Question

我有一个jquery数据表，其数据来自数据库，从java servlet获取。很少列有空值。因此我收到警告

DataTables警告：table id = lplist - 请求的未知参数＆＃39; FeeCompany＆＃39;第9行。有关此错误的详细信息，请参阅http://datatables.net/tn/4

我希望将这些空值替换为空字符串。有人请指导如何实现此目的。

我的代码段如下

    <script
    src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script
    src="http://cdn.datatables.net/1.10.4/js/jquery.dataTables.min.js"></script>

<script
    src="http://cdn.datatables.net/scroller/1.2.2/js/dataTables.scroller.min.js"></script>
<link
    href="http://cdn.datatables.net/scroller/1.2.2/css/dataTables.scroller.css"
    rel="stylesheet" type="text/css" />

<link href="http://cdn.datatables.net/1.10.4/css/jquery.dataTables.css"
    rel="stylesheet" type="text/css" />
<title>Insert title here</title>
<script type="text/javascript">
            $(document).ready(function () {
                $("#lplist").dataTable({
                    "serverSide": true,
                    "sAjaxSource": "/JQueryDataTablesAll/CompanyGsonObjects",

                    dom: "rtiS",
                    scrollY: 450,
                    scrollX:true,
                    "processing": true,                     
                    "aoColumns": [
                                  { "mData": "InsuredName" },
                                  { "mData": "CustAddress_City" },
                                  { "mData": "CustAddress_State" },
                                  { "mData": "CustAddress_Zip" },
                                  { "mData": "CustSurvey_Location" },
                                  { "mData": "PolicyNo" },
                                  { "mData": "ProfitCenter" },
                                  { "mData": "FeeCompany" }, 

                              ]



                });
            });
        </script>
</head>
<body id="dt_example">
    <div id="container">
        <div id="links">
            Server-side processing with object source <br />
        </div>
        <div id="demo_jui">
            <table id="lplist" class="display">
                <thead>
                    <tr>
                        <th>Insured Name</th>
                        <th>City</th>
                        <th>State</th>
                        <th>Zip</th>
                        <th>Survey Location</th>
                        <th>PolicyNo</th>
                        <th>Profit Center</th>
                        <th>Fee Company</th>                        

                    </tr>
                </thead>
                <tbody>
                </tbody>
            </table>
        </div>

    </div>

Answer 1

初始化数据表时在选项中添加defaultContent。有关详细信息

columns.defaultContent

Answer 2

您可以使用mRender指定空值时的显示：

{ 
    "mData": "FeeCompany" 
    'mRender': function (data, type, full) {
        if (full[7] !== null) {
             return full[7]; 
         }else{
             return '';
         }
},

Answer 3

{

  "data": function(data, type, dataToSet) {

    return data.CourseEducator1 ? ? " " + "<br/>" + data.CourseEducator2 ? ? ";

  }

}

如何在jquery数据表中处理数据库空值

3 个答案: