4 ways Android sends data to Web server

2. /**
4. * Two ways to submit data to a Web server in Android four ways
6. */
8. Public class Submitdatabyhttpclientandordinaryway {
12. /**  
14. * Use GET request to submit data in normal way
16. * @param map to pass in the data, in the form of a map encapsulated
18. * @param path requires the address of the server servlet
20. * @return The parameters of the Boolean type returned
22. * @throws Exception
24. */
26. Public Boolean Submitdatabydoget (map<string, string> Map, String Path) throws Exception {
28. //Patchwork a request address
30. StringBuilder sb = new StringBuilder (path);
32. Sb.append ("?");
34. for (map.entry<string, string> entry:map.entrySet ()) {
36. Sb.append (Entry.getkey ()). Append ("="). Append (Entry.getvalue ());
38. Sb.append ("&");
40. }
42. Sb.deletecharat (Sb.length ()- 1);
44. String str = sb.tostring ();
46. System.out.println (str);
48. URL url = new URL (str);
50. HttpURLConnection httpconn = (httpurlconnection) url.openconnection ();
52. Httpconn.setrequestmethod ("GET");
54. Httpconn.setreadtimeout (5000);
56. if (httpconn.getresponsecode () = = HTTPURLCONNECTION.HTTP_OK) {
58. return true;
60. }
62. return false;
64. }
68. /**  
70. * Dopost request submission data in normal mode
72. * @param map to pass in the data, in the form of a map encapsulated
74. * @param path requires the address of the server servlet
76. * @return The parameters of the Boolean type returned
78. * @throws Exception
80. */
82. Public Boolean Submitdatabydopost (map<string, string> Map, String Path) throws Exception {
84. //Note that there is no parameter in the post address, so be careful not to add the following parameters when Newurl
86. URL url = new URL (path);
88. //Post method when the parameter and URL are submitted separately, the Parameter form is like this: name=y&age=6
90. StringBuilder sb = new StringBuilder ();
92. //Sb.append ("?");
94. for (map.entry<string, string> entry:map.entrySet ()) {
96. Sb.append (Entry.getkey ()). Append ("="). Append (Entry.getvalue ());
98. Sb.append ("&");
100. }
102. Sb.deletecharat (Sb.length ()- 1);
104. String str = sb.tostring ();
108. HttpURLConnection httpconn = (httpurlconnection) url.openconnection ();
110. Httpconn.setrequestmethod ("POST");
112. Httpconn.setreadtimeout (5000);
114. Httpconn.setdooutput (true);
116. Httpconn.setrequestproperty ("Content-type", "application/x-www-form-urlencoded");
118. Httpconn.setrequestproperty ("Content-length", String.valueof (Str.getbytes (). Length));
120. OutputStream OS = Httpconn.getoutputstream ();
122. Os.write (Str.getbytes ());
124. if (httpconn.getresponsecode () = = HTTPURLCONNECTION.HTTP_OK) {
126. return true;
128. }
130. return false;
132. }
136. /**  
138. * Send data to the server in HttpClient doget mode
140. * @param map to pass in the data, in the form of a map encapsulated
142. * @param path requires the address of the server servlet
144. * @return The parameters of the Boolean type returned
146. * @throws Exception
148. */
150. Public Boolean Submitdatabyhttpclientdoget (map<string, string> Map, String Path) throws Exception { /c4>
152. HttpClient HC = new defaulthttpclient ();
154. //Request Path
156. StringBuilder sb = new StringBuilder (path);
158. Sb.append ("?");
160. for (map.entry<string, string> entry:map.entrySet ()) {
162. Sb.append (Entry.getkey ()). Append ("="). Append (Entry.getvalue ());
164. Sb.append ("&");
166. }
168. Sb.deletecharat (Sb.length ()- 1);
170. String str = sb.tostring ();
172. System.out.println (str);
174. HttpGet request = new HttpGet (sb.tostring ());
178. HttpResponse response = Hc.execute (request);
180. if (Response.getstatusline (). Getstatuscode () = = HTTPURLCONNECTION.HTTP_OK) {
182. return true;
184. }
186. return false;
188. }
192. /**  
194. * Submit data to the server in HttpClient Dopost way
196. * @param map to pass in the data, in the form of a map encapsulated
198. * @param path requires the address of the server servlet
200. * @return The parameters of the Boolean type returned
202. * @throws Exception
204. */
206. Public Boolean Submintdatabyhttpclientdopost (map<string, string> Map, String Path) throws Exception {
208. ///1. Obtain a httpclient equivalent to the browser object, using the implementation class of this interface to create the object, Defaulthttpclient
210. HttpClient HC = new defaulthttpclient ();
212. ///Dopost request is set at the time of request, the key is the path
214. HttpPost request = new HttpPost (path);
216. //2. Set the request parameters for the request, which is the parameter that will be uploaded to the Web server
218. list<namevaluepair> parameters = new arraylist<namevaluepair> ();
220. for (map.entry<string, string> entry:map.entrySet ()) {
222. Namevaluepair namevaluepairs = new Basicnamevaluepair (Entry.getkey (), Entry.getvalue ());
224. Parameters.Add (Namevaluepairs);
226. }
228. //Request entity httpentity is also an interface, we use its implementation class urlencodedformentity to create objects, note that later a string type of argument is used to specify the encoding of the
230. httpentity entity = new urlencodedformentity (Parameters, "UTF-8");
232. Request.setentity (entity);
234. //3. Execution Request
236. HttpResponse response = Hc.execute (request);
238. //4. To determine the success of a request by a return code
240. if (Response.getstatusline (). Getstatuscode () = = HTTPURLCONNECTION.HTTP_OK) {
242. return true;
244. }
246. return false;
248. }
250. }

Original from http://luecsc.blog.51cto.com/2219432/1111923

4 ways Android sends data to Web server