I have a bunch of htmls in the webserver context (outside the application context) in the htdocs area. These htmls use SSI to call other htmls.
Here's the problem:
When I use c:import to call the main html into the jsp, the secondary htmls inside the main html don't render / are not processed.
Is there a way to get the main html to "compile" and then return to the jsp?
JSP codes:
<c:import url="<%=/folder/Header.html%>"
HTML server side logic that needs to be processed:
<!--#include virtual="/abc/xyz.html" -->
<!--#if expr='"$Category" = "someCategory"' -->
<!--#echo var="pageTitle" -->
The prototypes were given as all htmls, so everything was in the web context and all files worked fine. The issue is moving the top layer to JSP and keeping the rest of the layers as HTML. (Its a requirement)
Any solutions /thoughts/ ideas would be welcome! Thanks for your asssistance!
Wave
EDIT: Ok, I'm getting the Header.html in an iFrame because that will initiate a new HTTP request (and thus have access to the SSI logic).
<iframe id="testSSI" src ="http://somesite.com/subfolder/testssi_1.html?pageTitle=Applications" frameborder="0" width="800px" height="300"></iframe>
The parameters are sent in the URL and I've managed to extract the control parameters using js.
My query has reduced to this:
How can I access this js value "Applications" in the SSI logic? Is it possible to set is as an environment variable? That could be pulled by the SSI logic.. I realise that the Js will run after the SSI is done, but hoping someone here would be able to help.
Thanks!
Thanks, got it done.
I accessed the parameter in SSI by using the QUERY_STRING environment variable.
Example of html call:
http://somesite.com/subfolder/testssi_1.html?Applications
Example of how i retrieved the value:
<!--#set var="pageTitle" value="$QUERY_STRING" -->
<!--#if expr=" ${pageTitle} = Program " -->
do something
<!--#else -->
do something else
<!--#endif -->
The objective here:
We use a JAVA framework. But Marketing wanted content to be editable by them in a separate process.This way, they can change the content frequently with out the intervention on the jsp / java team. (Eg. change header look and feel, add new links, etc)
Hope this helps someone out later. :)
Wave
Edit: In the example above -> "Applications" will take the logic to the else section..
In addition, to send name value pairs:
http://somesite.com/subfolder/testssi_1.html?name=Applications&app=Demo
you can reference them as:
<!--#if expr=" ${QUERY_STRING} = /name=Applications/ " -->
AND
<!--#if expr=" ${QUERY_STRING} = /app=Demo/ " -->
Related
I am trying to build a universal header file that I can include in each .html file on my site. My header contains several dropdown tabs, and one of the tabs is always highlighted (depending on which page the user is on). So I want to do something like a server side include for the header, but I also want to give it a variable so that it knows which tab to highlight, something like this:
<div class="topmenu">
<ul>
<someScript>
if (variable=="home") {
print "<li class='current'>";
} else {
print "<li>";
}
</someScript>
...
My server is IIS 7 and doesn't support PHP, and I don't want to rename all my files to *.asp so that I can use ASP. How could I go about this?
By the extension I guess you would use Classic ASP. Then something like this should work:
<!--#include file="header.asp"-->
You can put this in each file you want to have a header.
Of couse, you should create that "header.asp" page first ;)
For highligthing the tab of the page you're in, there're several methods.
IMHO, I suggest a clientside script to do that. JS or jQuery of course.
You could check the file name of the URL you are in and give the proper class to the tab so it will be highligthed.
Example ( jQuery needed ):
var currentPage = window.location.pathname.substring(url.lastIndexOf('/')+1);
if(currentPage == 'default.asp') $('li.homepage a').addClass('current');
This simple code retrives the file name and, by it, add a class to the corresponding element in your navigation.
Of course this is a conceptual script, you'd better adapt it to your page.
I'm trying to render a .html webpage using #Renderpage() method in Webmatrix but the .html extension is not supported by the method. I guess the method only supports cshtml extensions. Is there a way I can render html pages dynamically on my site (Webmatrix). I dont want to use an iframe because I'll definitely have issues with my jquery files.
I attempted something i feel is safe yet feels unsafe. I resolved to read the html file and inject it to the DOM manually using:
Array html = null;
var mypage = Server.MapPath(page);
if(File.Exists(mypage)){
html = File.ReadAllLines(mypage);
}
After reading the file.....i injected it to the DOM
<div class="s_content s fontfix left s_content2 downdown">
#foreach (var data in html) {
<text>#Html.Raw(data)</text>
}
</div>
All this runs on compilation time before the page is created for rendering.....I attempted some security measures by attempting to inject server-side C# code in the HTML file but was useless. Makes me feel safe atleast. Is this risky? What is the possible threat to this alternative. i wish i can still have an alternative proper solution from the house. Thanks though.
Assuming #Renderpage() doesn't support HTML files, why don't you try Jquery.load or Ajax. There are lots of tutorials based on dynamic loading of html content.
I do something similar but I don't use #Renderpage or an html file. Instead I am using the "onclick" event and a javascript function which opens a cshtml file. You just put this and the java script function in your main cshtml file in the hmtl section. It will open a file in the current directory called my_window.cshtml when clicked
<a onclick=openWin("my_window",700,850);>Open when clicked</a>
<script type="text/javascript">
function openWin(url, width, height)
{
myWindow=window.open(url,'_blank','width='+width+',height='+height);
myWindow.focus();
}
Hope this helps!
Suppose I want to embed the latest comic strip of one of my favorite webcomics into my site as a kind of promotion for it. The webcomic has the strip inside of a div with an id, so I figured I can just embed the div in my site, except that I couldn't find any code examples for how to do it (they all show how to embed flash or a whole website).
Can someone please show me (or tell) how it's done?
PS I'd rather not use server side scripting or external services (which is what is often recommended for embedding RSS).
Update - Cross domain request with jQuery (on client side)
Yesterday I was browsing James Padolsey's blog, where he posted a great article, on how to do cross domain request with jQuery, also Chris Heilmann has a nice DEMO.
The principle is to use YQL -> a yahoo api for web page queries, where you receive a JSON with all the html. Happy scraping :)
Scrape remote data with php, load with jQuery
What about considering simple AJAX call, that would intercept the comic element and update with its contents your <div id="update-comic" /> primarily used for this purpose?
Also you will use a simple php to get the remote page, cause you cannot make ajax call on another domain
note: user must have JavaScript enabled, also following code uses jQuery library
Putting it all together
on your page, where you want to display remote comic strip create a div only for this purpose, lets call it update-comic
<div id="update-comic">
<!-- here comes scraped content -->
</div>
write down the php, call it comic-scrape.php, it will download the html from remote page, you should consider caching the response and updating it on a specified interval (e.g. 30min, 1hr, your call.. :))
server performance should not suffer after simple cache checking implementation
<?php
$url = 'http://www.example.com/';
$response = file_get_contents($url);
echo $response;
now comes the jQuery magic, where you make ajax call on your php scraper and take only the relevant element you are interested in. Place this script inside your view page (where you have your <div id="update-comic" />
<script type="text/javascript">
$(function () {
// set all your required variables
var
localUrl = '/comic-scrape.php',
elementId = '#remote-comic-id',
elementToUpdate = $('#update-comic');
// update the local elementToUpdate with elementId contents
// from your php in localUrl
elementToUpdate.load(localUrl + ' ' + elementId;
});
</script>
I hope, I covered everything.
Employing simplexml and xpath
As philfreo suggested in comment, a viable solution could also contain selecting the required id server-side. It is very easy with use of php's simplexml and a little xpath:
<?php
// set remote url and div id to be found
$elementId = 'remote-comic-id';
$url = 'http://www.example.com/';
// instantiate simple xml element and populate from $url
$xml = new SimpleXMLElement($url, null, true);
// find required div by id
$result = $xml->xpath("//div[id={$elementId}]");
// take first element from array, which is our desired div
$div = array_pop($result);
echo $div;
It's impossible because you cannot manipulate iframe/frame content. Using iframe tag will just modify content in tag, but not the src.
Neither with AJAX, because you have to be on the same domain.
So, for example, you can use PHP with cURL or quite simply with fopen.
You can just use an iframe. The content isn't literally on that page, but it looks like it.
Here's an example: http://www.w3schools.com/TAGS/tryit.asp?filename=tryhtml_iframe
It looks like this:
<iframe src ="http://www.example.com/index.html" width="100%" height="300"></iframe>
<embed src="url of your comic" width="300" height="250" />
I'm sure this topic comes up all the time,
But I can't seem to fine a concise answer.
I've got a vertical menu bar that I want to reuse in webpages (>20).
The Menu Bar is coded in HTML and uses uses: UL, LI, A, <Div> tags, and CSS. We need this:
Reusable
Maintainable
Scalable
So we don't have to modify all pages every time we add a page.
We'd rather avoid a coding approach if possible. We could live with just one master file that we edit as needed. Since we're using CSS and <div>s, I don't think frames scale for us. What can we do?
Server side includes are the way to go if you don't want to use a programming language.
They take this form:
<!--#include virtual="menu.html" -->
and will be inserted in the page wherever you put that tag in your HTML. It requires server side parsing, so your web server must have server side includes enabled. You can try it out, and if it doesn't work, contact your server host to see if you can get them enabled. If it's Apache, there's a method of enabling them via .htaccess files as well.
In order to do this, you'll have to use some server side technology. For instance you could...
include them in php
put them in the master page in .net
put this in a partial or a layout page in rails
Some reading:
http://us.php.net/manual/en/function.include.php
http://msdn.microsoft.com/en-us/library/wtxbf3hh.aspx
Another solution would be to create all this using Javascript, but please don't do it like that :)
html:
<script type="text/javascript" src="hack.js"></script>
<div id="mymenu">
</div>
hack.js:
function createMenu(){
$("#mymenu").html("all the html of your menu");
}
Without any server side script or Javascript you can use object or iframe tags.
http://www.w3schools.com/tags/tag_object.asp
http://www.w3schools.com/tags/tag_iframe.asp
The only thing to care is to indicate target="parent" in links.
Hope it helps
Using a w3 script..
index.html
<!DOCTYPE html>
<html>
<script src="http://www.w3schools.com/lib/w3data.js"></script>
<body>
<div w3-include-html="header.html"></div>
<div w3-include-html="nav.html"></div>
<script>
w3IncludeHTML();
</script>
</body>
</html>
header.html
<h1>Title</h1>
nav.html
<h2>Your nav</h2>
See also: http://www.w3schools.com/howto/howto_html_include.asp
And don't forget to test this code on your localhost.
I've done this two separate ways - one using server side (PHP) and one using Javascript includes (for demos that need to be able to run without any internet connection or server capabilities).
For PHP includes your pages will have to end with .php rather than .htm or .html, and these are very ideal to replace your header, footer, navigation, etc. Anything that is repeated on multiple pages.
Basically you would create your normal code then copy and paste the code you want to break out - in this example, your navigation - and save it in another file called (for example) inc_navigation.htm (this page can be called .htm).
Then in your actual pages you'd use the following code:
<?php include('inc_navigation.htm') ?>
That would insert your navigation at that point, if you had a change to make you'd make it to the .htm file and it would propagate to any page with that included.
For javascript includes you will have to include the following line at the top of every document where you want to include your navigation:
<script type="text/javascript" src="includes.js"></script>
Then you'll create a document called includes.js.
At the top of this document you'll declare your navigation variable:
var navigation = new Array(); // This is for the navigation.
Then a little ways down in that same document you need to actually outline your navigation code (the line numbers in the square brackets are crucial - keep them in order and start with 0 - you cannot have line breaks in this code so every line of code has to be a new line):
// ==================== Navigation ==================== //
navigation[0] = '<div id="tab_navigation">';
navigation[1] = '<ul id="dropline">';
navigation[2] = '<li><b>Home</b></li>';
navigation[3] = '<li><b>About Us</b></li>';
navigation[4] = '</ul>';
navigation[5] = '</div><!-- Close TAB NAVIGATION -->';
Then a little ways after that you'll actually insert the javascript that will put that code into your page (it doesn't actually put it there but rather makes it accessible in the page without actually altering the code of the .htm page - so if you view source you'll see the reference to the code not the code itself).
function show(i)
{
for (x in i)
{
document.write(i[x]+'\n')
}
}
Finally - in your .htm document, say for your index.htm page, you'll replace your navigation code (that you put in the above block called navigation) with this:
<script type="text/javascript">show(navigation);</script>
Where that name after SHOW and in the parenthesis is the name of your variable (declared earlier).
I have sites showing both methods in use if you'd like to see them just send me a message.
I was facing the same thing. Then, I created a new file for storing the html of the navigation bar.
I created a file navbar.html which had all my navigation bar code.
Then, in your main html file where you want navigation bar, just include this file by using jquery.
$(document).ready(function() {
$('#navigation').load('navbar.html');
});
Then at the place where you want navigation bar, just add this line:
<div id="navigation"></div>
As a modern answer to a six year old question: Web Components are specifically reusable HTML components, and Polymer is possibly the most popular implementation of it at the moment. Currently virtually no browser has native support for Web Components, so at the very least a Javascript polyfill is required.
If you would use PHP, all you have to do is use the include command, no coding beyond this one command.
Also, check out server side includes
So far one of the best solutions I have found is to model the menus after the Son of Suckerfish XHTML/CSS solution that is pretty well documented on the internet now combined with some logic on the server to render the unordered list. By using unordered lists you have a couple different options on how to output the results, but as long as the menu has some basic hierarchy you can generate it. Then for the actual page all you need to do is include a reference to the menu generating function.
I was searching for a way to write a reusable navigation menu that toggled(show/hide) when clicking a button. I want to share a solution that worked for me in case anyone else is looking to do the same. This solution uses jQuery, html, and css.
Add this line of code to your head tag in your main index.html file:
<script src="https://code.jquery.com/jquery-1.10.2.js"></script>
Add div for your nav in body tag:
<div id="mySidenav" class="sidenav"></div>
<script>
$(document).ready(function(){
$("button").click(function(){
$("#mySidenav").load("nav.html").toggle().width("400pt");
});
});
</script>
Create a html file that will be where your navigation menu resides. My file is called nav.html and inside the file the contents look like this:
have you found your one true musubi?`
item2
item3
Is there a decent way with static HTML/XHTML to create common header/footer files to be displayed on each page of a site? I know you can obviously do this with PHP or server side directives, but is there any way of doing this with absolutely no dependencies on the server stitching everything together for you?
Edit: All very good answers and was what I expected. HTML is static, period. No real way to change that without something running server side or client side. I've found that Server Side Includes seem to be my best option as they are very simple and don't require scripting.
There are three ways to do what you want
Server Script
This includes something like php, asp, jsp.... But you said no to that
Server Side Includes
Your server is serving up the pages so why not take advantage of the built in server side includes? Each server has its own way to do this, take advantage of it.
Client Side Include
This solutions has you calling back to the server after page has already been loaded on the client.
JQuery load() function can use for including common header and footer. Code should be like
<script>
$("#header").load("header.html");
$("#footer").load("footer.html");
</script>
You can find demo here
Since HTML does not have an "include" directive, I can think only of three workarounds
Frames
Javascript
CSS
A little comment on each of the methods.
Frames can be either standard frames or iFrames. Either way, you will have to specify a fixed height for them, so this might not be the solution you are looking for.
Javascript is a pretty broad subject and there probably exist many ways how one might use it to achieve the desired effect. Off the top of my head however I can think of two ways:
Full-blown AJAX request, which requests the header/footer and then places them in the right place of the page;
<script type="text/javascript" src="header.js"> which has something like this in it: document.write('My header goes here');
Doing it via CSS would be really an abuse. CSS has the content property which allows you to insert some HTML content, although it's not really intended to be used like this. Also I'm not sure about browser support for this construct.
The simplest way to do that is using plain HTML.
You can use one of these ways:
<embed type="text/html" src="header.html">
or:
<object name="foo" type="text/html" data="header.html"></object>
You can do it with javascript, and I don't think it needs to be that fancy.
If you have a header.js file and a footer.js.
Then the contents of header.js could be something like
document.write("<div class='header'>header content</div> etc...")
Remember to escape any nested quote characters in the string you are writing.
You could then call that from your static templates with
<script type="text/javascript" src="header.js"></script>
and similarly for the footer.js.
Note: I am not recommending this solution - it's a hack and has a number of drawbacks (poor for SEO and usability just for starters) - but it does meet the requirements of the questioner.
you can do this easily using jquery. no need of php for such a simple task.
just include this once in your webpage.
$(function(){
$("[data-load]").each(function(){
$(this).load($(this).data("load"), function(){
});
});
})
now use data-load on any element to call its contents from external html file
you just have to add line to your html code where you want the content to be placed.
example
<nav data-load="sidepanel.html"></nav>
<nav data-load="footer.html"></nav>
The best solution is using a static site generator which has templating/includes support. I use Hammer for Mac, it is great. There's also Guard, a ruby gem that monitors file changes, compile sass, concatenate any files and probably does includes.
The most practical way is to use Server Side Include. It's very easy to implement and saves tons of work when you have more than a couple pages.
HTML frames, but it is not an ideal solution. You would essentially be accessing 3 separate HTML pages at once.
Your other option is to use AJAX I think.
You could use a task runner such as gulp or grunt.
There is an NPM gulp package that does file including on the fly and compiles the result into an output HTML file. You can even pass values through to your partials.
https://www.npmjs.com/package/gulp-file-include
<!DOCTYPE html>
<html>
<body>
##include('./header.html')
##include('./main.html')
</body>
</html>
an example of a gulp task:
var fileinclude = require('gulp-file-include'),
gulp = require('gulp');
gulp.task('html', function() {
return gulp.src(['./src/html/views/*.html'])
.pipe(fileInclude({
prefix: '##',
basepath: 'src/html'
}))
.pipe(gulp.dest('./build'));
});
You can try loading them via the client-side, like this:
<!DOCTYPE html>
<html>
<head>
<!-- ... -->
</head>
<body>
<div id="headerID"> <!-- your header --> </div>
<div id="pageID"> <!-- your header --> </div>
<div id="footerID"> <!-- your header --> </div>
<script>
$("#headerID").load("header.html");
$("#pageID").load("page.html");
$("#footerID").load("footer.html");
</script>
</body>
</html>
NOTE: the content will load from top to bottom and replace the content of the container you load it into.
No. Static HTML files don't change. You could potentially do this with some fancy Javascript AJAXy solution but that would be bad.
Short of using a local templating system like many hundreds now exist in every scripting language or even using your homebrewed one with sed or m4 and sending the result over to your server, no, you'd need at least SSI.
The only way to include another file with just static HTML is an iframe. I wouldn't consider it a very good solution for headers and footers. If your server doesn't support PHP or SSI for some bizarre reason, you could use PHP and preprocess it locally before upload. I would consider that a better solution than iframes.