Http发送Json

 1     public static JSONObject post(String url,JSONObject json){
 2             HttpClient client = new DefaultHttpClient();
 3             HttpPost post = new HttpPost(url);
 4             JSONObject response = null;
 5             try {
 6                 StringEntity s = new StringEntity(json.toString());
 7                 s.setContentEncoding("UTF-8");
 8                 s.setContentType("application/json");
 9                 post.setEntity(s);
10
11                 HttpResponse res = client.execute(post);
12                 if(res.getStatusLine().getStatusCode() == HttpStatus.OK.value()){
13                     HttpEntity entity = res.getEntity();
14                     String charset = EntityUtils.getContentCharSet(entity);
15                     response = new JSONObject(new JSONTokener(new InputStreamReader(entity.getContent(),charset)));
16                 }
17             } catch (Exception e) {
18                 throw new RuntimeException(e);
19             }
20             return response;
21         }  

http://201202104504.iteye.com/blog/1413714