jquery data tabel server side pagination with spring mvc

Question

The below code is used to generate table and populate data in server side pagination. But i'm getting null pointer exception. Data table not sending data to spring controller. table declarations

  var publicArticleTbl = $('#tblArticles').dataTable({
                                    "aoColumns" : [null],
                                    "bProcessing" : true,
                                    "bServerSide" : true,
                                    "bLenthChange" : false,
                                    "iDisplayLength" : 10,
                                    "iDisplayStart":  1,
                                    "bFilter": false,
                                    "bInfo": false,
                        });

spring controller

 @RequestMapping(value = "/getAllArticles", method = RequestMethod.GET)
    @ResponseBody
    public String getAllArticles(HttpServletRequest request) {
        int currPos = Integer.parseInt(request.getParameter("iDisplayStart"));
        int pageSize = Integer.parseInt(request.getParameter("iDisplayLength"));
        List<Article> articles = articleService.getAllArtilcles(currPos, pageSize);
        int totalRecords = articleService.getAllArticleCount();

        ArticleDataTableObject dataTableObject = new ArticleDataTableObject();

        dataTableObject.setiTotalDisplayRecords(totalRecords);
        // the total data in db for datatables to calculate page no.
        dataTableObject.setiTotalRecords(totalRecords);
        dataTableObject.setsEcho(Integer.parseInt(request.getParameter("sEcho")));
        dataTableObject.setAaData(articles);
        Gson gson = new Gson();
        String json = gson.toJson(dataTableObject);
        return json;
    }

int currPos = Integer.parseInt(request.getParameter("iDisplayStart")); int pageSize = Integer.parseInt(request.getParameter("iDisplayLength"));

The above line getting null pointer exception. Why js table not sending iDisplayStart and iDisplayLength

Where are you passing iDisplayStart ? You need to post the code — Vasu, Nov 11 '16 at 07:45
Possible duplicate of [What is a NullPointerException, and how do I fix it?](http://stackoverflow.com/questions/218384/what-is-a-nullpointerexception-and-how-do-i-fix-it) — Pieter van den Ham, Nov 11 '16 at 07:58
@Pete i know i'm getting null pointer exception , my question is why the field is null even if i passed from client side. — boycod3, Nov 11 '16 at 07:59

jquery data tabel server side pagination with spring mvc

0 Answers0