接口返回数据Json格式处理

有这样一个页面 ， 用来显示用户的账户记录数据，并且需要显示每个月的 收入 支出合计
，在分页的时候涉及到一些问题，需要对返回的Json格式做处理，处理起来比较麻烦，后端返回的Json数据格式形式如下：

{
  "code": "0",
  "result": {
    "monthAmount": [
      {
        "date": "2017-09",
        "income": 6000000,
        "expend": 1233800
      }
    ],
    "billList": [
      {
        "id": 2004,
        "amount": 1000000,
        "balance": 4776200,
        "type": "1",
        "sourceId": "7",
        "orderNumber": "20170914100000294222",
        "mchNumber": "v1500949333578",
        "mchName": "大王杂货店",
        "date": "2017-09-14 16:58:52"
      }
    ]
  }
}

分析以上Json数据格式，分为2个数组，一个是合计数组，一个是账户记录，我们需要将两个数组处理，将相同月份的数据展示在一起，组成新的我们需要的Json格式

 "arr": [
    {
      "date": "本月",
      "income": 6000000,
      "expend": 1233800,
      "items": [
        {
          "week": "今天",
          "weekdate": "16:58",
          "amount": 1000000,
          "balance": 4776200,
          "statusText": "团体购卡",
          "type": "1",
          "logo": "1"
        }
      ]
    }
  ]

数据上拉加载的时候如果当前月份数据未加载完，需要在最后一条记录上面追加数据，要保证分页后数据正确显示，首先我们通过遍历billList集合，得到每条记录的月份日期2017-09，与设置的date标识判断是否相等
如果是同一月份，在最后一条记录追加该条数据

let data ={week:obj.week,weekdate:obj.weekdate,amount:obj.amount,balance:obj.balance,statusText:type[obj.sourceId],type:obj.type,logo:logo[obj.sourceId],status:obj.status};  
 _obj.arr[_obj.arr.length-1].items.push(data); 

如果是其他月份，创建一个包括该月份统计数据的对象，并将该月份的收支合计显示出来

let data ={week:result.billList[i].week,weekdate:result.billList[i].weekdate,amount:result.billList[i].amount,balance:result.billList[i].balance,statusText:type[result.billList[i].sourceId],type:result.billList[i].type,logo:logo[result.billList[i].sourceId],status:result.billList[i].status};                        
 let obj ={date:_date,income:result.monthAmount[j].income,expend:result.monthAmount[j].expend,items:[data]};

以下是nodejs部分代码

let parameter = ctx.request.body;
console.log('/accountRecord : post :openid='+ctx.session.vpOpenId +' : 提交的参数：'+JSON.stringify(parameter));
let _obj = {count:0,arr:[]};
let date = "";
let count = 0;
let result =await accountsBillData(ctx,parameter.num,10,ctx.session.indexTime);
if(result != null && result.billList.length > 0 && !result.msg){
    for(let i =0; i<result.billList.length;i++){
        let type = {0:result.billList[i].mchName+' 奖金', 1:'发红包', 2:'红包退回', 3:'推荐码红包入账', 4:'充值', 5:'提现', 6:'提现失败', 7:result.billList[i].mchName+' 购买礼遇',8:result.billList[i].mchName+' 奖金',9:result.billList[i].mchName+' 礼遇退款',10:result.billList[i].mchName+' 礼遇退款',11:'手续费'};
        let logo = {0:'4', 1:'1', 2:'1', 3:'1', 4:'6', 5:'2', 6:'1', 7:'3',8:'4',9:'5',10:'5',11:'7'};
        let _date2 = result.billList[i].date.substr(0,7);
        if(date == _date2){
            let obj = result.billList[i];
            let weekarr = getPtWeek(obj.date).split("|");
            obj.week = weekarr[0];//显示的星期
            obj.weekdate = weekarr[1];//显示月份和日期
            let data = {week:obj.week,weekdate:obj.weekdate,amount:obj.amount,
                balance:obj.balance,statusText:type[obj.sourceId],type:obj.type,logo:logo[obj.sourceId],status:obj.status};
            _obj.arr[_obj.arr.length-1].items.push(data);
            count++;
        }else {
            date = _date2;
            for(let j =0; j< result.monthAmount.length;j++){
                if(date == result.monthAmount[j].date){
                    let _date = new Date(result.monthAmount[j].date);
                    let curMonth = new Date().getMonth();
                    if(curMonth == _date.getMonth()){
                        _date = "本月";
                    }else{
                        _date = _date.getMonth()+1+"月";
                    }
                    let weekarr = getPtWeek(result.billList[i].date).split("|");
                    result.billList[i].week = weekarr[0];//显示的星期
                    result.billList[i].weekdate = weekarr[1];//显示月份和日期
                    let data = {week:result.billList[i].week,weekdate:result.billList[i].weekdate,amount:result.billList[i].amount,
                        balance:result.billList[i].balance,statusText:type[result.billList[i].sourceId],type:result.billList[i].type,logo:logo[result.billList[i].sourceId],status:result.billList[i].status};
                    let obj ={date:_date,income:result.monthAmount[j].income,expend:result.monthAmount[j].expend,items:[data]};
                    _obj.arr.push(obj);
                    count++;
                }
            }
        }
    }
}else if(result.msg){
    ctx.body = result.msg;
}
_obj.count = count;
console.log('/accountRecord : post :openid='+ctx.session.vpOpenId +' : 回传数据：'+JSON.stringify(_obj));
ctx.body = _obj;

页面部分代码

if (!data.msg) {//请求成功
    if(data.arr.length > 0){
        for (var i in data.arr){
            if(data.arr[i].date == vm.$data.date){
                vm.$data.series[vm.$data.series.length-1].items = vm.$data.series[vm.$data.series.length-1].items.concat(data.arr[i].items);
            }else {
                vm.$data.date=data.arr[i].date;
                var arr2 ={date:data.arr[i].date,income:data.arr[i].income,expend:data.arr[i].expend,items:data.arr[i].items};
                vm.$data.series.push(arr2);
            }
        }
    }
    if(data.count < 10){
        // 锁定
        me.lock('down');
        // 无数据
        me.noData();
        setTimeout(function(){
            $('.dropload-down').hide();
        },1000);
    }
    vm.num ++;
}

页面显示效果

作者：fozero
声明：原创文章，转载请注意出处！http://www.jianshu.com/p/e0ac1eb26ed2
标签：前端，js