How does Android use HttpClient to submit data in Post mode and add http header information?

For details about how to post data in json format, add an http header, and accept the returned data, see the following code:

View plaincopy to clipboardprint? Private void HttpPostData (){
Try {
HttpClient httpclient = new DefaultHttpClient ();
String uri = "http://www.yourweb.com ";
HttpPost httppost = new HttpPost (uri );
// Add http header information
Httppost. addHeader ("Authorization", "your token"); // authenticate token
Httppost. addHeader ("Content-Type", "application/json ");
Httppost. addHeader ("User-Agent", "imgfornote ");
// Json data format of http post: {"name": "your name", "parentId": "id_of_parent "}
JSONObject obj = new JSONObject ();
Obj. put ("name", "your name ");
Obj. put ("parentId", "your parentid ");
Httppost. setEntity (new StringEntity (obj. toString ()));
HttpResponse response;
Response = httpclient.exe cute (httppost );
// Check the status code. If the data is successfully received
Int code = response. getStatusLine (). getStatusCode ();
If (code = 200 ){
String rev = EntityUtils. toString (response. getEntity (); // return json format: {"id": "27JpL ~ J4vsL0LX00E00005 "," version ":" abc "}
Obj = new JSONObject (rev );
String id = obj. getString ("id ");
String version = obj. getString ("version ");
}
} Catch (ClientProtocolException e ){
} Catch (IOException e ){
} Catch (Exception e ){
}
}
Private void HttpPostData (){
Try {
HttpClient httpclient = new DefaultHttpClient ();
String uri = "http://www.yourweb.com ";
HttpPost httppost = new HttpPost (uri );
// Add http header information
Httppost. addHeader ("Authorization", "your token"); // authenticate token
Httppost. addHeader ("Content-Type", "application/json ");
Httppost. addHeader ("User-Agent", "imgfornote ");
// Json data format of http post: {"name": "your name", "parentId": "id_of_parent "}
JSONObject obj = new JSONObject ();
Obj. put ("name", "your name ");
Obj. put ("parentId", "your parentid ");
Httppost. setEntity (new StringEntity (obj. toString ()));
HttpResponse response;
Response = httpclient.exe cute (httppost );
// Check the status code. If the data is successfully received
Int code = response. getStatusLine (). getStatusCode ();
If (code = 200 ){
String rev = EntityUtils. toString (response. getEntity (); // return json format: {"id": "27JpL ~ J4vsL0LX00E00005 "," version ":" abc "}
Obj = new JSONObject (rev );
String id = obj. getString ("id ");
String version = obj. getString ("version ");
}
} Catch (ClientProtocolException e ){
} Catch (IOException e ){
} Catch (Exception e ){
}
} Main classes used: org. apache. http. client. HttpClient, org. apache. http. client. methods. HttpPost and org. json. JSONObject

 

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