var header= [];
var header1= [{field: 'merchantName', title: '商户名称', width: 140, rowspan: 2},{field: 'merchantSubName', title: '子商户名称', width: 140, rowspan: 2}];
var header2= [];
$.ajax({
  type: "get",
  url: "",
  data: {id: 1,type:type},
  success: function (data) {
   if (data.code === 0){
    $.each(data.data[0], function (index, obj) {
     header1.push({align: 'center', title: obj, colspan:3});
    });
    $.each(data.data[1], function (index, obj) {
     //拼接成官网所需要的数组
     header2.push({field: obj.field1, title: obj.title1 });
     header2.push({field: obj.field2, title: obj.title2 });
     header2.push({field: obj.field3, title: obj.title3 });
    });
    header.push(header1);
    header.push(header2);
    table.reload('setList', {
     url: '' //数据接口
     , cols: header
    });
    header= [];
    header1= [{field: 'merchantName', title: '商户名称', width: 140, rowspan: 2},{field: 'merchantSubName', title: '子商户名称', width: 140, rowspan: 2}];
    header2= [];
   }
  }
 });
 table.render({
  id: 'setList',
  elem: '#setList'
  , url: '' //数据接口
  , cellMinWidth: 80
  , limit: 10//每页默认数
  , limits: [10, 20, 30, 40, 50, 100]
  , page: { //支持传入 laypage 组件的所有参数（某些参数除外，如：jump/elem） - 详见文档
   layout: ['count', 'prev', 'page', 'next', 'limit', 'refresh', 'skip'] //自定义分页布局
   , curr: 1 //设定初始在第 1 页
  }
  ,where: {
   id:id,
   type:type
  }
  , cols: header
 });

public AjaxResult header(@RequestParam Map<String, Object> map) {
  Long id = Long.valueOf((String )map.get("id"));
  String productName = map.get("productName")==null"":(String)map.get("productName");
  String type = map.get("type")==null"":(String)map.get("type");

  if("".equals(productName) ){
   if(("0").equals(type)){
    List<ProductInfo> list =statisticsFeign.getProduct();
    productName = list.get(0).getProductName();
   }else{
    Long[] ids =settlementFeign.getMerch(id);
    String mid= org.apache.commons.lang.StringUtils.join(ids, ",");
    List<MerchantProductRate> list =statisticsFeign.getProductByMID(mid);
    productName = list.get(0).getProductName();
   }
  }

  String[] str = productName.split(",");
  List list = new ArrayList();
  List list1 = new ArrayList();
  List list2 = new ArrayList();
  for (int i = 0; i < str.length; i++) {
   list1.add(str[i]);
   list2.add(new Messge("sumTotal"+(i+1),"成功笔数","sumCost"+(i+1),"扣减金额","sumBars"+(i+1),"扣减条数"));
  }
  list.add(list1);
  list.add(list2);
  return new AjaxResult(0,"获取数据成功",list);
 }

public class Messge {
 /** 列名1 **/
 private String field1;
 /** 对应说明1(成功笔数) **/
 private String title1;
 /** 列名2 **/
 private String field2;
 /** 对应说明2(扣减金额) **/
 private String title2;
 /** 列名3 **/
 private String field3;
 /** 对应说明3(扣减条数)**/
 private String title3;