DHL 快递跟踪查询

 

思路描述：主要使用正则表达式解析。

返回一个跟踪步骤列表。

1. public class TrackingData
2.     {
3.         public string time { get; set; }
4.         public string context { get; set; }
5.     }
7.     public class DHLExpressTrackingHelper
8.     {
9.         private static string urlFormat = "http://webtrack.dhlglobalmail.com/?trackingnumber={0}";
11.         public static List<TrackingData> GetTrackingData(string trackCode)
12.         {
13.             //trackCode = "A150529020091";
14.             WebMocker dhlMocker = new WebMocker();
15.             var url = string.Format(urlFormat, trackCode);
16.             var html = dhlMocker.Get(url);
18.             //1
19.             var patternOLTag = "<ol.*?>(?<olvalue>.*?)</ol>";
20.             var match = Regex.Match(html, patternOLTag, RegexOptions.Multiline | RegexOptions.Singleline);
21.             if (match.Success)
22.             {
23.                 var olValue = match.Groups["olvalue"].Value;
24.                 return ParseTrackingData(olValue);
25.             }
27.             return new List<TrackingData>();
28.         }
30.         private static List<TrackingData> ParseTrackingData(string olValue)
31.         {
32.             var patternLITag = "<li.*? class=\"(?<className>.*?)\".*?>(?<content>.*?)</li>";
34.             var list = new List<TrackingData>();
36.             string datePrefix = null;
38.             foreach (Match item in Regex.Matches(olValue, patternLITag, RegexOptions.Singleline | RegexOptions.Multiline | RegexOptions.IgnoreCase))
39.             {
40.                 var className = item.Groups["className"].Value;
41.                 var content = item.Groups["content"].Value;
42.                 if (className == "timeline-date")
43.                 {
44.                     datePrefix = content;
45.                 }
46.                 else if (className.Contains("timeline-event"))
47.                 {
48.                     var pp = "<div.*?class=\"(?<divClassName>.*?)\".*?>(?<divContent>.*?)</div>";
50.                     TrackingData trackingData = null;
52.                     foreach (Match subItem in Regex.Matches(content, pp, RegexOptions.Singleline | RegexOptions.Multiline | RegexOptions.IgnoreCase))
53.                     {
54.                         var divClassName = subItem.Groups["divClassName"].Value.Trim();
55.                         var subContent = subItem.Groups["divContent"].Value.Trim();
56.                         if (divClassName == "timeline-time")
57.                         {
58.                             subContent = Regex.Replace(subContent, "<[^<]*>", "");
59.                             trackingData = new TrackingData();
60.                             trackingData.time = datePrefix + " " + subContent;
61.                         }
62.                         else if (divClassName == "timeline-location")
63.                         {
64.                             trackingData.context += subContent + " ";
65.                         }
66.                         else if (divClassName == "timeline-description")
67.                         {
68.                             trackingData.context += subContent + " ";
69.                         }
70.                         //else if (divClassName == "timeline-location timeline-location-responsive")
71.                         //{
72.                         // trackingData.Description += subContent;
73.                         //}
74.                     }
76.                     list.Add(trackingData);
77.                 }
78.             }
80.             //foreach (var item in list)
81.             //{
82.             // Console.WriteLine(item.DateString + "--" + item.Description);
83.             //}
84.             return list;
85.         }
86.     }