Example of processing method of datatables in js

/**
	 * 初始化表单
	 */
	me.initDatatable = function() {
		me.interns0301Table = $("#interns0301Table").DataTable({
			// 让表头与表格对齐
	        "autoWidth": true,
	        "processing": true,
	        "serverSide": true,
	        // 表格数据减少时，表格的高度也跟着减少
	        "scrollCollapse": true, 
	        "ajax" : {
	        	"url": $ctx + "/interns0301/queryList",
	        	"type": "post",
	        	"data" : function(params) {
					// 页面显示记录条数，在页面显示每页显示多少项的时候
					params.pageSize = params.length;
					// 当前页码
					params.pageNo = (params.start / params.length) + 1;
					// 序列化表单元素为JSON对象
					var dataJson = eims.serialize('interns0301Form');
					$.extend(params, dataJson);
					return params;
				},
				"dataType" : "json"
	        },
			 "columnDefs": [
			                	{                          
					              "defaultContent": "",
					               "targets": "_all"
				                 }
				          ],
	    	"sPaginationType": "full_numbers",
                  // 将后台得到的值放进对应字段中
	        "columns": [ 
	                 {
                   // 全选框，传入id等参数
	        	  "data": null,sClass: "text-center","render": function(data, type, row, meta){
	        	  return &#39;<input class="checkall"   type="checkbox"><input type="text" hidden value="&#39;+row.id+&#39;">&#39;;
	  		  }},
	  	         {"data": "groupNumber",sClass: "text-center" ,"render": function ( data, type, row, meta ) {
    				return &#39;<a href="#" onclick="javascript:interns.interns0301.showInterns0302Update(\&#39;&#39; + row.id+ &#39;\&#39;)">&#39; + data + &#39;</a>&#39;;}},		  		  
	  		  {"data": "groupName",sClass: "text-center"},
	                  {"data": "projectNumber",sClass: "text-center"},
	                  {"data": "projectSimname",sClass: "text-center"},
			  {"data": "unitNumber",sClass: "text-center"},
			  {"data": "unitSimname",sClass: "text-center"},
			  {"data": "entryDate",sClass: "text-center"},	          
	        ],
	        // 回调函数，全选框的处理
	        "drawCallback": function(settings){
  	        	$("#selectAll").prop("checked", false);
  	        	me.checkBox();
  	        }	        
		});
		// 加载页面
		me.interns0301Table.ajax.reload();
	};