z-index of the logo div to 4 but I presume the fact that the sections styling overrides that? I would like the logo to scroll with the content of the page also. Thanks. :)

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  • Preventing click event with jQuery drag and drop

    - by Sasha Yanovets
    I have an elements on page that are draggabe with jQuery. These elements have click event wich navigates to another page (ordinary links for example). What is the best way to prevent click from firing on dropping such element, while allowing clicking it in not drag and drop state? I have this problem with sortable elements, but think it is good to have solution for general drag and drop. I've solved the problem for myself. After that found that same solution exists for Scriptaculous, but maybe someone have a better way to achieve that.

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  • Can I modify an ASP.NET AJAX History Point?

    - by Nick
    I'm using ASP.NET 3.5 with AJAX and have enabled history on the Script Manager. I have 2 pages, Default.aspx and Default2.aspx. I'm using the AJAX History on the Default.aspx page and saving history points on the server-side. There are some dropdowns on Default.aspx that I don't want to save a history point for each change but would like to save the latest state so that when I click on a link on Default.aspx that navigates to Default2.aspx, when I click the back button on Default2.aspx to return I want the dropdowns to reflect what they were prior to clicking on the hyperlink. So what I'd like to do is modify the history point that I originally set on one of my ajax async postbacks on the client-side before the page navigates away to Default2.aspx. There is a location.hash javascript property that looks like it may do what I want but when I modify the value the Script Manager Navigate event is firing. Is there a way to prevent this event from firing? And would this then do the job?

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