datatables服務器端分頁

參考網址：

http://www.cnblogs.com/firesnow/archive/2013/04/07/3006508.html

http://xqqing79.iteye.com/blog/1219426

HTML代碼：

  <script type="text/javascript">
      $(document).ready(function() {
        getDataTables();
    });
    
    function getDataTables(){
        var title=$("input[name='gjzSelect']").val();
        var selectType=$("#selectType").val();
        var startTime=$("#c10").val();
        var endTime=$("#c11").val();
        
        var t = $('#example').dataTable({
            "processing" : true,
            "serverSide" : true,
            "language"      : {
                "url": '<%=basePath%>/resources/zh_CN.json',
            },
            "sAjaxSource" : "<%=basePath%>jiankong/selectSensitiveWordMonitor.do",
             "fnServerData": retrieveData,
             
            "searching": true,
            "columns" : [
                /* {"data": "id"}, */
                {"data": "sensitivewordUrl"},
                /* {"data": "sensitivewordLevel"},
                {"data": "sensitivewordName"},
                {"data": "sensitivewordHandleInfo"}, */
                {"data": "sensitivewordContent"},
                {"data": "taskId"},
            ],
        });
        
        function retrieveData(sSource, aoData, fnCallback) {
            $.ajax({
                //這個就是請求地址對應sAjaxSource
                url : sSource,                                
                //這個是把datatable的一些基本數據傳給後臺,好比起始位置,每頁顯示的行數
                data : {"startTime":startTime, "aoData":JSON.stringify(aoData)},    
                type : 'POST',
                dataType : 'json',
                async : false,
                success : function(result) {
                    //把返回的數據傳給這個方法就能夠了,datatable會自動綁定數據的
                    fnCallback(result);                        
                },
                error : function(msg) {
                    alert("服務器發生錯誤請稍後再試!");
                }
            });
        } 
    }
</script>

服務器端代碼

    public void selectSensitiveWordMonitor(){
        User user = (User) request.getSession().getAttribute("loginUser");
        Map map = new HashMap();
        Map mapList = new HashMap();
        Map<String, String> mapData = new HashMap<String, String>();
        StringBuffer taskIds = new StringBuffer();
        List list = new ArrayList();
        map.put("userName", user.getUsername());
        //獲得站點數據
        List<UserWebSite> websiteList = service.selectWebsite(map);
        if(websiteList.size() > 0){
            for (UserWebSite userWebSite : websiteList) {
                Map mapBack = new HashMap();
                mapList.put("websiteid", userWebSite.getId());
                //獲得敏感詞數據
                List<SensitiveWord> sensitiveWordList = service.selectSensitiveWord(mapList);
                if( sensitiveWordList.size() > 0 ){
                    taskIds.append("'").append(sensitiveWordList.get(0).getTaskId()).append("',");
                }
            }
        }
        if(taskIds.length() > 0){
            mapData.put("taskIds", taskIds.toString().substring(0, taskIds.length()-1));
        }else{
            mapData.put("taskIds", "NULL");
        }
        
        String aoData = request.getParameter("aoData");
        JSONArray jsonarray = JSONArray.fromObject(aoData);
        String sEcho = null; // 記錄操做的次數 每次加1
        String iDisplayStart ="0"; // 起始索引
        String iDisplayLength = "0"; // 每頁顯示的行數
        int orderColumn = 0;
        String orderDir = "asc";
        String search = "";
        for (int i = 0; i < jsonarray.size(); i++) {
            JSONObject obj = (JSONObject) jsonarray.get(i);
            if (obj.get("name").equals("sEcho"))
                sEcho = obj.get("value").toString();
            if (obj.get("name").equals("iDisplayStart"))
                iDisplayStart = obj.getString("value");
            if (obj.get("name").equals("iDisplayLength"))
                iDisplayLength = obj.getString("value");
            if (obj.get("name").equals("sSortDir_0"))
                orderDir = obj.getString("value");
            if (obj.get("name").equals("iSortCol_0"))
                orderColumn = obj.getInt("value");
            if (obj.get("name").equals("sSearch"))
                search = obj.getString("value");
        }
        
        String orderSql = "";
        //String[] cols = {"id", "sensitivewordUrl", "sensitivewordLevel","sensitivewordName","sensitivewordHandleInfo","sensitivewordContent","taskId"};
        if(orderColumn != -1){
            switch(orderColumn){
/*                case 0:
                    orderSql = " order by id ".concat(orderDir); break;*/
                case 0:
                    orderSql = " order by sensitivewordUrl ".concat(orderDir); break;
                case 1:
                    orderSql = " order by sensitivewordLevel ".concat(orderDir); break;
/*                case 3:
                    orderSql = " order by sensitivewordName ".concat(orderDir); break;
                case 4:
                    orderSql = " order by sensitivewordHandleInfo ".concat(orderDir); break;
                case 5:
                    orderSql = " order by sensitivewordContent ".concat(orderDir); break;
                */
                case 2:
                    orderSql = " order by taskId ".concat(orderDir); break;
            }
        }
        
        
        Integer recordsTotal = 0;            //表的總記錄數
        Integer recordsFiltered = 0;        //條件過濾後記錄數
        
        recordsTotal = service.getUserSensitiveWordInfoSum(mapData);
        
        //List<SensitiveWordInfo> sensitiveWordInfoList = service.selectSensitiveWordInfoFiltered(map);
        List<String> sArray = new ArrayList<String>();
        if(!search.equals("")){
            /*sArray.add(" id LIKE '%" + search + "%'");*/
            sArray.add(" sensitivewordUrl LIKE '%" + search + "%'");
            /*
            sArray.add(" sensitivewordLevel LIKE '%" + search + "%'");
            sArray.add(" sensitivewordName LIKE '%" + search + "%'");
            sArray.add(" sensitivewordHandleInfo LIKE '%" + search + "%'");
            */
            sArray.add(" sensitivewordContent LIKE '%" + search + "%'");
            sArray.add(" taskId LIKE '%" + search + "%'");
        }
        String sumSQLWhere = "";
        if(sArray.size() == 1){
            sumSQLWhere = sArray.get(0);
        }else if (sArray.size() > 1){
            for(int i=0; i<sArray.size()-1; i++){
                sumSQLWhere += sArray.get(i) + " OR ";
            }
            sumSQLWhere += sArray.get(sArray.size()-1);
        }
        
        List<SensitiveWordInfo> lists = new ArrayList<SensitiveWordInfo>();
        mapData.put("start", iDisplayStart);
        mapData.put("length", iDisplayLength);
        mapData.put("orderSql", orderSql);
        if(search.length() > 0){
            mapData.put("sumSQLWhere", sumSQLWhere);
            recordsFiltered = service.getUserSensitiveWordInfoSum(mapData);
            lists = service.selectSensitiveWordInfoFiltered(mapData);
        }else{
            recordsFiltered = recordsTotal;
            lists = service.selectSensitiveWordInfoFiltered(mapData);
        }
        
        lists = service.selectSensitiveWordInfoFiltered(mapData);
        
        JSONObject json = new JSONObject();
        json.put("sEcho", sEcho);
        json.put("aaData", lists);
        json.put("iTotalRecords", recordsTotal);
        json.put("iTotalDisplayRecords", recordsFiltered);
        outString(json.toString());
    }

    public void outString(String str) {
        try {
            request.setCharacterEncoding("utf-8");
            response.setContentType("text/html;charset=utf-8");
            Writer out = response.getWriter();
            out.write(str);
            out.flush();
            out.close();
        } catch (IOException e) {
            log.error(e.getMessage(), e);
        }
    }

dataTables頁面進行分頁，其HMTL代碼以下：

                $.ajax({
                    url:'<%=basePath%>jiankong/selectSensitiveWord.do',
                    cache:false,
                    data:{
                            'startTime':startTime,
                            'endTime':endTime,
                            'title' :title
                          },
                    dataType:'json',
                    error:function (e){
                    },
                    success:function (data){
                        var json=data;
                        html+='<table id="selectSensitiveWord_table" class="display" cellspacing="0" width="100%"><thead><tr><th width=120px>異常發生時間</th><th>監控對象</th><th></th><th>敏感字</th></tr></thead>';
                        html+='<tbody>';
                        for(var i = 0; i < json.length; i++){
                            if(json[i].sensitiveWordInfoList != '0'){
                                 for(var j=0;j<json[i].sensitiveWordInfoList.length;j++){
                                     html+='<tr>';
                                     html+='<td>'+ getDateTime(json[i].securityBugTime) +'</td>';
                                     html+='<td>'+ json[i].websiteAddress +'</td>';
                                     html+='<td>'+ json[i].sensitiveWordInfoList[j].sensitivewordLevel +'</td>';
                                     html+='<td>'+ json[i].sensitiveWordInfoList[j].sensitivewordContent +'</td>';
                                     html+='</tr>';
                                 }
                             }
                         
                        }
                        html+='</tbody>';
                        html+='</table>';
                         $("#selectSensitiveWord").html(html);
                         var table = $('#selectSensitiveWord_table').dataTable({
                             "bLengthChange": false,
                            "iDisplayLength": 10,
                             "language"      : {
                                "url": '<%=basePath%>resources/zh_CN.json',
                            },
                            "searching" : false,
                        });
                    }   
                });