java模拟12306查询余票

抓取12306官网余票信息

一、前言：

为了学习cookies的应用，之前听过有人写代码，玩转12306，今天自己也尝

试一下，学以致用哈，用12306的数据玩玩。只是抓取余票，功能不完善。

*注意：12306接口信息老是变化，所以，现在写的指不定哪天就不好使了。

 还有，我是直接把查询接口放在代码里面了，（https://kyfw.12306.cn/otn/leftTicket/queryX?leftTicketDTO.train_date=2017-09-  24&leftTicketDTO.from_station=MDB&leftTicketDTO.to_station=HBB&purpose_co  des=ADULT）。返回来的json数据解析后有的不知道是干嘛的，所以我只把有用的  列举出来。

二、代码：

ParseJson.java:

package data;import java.util.ArrayList;import java.util.List;import java.util.regex.Matcher;import java.util.regex.Pattern;import net.sf.json.JSONArray;import net.sf.json.JSONObject;public class ParseJson {public static void main(String args[]) {start();}public static void start() {List<String> lists = new ArrayList<String>();String jsonCont = Get_12306_html.getContent();JSONObject jb = JSONObject.fromObject(jsonCont);Pattern p = Pattern.compile("(^[^\\|]).*"); // [a-zA-Z|\\d|\\%].*JSONObject data = jb.getJSONObject("data");JSONArray ja = data.getJSONArray("result");for (Object object : ja) {Matcher m = p.matcher(object.toString());if (m.find()) {lists.add(m.group(0));}}System.out.println("<<<<____________>>>>>>----------------------------------------");System.out.println("车次信息\t出发地\t目的地\t出发时间\t到达时间\t历时\tY\t高级软卧\t软卧\t无座\t硬卧\t硬座\t二等座\t一等座\t商务，特等座");for (int i = 0; i < lists.size(); i++) {String temp = lists.get(i);Pattern tp = Pattern.compile("\\|?[^\\|]*"); // \|?[^\|]*// [^.|\|]?[^\|]*Matcher m = tp.matcher(temp);List<String> info = new ArrayList<String>();while (m.find()) {info.add(m.group());}System.out.println(info.get(3) + "\t" + info.get(6) + "\t"+ info.get(7) + "\t" + info.get(8) + "\t" + info.get(9)+ "\t" + info.get(10) + "\t" + info.get(11) + "\t"+ info.get(21) + "\t" + info.get(23) + "\t" + info.get(26)+ "\t" + info.get(28) + "\t" + info.get(29) + "\t"+ info.get(30) + "\t" + info.get(31) + "\t" + info.get(32)+"\n");/*info.get(3);// 车次信息info.get(6); // 出发地info.get(7);// 目的地info.get(8); // 出发时间info.get(9); // 到达时间info.get(10);// 历时info.get(11); // Yinfo.get(21); // 高级软卧info.get(23); // 软卧info.get(26); // 无座info.get(28); // 硬卧info.get(29); // 硬座info.get(30); // 二等座info.get(31);// 一等座info.get(32); // 商务，特等座*/}}}

Get_cookies.java:

package data;import java.io.IOException;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.URL;import java.util.List;import java.util.Map;import java.util.Set;public class Get_cookies {public static String getc() {String cookies = null;try {URL url = new URL("http://dynamic.12306.cn/otn/board/init");HttpURLConnection con = (HttpURLConnection) url.openConnection();con.setDoInput(true);con.setInstanceFollowRedirects(true);con.setRequestMethod("GET");con.setRequestProperty("Connection", "keep-alive");con.setRequestProperty("User-Agent","Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.110 Safari/537.36");Map<String, List<String>> m = con.getHeaderFields();Set<String> s = m.keySet();StringBuffer sb = new StringBuffer();if (s.contains("Set-Cookie")) {List<String> ls = m.get("Set-Cookie");for (int i = 0; i < ls.size(); i++) {String ss = ls.get(i).substring(0,ls.get(i).indexOf(";") + 1);sb.append(ss);}}String tt = sb.toString();if (tt != null) {cookies = tt.substring(0, tt.length() - 1);} else {cookies = null;System.out.println("cookies is null:");}} catch (MalformedURLException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return cookies;}}

Get_12306_html.java:

package data;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.net.MalformedURLException;import java.net.URL;import javax.net.ssl.HostnameVerifier;import javax.net.ssl.HttpsURLConnection;import javax.net.ssl.SSLSession;public class Get_12306_html {public static String  getContent(){String content = null;try {trustAllHttpsCertificates();  HostnameVerifier hv = new HostnameVerifier() {  public boolean verify(String urlHostName, SSLSession session) {  System.out.println("Warning: URL Host: " + urlHostName + " vs. "  + session.getPeerHost());  return true;  }};String cookiess=Get_cookies.getc();HttpsURLConnection.setDefaultHostnameVerifier(hv);  StringBuffer sb=new StringBuffer();URL url=new URL("https://kyfw.12306.cn/otn/leftTicket/queryX?leftTicketDTO.train_date=2017-09-24&leftTicketDTO.from_station=MDB&leftTicketDTO.to_station=HBB&purpose_codes=ADULT");HttpsURLConnection con=(HttpsURLConnection) url.openConnection();con.setDoInput(true);con.setInstanceFollowRedirects(true);con.setRequestMethod("GET");con.setRequestProperty("Connection", "keep-alive");con.setRequestProperty("Referer", "https://kyfw.12306.cn/otn/leftTicket/init");con.setRequestProperty("Cookie", cookiess);con.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.110 Safari/537.36");con.setRequestProperty("X-Requested-With", "XMLHttpRequest");if(con.getResponseCode()==200){InputStream inp=con.getInputStream();InputStreamReader inps=new InputStreamReader(inp,"UTF-8");BufferedReader br=new BufferedReader(inps);String str=null;while((str=br.readLine())!=null){sb.append(str);}content=sb.toString();}else{System.out.println(con.getResponseCode());content=getContent();}} catch (MalformedURLException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();} catch (Exception e) {e.printStackTrace();}return content;}          private static void trustAllHttpsCertificates() throws Exception {          javax.net.ssl.TrustManager[] trustAllCerts = new javax.net.ssl.TrustManager[1];          javax.net.ssl.TrustManager tm = new miTM();          trustAllCerts[0] = tm;          javax.net.ssl.SSLContext sc = javax.net.ssl.SSLContext                  .getInstance("SSL");          sc.init(null, trustAllCerts, null);          javax.net.ssl.HttpsURLConnection.setDefaultSSLSocketFactory(sc                  .getSocketFactory());      }        static class miTM implements javax.net.ssl.TrustManager,              javax.net.ssl.X509TrustManager {          public java.security.cert.X509Certificate[] getAcceptedIssuers() {              return null;          }            public boolean isServerTrusted(                  java.security.cert.X509Certificate[] certs) {              return true;          }            public boolean isClientTrusted(                  java.security.cert.X509Certificate[] certs) {              return true;          }            public void checkServerTrusted(                  java.security.cert.X509Certificate[] certs, String authType)                  throws java.security.cert.CertificateException {              return;          }            public void checkClientTrusted(                  java.security.cert.X509Certificate[] certs, String authType)                  throws java.security.cert.CertificateException {              return;          }      }  }

三、截图：

官网信息：

Java模拟结果：

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