easyui datagrid 前台分页的实现java采用的版本
使用easyui分页，有后台服务器端实现和前台浏览器端实现。服务器端实现按规定的格式返回数据就可以了，前台实现需要写js来实现。
代码如下：
关键代码：
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function pagerFilter(data){
if (typeof data.length == 'number' && typeof data.splice == 'function'){ // 判断数据是否是数组
data = {
total: data.length,
rows: data
}
}
var dg = $(this);
var opts = dg.datagrid('options');
var pager = dg.datagrid('getPager');
pager.pagination({
onSelectPage:function(pageNum, pageSize){
opts.pageNumber = pageNum;
opts.pageSize = pageSize;
pager.pagination('refresh',{
pageNumber:pageNum,
pageSize:pageSize
});
dg.datagrid('loadData',data);
}
});
if (!data.originalRows){
data.originalRows = (data.rows);
}
var start = (opts.pageNumber-1)*parseInt(opts.pageSize);
var end = start + parseInt(opts.pageSize);
data.rows = (data.originalRows.slice(start, end));
return data;
}
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完整的Demo
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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>客户端分页demo</title>
<link rel="stylesheet" type="text/css" href="http://www.jeasyui.com/easyui/themes/bootstrap/easyui.css">
<link rel="stylesheet" type="text/css" href="http://www.jeasyui.com/easyui/themes/icon.css">
<link rel="stylesheet" type="text/css" href="http://www.jeasyui.com/easyui/demo/demo.css">
<script type="text/javascript" src="http://www.jeasyui.com/easyui/jquery-1.8.0.min.js"></script>
<script type="text/javascript" src="http://www.jeasyui.com/easyui/jquery.easyui.min.js"></script>
</head>
<body>
<h2>客户端分页dem</h2>
<div class="demo-info">
<div class="demo-tip icon-tip"></div>
<div></div>
</div>
<div style="margin:10px 0;"></div>
<table id="dg" title="Client Side Pagination" style="width:700px;height:300px" data-options="
rownumbers:true,
singleSelect:true,
autoRowHeight:false,
pagination:true,
pageSize:10">
<thead>
<tr>
<th field="inv" width="80">Inv No</th>
<th field="date" width="100">Date</th>
<th field="name" width="80">Name</th>
<th field="amount" width="80" align="right">Amount</th>
<th field="price" width="80" align="right">Price</th>
<th field="cost" width="100" align="right">Cost</th>
<th field="note" width="110">Note</th>
</tr>
</thead>
</table>
<script>
function getData(){//模拟数据
var rows = [];
for(var i=1; i<=80000; i++){
var amount = Math.floor(Math.random()*1000);
var price = Math.floor(Math.random()*1000);
rows.push({
inv: 'Inv No '+i,
date: $.fn.datebox.defaults.formatter(new Date()),
name: 'Name '+i,
amount: amount,
price: price,
cost: amount*price,
note: 'Note '+i
});
}
//console.log(JSON.stringify(rows));
return rows;
}
function pagerFilter(data){
if (typeof data.length == 'number' && typeof data.splice == 'function'){ // 判断数据是否是数组
data = {
total: data.length,
rows: data
}
}
var dg = $(this);
var opts = dg.datagrid('options');
var pager = dg.datagrid('getPager');
pager.pagination({
onSelectPage:function(pageNum, pageSize){
opts.pageNumber = pageNum;
opts.pageSize = pageSize;
pager.pagination('refresh',{
pageNumber:pageNum,
pageSize:pageSize
});
dg.datagrid('loadData',data);
}
});
if (!data.originalRows){
data.originalRows = (data.rows);
}
var start = (opts.pageNumber-1)*parseInt(opts.pageSize);
var end = start + parseInt(opts.pageSize);
data.rows = (data.originalRows.slice(start, end));
return data;
}
$(function(){//加载数据
$('#dg').datagrid({loadFilter:pagerFilter}).datagrid('loadData', getData());
});
</script>
</body>
</html>
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