easyui datagrid 加载两次请求,触发两次ajax 请求 问题

datagrid初始化的时候请求两次URL

两种情况

1.

<table id="gridview" class="easyui-datagrid"></table>
$(function(){
$("#gridview").datagrid({
url:"getData.do",
title:"列表",
singleSelect:false,
pagination:true,
toolbar:"#toolbar", method:"get",
columns:[[
{field:"ck",checkbox:true },
{field:"id",title:"ID",width:20,sortable:true },
{field:"kindName",title:"名称",width:100,resizable:true,sortable:true},
{field:"createDate",title:"创建日期",width:80,resizable:true,sortable:true}
]]
});
})

由于在grid的table中写了class="easyui-datagrid",另外在初始化的js中有了URL这样就会请求两次getData.do了,将class="easyui-datagrid"去掉即可。

第二种情况 :

    

初始化一个表格 
$(function(){
  $('.SFC7450_main_table1').datagrid({
url:'table.json',//加载本地json
rownumbers:true,//序号是否显示
pagination:true, //是否添加页签
pagePosition:'bottom', //页面的位置
method:'get',//获取类型
singleSelect:true,//是否单选
fitColumns:false,//单元格是否自适应填满表格宽度
columns:[SFC7450_table[0]]
}); }); 使用下面方式为表格赋值
$('.SFC7450_main_table1').datagrid({
url:'/sfc/a.do',//加载本地json
rownumbers:true,//序号是否显示
pagination:true, //是否添加页签
pagePosition:'bottom', //页面的位置
method:'get',//获取类型
singleSelect:true,//是否单选
fitColumns:false,//单元格是否自适应填满表格宽度
columns:[SFC7450_table[0]]
});
这时候会出现一个奇怪的现象: js调试观察network 会看到 请求了 sfc/a.do .. 请求完成后又请求了一次 table.json ... 解决:可以在初始化的时候不要请求url,而是使用data 赋一个空数组 (我们为什么要初始化一个空的表格,是为了页面在初始的时候展现好看)
//空白JOSN 5行
var KongJson5=[
{"":"","":"","":"","":"","":"",
"":"","":"","":"","":"","":""}, {"":"","":"","":"","":"","":"",
"":"","":"","":"","":"","":""}, {"":"","":"","":"","":"","":"",
"":"","":"","":"","":"","":""},
{"":"","":"","":"","":"","":"",
"":"","":"","":"","":"","":""}, {"":"","":"","":"","":"","":"",
"":"","":"","":"","":"","":""}
] 改成下面即可 $('.SFC7450_main_table1').datagrid({
		data:KongJson5,//加载本地json
rownumbers:true,//序号是否显示
pagination:true, //是否添加页签
pagePosition:'bottom', //页面的位置
method:'get',//获取类型
singleSelect:true,//是否单选
fitColumns:false,//单元格是否自适应填满表格宽度
columns:[SFC7450_table[0]]
});

  

<table id="gridview" class="easyui-datagrid"></table>

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