如何使用jQuery创建简单的分页
郑俊美
How to create easy pagination with jQuery jQuery pagination. All we know, that when we facing with necessarity to display large amount of data – we starting thinking about adding pagination. So we split all our content to several pages. And in this case – each page contain some part of our information. As usual this is server-side pagination, where we extracting necessary amount data from database for each page. But commonly, in case of small (or middle) data sets – we don`t need such pagination. And we can just use user-side pagination using javascript to manage with our pages. Today I will show you how to create such pagination.
如何使用jQuery创建简单的分页 jQuery分页。 我们所知道的是，当我们需要显示大量数据时，我们开始考虑添加分页。 因此，我们将所有内容分为几页。 在这种情况下，每个页面都包含我们的部分信息。 与往常一样，这是服务器端分页，在此我们从数据库中为每个页面提取必要的数据量。 但是通常，在数据集较小(或中等)的情况下，我们不需要这种分页。 而且，我们可以只使用使用JavaScript的用户端分页来管理我们的页面。 今天，我将向您展示如何创建这种分页。
Here are samples and downloadable package:
以下是示例和可下载的软件包：
现场演示
[sociallocker]
[社交储物柜]
打包下载
[/sociallocker]
[/ sociallocker]
Ok, download the source files and lets start coding !
好的，下载源文件并开始编码！
步骤1. XHTML (Step 1. XHTML)
Here are our main HTML file:
这是我们的主要HTML文件：
index.html(由于进行了一些更正而已更新) (index.html (updated due few corrections))
<link rel="stylesheet" href="css/main.css" type="text/css" />
<script src="js/jquery.min.js"></script>
<script src="js/imtech_pager.js"></script>
<div class="example">
<h3><a href="#">Paragraph pagination sample</a></h3>
<div id="content">
<div class="z">Sergey LUKYANENKO - The Boy and the Darkness - Chapter 1. The Sun Kitten.</div>
<div class="z">Everything happened because I got ill.</div>
<div class="z">It was already two in the afternoon, and I was lying in bed flicking through "Peter Pan" - I must have read it a hundred times over. I had long since pulled off the bandage my mother had tied around my neck in the morning, and thrown it into a corner. I simply can't understand - how can cotton wool soaked in vodka possibly help a cough? I don't argue with my mum, of course, but after she leaves I look after myself in my own way - namely, lie in bed with a book and wait for my germs to get tired of such a boring method of passing time. It usually helps - perhaps not at once, but after a day or three. A good thing, really, that the street outside looked quite miserable - the sun poking out for brief moments, only to make room for a patchy, nasty drizzle. Though, the sun never actually peeked into the room - our house is so unfortunately placed that it is in the shadows of the new nine-floor high-rises on every side. "The only use for such a flat is to grow mushrooms", - dad used to say, back when he still lived with us.</div>
<div class="z">I put my book down on the floor next to the bed, and lay on my back. Perhaps, had I shut my eyes now, nothing would have happened. But there I was, lying staring at the ceiling and listening to the ticking of the clock in the hallway.</div>
<div class="z">And a speck of sunlight jumped into the room through the glass. Small - the size of my hand - but surprisingly bright. As though the window was open, with bright summer sun outside. Someone was probably playing with a mirror on the balcony of the house across the street.</div>
<div class="z">The rabbit floated across the ceiling, climbed down a wall, made a vase on the dressing-table glint, and stopped, shaking slightly, on my headrest.</div>
<div class="z">- Don't go, - I said for some reason, knowing that in a moment the mirror would shift and the rabbit would leave my room forever. - Stay...</div>
<div class="z">And that's when it all started.</div>
<div class="z">The sun rabbit tore free of the bed and floated in the air. I didn't even realise at first that such things don't happen. It was only when the flat spot hanging in the air started puffing out to form a fuzzy orange ball that I understood - a miracle had happened.</div>
<div class="z">Four paws stretched from orange glowing fur, followed by a tail and a head. Green cat eyes blinked and gazed at me steadily. And overall, in fact, the rabbit looked more like a kitten than anything else. Except he was hanging in the air, glowing, and seemed light as the fairy fluff that floats away if one blows gently.</div>
<div class="z">- Hello, - purred the kitten. - Thank you for the invitation.</div>
<div class="z">I closed my eyes for a second, but when I opened them again, the kitten hadn't disappeared. In fact, he'd flown closer.</div>
<div class="z">- I don't believe in fairy tales, - I told myself. - I'm grown up now.</div>
<div class="z">- Well, compared to the girl who was holding the True Mirror, you are quite grown up, - declared the kitten, unperturbed, and lowered himself onto the blanket. I glanced over - to see if there would be smoke - but everything seemed all right. I could feel warmth with my chest, but not strong. And the kitten tilted his head and added: - But one can't really call you adult, either. How old are you? Ten, maybe?</div>
<div class="z">- Fourteen, - I replied, finding myself calming down at such a mundane question. - Who're you?</div>
<div class="z">- A sun rabbit, - replied the kitten, examining himself curiously. - What an appearance.. do I look like one?</div>
<div class="z">- <b>Like</b> what?</div>
<div class="z">- Like a <p style="font-weight:bold;color:red;">sun</p> rabbit.</div>
<div class="z">- More like a kitten.</div>
<div class="z">- Hardly better, - stated the Kitten sadly and stretched out. And I didn't think of anything better than repeating:</div>
<div class="z">- Who're you?</div>
<div class="z">- But we have already arrived at a consensus! - said the Kitten with sudden hurt. - A sun rabbit, or more precisely - a kitten, because I look far more like one! What is there not to understand?</div>
<div class="z">I found myself tongue-tied. Well, naturally, a small green animal that eats stones would simply be - a small green stone-eater. Simple. And a sun rabbit is a sun kitten, because he looks nothing like a rabbit.</div>
<div class="z">- So you mean - any rabbit can come to life if one just calls it? - I asked cautiously. For some reason it seemed to me the Kitten would be hurt at the question again. But he just shook his head proudly:</div>
<div class="z">- As if! Any! Only True Light, reflected in a True Mirror, can come to life.</div>
</div>
<div id="pagingControls"></div>
</div>
<script type="text/javascript">
var pager = new Imtech.Pager();
$(document).ready(function() {
pager.paragraphsPerPage = 5; // set amount elements per page
pager.pagingContainer = $('#content'); // set of main container
pager.paragraphs = $('div.z', pager.pagingContainer); // set of required containers
pager.showPage(1);
});
</script>
<link rel="stylesheet" href="css/main.css" type="text/css" />
<script src="js/jquery.min.js"></script>
<script src="js/imtech_pager.js"></script>
<div class="example">
<h3><a href="#">Paragraph pagination sample</a></h3>
<div id="content">
<div class="z">Sergey LUKYANENKO - The Boy and the Darkness - Chapter 1. The Sun Kitten.</div>
<div class="z">Everything happened because I got ill.</div>
<div class="z">It was already two in the afternoon, and I was lying in bed flicking through "Peter Pan" - I must have read it a hundred times over. I had long since pulled off the bandage my mother had tied around my neck in the morning, and thrown it into a corner. I simply can't understand - how can cotton wool soaked in vodka possibly help a cough? I don't argue with my mum, of course, but after she leaves I look after myself in my own way - namely, lie in bed with a book and wait for my germs to get tired of such a boring method of passing time. It usually helps - perhaps not at once, but after a day or three. A good thing, really, that the street outside looked quite miserable - the sun poking out for brief moments, only to make room for a patchy, nasty drizzle. Though, the sun never actually peeked into the room - our house is so unfortunately placed that it is in the shadows of the new nine-floor high-rises on every side. "The only use for such a flat is to grow mushrooms", - dad used to say, back when he still lived with us.</div>
<div class="z">I put my book down on the floor next to the bed, and lay on my back. Perhaps, had I shut my eyes now, nothing would have happened. But there I was, lying staring at the ceiling and listening to the ticking of the clock in the hallway.</div>
<div class="z">And a speck of sunlight jumped into the room through the glass. Small - the size of my hand - but surprisingly bright. As though the window was open, with bright summer sun outside. Someone was probably playing with a mirror on the balcony of the house across the street.</div>
<div class="z">The rabbit floated across the ceiling, climbed down a wall, made a vase on the dressing-table glint, and stopped, shaking slightly, on my headrest.</div>
<div class="z">- Don't go, - I said for some reason, knowing that in a moment the mirror would shift and the rabbit would leave my room forever. - Stay...</div>
<div class="z">And that's when it all started.</div>
<div class="z">The sun rabbit tore free of the bed and floated in the air. I didn't even realise at first that such things don't happen. It was only when the flat spot hanging in the air started puffing out to form a fuzzy orange ball that I understood - a miracle had happened.</div>
<div class="z">Four paws stretched from orange glowing fur, followed by a tail and a head. Green cat eyes blinked and gazed at me steadily. And overall, in fact, the rabbit looked more like a kitten than anything else. Except he was hanging in the air, glowing, and seemed light as the fairy fluff that floats away if one blows gently.</div>
<div class="z">- Hello, - purred the kitten. - Thank you for the invitation.</div>
<div class="z">I closed my eyes for a second, but when I opened them again, the kitten hadn't disappeared. In fact, he'd flown closer.</div>
<div class="z">- I don't believe in fairy tales, - I told myself. - I'm grown up now.</div>
<div class="z">- Well, compared to the girl who was holding the True Mirror, you are quite grown up, - declared the kitten, unperturbed, and lowered himself onto the blanket. I glanced over - to see if there would be smoke - but everything seemed all right. I could feel warmth with my chest, but not strong. And the kitten tilted his head and added: - But one can't really call you adult, either. How old are you? Ten, maybe?</div>
<div class="z">- Fourteen, - I replied, finding myself calming down at such a mundane question. - Who're you?</div>
<div class="z">- A sun rabbit, - replied the kitten, examining himself curiously. - What an appearance.. do I look like one?</div>
<div class="z">- <b>Like</b> what?</div>
<div class="z">- Like a <p style="font-weight:bold;color:red;">sun</p> rabbit.</div>
<div class="z">- More like a kitten.</div>
<div class="z">- Hardly better, - stated the Kitten sadly and stretched out. And I didn't think of anything better than repeating:</div>
<div class="z">- Who're you?</div>
<div class="z">- But we have already arrived at a consensus! - said the Kitten with sudden hurt. - A sun rabbit, or more precisely - a kitten, because I look far more like one! What is there not to understand?</div>
<div class="z">I found myself tongue-tied. Well, naturally, a small green animal that eats stones would simply be - a small green stone-eater. Simple. And a sun rabbit is a sun kitten, because he looks nothing like a rabbit.</div>
<div class="z">- So you mean - any rabbit can come to life if one just calls it? - I asked cautiously. For some reason it seemed to me the Kitten would be hurt at the question again. But he just shook his head proudly:</div>
<div class="z">- As if! Any! Only True Light, reflected in a True Mirror, can come to life.</div>
</div>
<div id="pagingControls"></div>
</div>
<script type="text/javascript">
var pager = new Imtech.Pager();
$(document).ready(function() {
pager.paragraphsPerPage = 5; // set amount elements per page
pager.pagingContainer = $('#content'); // set of main container
pager.paragraphs = $('div.z', pager.pagingContainer); // set of required containers
pager.showPage(1);
});
</script>
As you see – we put all content inside <div id="content"> element into P paragraphs. And than, using jQuery – doing small initialization of our pagination into prepared <div id="pagingControls"></div> element. Inside our initialization js script – you can see that I set our container element, name of paragraph tag, and amount paragraphs per page (5). All easy.
如您所见–我们将<div id =“ content”>元素内的所有内容放入P段落中。 然后，使用jQuery –对已准备好的<div id =“ pagingControls”> </ div>元素进行分页小初始化。 在初始化js脚本中–您可以看到我设置了我们的容器元素，段落标签的名称以及每页的段落数(5)。 一切都容易。
Update! I changed tag for paragraphs <p> to <div class="z"> for better selections. Now it able to handle with inline styles and tags
更新！ 我将段落<p>的标记更改为<div class =“ z”>，以获得更好的选择。 现在它可以处理内联样式和标签
步骤2. CSS (Step 2. CSS)
Here are used CSS file. Just few styles for our demo:
这是用过CSS文件。 我们的演示仅提供几种样式：
css / styles.css (css/styles.css)
body{background:#eee;font-family:Verdana, Helvetica, Arial, sans-serif;margin:0;padding:0}
.example{background:#FFF;width:1000px;font-size:80%;border:1px #000 solid;margin:0.5em 10% 0.5em;padding:1em 2em 2em;-moz-border-radius:3px;-webkit-border-radius:3px}
#content p{text-indent:20px;text-align:justify;}
#pagingControls ul{display:inline;padding-left:0.5em}
#pagingControls li{display:inline;padding:0 0.5em}
body{background:#eee;font-family:Verdana, Helvetica, Arial, sans-serif;margin:0;padding:0}
.example{background:#FFF;width:1000px;font-size:80%;border:1px #000 solid;margin:0.5em 10% 0.5em;padding:1em 2em 2em;-moz-border-radius:3px;-webkit-border-radius:3px}
#content p{text-indent:20px;text-align:justify;}
#pagingControls ul{display:inline;padding-left:0.5em}
#pagingControls li{display:inline;padding:0 0.5em}
步骤3. JS (Step 3. JS)
Here are two JS files:
这是两个JS文件：
js / jquery.min.js (js/jquery.min.js)
Both – just jQuery library. Available in package.
两者-只是jQuery库。 封装形式。
js / imtech_pager.js(由于一些更正而更新) (js/imtech_pager.js (updated due few corrections))
var Imtech = {};
Imtech.Pager = function() {
this.paragraphsPerPage = 3;
this.currentPage = 1;
this.pagingControlsContainer = '#pagingControls';
this.pagingContainerPath = '#content';
this.numPages = function() {
var numPages = 0;
if (this.paragraphs != null && this.paragraphsPerPage != null) {
numPages = Math.ceil(this.paragraphs.length / this.paragraphsPerPage);
}
return numPages;
};
this.showPage = function(page) {
this.currentPage = page;
var html = '';
this.paragraphs.slice((page-1) * this.paragraphsPerPage,
((page-1)*this.paragraphsPerPage) + this.paragraphsPerPage).each(function() {
html += '<div>' + $(this).html() + '</div>';
});
$(this.pagingContainerPath).html(html);
renderControls(this.pagingControlsContainer, this.currentPage, this.numPages());
}
var renderControls = function(container, currentPage, numPages) {
var pagingControls = 'Page: <ul>';
for (var i = 1; i <= numPages; i++) {
if (i != currentPage) {
pagingControls += '<li><a href="#" onclick="pager.showPage(' + i + '); return false;">' + i + '</a></li>';
} else {
pagingControls += '<li>' + i + '</li>';
}
}
pagingControls += '</ul>';
$(container).html(pagingControls);
}
}
var Imtech = {};
Imtech.Pager = function() {
this.paragraphsPerPage = 3;
this.currentPage = 1;
this.pagingControlsContainer = '#pagingControls';
this.pagingContainerPath = '#content';
this.numPages = function() {
var numPages = 0;
if (this.paragraphs != null && this.paragraphsPerPage != null) {
numPages = Math.ceil(this.paragraphs.length / this.paragraphsPerPage);
}
return numPages;
};
this.showPage = function(page) {
this.currentPage = page;
var html = '';
this.paragraphs.slice((page-1) * this.paragraphsPerPage,
((page-1)*this.paragraphsPerPage) + this.paragraphsPerPage).each(function() {
html += '<div>' + $(this).html() + '</div>';
});
$(this.pagingContainerPath).html(html);
renderControls(this.pagingControlsContainer, this.currentPage, this.numPages());
}
var renderControls = function(container, currentPage, numPages) {
var pagingControls = 'Page: <ul>';
for (var i = 1; i <= numPages; i++) {
if (i != currentPage) {
pagingControls += '<li><a href="#" onclick="pager.showPage(' + i + '); return false;">' + i + '</a></li>';
} else {
pagingControls += '<li>' + i + '</li>';
}
}
pagingControls += '</ul>';
$(container).html(pagingControls);
}
}
现场演示
结论 (Conclusion)
I hope that today’s sample was pretty easy. And it will useful for your projects. Do not forget to say thank you :) Good luck!
我希望今天的样本很简单。 这将对您的项目有用。 别忘了说谢谢:)祝你好运！
翻译自: https://www.script-tutorials.com/how-to-create-easy-pagination-with-jquery/
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