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使用c#中的HttpWebRequest实现12306余票查询
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<h2 id="准备工作"><a href="#准备工作" class="headerlink" title="准备工作"></a>准备工作</h2><ol>
<li>下载用于解析JSON的类库(Newtonsoft.Json.dll)(下载地址:<a href="https://archive.codeplex.com/?p=json" target="_blank" rel="noopener">Newtonsoft.Json.dll</a>)；</li>
<li>在C#项目中添加对其的引用。</li>
<li>在程序中导入命名空间:<figure class="highlight csharp"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">using</span> Newtonsoft.Json;</span><br><span class="line"><span class="keyword">using</span> Newtonsoft.Json.Linq;</span><br><span class="line"><span class="keyword">using</span> System.Net;</span><br><span class="line"><span class="keyword">using</span> System.Text.RegularExpressions;</span><br><span class="line"><span class="keyword">using</span> System.Xml;</span><br></pre></td></tr></table></figure>
</li>
</ol>
<a id="more"></a>
<h2 id="思路"><a href="#思路" class="headerlink" title="思路"></a>思路</h2><h3 id="API地址"><a href="#API地址" class="headerlink" title="API地址"></a>API地址</h3><p>在浏览器中打开12306主页，点击<strong>余票查询</strong>，并使用浏览器中的开发者工具，进行抓包。这里，我们查询的是2018.06.25的上海至长沙的车票信息。<br><img data-src="/images/trainticket1.jpg" alt="开发者工具抓包"><br>此时浏览器发送请求的地址为：<br><code>https://kyfw.12306.cn/otn/leftTicket/query?leftTicketDTO.train_date=2018-06-25&leftTicketDTO.from_station=SHH&leftTicketDTO.to_station=CSQ&purpose_codes=ADULT</code><br>由此,我们不难分析出API地址为：<br><figure class="highlight csharp"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">string</span> url=<span class="string">"https://kyfw.12306.cn/otn/leftTicket/query?leftTicketDTO.train_date={0}&leftTicketDTO.from_station={1}&leftTicketDTO.to_station={2}&purpose_codes={3}"</span>;</span><br><span class="line">url=<span class="keyword">string</span>.Format(url,date,<span class="keyword">from</span>,to,id);</span><br></pre></td></tr></table></figure></p>
<p>其中，date代表出发日(格式为yyyy-MM-dd),from代表出发站的代码，to代表到达站的代码，id代表车票类型(成人为<code>ADULT</code>,学生为<code>OX00</code>);</p>
<h3 id="车站代码"><a href="#车站代码" class="headerlink" title="车站代码"></a>车站代码</h3><p>车站对应的代码可在此下载:<a href="https://kyfw.12306.cn/otn/resources/js/framework/station_name.js?station_version=1.9055" target="_blank" rel="noopener">https://kyfw.12306.cn/otn/resources/js/framework/station_name.js?station_version=1.9055</a><br>我们可以使用正则表达式从中提取出关键信息，并保存在一个XML文档中，便于以后的使用。<br><figure class="highlight csharp"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br></pre></td><td class="code"><pre><span class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">void</span> <span class="title">StationNameXml</span>(<span class="params"></span>)</span></span><br><span class="line"><span class="function"></span> {</span><br><span class="line"> <span class="keyword">string</span> nowpath = Environment.CurrentDirectory;</span><br><span class="line"> <span class="keyword">if</span> (Directory.Exists(nowpath+<span class="string">"/Data"</span>)==<span class="literal">false</span>)</span><br><span class="line"> Directory.CreateDirectory(nowpath + <span class="string">"/Data"</span>);<span class="comment">//创建新路径</span></span><br><span class="line"> <span class="keyword">if</span> (File.Exists(nowpath + <span class="string">"/Data/StationName.xml"</span>) == <span class="literal">true</span>)</span><br><span class="line"> <span class="keyword">return</span>;</span><br><span class="line"></span><br><span class="line">HttpWebRequest request;</span><br><span class="line"> HttpWebResponse response;</span><br><span class="line"></span><br><span class="line"> <span class="keyword">string</span> url=<span class="string">@"https://kyfw.12306.cn/otn/resources/js/framework/station_name.js?station_version=1.9055"</span>;</span><br><span class="line"></span><br><span class="line"> request = (HttpWebRequest)WebRequest.Create(url);</span><br><span class="line"> request.Method = <span class="string">"GET"</span>;</span><br><span class="line"> request.Credentials = CredentialCache.DefaultCredentials;</span><br><span class="line"> request.UserAgent = <span class="string">"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36"</span>;</span><br><span class="line"></span><br><span class="line"> <span class="keyword">string</span> str = <span class="keyword">string</span>.Empty;</span><br><span class="line"> <span class="keyword">try</span></span><br><span class="line"> {</span><br><span class="line"> response = (HttpWebResponse)request.GetResponse();</span><br><span class="line"> <span class="keyword">if</span> (response.StatusCode == HttpStatusCode.OK)</span><br><span class="line"> {</span><br><span class="line"> StreamReader sr = <span class="keyword">new</span> StreamReader(response.GetResponseStream(), Encoding.GetEncoding(<span class="string">"UTF-8"</span>));</span><br><span class="line"> str = sr.ReadToEnd();</span><br><span class="line"> sr.Close();</span><br><span class="line"> response.Close();<span class="comment">//关闭response响应流</span></span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">else</span></span><br><span class="line"> <span class="keyword">throw</span> <span class="keyword">new</span> Exception();</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">catch</span>(Exception e)</span><br><span class="line"> {</span><br><span class="line"> Console.WriteLine(e.Message);</span><br><span class="line"> }</span><br><span class="line"></span><br><span class="line"> <span class="keyword">string</span> pattern = <span class="string">@"@\S{2,5}?[|](?<Name>\S{1,8}?)[|](?<Code>\S{3,5}?)[|]"</span>;</span><br><span class="line"> Regex r = <span class="keyword">new</span> Regex(pattern, RegexOptions.ExplicitCapture);</span><br><span class="line"></span><br><span class="line"> XmlDocument xmldoc = <span class="keyword">new</span> XmlDocument();</span><br><span class="line"> XmlDeclaration xmldecl;</span><br><span class="line"></span><br><span class="line"> xmldecl = xmldoc.CreateXmlDeclaration(<span class="string">"1.0"</span>, <span class="string">"UTF-8"</span>, <span class="literal">null</span>);<span class="comment">//加入XML的声明段落</span></span><br><span class="line"> xmldoc.AppendChild(xmldecl);</span><br><span class="line"></span><br><span class="line"> XmlElement root = xmldoc.CreateElement(<span class="string">""</span>, <span class="string">"Dict"</span>, <span class="string">""</span>);<span class="comment">//加入一个根元素</span></span><br><span class="line"> xmldoc.AppendChild(root);</span><br><span class="line"></span><br><span class="line"> MatchCollection mc = r.Matches(str);</span><br><span class="line"> <span class="keyword">foreach</span> (Match m <span class="keyword">in</span> mc)</span><br><span class="line"> {</span><br><span class="line"> GroupCollection <span class="keyword">group</span> = m.Groups;</span><br><span class="line"> XmlNode node = xmldoc.CreateNode(XmlNodeType.Element, <span class="string">"Pair"</span>, <span class="literal">null</span>);</span><br><span class="line"></span><br><span class="line"> XmlNode temp = xmldoc.CreateNode(XmlNodeType.Element, <span class="string">"Station"</span>, <span class="literal">null</span>);</span><br><span class="line"> temp.InnerText = <span class="keyword">group</span>[<span class="string">"Name"</span>].Value; </span><br><span class="line"> node.AppendChild(temp);</span><br><span class="line"></span><br><span class="line"> XmlNode temp2 = xmldoc.CreateNode(XmlNodeType.Element, <span class="string">"Code"</span>, <span class="literal">null</span>);</span><br><span class="line"> temp2.InnerText = <span class="keyword">group</span>[<span class="string">"Code"</span>].Value;</span><br><span class="line"> node.AppendChild(temp2);</span><br><span class="line"></span><br><span class="line"> root.AppendChild(node);</span><br><span class="line"> }</span><br><span class="line"> xmldoc.Save(nowpath+<span class="string">"/Data/"</span>+<span class="string">"StationName.xml"</span>);</span><br><span class="line"> }</span><br></pre></td></tr></table></figure></p>
<p><img data-src="/images/trainticket2.jpg" alt="车站代码"><br>依据中文车站名获取对应车站代码的方法为:<br><figure class="highlight csharp"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br></pre></td><td class="code"><pre><span class="line"><span class="function"><span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">string</span> <span class="title">StationCode</span>(<span class="params"><span class="keyword">string</span> StationName</span>)</span></span><br><span class="line"><span class="function"></span>{</span><br><span class="line"> XmlDocument doc = <span class="keyword">new</span> XmlDocument();</span><br><span class="line"> doc.Load(Environment.CurrentDirectory + <span class="string">"/Data/StationName.xml"</span>);</span><br><span class="line"> XmlNodeList data = doc.DocumentElement.ChildNodes;</span><br><span class="line"> <span class="keyword">foreach</span> (XmlNode node <span class="keyword">in</span> data)</span><br><span class="line"> {</span><br><span class="line"> XmlElement xe = (XmlElement)node;</span><br><span class="line"> XmlNodeList xnl0 = xe.ChildNodes;</span><br><span class="line"> <span class="keyword">string</span> s = xnl0.Item(<span class="number">0</span>).InnerText;</span><br><span class="line"> <span class="keyword">if</span>(s==StationName)</span><br><span class="line"> {</span><br><span class="line"> <span class="keyword">return</span> xnl0.Item(<span class="number">1</span>).InnerText;</span><br><span class="line"> }</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">return</span> <span class="keyword">string</span>.Empty;</span><br><span class="line">}</span><br></pre></td></tr></table></figure></p>
<h3 id="数据模型"><a href="#数据模型" class="headerlink" title="数据模型"></a>数据模型</h3><p>为了存储查询结果，我们需要构建一个车票的数据模型，具体如下；<br><figure class="highlight csharp"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br></pre></td><td class="code"><pre><span class="line"> <span class="keyword">public</span> <span class="keyword">class</span> <span class="title">Ticket</span></span><br><span class="line"> {</span><br><span class="line"> <span class="meta">#<span class="meta-keyword">region</span> 数据模型</span></span><br><span class="line"> <span class="keyword">private</span> <span class="keyword">string</span> trainid=<span class="keyword">string</span>.Empty;<span class="comment">//车次</span></span><br><span class="line"> <span class="keyword">private</span> <span class="keyword">string</span> fromstation = <span class="string">"--"</span>;<span class="comment">//出发站</span></span><br><span class="line"> <span class="keyword">private</span> <span class="keyword">string</span> totation = <span class="string">"--"</span>;<span class="comment">//到达站</span></span><br><span class="line"> <span class="keyword">private</span> <span class="keyword">string</span> ticketdate = <span class="keyword">string</span>.Empty;<span class="comment">//车票日期</span></span><br><span class="line"> <span class="keyword">private</span> <span class="keyword">string</span> starttime = <span class="string">"--"</span>;<span class="comment">//发车时间</span></span><br><span class="line"> <span class="keyword">private</span> <span class="keyword">string</span> arrivetime = <span class="string">"--"</span>;<span class="comment">//到达时间</span></span><br><span class="line"> <span class="keyword">private</span> <span class="keyword">string</span> lastedtime = <span class="string">"--"</span>;<span class="comment">//历时</span></span><br><span class="line"> <span class="keyword">private</span> <span class="keyword">string</span> tzNum = <span class="string">"--"</span>;<span class="comment">//特等座</span></span><br><span class="line"> <span class="keyword">private</span> <span class="keyword">string</span> ydNum = <span class="string">"--"</span>;<span class="comment">//一等座</span></span><br><span class="line"> <span class="keyword">private</span> <span class="keyword">string</span> edNum = <span class="string">"--"</span>;<span class="comment">//二等座</span></span><br><span class="line"> <span class="keyword">private</span> <span class="keyword">string</span> grwNum = <span class="string">"--"</span>;<span class="comment">//高级软卧</span></span><br><span class="line"> <span class="keyword">private</span> <span class="keyword">string</span> rwNum = <span class="string">"--"</span>;<span class="comment">//软卧</span></span><br><span class="line"> <span class="keyword">private</span> <span class="keyword">string</span> dwNum = <span class="string">"--"</span>;<span class="comment">//动卧</span></span><br><span class="line"> <span class="keyword">private</span> <span class="keyword">string</span> ywNum = <span class="string">"--"</span>;<span class="comment">//硬卧</span></span><br><span class="line"> <span class="keyword">private</span> <span class="keyword">string</span> rzNum = <span class="string">"--"</span>;<span class="comment">//软座</span></span><br><span class="line"> <span class="keyword">private</span> <span class="keyword">string</span> yzNum = <span class="string">"--"</span>;<span class="comment">//硬座</span></span><br><span class="line"> <span class="keyword">private</span> <span class="keyword">string</span> wzNum = <span class="string">"--"</span>;<span class="comment">//无座</span></span><br><span class="line"> <span class="keyword">private</span> <span class="keyword">string</span> qtNum = <span class="string">"--"</span>;<span class="comment">//其他</span></span><br><span class="line"> <span class="keyword">private</span> <span class="keyword">string</span> identity = <span class="keyword">string</span>.Empty;<span class="comment">//车票类型(学生/成人)</span></span><br><span class="line"> <span class="keyword">public</span> <span class="keyword">string</span> TrainId { <span class="keyword">get</span> { <span class="keyword">return</span> trainid; } <span class="keyword">set</span> { trainid = <span class="keyword">value</span>; } }</span><br><span class="line"> <span class="keyword">public</span> <span class="keyword">string</span> FromStation { <span class="keyword">get</span> { <span class="keyword">return</span> fromstation; } <span class="keyword">set</span> { fromstation = <span class="keyword">value</span>; } }</span><br><span class="line"> <span class="keyword">public</span> <span class="keyword">string</span> ToStation { <span class="keyword">get</span> { <span class="keyword">return</span> totation; } <span class="keyword">set</span> { totation = <span class="keyword">value</span>; } }</span><br><span class="line"> <span class="keyword">public</span> <span class="keyword">string</span> TicketDate { <span class="keyword">get</span> { <span class="keyword">return</span> ticketdate; } <span class="keyword">set</span> { ticketdate = <span class="keyword">value</span>; } }</span><br><span class="line"> <span class="keyword">public</span> <span class="keyword">string</span> StartTime { <span class="keyword">get</span> { <span class="keyword">return</span> starttime; } <span class="keyword">set</span> { starttime = <span class="keyword">value</span>; } }</span><br><span class="line"> <span class="keyword">public</span> <span class="keyword">string</span> ArriveTime { <span class="keyword">get</span> { <span class="keyword">return</span> arrivetime; }<span class="keyword">set</span> { arrivetime = <span class="keyword">value</span>; } }</span><br><span class="line"> <span class="keyword">public</span> <span class="keyword">string</span> LastedTime { <span class="keyword">get</span> { <span class="keyword">return</span> lastedtime; } <span class="keyword">set</span> { lastedtime = <span class="keyword">value</span>; } }</span><br><span class="line"> <span class="keyword">public</span> <span class="keyword">string</span> TzNum { <span class="keyword">get</span> { <span class="keyword">return</span> tzNum; } <span class="keyword">set</span> { tzNum = <span class="keyword">value</span>; } }</span><br><span class="line"> <span class="keyword">public</span> <span class="keyword">string</span> YdNum { <span class="keyword">get</span> { <span class="keyword">return</span> ydNum; } <span class="keyword">set</span> { ydNum = <span class="keyword">value</span>; } }</span><br><span class="line"> <span class="keyword">public</span> <span class="keyword">string</span> EdNum { <span class="keyword">get</span> { <span class="keyword">return</span> edNum; } <span class="keyword">set</span> { edNum = <span class="keyword">value</span>; } }</span><br><span class="line"> <span class="keyword">public</span> <span class="keyword">string</span> GrwNum { <span class="keyword">get</span> { <span class="keyword">return</span> grwNum; } <span class="keyword">set</span> { grwNum = <span class="keyword">value</span>; } }</span><br><span class="line"> <span class="keyword">public</span> <span class="keyword">string</span> RwNum { <span class="keyword">get</span> { <span class="keyword">return</span> rwNum; } <span class="keyword">set</span> { rwNum = <span class="keyword">value</span>; } }</span><br><span class="line"> <span class="keyword">public</span> <span class="keyword">string</span> DwNum { <span class="keyword">get</span> { <span class="keyword">return</span> dwNum; } <span class="keyword">set</span> { dwNum = <span class="keyword">value</span>; } }</span><br><span class="line"> <span class="keyword">public</span> <span class="keyword">string</span> YwNum {<span class="keyword">get</span>{ <span class="keyword">return</span> ywNum; }<span class="keyword">set</span>{ ywNum = <span class="keyword">value</span>; } }</span><br><span class="line"> <span class="keyword">public</span> <span class="keyword">string</span> RzNum {<span class="keyword">get</span>{ <span class="keyword">return</span> rzNum; }<span class="keyword">set</span>{ rzNum = <span class="keyword">value</span>; } }</span><br><span class="line"> <span class="keyword">public</span> <span class="keyword">string</span> YzNum {<span class="keyword">get</span>{ <span class="keyword">return</span> yzNum; }<span class="keyword">set</span>{ yzNum = <span class="keyword">value</span>; } }</span><br><span class="line"> <span class="keyword">public</span> <span class="keyword">string</span> WzNum {<span class="keyword">get</span>{ <span class="keyword">return</span> wzNum; }<span class="keyword">set</span>{ wzNum = <span class="keyword">value</span>; } }</span><br><span class="line"> <span class="keyword">public</span> <span class="keyword">string</span> QtNum {<span class="keyword">get</span>{ <span class="keyword">return</span> qtNum; }<span class="keyword">set</span>{ qtNum = <span class="keyword">value</span>; } }</span><br><span class="line"> <span class="keyword">public</span> <span class="keyword">string</span> Identity { <span class="keyword">get</span> { <span class="keyword">return</span> identity; }<span class="keyword">set</span> { identity = <span class="keyword">value</span>; } }</span><br><span class="line"> <span class="meta">#<span class="meta-keyword">endregion</span></span></span><br><span class="line"> <span class="function"><span class="keyword">public</span> <span class="title">Ticket</span>(<span class="params"></span>)</span> { }</span><br><span class="line"></span><br><span class="line"> <span class="function"><span class="keyword">public</span> Dictionary<<span class="keyword">string</span>, <span class="keyword">string</span>> <span class="title">getMap</span>(<span class="params"></span>)</span></span><br><span class="line"><span class="function"></span> {</span><br><span class="line"> Dictionary<<span class="keyword">string</span>, <span class="keyword">string</span>> result = <span class="keyword">new</span> Dictionary<<span class="keyword">string</span>, <span class="keyword">string</span>>();</span><br><span class="line"> result.Add(<span class="string">"车次"</span>, trainid);</span><br><span class="line"> result.Add(<span class="string">"出发站"</span>, FromStation);</span><br><span class="line"> result.Add(<span class="string">"到达站"</span>, ToStation);</span><br><span class="line"> result.Add(<span class="string">"发车时间"</span>, StartTime);</span><br><span class="line"> result.Add(<span class="string">"到达时间"</span>, ArriveTime);</span><br><span class="line"> result.Add(<span class="string">"历时"</span>, LastedTime);</span><br><span class="line"> result.Add(<span class="string">"特等座"</span>, TzNum);</span><br><span class="line"> result.Add(<span class="string">"一等座"</span>, YdNum);</span><br><span class="line"> result.Add(<span class="string">"二等座"</span>, EdNum);</span><br><span class="line"> result.Add(<span class="string">"高级软卧"</span>, GrwNum);</span><br><span class="line"> result.Add(<span class="string">"软卧"</span>, RwNum);</span><br><span class="line"> result.Add(<span class="string">"动卧"</span>, DwNum);</span><br><span class="line"> result.Add(<span class="string">"硬卧"</span>, YwNum);</span><br><span class="line"> result.Add(<span class="string">"软座"</span>, RzNum);</span><br><span class="line"> result.Add(<span class="string">"硬座"</span>, YzNum);</span><br><span class="line"> result.Add(<span class="string">"无座"</span>, WzNum);</span><br><span class="line"> result.Add(<span class="string">"其他"</span>, QtNum);</span><br><span class="line"> <span class="keyword">return</span> result;</span><br><span class="line"> }</span><br><span class="line">}</span><br></pre></td></tr></table></figure></p>
<h3 id="解析JSON"><a href="#解析JSON" class="headerlink" title="解析JSON"></a>解析JSON</h3><p><img data-src="/images/trainticket3.jpg" alt="JSON格式的字符串"><br>返回的报文为一个JSON格式的字符串，里面包含有各类车票信息、发车时间以及历时，为了对其进行解析，我们需要下载一个用于解析JSON的类库(下载地址:<a href="https://archive.codeplex.com/?p=json" target="_blank" rel="noopener">Newtonsoft.Json.dll</a>)<br><figure class="highlight csharp"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br></pre></td><td class="code"><pre><span class="line"><span class="function"><span class="keyword">private</span> <span class="keyword">static</span> Ticket[] <span class="title">SpiderTicket</span>(<span class="params"><span class="keyword">string</span> date, <span class="keyword">string</span> <span class="keyword">from</span>, <span class="keyword">string</span> to, <span class="keyword">string</span> id</span>)</span></span><br><span class="line"><span class="function"></span> {</span><br><span class="line"> HttpWebRequest request;</span><br><span class="line"> HttpWebResponse response;</span><br><span class="line"></span><br><span class="line"> <span class="keyword">string</span> url = <span class="string">"https://kyfw.12306.cn/otn/leftTicket/query?leftTicketDTO.train_date={0}&leftTicketDTO.from_station={1}&leftTicketDTO.to_station={2}&purpose_codes={3}"</span>;</span><br><span class="line"> url = <span class="keyword">string</span>.Format(url, date, <span class="keyword">from</span>, to, id);</span><br><span class="line"></span><br><span class="line"> request = (HttpWebRequest)WebRequest.Create(url);</span><br><span class="line"> request.Method = <span class="string">"GET"</span>;</span><br><span class="line"> request.Credentials = CredentialCache.DefaultCredentials;</span><br><span class="line"> request.UserAgent = <span class="string">"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36"</span>;</span><br><span class="line"></span><br><span class="line"> <span class="keyword">string</span> str = <span class="keyword">string</span>.Empty;</span><br><span class="line"> <span class="keyword">try</span></span><br><span class="line"> {</span><br><span class="line"> response = (HttpWebResponse)request.GetResponse();</span><br><span class="line"> <span class="keyword">if</span> (response.StatusCode == HttpStatusCode.OK)</span><br><span class="line"> {</span><br><span class="line"> StreamReader sr = <span class="keyword">new</span> StreamReader(response.GetResponseStream(), Encoding.GetEncoding(<span class="string">"UTF-8"</span>));</span><br><span class="line"> str = sr.ReadToEnd();</span><br><span class="line"> sr.Close();</span><br><span class="line"> response.Close();<span class="comment">//关闭response响应流</span></span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">else</span></span><br><span class="line"> <span class="keyword">throw</span> <span class="keyword">new</span> Exception();</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">catch</span> (Exception e)</span><br><span class="line"> {</span><br><span class="line"> Console.WriteLine(e.Message);</span><br><span class="line"> }</span><br><span class="line"></span><br><span class="line"> Dictionary<<span class="keyword">string</span>, <span class="keyword">string</span>> map=<span class="keyword">new</span> Dictionary<<span class="keyword">string</span>, <span class="keyword">string</span>>();<span class="comment">//保存返回的JSON串中的车站代码与车站名之间的映</span></span><br><span class="line"> ArrayList AllTicket = <span class="keyword">new</span> ArrayList();<span class="comment">//所有的车票信息</span></span><br><span class="line"></span><br><span class="line"> JObject jo = (JObject)JsonConvert.DeserializeObject(str);</span><br><span class="line"> JToken record = jo[<span class="string">"data"</span>][<span class="string">"map"</span>];</span><br><span class="line"> <span class="keyword">foreach</span> (JProperty item <span class="keyword">in</span> record)</span><br><span class="line"> {</span><br><span class="line"> map.Add(item.Name.ToString(), item.Value.ToString());</span><br><span class="line"> }</span><br><span class="line"></span><br><span class="line"> record = jo[<span class="string">"data"</span>][<span class="string">"result"</span>];</span><br><span class="line"> <span class="keyword">foreach</span> (<span class="keyword">string</span> s <span class="keyword">in</span> record)</span><br><span class="line"> {</span><br><span class="line"> <span class="keyword">string</span>[] result = s.Split(<span class="string">'|'</span>);</span><br><span class="line"> Ticket t = <span class="keyword">new</span> Ticket();</span><br><span class="line"> t.TrainId = result[<span class="number">3</span>];</span><br><span class="line"> t.FromStation = map[result[<span class="number">6</span>]];</span><br><span class="line"> t.ToStation = map[result[<span class="number">7</span>]];</span><br><span class="line"> t.StartTime = result[<span class="number">8</span>];</span><br><span class="line"> t.ArriveTime = result[<span class="number">9</span>];</span><br><span class="line"> t.LastedTime = result[<span class="number">10</span>];</span><br><span class="line"> t.TicketDate = result[<span class="number">13</span>];</span><br><span class="line"> t.DwNum = result[<span class="number">33</span>] != <span class="string">""</span> ? result[<span class="number">33</span>] : t.DwNum;</span><br><span class="line"> t.TzNum = result[<span class="number">32</span>] != <span class="string">""</span> ? result[<span class="number">32</span>] : t.TzNum;</span><br><span class="line"> t.YdNum = result[<span class="number">31</span>] != <span class="string">""</span> ? result[<span class="number">31</span>] : t.YdNum;</span><br><span class="line"> t.EdNum = result[<span class="number">30</span>] != <span class="string">""</span> ? result[<span class="number">30</span>] : t.EdNum;</span><br><span class="line"> t.YzNum = result[<span class="number">29</span>] != <span class="string">""</span> ? result[<span class="number">29</span>] : t.YzNum;</span><br><span class="line"> t.YwNum = result[<span class="number">28</span>] != <span class="string">""</span> ? result[<span class="number">28</span>] : t.YwNum;</span><br><span class="line"> t.WzNum = result[<span class="number">26</span>] != <span class="string">""</span> ? result[<span class="number">26</span>] : t.WzNum;</span><br><span class="line"> t.RzNum = result[<span class="number">24</span>] != <span class="string">""</span> ? result[<span class="number">24</span>] : t.RzNum;</span><br><span class="line"> t.RwNum = result[<span class="number">23</span>] != <span class="string">""</span> ? result[<span class="number">23</span>] : t.RwNum;</span><br><span class="line"> t.GrwNum = result[<span class="number">21</span>] != <span class="string">""</span> ? result[<span class="number">21</span>] : t.GrwNum;</span><br><span class="line"> AllTicket.Add(t);</span><br><span class="line"> }</span><br><span class="line"> Ticket[] All = <span class="keyword">new</span> Ticket[AllTicket.Count];</span><br><span class="line"> <span class="keyword">int</span> flag = <span class="number">0</span>;</span><br><span class="line"> <span class="keyword">foreach</span> (<span class="keyword">object</span> t <span class="keyword">in</span> AllTicket)</span><br><span class="line"> {</span><br><span class="line"> All[flag++] = t <span class="keyword">as</span> Ticket;</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">return</span> All;</span><br><span class="line"> }</span><br></pre></td></tr></table></figure></p>
<h2 id="效果图"><a href="#效果图" class="headerlink" title="效果图"></a>效果图</h2><p><img data-src="/images/spiderticket.jpg" alt><br><img data-src="/images/spiderticket2.jpg" alt><br>项目地址:<a href="https://github.com/ZhaoQi99/EasyLife/tree/Course_Design/" target="_blank" rel="noopener">EasyLife</a></p>
<h2 id="参考博客"><a href="#参考博客" class="headerlink" title="参考博客"></a>参考博客</h2><p><a href="https://blog.csdn.net/xiahn1a/article/details/42584507" target="_blank" rel="noopener">C#调用12306API做余票查询</a>(该参考博客中的方法已不可用)</p>
<h2 id="完整代码"><a href="#完整代码" class="headerlink" title="完整代码"></a>完整代码</h2><figure class="highlight csharp"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br><span class="line">83</span><br><span class="line">84</span><br><span class="line">85</span><br><span class="line">86</span><br><span class="line">87</span><br><span class="line">88</span><br><span class="line">89</span><br><span class="line">90</span><br><span class="line">91</span><br><span class="line">92</span><br><span class="line">93</span><br><span class="line">94</span><br><span class="line">95</span><br><span class="line">96</span><br><span class="line">97</span><br><span class="line">98</span><br><span class="line">99</span><br><span class="line">100</span><br><span class="line">101</span><br><span class="line">102</span><br><span class="line">103</span><br><span class="line">104</span><br><span class="line">105</span><br><span class="line">106</span><br><span class="line">107</span><br><span class="line">108</span><br><span class="line">109</span><br><span class="line">110</span><br><span class="line">111</span><br><span class="line">112</span><br><span class="line">113</span><br><span class="line">114</span><br><span class="line">115</span><br><span class="line">116</span><br><span class="line">117</span><br><span class="line">118</span><br><span class="line">119</span><br><span class="line">120</span><br><span class="line">121</span><br><span class="line">122</span><br><span class="line">123</span><br><span class="line">124</span><br><span class="line">125</span><br><span class="line">126</span><br><span class="line">127</span><br><span class="line">128</span><br><span class="line">129</span><br><span class="line">130</span><br><span class="line">131</span><br><span class="line">132</span><br><span class="line">133</span><br><span class="line">134</span><br><span class="line">135</span><br><span class="line">136</span><br><span class="line">137</span><br><span class="line">138</span><br><span class="line">139</span><br><span class="line">140</span><br><span class="line">141</span><br><span class="line">142</span><br><span class="line">143</span><br><span class="line">144</span><br><span class="line">145</span><br><span class="line">146</span><br><span class="line">147</span><br><span class="line">148</span><br><span class="line">149</span><br><span class="line">150</span><br><span class="line">151</span><br><span class="line">152</span><br><span class="line">153</span><br><span class="line">154</span><br><span class="line">155</span><br><span class="line">156</span><br><span class="line">157</span><br><span class="line">158</span><br><span class="line">159</span><br><span class="line">160</span><br><span class="line">161</span><br><span class="line">162</span><br><span class="line">163</span><br><span class="line">164</span><br><span class="line">165</span><br><span class="line">166</span><br><span class="line">167</span><br><span class="line">168</span><br><span class="line">169</span><br><span class="line">170</span><br><span class="line">171</span><br><span class="line">172</span><br><span class="line">173</span><br><span class="line">174</span><br><span class="line">175</span><br><span class="line">176</span><br><span class="line">177</span><br><span class="line">178</span><br><span class="line">179</span><br><span class="line">180</span><br><span class="line">181</span><br><span class="line">182</span><br><span class="line">183</span><br><span class="line">184</span><br><span class="line">185</span><br><span class="line">186</span><br><span class="line">187</span><br><span class="line">188</span><br><span class="line">189</span><br><span class="line">190</span><br><span class="line">191</span><br><span class="line">192</span><br><span class="line">193</span><br><span class="line">194</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">using</span> Newtonsoft.Json;</span><br><span class="line"><span class="keyword">using</span> Newtonsoft.Json.Linq;</span><br><span class="line"><span class="keyword">using</span> System;</span><br><span class="line"><span class="keyword">using</span> System.Collections;</span><br><span class="line"><span class="keyword">using</span> System.Collections.Generic;</span><br><span class="line"><span class="keyword">using</span> System.IO;</span><br><span class="line"><span class="keyword">using</span> System.Net;</span><br><span class="line"><span class="keyword">using</span> System.Text;</span><br><span class="line"><span class="keyword">using</span> System.Text.RegularExpressions;</span><br><span class="line"><span class="keyword">using</span> System.Xml;</span><br><span class="line"></span><br><span class="line"><span class="keyword">namespace</span> <span class="title">Ticket</span></span><br><span class="line">{</span><br><span class="line"> <span class="keyword">class</span> <span class="title">Program</span></span><br><span class="line"> {</span><br><span class="line"> <span class="function"><span class="keyword">public</span> <span class="keyword">static</span> <span class="keyword">void</span> <span class="title">StationNameXml</span>(<span class="params"></span>)</span></span><br><span class="line"><span class="function"></span> {</span><br><span class="line"> <span class="keyword">string</span> nowpath = Environment.CurrentDirectory;</span><br><span class="line"> <span class="keyword">if</span> (Directory.Exists(nowpath + <span class="string">"/Data"</span>) == <span class="literal">false</span>)</span><br><span class="line"> Directory.CreateDirectory(nowpath + <span class="string">"/Data"</span>);<span class="comment">//创建新路径</span></span><br><span class="line"> <span class="keyword">if</span> (File.Exists(nowpath + <span class="string">"/Data/StationName.xml"</span>) == <span class="literal">true</span>)</span><br><span class="line"> <span class="keyword">return</span>;</span><br><span class="line"></span><br><span class="line"> HttpWebRequest request;</span><br><span class="line"> HttpWebResponse response;</span><br><span class="line"></span><br><span class="line"> <span class="keyword">string</span> url = <span class="string">@"https://kyfw.12306.cn/otn/resources/js/framework/station_name.js?station_version=1.9055"</span>;</span><br><span class="line"></span><br><span class="line"> request = (HttpWebRequest)WebRequest.Create(url);</span><br><span class="line"> request.Method = <span class="string">"GET"</span>;</span><br><span class="line"> request.Credentials = CredentialCache.DefaultCredentials;</span><br><span class="line"> request.UserAgent = <span class="string">"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36"</span>;</span><br><span class="line"></span><br><span class="line"> <span class="keyword">string</span> str = <span class="keyword">string</span>.Empty;</span><br><span class="line"> <span class="keyword">try</span></span><br><span class="line"> {</span><br><span class="line"> response = (HttpWebResponse)request.GetResponse();</span><br><span class="line"> <span class="keyword">if</span> (response.StatusCode == HttpStatusCode.OK)</span><br><span class="line"> {</span><br><span class="line"> StreamReader sr = <span class="keyword">new</span> StreamReader(response.GetResponseStream(), Encoding.GetEncoding(<span class="string">"UTF-8"</span>));</span><br><span class="line"> str = sr.ReadToEnd();</span><br><span class="line"> sr.Close();</span><br><span class="line"> response.Close();<span class="comment">//关闭response响应流</span></span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">else</span></span><br><span class="line"> <span class="keyword">throw</span> <span class="keyword">new</span> Exception();</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">catch</span> (Exception e)</span><br><span class="line"> {</span><br><span class="line"> Console.WriteLine(e.Message);</span><br><span class="line"> }</span><br><span class="line"></span><br><span class="line"> <span class="keyword">string</span> pattern = <span class="string">@"@\S{2,5}?[|](?<Name>\S{1,8}?)[|](?<Code>\S{3,5}?)[|]"</span>;</span><br><span class="line"> Regex r = <span class="keyword">new</span> Regex(pattern, RegexOptions.ExplicitCapture);</span><br><span class="line"></span><br><span class="line"> XmlDocument xmldoc = <span class="keyword">new</span> XmlDocument();</span><br><span class="line"> XmlDeclaration xmldecl;</span><br><span class="line"></span><br><span class="line"> xmldecl = xmldoc.CreateXmlDeclaration(<span class="string">"1.0"</span>, <span class="string">"UTF-8"</span>, <span class="literal">null</span>);<span class="comment">//加入XML的声明段落</span></span><br><span class="line"> xmldoc.AppendChild(xmldecl);</span><br><span class="line"></span><br><span class="line"> XmlElement root = xmldoc.CreateElement(<span class="string">""</span>, <span class="string">"Dict"</span>, <span class="string">""</span>);<span class="comment">//加入一个根元素</span></span><br><span class="line"> xmldoc.AppendChild(root);</span><br><span class="line"></span><br><span class="line"> MatchCollection mc = r.Matches(str);</span><br><span class="line"> <span class="keyword">foreach</span> (Match m <span class="keyword">in</span> mc)</span><br><span class="line"> {</span><br><span class="line"> GroupCollection <span class="keyword">group</span> = m.Groups;</span><br><span class="line"> XmlNode node = xmldoc.CreateNode(XmlNodeType.Element, <span class="string">"Pair"</span>, <span class="literal">null</span>);</span><br><span class="line"></span><br><span class="line"> XmlNode temp = xmldoc.CreateNode(XmlNodeType.Element, <span class="string">"Station"</span>, <span class="literal">null</span>);</span><br><span class="line"> temp.InnerText = <span class="keyword">group</span>[<span class="string">"Name"</span>].Value;</span><br><span class="line"> node.AppendChild(temp);</span><br><span class="line"></span><br><span class="line"> XmlNode temp2 = xmldoc.CreateNode(XmlNodeType.Element, <span class="string">"Code"</span>, <span class="literal">null</span>);</span><br><span class="line"> temp2.InnerText = <span class="keyword">group</span>[<span class="string">"Code"</span>].Value;</span><br><span class="line"> node.AppendChild(temp2);</span><br><span class="line"></span><br><span class="line"> root.AppendChild(node);</span><br><span class="line"> }</span><br><span class="line"> xmldoc.Save(nowpath + <span class="string">"/Data/"</span> + <span class="string">"StationName.xml"</span>);</span><br><span class="line"> }</span><br><span class="line"> <span class="function"><span class="keyword">private</span> <span class="keyword">static</span> <span class="keyword">string</span> <span class="title">StationCode</span>(<span class="params"><span class="keyword">string</span> StationName</span>)</span></span><br><span class="line"><span class="function"></span> {</span><br><span class="line"> XmlDocument doc = <span class="keyword">new</span> XmlDocument();</span><br><span class="line"> doc.Load(Environment.CurrentDirectory + <span class="string">"/Data/StationName.xml"</span>);</span><br><span class="line"> XmlNodeList data = doc.DocumentElement.ChildNodes;</span><br><span class="line"> <span class="keyword">foreach</span> (XmlNode node <span class="keyword">in</span> data)</span><br><span class="line"> {</span><br><span class="line"> XmlElement xe = (XmlElement)node;</span><br><span class="line"> XmlNodeList xnl0 = xe.ChildNodes;</span><br><span class="line"> <span class="keyword">string</span> s = xnl0.Item(<span class="number">0</span>).InnerText;</span><br><span class="line"> <span class="keyword">if</span> (s == StationName)</span><br><span class="line"> {</span><br><span class="line"> <span class="keyword">return</span> xnl0.Item(<span class="number">1</span>).InnerText;</span><br><span class="line"> }</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">return</span> <span class="keyword">string</span>.Empty;</span><br><span class="line"> }</span><br><span class="line"></span><br><span class="line"></span><br><span class="line"> <span class="function"><span class="keyword">private</span> <span class="keyword">static</span> Ticket[] <span class="title">SpiderTicket</span>(<span class="params"><span class="keyword">string</span> date, <span class="keyword">string</span> <span class="keyword">from</span>, <span class="keyword">string</span> to, <span class="keyword">string</span> id</span>)</span></span><br><span class="line"><span class="function"></span> {</span><br><span class="line"> HttpWebRequest request;</span><br><span class="line"> HttpWebResponse response;</span><br><span class="line"></span><br><span class="line"> <span class="keyword">string</span> url = <span class="string">"https://kyfw.12306.cn/otn/leftTicket/query?leftTicketDTO.train_date={0}&leftTicketDTO.from_station={1}&leftTicketDTO.to_station={2}&purpose_codes={3}"</span>;</span><br><span class="line"> url = <span class="keyword">string</span>.Format(url, date, <span class="keyword">from</span>, to, id);</span><br><span class="line"></span><br><span class="line"> request = (HttpWebRequest)WebRequest.Create(url);</span><br><span class="line"> request.Method = <span class="string">"GET"</span>;</span><br><span class="line"> request.Credentials = CredentialCache.DefaultCredentials;</span><br><span class="line"> request.UserAgent = <span class="string">"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36"</span>;</span><br><span class="line"></span><br><span class="line"> <span class="keyword">string</span> str = <span class="keyword">string</span>.Empty;</span><br><span class="line"> <span class="keyword">try</span></span><br><span class="line"> {</span><br><span class="line"> response = (HttpWebResponse)request.GetResponse();</span><br><span class="line"> <span class="keyword">if</span> (response.StatusCode == HttpStatusCode.OK)</span><br><span class="line"> {</span><br><span class="line"> StreamReader sr = <span class="keyword">new</span> StreamReader(response.GetResponseStream(), Encoding.GetEncoding(<span class="string">"UTF-8"</span>));</span><br><span class="line"> str = sr.ReadToEnd();</span><br><span class="line"> sr.Close();</span><br><span class="line"> response.Close();<span class="comment">//关闭response响应流</span></span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">else</span></span><br><span class="line"> <span class="keyword">throw</span> <span class="keyword">new</span> Exception();</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">catch</span> (Exception e)</span><br><span class="line"> {</span><br><span class="line"> Console.WriteLine(e.Message);</span><br><span class="line"> }</span><br><span class="line"></span><br><span class="line"> Dictionary<<span class="keyword">string</span>, <span class="keyword">string</span>> map=<span class="keyword">new</span> Dictionary<<span class="keyword">string</span>, <span class="keyword">string</span>>();<span class="comment">//保存返回的JSON串中的车站代码与车站名之间的映</span></span><br><span class="line"> ArrayList AllTicket = <span class="keyword">new</span> ArrayList();<span class="comment">//所有的车票信息</span></span><br><span class="line"></span><br><span class="line"> JObject jo = (JObject)JsonConvert.DeserializeObject(str);</span><br><span class="line"> JToken record = jo[<span class="string">"data"</span>][<span class="string">"map"</span>];</span><br><span class="line"> <span class="keyword">foreach</span> (JProperty item <span class="keyword">in</span> record)</span><br><span class="line"> {</span><br><span class="line"> map.Add(item.Name.ToString(), item.Value.ToString());</span><br><span class="line"> }</span><br><span class="line"></span><br><span class="line"> record = jo[<span class="string">"data"</span>][<span class="string">"result"</span>];</span><br><span class="line"> <span class="keyword">foreach</span> (<span class="keyword">string</span> s <span class="keyword">in</span> record)</span><br><span class="line"> {</span><br><span class="line"> <span class="keyword">string</span>[] result = s.Split(<span class="string">'|'</span>);</span><br><span class="line"> Ticket t = <span class="keyword">new</span> Ticket();</span><br><span class="line"> t.TrainId = result[<span class="number">3</span>];</span><br><span class="line"> t.FromStation = map[result[<span class="number">6</span>]];</span><br><span class="line"> t.ToStation = map[result[<span class="number">7</span>]];</span><br><span class="line"> t.StartTime = result[<span class="number">8</span>];</span><br><span class="line"> t.ArriveTime = result[<span class="number">9</span>];</span><br><span class="line"> t.LastedTime = result[<span class="number">10</span>];</span><br><span class="line"> t.TicketDate = result[<span class="number">13</span>];</span><br><span class="line"> t.DwNum = result[<span class="number">33</span>] != <span class="string">""</span> ? result[<span class="number">33</span>] : t.DwNum;</span><br><span class="line"> t.TzNum = result[<span class="number">32</span>] != <span class="string">""</span> ? result[<span class="number">32</span>] : t.TzNum;</span><br><span class="line"> t.YdNum = result[<span class="number">31</span>] != <span class="string">""</span> ? result[<span class="number">31</span>] : t.YdNum;</span><br><span class="line"> t.EdNum = result[<span class="number">30</span>] != <span class="string">""</span> ? result[<span class="number">30</span>] : t.EdNum;</span><br><span class="line"> t.YzNum = result[<span class="number">29</span>] != <span class="string">""</span> ? result[<span class="number">29</span>] : t.YzNum;</span><br><span class="line"> t.YwNum = result[<span class="number">28</span>] != <span class="string">""</span> ? result[<span class="number">28</span>] : t.YwNum;</span><br><span class="line"> t.WzNum = result[<span class="number">26</span>] != <span class="string">""</span> ? result[<span class="number">26</span>] : t.WzNum;</span><br><span class="line"> t.RzNum = result[<span class="number">24</span>] != <span class="string">""</span> ? result[<span class="number">24</span>] : t.RzNum;</span><br><span class="line"> t.RwNum = result[<span class="number">23</span>] != <span class="string">""</span> ? result[<span class="number">23</span>] : t.RwNum;</span><br><span class="line"> t.GrwNum = result[<span class="number">21</span>] != <span class="string">""</span> ? result[<span class="number">21</span>] : t.GrwNum;</span><br><span class="line"> AllTicket.Add(t);</span><br><span class="line"> }</span><br><span class="line"> Ticket[] All = <span class="keyword">new</span> Ticket[AllTicket.Count];</span><br><span class="line"> <span class="keyword">int</span> flag = <span class="number">0</span>;</span><br><span class="line"> <span class="keyword">foreach</span> (<span class="keyword">object</span> t <span class="keyword">in</span> AllTicket)</span><br><span class="line"> {</span><br><span class="line"> All[flag++] = t <span class="keyword">as</span> Ticket;</span><br><span class="line"> }</span><br><span class="line"> <span class="keyword">return</span> All;</span><br><span class="line"> }</span><br><span class="line"> <span class="function"><span class="keyword">static</span> <span class="keyword">void</span> <span class="title">Main</span>(<span class="params"><span class="keyword">string</span>[] args</span>)</span></span><br><span class="line"><span class="function"></span> {</span><br><span class="line"> StationNameXml();</span><br><span class="line"> <span class="keyword">string</span> <span class="keyword">from</span> = <span class="string">"上海"</span>;</span><br><span class="line"> <span class="keyword">string</span> to = <span class="string">"北京"</span>;</span><br><span class="line"> Ticket[] All=<span class="keyword">new</span> Ticket[<span class="number">50</span>];</span><br><span class="line"> All=SpiderTicket(DateTime.Now.ToString(<span class="string">"yyyy-MM-dd"</span>), StationCode(<span class="keyword">from</span>), StationCode(to), <span class="string">"ADULT"</span>);</span><br><span class="line"> <span class="keyword">for</span>(<span class="keyword">int</span> i=<span class="number">0</span>;i<All.Length;i++)</span><br><span class="line"> {</span><br><span class="line"> Dictionary<<span class="keyword">string</span>, <span class="keyword">string</span>> map = <span class="keyword">new</span> Dictionary<<span class="keyword">string</span>, <span class="keyword">string</span>>();</span><br><span class="line"> map = All[i].getMap();</span><br><span class="line"> <span class="keyword">foreach</span> (<span class="keyword">object</span> j <span class="keyword">in</span> map.Keys)</span><br><span class="line"> Console.Write(j.ToString()+<span class="string">":"</span>+map[j.ToString()].ToString()+<span class="string">" "</span>);</span><br><span class="line"> Console.WriteLine();</span><br><span class="line"> }</span><br><span class="line"> Console.Read();</span><br><span class="line"> }</span><br><span class="line"> }</span><br><span class="line">}</span><br></pre></td></tr></table></figure><link rel="stylesheet" href="/css/spoiler.css" type="text/css"><script src="/js/spoiler.js" type="text/javascript" async></script>
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