Jsoup Demo Landing Example

Jsoup Simulation Landing Small example, different sites, need different simulation strategy, scattered fairy here just as a guide to learn.

Java code

2. Package com.jsouplogin;
6. Import Java.util.HashMap;
8. Import java.util.List;
10. Import Java.util.Map;
14. Import org.jsoup.Connection;
16. Import Org.jsoup.Jsoup;
18. Import Org.jsoup.Connection.Method;
20. Import Org.jsoup.Connection.Response;
22. Import org.jsoup.nodes.Document;
24. Import org.jsoup.nodes.Element;
28. /**
30. * Use Jsoup to simulate login Iteye
32. *
34. *
36. * General ideas are as follows:
38. *
40. * First request landing page, get page information, contain form information, and cookie (this is very important), can not get, will simulate landing not on
42. *
44. *
46. * Second login, set user name, password, the first cooking, put in, you can
48. *
50. * How to determine whether the landing is successful?
52. *
54. * After landing, print the page, you will see welcome xxx, you can prove
56. *
58. *
60. * @date June 27, 2014
62. * @author Qindongliang
64. *
66. *
68. * **/
70. Public class Jsouploginiteye {
74. public static void Main (string[] args)throws Exception {
78. Jsouploginiteye jli=New Jsouploginiteye ();
80. Jli.login ("xxxxx", "xxxxx"); Enter the Iteye username, and password
84. }
86. /** 
88. * Analog Login Iteye
90. *
92. * @param userName User Name
94. * @param pwd Password
96. *
98. * **/
100. public void Login (String username,string pwd)throws exception{
104. //First time request
106. Connection con=jsoup.connect ("Http://www.iteye.com/login");//Get Connection
108. Con.header ("user-agent", "mozilla/5.0" (Windows NT 6.1; WOW64; rv:29.0) gecko/20100101 firefox/29.0 "); //Configure simulation browser
110. Response rs= Con.execute (); //Get response
112. Document D1=jsoup.parse (Rs.body ()); //Convert to DOM tree
114. List<element> et= d1.select ("#login_form"); Get Form form, you can see the source code of the page to know
118. //Get, cooking and form properties, the following map holds the data at Post
120. Map<string, string> datas=new hashmap<> ();
122. For (Element E:et.get (0). Getallelements ()) {
124. if (e.attr ("name"). Equals ("name")) {
126. E.attr ("value", userName); Set User name
128. }
132. if (e.attr ("name"). Equals ("password")) {
134. E.attr ("value", pwd); //Set User password
136. }
140. if (e.attr ("name"). Length () >0) {//Exclude Null value form Properties
142. Datas.put (e.attr ("name"), E.attr ("value"));
144. }
146. }
152. /** 
154. * Second request, post form data, and cookie information
156. *
158. * **/
160. Connection con2=jsoup.connect ("Http://www.iteye.com/login");
162. Con2.header ("user-agent", "mozilla/5.0" (Windows NT 6.1; WOW64;  rv:29.0) gecko/20100101 firefox/29.0 ");
164. //Set cookies and the map data above the post
166. Response Login=con2.ignorecontenttype (True). Method (Method.post). Data (datas). Cookies (Rs.cookies ()). Execute ()  ;
168. //print, information after successful login
170. System.out.println (Login.body ());
174. //After the successful login cookie information, can be saved to the local, after landing, only one time to login can
176. Map<string, string> map=login.cookies ();
178. For (String s:map.keyset ()) {
180. System.out.println (s+"" +map.get (s));
182. }
186. }
200. }

Jsoup Demo Landing Example