填充数据表；无效的 JSON 响应

如何解决填充数据表；无效的 JSON 响应

我想在数据表中填充数据库的一些值。我无法确定我错在哪里。

我的json对象是正确的。我已经成功初始化了数据表。我看到了很多解决方案，但没有得到任何更好的解决方案。请帮忙这是我在服务器控制台中的代码和 json 响应

    $(document).ready(function() {       
         var table =  $('#example').dataTable({
            "processing" : true,"serverSide" : true,"ajax" : {

                "dataType" : "json","contentType" : "application/json; charset=utf-8","type" : "POST","url" : "${pageContext.request.contextpath}/getdata","data": function (data) {
                     console.log(data);
                        for(var i=0;i<data.length;i++)
                        {
                            
                        }

                    },},"columns" : [ {
                "data" : "first_name"
            },{
                "data" : "last_name"
            },{
                "data" : "position"
            },{
                "data" : "office"
            },{
                "data" : "start_date"
            },{
                "data" : "salary"
            } ]
        }); 
    });

    @RequestMapping(value = "/getdata",method = RequestMethod.POST)
    public String getdatatable(Model model) {
        List<Traninfo> list = trdao.getTraninfoTable();
        
        System.out.println("-----Current time of a different time zone using LocalTime-----" + list.size());
            JSONArray jsonArray = new JSONArray();

            for(int i=0; i<list.size();i++ ) {            
                JSONObject formDetailsJson = new JSONObject();
                formDetailsJson.put("last_name",list.get(i).getRemfname());
                formDetailsJson.put("position",list.get(i).getTranno());
                formDetailsJson.put("office",list.get(i).getBenecountry());
                formDetailsJson.put("salary",list.get(i).getRemamountdest());
                formDetailsJson.put("first_name",list.get(i).getBenename());
                formDetailsJson.put("start_date",list.get(i).getEntereddatetime());
                jsonArray.add(formDetailsJson);
            }
           // responseDetailsJson.put("data",jsonArray);//Here you can see the data in json format
            model.addAttribute("data",jsonArray);
            System.out.println("After req responseDetailsJson" +jsonArray.toString());
        //return new ModelAndView("datatable","data",jsonArray);
            return "datatable";
    }

[{
    "last_name": "MD SOBAHAN SHARIF","position": "705807","office": "BD","salary": 37217.25,"first_name": "CHAINA","start_date": "2013-11-02 06:31:00+00"
},{
    "last_name": "ASIM SUTradHOR","position": "941076","salary": 13000.0,"first_name": "PRASHADI SUTradOR","start_date": "2014-07-19 05:14:00+01"
},{
    "last_name": "MOKTER","position": "702040","salary": 56520.0,"first_name": "YASMIN.","start_date": "2013-10-26 12:12:00+01"
},{
    "last_name": "MD. HASSAN MOROL","position": "731692","salary": 85002.0,"first_name": "MD. Abed ALI MOROL","start_date": "2013-12-04 11:57:00+00"
},{
    "last_name": "DELOWAR","position": "674045","salary": 55020.6,"first_name": "MRS. LAKI AKTER","start_date": "2013-09-22 04:00:00+01"
},{
    "last_name": "FARUK FARUK","position": "764600","salary": 10089.75,"first_name": "MD JALAL AHMED CHOWDURY","start_date": "2014-01-09 12:35:00+00"
},{
    "last_name": "MASUD RANA","position": "674054","salary": 15214.5,"first_name": "MASUDA BEGUM.","start_date": "2013-09-22 04:09:00+01"
},{
    "last_name": "MD. JAHIDUL ISLAM","position": "723460","salary": 50111.25,"first_name": "ABDUL JABBAR ALI","start_date": "2013-11-23 11:12:00+00"
},{
    "last_name": "MD. ANIS MOLLAH","position": "802260","salary": 26058.5,"first_name": "SHAHINUR AKTER","start_date": "2014-02-16 10:49:00+00"
}]

数据表警告：

table id=example - 无效的 JSON 响应。有关此错误的详细信息，请参阅 http://datatables.net/tn/1