抓取json数据

wxfy2011

抓取http://jipiao.9588.com的机票数据，我抓包到后台地址
http://jipiao.9588.com/Flight/Fl ... =jsonp1401351764419
抓包返回一堆json格式的数据

[JavaScript] 纯文本查看 复制代码

jsonp1401351764419({"FlightItems":[{"Airline":"MU","AirportTax":50.0,"BasePrice":1130.0,"Cabins":[{"AdultPrice":3160.0,"CabinDesc":0,"CabinType":"F","ChildiePrice":1580.0,"Code":"F","DiscountRate":"全价","DiscountRateExp":100,"InfantPrice":320.0,"IsApply":false,"MarketingInfo":null,"Number":1,"SpecialOfferId":-1,"SpecialOfferTicketType":3,"RuleUrl":"http://jipiao.9588.com/Flight/ruleHtml?SpecialId=-1&CabinNo=F&FlyDate=05%2F29%2F2014%2000%3A00%3A00&AirLine=MU&DstAirportCode=PEK&OrgAirportCode=SHA","Tips":[],"SubtractPrice":3160.0,"SubtractAdultPrice":0.0,"SubtractChildiePrice":0.0,"SubtractInfantPrice":0.0,"ContainInsure":false}],"OrgAirport":"SHA","DstAirport":"PEK","DstDateTime":"2014-05-29 19:50","FlightNo":"MU5181","FuelTax":120.0,"HasMeal":true,"OpenCabinsCode":"F,","OrgTerm":"T2","DstTerm":"T2","MealCode":"D","OrgDateTime":"2014-05-29 17:40","PlaneStyle":"76A","PlaneUrl":"http://jipiao.9588.com/Flight/planeHtml?PlaneCode=76A","StopNumber":0,"FlyTime":130,"StopUrl":"http://jipiao.9588.com/Flight/stopHtml?FlightNo=MU5181&TravelStartDate=05%2F29%2F2014%2000%3A00%3A00","DstAirportName":"北京首都","OrgAirportName":"上海虹桥","AirlineName":"东方航空","PlaneType":" A ","Distance":1178,"TrunNum":0,"DstCityName":"","OrgCityName":""},{"Airline":"CA","AirportTax":50.0,"BasePrice":1130.0,"Cabins":[{"AdultPrice":4520.0,"CabinDesc":0,"CabinType":"F","ChildiePrice":1580

我上面地址
http://jipiao.9588.com/Flight/Fl ... =jsonp1401351764419
用httphelper抓取不成功，把jsoncallback=jsonp1401351764419 ，1401351764419换成毫秒也不行
最后发现这个地址有时间限制，在浏览器中开始几秒可以，过段时间就不行了。
我的代码如下

[C#] 纯文本查看 复制代码

           Random Random1 = new Random();
            DateTime d1 = new DateTime(1970, 1, 1);
            DateTime d2 = DateTime.Now.ToUniversalTime();
            TimeSpan ts = new TimeSpan(d2.Ticks - d1.Ticks);
            long begintime = (long)ts.TotalSeconds;
            int a = Random1.Next(100, 999);
           string aa = Convert.ToString(begintime) + Convert.ToString(a);

           HttpHelper  http = new HttpHelper();
           HttpItem item = new HttpItem()
            {
                URL = "http://jipiao.9588.com/Flight/FlightInfo?traveltype=Single&segnum=0&quantity=1&MoreTrip%5B0%5D.fromcity=%25E4%25B8%258A%25E6%25B5%25B7&MoreTrip%5B0%5D.tocity=%25E5%258C%2597%25E4%25BA%25AC&MoreTrip%5B0%5D.from=SHH&MoreTrip%5B0%5D.to=BJS&MoreTrip%5B0%5D.date=05%2F30%2F2014%2000%3A00%3A00&MoreTrip%5B1%5D.date=06%2F02%2F2014%2000%3A00%3A00&jsoncallback=jsonp"+aa,// URL     必需项   
                Method = "get",//URL     可选项 默认为Get   
                IsToLower = false,//得到的HTML代码是否转成小写     可选项默认转小写   
                Referer = "http://jipiao.9588.com",//来源URL     可选项   
                Timeout = 100000,//连接超时时间     可选项默认为100000   
                //Allowautoredirect = true,//是否根据301跳转     可选项   
                UserAgent = "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)",//用户的浏览器类型，版本，操作系统     可选项有默认值   
                ContentType = "text/html",//返回类型    可选项有默认值   
            };

            result = http.GetHtml(item);
            string html = result.Html;

站长苏飞

你访问一下页面会动态生成的，访问之前先取出这个值，然后再去获取就行了

wxfy2011

站长苏飞 发表于 2014-5-29 16:47
你访问一下页面会动态生成的，访问之前先取出这个值，然后再去获取就行了

动态生成什么值，你是指“jsoncallback=jsonp1401351764419”这个吗？我看这个1401351764419这个值就是时间换成毫秒了

inghot

那网站卡死人不偿命啊。。。。半天打不开。。

站长苏飞

网站 打不开，呵呵，

wxfy2011

inghot 发表于 2014-5-29 16:56
那网站卡死人不偿命啊。。。。半天打不开。。

刚才好像有点问题，现在好了

wxfy2011

站长苏飞 发表于 2014-5-29 16:57
网站 打不开，呵呵，

刚才好像有点问题，现在好了

站长苏飞

老样子单击没有反映，

wxfy2011

站长苏飞 发表于 2014-5-29 17:03
老样子单击没有反映，

真是怪了，我这边没事的，要不等老大有空了再帮忙给我看看吧，谢谢啦

站长苏飞

wxfy2011 发表于 2014-5-29 17:05
真是怪了，我这边没事的，要不等老大有空了再帮忙给我看看吧，谢谢啦

好的，现在是单击没有反映，