npm install superagent --save

var superagent = require('superagent')
var express = require('express');
var app = express();
var router = express.Router();
var stationobj = require('../models/query');router.post("/", function(req,res,next){  // 前端请求用postvar params = req.bodyvar fromsta = 'BJP';var tosta = 'HZH';var listrpage = params.listrpage?params.listrpage:1;for(let i in stationobj){ // 把车站名解析成三字码fromsta = stationobj[params.FromStation]tosta = stationobj[params.ToStation]}
//获取查询参数
var config = {time:params.FromDate,//日期格式必须是这样from_station:fromsta,//始发站车站代码，这里是北京北end_station:tosta,//车次
};// https://kyfw.12306.cn/otn/leftTicket/queryO?leftTicketDTO.train_date=2018-10-20&leftTicketDTO.from_station=HZH&leftTicketDTO.to_station=SHH&purpose_codes=ADULT
const url = 'https://kyfw.12306.cn/otn/leftTicket/queryO?leftTicketDTO.train_date='+config.time+'&leftTicketDTO.from_station='+config.from_station+'&leftTicketDTO.to_station='+config.end_station+'&purpose_codes=ADULT'let lists = []superagent.get(url).end(function(response,result){if (result.statusCode==200) {const r = result.bodyconst flag = r.data.flagconst map = r.data.mapconst ress = r.data.resultlet priceParams = {}ress.forEach((item,index)=>{console.log(item.split('|'))let list = {}list.train_id = item.split('|')[2]list.train_no = item.split('|')[3]for(var key in stationobj){if(stationobj[key]===item.split('|')[4]){list.from_station_name = key}if(stationobj[key]===item.split('|')[7]){list.to_station_name = key}}list.start_time = item.split('|')[8]list.arrive_time = item.split('|')[9]list.duration = item.split('|')[10].split(':')[0]+'时'+item.split('|')[10].split(':')[1]+'分'list.if_can_by = item.split('|')[11]list.leave_time = item.split('|')[13]list.seat_type = item.split('|')[15]list.seat_types = item.split('|')[35]list.from_station_no = item.split('|')[16]list.to_station_no = item.split('|')[17]// 普通K：21：软卧、 24：无座  25：  26：硬卧  27：硬座  // 普通T：19:高级软  20：其它  21：软卧  24：无座  26：硬卧  27：硬座// 普通Z：19:高级软  21：软卧  24：无座  26：硬卧  27：硬座// 普通Y：22：软座   24：无座  27：硬座// 高铁G：23：特等   24：无座  28：二等  29：一等  30：商务// 城际C：23：特等   24：无座  28：二等  29：一等  30：商务 // 动车D：21：软卧   24：无座  28：二等  29：一等  31：动卧 if(list.train_no.substr(0,1)=='K'||list.train_no.substr(0,1)=='T'||list.train_no.substr(0,1)=='Z'){list.zc0 = '软卧'list.zc1 = '硬卧'list.zc2 = '硬座'list.zc3 = '无座'list.num0 = item[23]?'有票':'无票'list.num1 = item[28]?'有票':'无票'list.num2 = item[29]?'有票':'无票'list.num3 = item[26]?'有票':'无票'
                }if(list.train_no.substr(0,1)=='Y'){list.zc0 = '软座'list.zc1 = '硬座'list.zc2 = '无座'list.zc3 = ''list.num0 = item[24]?'有票':'无票'list.num1 = item[29]?'有票':'无票'list.num2 = item[26]?'有票':'无票'list.num3 = ''}if(list.train_no.substr(0,1)=='D'){list.zc0 = '一等座'list.zc1 = '二等座'list.zc2 = '无座'list.zc3 = ''list.num0 = item[31]?'有票':'无票'list.num1 = item[30]?'有票':'无票'list.num2 = item[26]?'有票':'无票'list.num3 = ''}if(list.train_no.substr(0,1)=='G'||list.train_no.substr(0,1)=='C'){list.zc0 = '商务座'list.zc1 = '一等座'list.zc2 = '二等座'list.zc3 = '无座'list.num0 = item[32] || item[25]?'有票':'无票'list.num1 = item[31]?'有票':'无票'list.num2 = item[30]?'有票':'无票'list.num3 = item[26]?'有票':'无票'}lists.push(list)})
              res.json({status:true,msg:'查询成功',data: lists});} else {res.json({status:false,msg:'查询失败',data:{}});}})});module.exports = router;