在WelcomeActivity中完成恢复用户功能resumeUser()

//要用到网络 ，所以开一个线程
    private void resumeUser() {
        ToastUtils.ToastShort(this, "resume user");
        new Thread(){
            @Override
            public void run() {        
                User mUser = new User();
                mUser.setDeviceid(DeviceUtils.getDeviceId(WelcomeActivity.this));
                User resumeUser =  mUser.resumeUser();
                if (resumeUser!=null){
                    WelcomeActivity.this.startActivity(new 
                            Intent(WelcomeActivity.this, MainActivity.class));
                    WelcomeActivity.this.finish();
                }
            }    
        };
    }    

/**
     * resume user 用的是查询deviceid 
     * @return User 
     */
    public User resumeUser() {
        HttpUtils http = new HttpUtils();
        User mUser = null;
        MapparamMap= new HashMap();
        paramMap.put("deviceid",getDeviceid() );
        try{
            String response = http.getExecute(paramMap, HttpGetUrl.getUser());
            Log.i("User resumeUser() response",response);
            mUser = new Gson().fromJson(response, User.class);
            return mUser;
        } catch (IOException e) {
            e.printStackTrace();
        }catch(Exception e2){
            e2.printStackTrace();
        }
        return null;
    }

/**
     * 不是static,不能直接引用,
     * @ paramMap, url
     * @throws IOException 
     * @throws ClientProtocolException 
     */
    public  String getExecute(MapparamMap, String url) 
            throws ClientProtocolException, IOException{
        Log.i("getExecute" , "in");
        List params = new LinkedList();
        
        for (Map.Entry param: paramMap.entrySet()){
            String key = param.getKey();
            params.add(new BasicNameValuePair(key,  param.getValue()));
        }
        //对对数编码 
        String param = URLEncodedUtils.format(params, "UTF-8");
        HttpGet httpGet = new HttpGet(url+"?"+param);
        HttpResponse response =  client.execute(httpGet);
        return EntityUtils.toString(response.getEntity(),"utf-8");
        
    }