table表头和首列的表格固定-JQuery、js实现的Table表头固定

这个是最简单的方法,基于jQuery的解决方案,引入一个两个js就可以解决,当然也有使用css,
position: sticky,这个我下一章节会讲它的优缺点,当然为了凸显jQuery的优点,
table表头和首列的表格固定-JQuery、js实现的Table表头固定_第1张图片

我就说话使用css的缺点

1.固定表头,和首列需要额外的html,结构复杂。

2.体验效果,响应式布局很难解决,几乎没有解决
,table固定了长宽,在其他页面会看到很别扭,影响美观。

3.遇到bug,如果你是后端开发就需要找前端一点一点调样式,后端噩梦,影响开发效率

现在开始介绍JQuery的思路:
步骤1:克隆元素
在我们开始之前,我们将要关闭表头,并声明一些变量

//声明屏幕、当前table
    var $ t = $(this),
        $ w = $(window),
        $ thead = $(this).find('thead').clone(),
        $ col = $(this).find('thead,tbody').clone();

步骤2:创建新表
步骤3:插入克隆后的表格内容
步骤4:通过scrollTop算滚动高度来显示新表
算了还是长话短说,不说原理了,具体js代码等下回帖出来,不懂的可以直接问我,直接看看怎么使用吧。

第一步引入js

jquery.stickyheader.js
//可以去这里下载自己重新创建一个

第二步html中table结构

css

.sticky-wrap {
    overflow-x: auto;
    position: relative;
    margin-bottom: 1.5em;
    width: 100%;
}
.sticky-wrap .sticky-thead,
.sticky-wrap .sticky-col,
.sticky-wrap .sticky-intersect {
    opacity: 0;
    position: absolute;
    top: 0;
    left: 0;
    transition: all .125s ease-in-out;
    z-index: 50;
    width: auto; /* Prevent table from stretching to full size */
}
    .sticky-wrap .sticky-thead {
        box-shadow: 0 0.25em 0.1em -0.1em rgba(0,0,0,.125);
        z-index: 100;
        width: 100%; /* Force stretch */
    }
    .sticky-wrap .sticky-intersect {
        opacity: 1;
        z-index: 150;
    }
    .sticky-wrap .sticky-intersect th {
        background-color: #666;
        color: #eee;
    }
.sticky-wrap td,
.sticky-wrap th {
    box-sizing: border-box;
}

第三步打开浏览器看效果吧

table表头和首列的表格固定-JQuery、js实现的Table表头固定_第2张图片

原文

  1. 在线演示1
  2. 在线演示2
  3. 在线演示3

jquery-throttle-debounce-plugin.js

(function(b,c){var $=b.jQuery||b.Cowboy||(b.Cowboy={}),a;$.throttle=a=function(e,f,j,i){var h,d=0;if(typeof f!=="boolean"){i=j;j=f;f=c}function g(){var o=this,m=+new Date()-d,n=arguments;function l(){d=+new Date();j.apply(o,n)}function k(){h=c}if(i&&!h){l()}h&&clearTimeout(h);if(i===c&&m>e){l()}else{if(f!==true){h=setTimeout(i?k:l,i===c?e-m:e)}}}if($.guid){g.guid=j.guid=j.guid||$.guid++}return g};$.debounce=function(d,e,f){return f===c?a(d,e,false):a(d,f,e!==false)}})(this);

jquery.stickyheader.js

 $('table').each(function() {
            if($(this).find('thead').length > 0 && $(this).find('th').length > 0) {
                // 克隆
                var $w	   = $(window),
                        $t	   = $(this),
                        $thead = $t.find('thead').clone(),
                        $col   = $t.find('thead, tbody').clone();

                // Add class, remove margins, reset width and wrap table
                $t
                        .addClass('sticky-enabled')
                        .css({
                            margin: 0,
                            width: '100%'
                        }).wrap('
'); if($t.hasClass('overflow-y')) $t.removeClass('overflow-y').parent().addClass('overflow-y'); // Create new sticky table head (basic) $t.after(''); // If contains
, then we create sticky column and intersect (advanced) if($t.find('tbody th').length > 0) { $t.after('
'); } // Create shorthand for things var $stickyHead = $(this).siblings('.sticky-thead'), $stickyCol = $(this).siblings('.sticky-col'), $stickyInsct = $(this).siblings('.sticky-intersect'), $stickyWrap = $(this).parent('.sticky-wrap'); $stickyHead.append($thead); $stickyCol .append($col) .find('thead th:gt(0)').remove() .end() .find('tbody td').remove(); $stickyInsct.html(''); // 设置宽度 var setWidths = function () { $t .find('thead th').each(function (i) { $stickyHead.find('th').eq(i).width($(this).width()); }) .end() .find('tr').each(function (i) { $stickyCol.find('tr').eq(i).height($(this).height()); }); // Set width of sticky table head $stickyHead.width($t.width()); // Set width of sticky table col $stickyCol.find('th').add($stickyInsct.find('th')).width($t.find('thead th').width()) }, repositionStickyHead = function () { // Return value of calculated allowance var allowance = calcAllowance(); // Check if wrapper parent is overflowing along the y-axis if($t.height() > $stickyWrap.height()) { // If it is overflowing (advanced layout) // Position sticky header based on wrapper scrollTop() if($stickyWrap.scrollTop() > 0) { // When top of wrapping parent is out of view $stickyHead.add($stickyInsct).css({ opacity: 1, top: $stickyWrap.scrollTop() }); } else { // When top of wrapping parent is in view $stickyHead.add($stickyInsct).css({ opacity: 0, top: 0 }); } } else { // If it is not overflowing (basic layout) // Position sticky header based on viewport scrollTop if($w.scrollTop() > $t.offset().top && $w.scrollTop() < $t.offset().top + $t.outerHeight() - allowance) { // When top of viewport is in the table itself $stickyHead.add($stickyInsct).css({ opacity: 1, top: $w.scrollTop() - $t.offset().top }); } else { // When top of viewport is above or below table $stickyHead.add($stickyInsct).css({ opacity: 0, top: 0 }); } } }, repositionStickyCol = function () { if($stickyWrap.scrollLeft() > 0) { // When left of wrapping parent is out of view $stickyCol.add($stickyInsct).css({ opacity: 1, left: $stickyWrap.scrollLeft() }); } else { // When left of wrapping parent is in view $stickyCol .css({ opacity: 0 }) .add($stickyInsct).css({ left: 0 }); } }, calcAllowance = function () { var a = 0; // Calculate allowance $t.find('tbody tr:lt(3)').each(function () { a += $(this).height(); }); // Set fail safe limit (last three row might be too tall) // Set arbitrary limit at 0.25 of viewport height, or you can use an arbitrary pixel value if(a > $w.height()*0.25) { a = $w.height()*0.25; } // Add the height of sticky header a += $stickyHead.height(); return a; }; setWidths(); $t.parent('.sticky-wrap').scroll($.throttle(250, function() { repositionStickyHead(); repositionStickyCol(); })); $w .load(setWidths) .resize($.debounce(250, function () { setWidths(); repositionStickyHead(); repositionStickyCol(); })) .scroll($.throttle(250, repositionStickyHead)); } });

2018.7.13 又发现一个好插件,如果你用过datatable可以使用fixedheader来固定头部,使用fixedcolumns固定列
https://datatables.net/extensions/fixedheader/
2018.11.27 又发现一个插件
https://github.com/harryluo163/toutiao/tree/master/CSS实现的Table表头固定
http://47.105.36.188:3030/toutiao/CSS实现的Table表头固定/index.html
如果你遇到问题,可以加群315552185
一起交流哦!

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'+$t.find('thead th:first-child').html()+'