ajax请求同步方法,easyui datagrid 在线例子 ,

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
	<title>jQuery EasyUI</title>
	<link rel="stylesheet" type="text/css" href="http://www.w3cschool.cc/try/jeasyui/themes/default/easyui.css">
	<link rel="stylesheet" type="text/css" href="http://www.w3cschool.cc/try/jeasyui/themes/icon.css">
	<script type="text/javascript" src="http://code.jquery.com/jquery-1.4.4.min.js"></script>
	<script type="text/javascript" src="http://www.w3cschool.cc/try/jeasyui/jquery.easyui.min.js"></script>
</head>
<body>
	<h1>Convert a HTML table to DataGrid</h1>
	<table id="tt" class="easyui-datagrid" style="width:350px;height:auto;">
		<thead>
			<tr>
				<th field="name1" width="50">Col 1</th>
				<th field="name2" width="50">Col 2</th>
				<th field="name3" width="50">Col 3</th>
				<th field="name4" width="50">Col 4</th>
				<th field="name5" width="50">Col 5</th>
				<th field="name6" width="50">Col 6</th>
			</tr>                          
		</thead>                           
		<tbody>                            
			<tr>                           
				<td>Data 1</td>            
				<td>Data 2</td>            
				<td>Data 3</td>            
				<td>Data 4</td>            
				<td>Data 5</td>            
				<td>Data 6</td>            
			</tr>                          
			<tr>                           
				<td>Data 1</td>            
				<td>Data 2</td>            
				<td>Data 3</td>            
				<td>Data 4</td>            
				<td>Data 5</td>            
				<td>Data 6</td>            
			</tr>                          
			<tr>                           
				<td>Data 1</td>            
				<td>Data 2</td>            
				<td>Data 3</td>            
				<td>Data 4</td>            
				<td>Data 5</td>            
				<td>Data 6</td>            
			</tr>                          
			<tr>                           
				<td>Data 1</td>            
				<td>Data 2</td>            
				<td>Data 3</td>            
				<td>Data 4</td>            
				<td>Data 5</td>            
				<td>Data 6</td>            
			</tr>                          
		</tbody>                           
	</table>
		
</body>
</html>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<title>Client Side Pagination in DataGrid - jQuery EasyUI Demo</title>
	<link rel="stylesheet" type="text/css" href="http://www.jeasyui.net/Public/js/easyui/themes/default/easyui.css">
	<link rel="stylesheet" type="text/css" href="http://www.jeasyui.net/Public/js/easyui/themes/icon.css">
	<!--<link rel="stylesheet" type="text/css" href="../demo.css">-->
	<script type="text/javascript" src="http://code.jquery.com/jquery-1.4.4.min.js"></script>
	<script type="text/javascript" src="http://www.jeasyui.net/Public/js/easyui/jquery.easyui.min.js"></script>
	
</head>
<body>
    <h2>Client Side Pagination in DataGrid</h2>
    <p>This sample shows how to implement client side pagination in DataGrid.</p>
    <div style="margin:20px 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(){
			var rows = [];
			for(var i=1; i<=800; 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
				});
			}
			return rows;
		}

		function pagerFilter(data){
			if (typeof data.length == 'number' && typeof data.splice == 'function'){	// is array
				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(){
			$('#dg').datagrid({loadFilter:pagerFilter}).datagrid('loadData', getData());
		});
    </script>
</body>
</html>
//ajax请求同步方法


function getAllData() {
    let retData = '';
    $.ajaxSettings.async = false;
    $.post(url, function (allptsstr) {
        if (allptsstr) {
            retData = JSON.stringify(allptsstr);
        }
    })
    $.ajaxSettings.async = true;
    return retData;
}

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转载自blog.csdn.net/qq503690160/article/details/111504480
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