Android已经过时的方法Httpclient

   private String result;

        @Override
        protected String doInBackground(String... strings) {
            HttpClient httpClient = new DefaultHttpClient();
            HttpGet httpGet = new HttpGet(strings[0]);
            try {
                HttpResponse execute = httpClient.execute(httpGet);
                if(execute.getStatusLine().getStatusCode() == 200){
                    //entity里封装的返回数据;
                    HttpEntity entity = execute.getEntity();
                    result = EntityUtils.toString(entity);
                }
            } catch (Exception e) {
                e.printStackTrace();
                Log.d("TAG",e.toString());
            }
            return result;

        }

  需要加入权限:加到Gradle Scripts里面找到要填加的类:useLibrary 'org.apache.http.legacy'