JQuery分页插件封装(源码来自百度,自己封装)

最近由于项目的需要,做了一个基于JQuery的表格分页插件封装,部分源码来源百度,经由自己封装完成。

下面是具体代码和说明,仅供参考。第一步可以先将我的HTML,CSS,JS这三部分的代码创建好后先运行看看,下图是文件目录展示。

html

<!DOCTYPE html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>jQuery表格分页</title>
<link rel="stylesheet" href="css/Pagebar_PC.css">
</head>
<body>
    <input type='hidden' id='current' />
    <input type='hidden' id='show' />
    <table id="y1">
        <tr>
            <th>标题1</th>
            <th>标题2</th>
            <th>标题3</th>
            <th>标题4</th>
            <th>标题5</th>
        </tr>
        <tr>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
            <td>1</td>
        </tr>
        <tr>
            <td>2</td>
            <td>2</td>
            <td>2</td>
            <td>2</td>
            <td>2</td>
        </tr>
        <tr>
            <td>3</td>
            <td>3</td>
            <td>3</td>
            <td>3</td>
            <td>3</td>
        </tr>
        <tr>
            <td>4</td>
            <td>4</td>
            <td>4</td>
            <td>4</td>
            <td>4</td>
        </tr>
        <tr>
            <td>5</td>
            <td>5</td>
            <td>5</td>
            <td>5</td>
            <td>5</td>
        </tr>
        <tr>
            <td>11</td>
            <td>12</td>
            <td>13</td>
            <td>14</td>
            <td>15</td>
        </tr>
        <tr>
            <td>11</td>
            <td>12</td>
            <td>13</td>
            <td>14</td>
            <td>15</td>
        </tr>
        <tr>
            <td>11</td>
            <td>12</td>
            <td>13</td>
            <td>14</td>
            <td>15</td>
        </tr>
        <tr>
            <td>11</td>
            <td>12</td>
            <td>13</td>
            <td>14</td>
            <td>15</td>
        </tr>
        <tr>
            <td>11</td>
            <td>12</td>
            <td>13</td>
            <td>14</td>
            <td>15</td>
        </tr>
        <tr>
            <td>21</td>
            <td>22</td>
            <td>23</td>
            <td>24</td>
            <td>25</td>
        </tr>
        <tr>
            <td>21</td>
            <td>22</td>
            <td>23</td>
            <td>24</td>
            <td>25</td>
        </tr>
        <tr>
            <td>21</td>
            <td>22</td>
            <td>23</td>
            <td>24</td>
            <td>25</td>
        </tr>
        <tr>
            <td>21</td>
            <td>22</td>
            <td>23</td>
            <td>24</td>
            <td>25</td>
        </tr>
        <tr>
            <td>21</td>
            <td>22</td>
            <td>23</td>
            <td>24</td>
            <td>25</td>
        </tr>
        <tr>
            <td>31</td>
            <td>32</td>
            <td>33</td>
            <td>34</td>
            <td>35</td>
        </tr>
        <tr>
            <td>31</td>
            <td>32</td>
            <td>33</td>
            <td>34</td>
            <td>35</td>
        </tr>
        <tr>
            <td>31</td>
            <td>32</td>
            <td>33</td>
            <td>34</td>
            <td>35</td>
        </tr>
        <tr>
            <td>31</td>
            <td>32</td>
            <td>33</td>
            <td>34</td>
            <td>35</td>
        </tr>
        <tr>
            <td>31</td>
            <td>32</td>
            <td>33</td>
            <td>34</td>
            <td>35</td>
        </tr>
        <tr>
            <td>41</td>
            <td>42</td>
            <td>43</td>
            <td>44</td>
            <td>45</td>
        </tr>
        <tr>
            <td>41</td>
            <td>42</td>
            <td>43</td>
            <td>44</td>
            <td>45</td>
        </tr>
        <tr>
            <td>41</td>
            <td>42</td>
            <td>43</td>
            <td>44</td>
            <td>45</td>
        </tr>
        <tr>
            <td>41</td>
            <td>42</td>
            <td>43</td>
            <td>44</td>
            <td>45</td>
        </tr>
        <tr>
            <td>41</td>
            <td>42</td>
            <td>43</td>
            <td>44</td>
            <td>45</td>
        </tr>
        <tr>
            <td>51</td>
            <td>52</td>
            <td>53</td>
            <td>54</td>
            <td>55</td>
        </tr>
        <tr>
            <td>51</td>
            <td>52</td>
            <td>53</td>
            <td>54</td>
            <td>55</td>
        </tr>
        <tr>
            <td>51</td>
            <td>52</td>
            <td>53</td>
            <td>54</td>
            <td>55</td>
        </tr>
        <tr>
            <td>51</td>
            <td>52</td>
            <td>53</td>
            <td>54</td>
            <td>55</td>
        </tr>
        <tr>
            <td>51</td>
            <td>52</td>
            <td>53</td>
            <td>54</td>
            <td>55</td>
        </tr>
        <tr>
            <td>1</td>
            <td>2</td>
            <td>3</td>
            <td>4</td>
            <td>5</td>
        </tr>
        <tr>
            <td>1</td>
            <td>2</td>
            <td>3</td>
            <td>4</td>
            <td>5</td>
        </tr>
        <tr>
            <td>1</td>
            <td>2</td>
            <td>3</td>
            <td>4</td>
            <td>5</td>
        </tr>
        <tr>
            <td>1</td>
            <td>2</td>
            <td>3</td>
            <td>4</td>
            <td>5</td>
        </tr>
        <tr>
            <td>1</td>
            <td>2</td>
            <td>3</td>
            <td>4</td>
            <td>5</td>
        </tr>
        <tr>
            <td>1</td>
            <td>2</td>
            <td>3</td>
            <td>4</td>
            <td>5</td>
        </tr>
        <tr>
            <td>1</td>
            <td>2</td>
            <td>3</td>
            <td>4</td>
            <td>5</td>
        </tr>
        <tr>
            <td>1</td>
            <td>2</td>
            <td>3</td>
            <td>4</td>
            <td>5</td>
        </tr>
        <tr>
            <td>1</td>
            <td>2</td>
            <td>3</td>
            <td>4</td>
            <td>5</td>
        </tr>
        <tr>
            <td>1</td>
            <td>2</td>
            <td>3</td>
            <td>4</td>
            <td>5</td>
        </tr>
    </table>
    <div id='page_nav_y1'></div>
    <script type="text/javascript" src="js/jquery.js"></script>
    <script type="text/javascript" src="js/Pagebar_PC.js"></script>
    <script type="text/javascript">
    $(function(){
        //page(table的ID,隐藏域ID1(存储当前页的页数),隐藏域ID2(存储一页显示的数量),分页组件ID,A标签默认类(类名自定义),选择时的类(设置活动时的样式类),一页显示的个数,table的含有th的tr数量)
        page('#y1','#current','#show','#page_nav_y1','.y1_page','active_page',10,1);
    });
    </script>
</body>
</html>

CSS

 

body,table,tr,th,td,div{
    margin:0;
    padding:0;
}
table,tr,th,td{
    border-collapse: collapse;
}
body{
    padding:10px;
}
#y1 tr{display: none;}
th,td{
    width: 150px;
    height: 30px;
    line-height: 30px;
    text-align: center;
    border:1px solid blue;
}
th:nth-of-type(1){background-color: red;}
th:nth-of-type(2){background-color: green;}
th:nth-of-type(3){background-color: yellow;}
th:nth-of-type(4){background-color: pink;}
th:nth-of-type(5){background-color: yellowgreen;}
#page_nav_y1{
    display: inline-block;
    margin-top: 8px;
}
#page_nav_y1 a{
    float: left;
    width:45px;
    height: 45px;
    line-height: 45px;
    text-align: center;
    border:1px solid gray;
    margin:2px;
    color:black;
    text-decoration:none;
    border-radius: 3px;
}
#page_nav_y1 a.disable{
    color:red;
    border:1px solid red;
    cursor: not-allowed;
}
.active_page{
    background:darkblue;
    color:white !important;
}
#page_nav_y1 a.prev_link,
#page_nav_y1 a.next_link{
    width:70px;
}

 js

 

//上一页
function prev(obj1,obj2,obj3,obj5,obj6,pageNum,tabNum){
    new_page = parseInt($(obj2).val()) - 1;
    if($('.'+obj6).prev(obj5).length==true){//判断是否存在前一个兄弟元素
        goto_page(obj1,obj2,obj3,obj5,obj6,new_page,pageNum,tabNum);
        if(pageNum == 2){//当页码只有两页时
            op1('.next_link');//下一页恢复
            op2('.prev_link');//上一页禁用
        }else{
            if(new_page > 0){
                op1('.next_link');//下一页恢复
            }else{
                op2('.prev_link');//上一页禁用
            }
        }
    }
}
//下一页
function next(obj1,obj2,obj3,obj5,obj6,pageNum,tabNum){
    new_page = parseInt($(obj2).val()) + 1;
    if($('.'+obj6).next(obj5).length==true){//判断是否存在后一个兄弟元素
        goto_page(obj1,obj2,obj3,obj5,obj6,new_page,pageNum,tabNum);
        if(pageNum == 2){//当页码只有两页时
            op1('.prev_link');//上一页恢复
            op2('.next_link');//下一页禁用
        }else{
            if(new_page < pageNum - 1){
                op1('.prev_link');//上一页恢复
            }else{
                op2('.next_link');//下一页禁用
            }
        }
    }
}
//跳转某一页
function goto_page(obj1,obj2,obj3,obj5,obj6,page_num,pageNum,tabNum){
    var showNum = parseInt($(obj3).val());//获取一页显示tr数量
    start_from = page_num * showNum + tabNum;//计算开始位置
    end_on = start_from + showNum;//计算结束位置
    $(obj1).children().children().hide().slice(start_from, end_on).show();
    //表头(标题)默认显示
    for(var i=0;i<tabNum;i++){
        $(obj1).children().children().eq(i).show();
    }
    //切换活动页码
    $(obj5 + '[cur_pageNum=' + page_num +']').addClass(obj6).siblings('.'+obj6).removeClass(obj6);
    //存储当前页码
    $(obj2).val(page_num);
    //当跳转页面到第一页 => '上一页' 失效,当跳转页面到最后一页 => '下一页' 失效
    if( page_num == 0){
        op1('.next_link');//下一页恢复
        op2('.prev_link');//上一页禁用
    }else if(page_num == pageNum - 1){
        op1('.prev_link');//上一页恢复
        op2('.next_link');//下一页禁用
    }else{//如果跳转页面不是第一页或者最后一页那么 '上一页' 和 '下一页' 恢复使用
        op1('.prev_link');//上一页恢复
        op1('.next_link');//下一页恢复
    }
}
//分页页面的实现
function page(obj1,obj2,obj3,obj4,obj5,obj6,showNum,tabNum){
    //获取table表格中tr
    var tr = $(obj1).children().children();
    //获取除了表头(标题)以外tr的总数量
    var allNum = tr.size()- tabNum;
    //计算页码数
    var pageNum = Math.ceil(allNum/showNum);
    //隐藏域默认值
    $(obj2).val(0);//初始化为0
    $(obj3).val(showNum);//存储一页中显示tr的数量
    //上一页
    var pageNav = '<a class="prev_link disable" disabled="true" datahref="javascript:prev(&#39;'+ obj1 +'&#39;,&#39;'+ obj2 +'&#39;,&#39;'+ obj3 +'&#39;,&#39;'+ obj5 +'&#39;,&#39;'+ obj6 +'&#39;,'+ pageNum + ','+ tabNum +');">上一页</a>';
    var curPage = 0;
    //提取显示页A标签定义的类名--除去输入时.
    var page_link = obj5.split('.')[1];
    //循环页码
    while(pageNum > curPage){
        pageNav += '<a class="'+ page_link +'" href="javascript:goto_page(&#39;'+ obj1 +'&#39;,&#39;'+ obj2 +'&#39;,&#39;'+ obj3 +'&#39;,&#39;'+ obj5 +'&#39;,&#39;'+ obj6 +'&#39;,' + curPage + ','+ pageNum + ',' + tabNum +')" cur_pageNum="' + curPage +'">'+ (curPage + 1) +'</a>';
        curPage++;
    }
    //判断页码是否不为一页,如果不为一页那么下一页的按钮为可用,否则下一页按钮为不可用。
    if(pageNum > 1){
        pageNav += '<a class="next_link" href="javascript:next(&#39;'+ obj1 +'&#39;,&#39;'+ obj2 +'&#39;,&#39;'+ obj3 +'&#39;,&#39;'+ obj5 +'&#39;,&#39;'+ obj6 +'&#39;,'+ pageNum + ',' + tabNum +');">下一页</a>';
    }else{
        pageNav += '<a class="next_link disable" disabled="true" datahref="javascript:next(&#39;'+ obj1 +'&#39;,&#39;'+ obj2 +'&#39;,&#39;'+ obj3 +'&#39;,&#39;'+ obj5 +'&#39;,&#39;'+ obj6 +'&#39;,'+ pageNum + ',' + tabNum +');">下一页</a>';
    }
    $(obj4).html(pageNav);
    //为第一页添加活动类
    $(obj5+':first').addClass(obj6);
    //隐藏该对象下面的所有子元素并让表头显示
    tr.slice(0, showNum + tabNum).show();
}
/*恢复可点击*/
function op1(obj){
    $(obj).removeClass('disable');//除去不可用类
    $(obj).removeAttr('disabled');//除去不可用属性
    $(obj).attr('href',$(obj).attr("datahref"));//将页码链接恢复
    $(obj).removeAttr('datahref');//除去备份链接
}
/*使点击效果失效*/
function op2(obj){
    $(obj).addClass('disable');//添加不可用类
    $(obj).attr('disabled', 'true');//添加不可用属性
    $(obj).attr('datahref',$(obj).attr("href"));//将页码链接备份到备份链接
     $(obj).removeAttr('href');//除去页码链接
}

JS代码于2017-04-17 16:53:09 有更新,原先的基础上添加了跳转页'上一页'和'下一页'的效果处理。

好了,到了这里如果你完成了创建并且运行可以看到效果如下图所示(如果你想自己研究源码,那么下面就可以先不看了--代码逻辑分析)。

 

下面开始解释代码的运行逻辑。

先看到HTML中下面代码(利用隐藏域存储值)

 

 <input type='hidden' id='current' />        /*存储当前页码的值*/

<input type='hidden' id='show' />          /*存储页面显示的行数*/

 

接下来可以看到

 

<script type="text/javascript">
$(function(){
  //page(table的ID,隐藏域ID1(存储当前页的页数),隐藏域ID2(存储一页显示的数量),分页组件ID,A标签默认类(类名自定义),选择时的类(设置活动时的样式类),一页显示的  个数,table的含有th的tr数量)
  page('#y1','#current','#show','#page_nav_y1','.y1_page','active_page',10,1);
});
</script>

 

上面参数我都做了相关的注释,如果没能看懂,欢迎提问。

 

如需转载,请表明来源http://www.cnblogs.com/webBlog-gqs/p/6715109.html --博客园小铁达子,谢谢合作!

posted @ 2017-04-17 16:56  Tsingtree  阅读(1841)  评论(0编辑  收藏  举报