JSON将更适合Android应用。它比XML轻巧。
当您连接到服务器时。每个请求将通过webservice调用服务器。您可以在标头中以base64编码形式发送身份验证。因此，每个请求都将在服务器中进行解析，并且可以在提供响应之前对凭据进行解码和身份验证。
要识别设备，您可以发送设备IME编号。您可以有一个表来跟踪登录到服务器的设备。
对于使用json的客户端中的base64身份验证。我还没有完成xml。
public static JSonObject SendHttpPost(Context context, JSonObject jsonObjSend) { mPrefs = AppConfig.getPreferences(context); String username = mPrefs.getString("UserName",""); String password = mPrefs.getString("Password",""); String host = mPrefs.getString("URL",""); String port = mPrefs.getString("Port",""); String url = "http:\myapp.comcontrollergetuser" HttpResponse response = null ; JSonObject jsonObjRecv =null; try { String usercredential = Utility.getB64Auth(username, password); DefaultHttpClient httpclient = new DefaultHttpClient(); HttpPost httpPostRequest = new HttpPost(url); StringEntity se; se = new StringEntity(jsonObjSend.toString()); // Set HTTP parameters httpPostRequest.setEntity(se); httpPostRequest.setHeader("Authorization", usercredential); httpPostRequest.setHeader("Accept", "application/json"); httpPostRequest.setHeader("Content-type", "application/json"); long t = System.currentTimeMillis(); response = (HttpResponse) httpclient.execute(httpPostRequest); Log.i(TAG, "HTTPResponse received in [" + (System.currentTimeMillis()-t) + "ms]"); //Get hold of the response entity (-> the data): HttpEntity entity = response.getEntity(); if (entity != null) { // Read the content stream InputStream instream = entity.getContent(); Header contentEncoding = response.getFirstHeader("Content-Encoding"); if (contentEncoding != null && contentEncoding.getValue().equalsIgnoreCase("gzip")) { instream = new GZIPInputStream(instream); } // convert content stream to a String String resultString= convertStreamToString(instream); Log.v(null, "resultString "+resultString); instream.close(); // Transform the String into a JSonObject if(resultString!=null){ jsonObjRecv = new JSonObject(resultString); } // Raw DEBUG output of our received JSON object: Log.i(TAG,"<jsonobject>n"+jsonObjRecv.toString()+"n</jsonobject>"); return jsonObjRecv; } } catch(SocketException se){ se.printStackTrace(); }catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } catch (JSonException e) { e.printStackTrace(); } return null;}编辑 是，预设用户名和密码。使用偏好屏幕之类的屏幕进行设置。可以参考json.org来解析和创建json。是的，可以创建嵌套的json。
JSonObject body = new JSonObject();JSonObject note = new JSonObject(); JSonObject commit = new JSonObject(); note.put("value", test2); commit.put("create", note); body.put("note", note); body.put("commit", commit);
