读取jSON响应 [英] read jSON response

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本文介绍了读取jSON响应的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我正在尝试从我基于python的后台读取json响应。我正在使用此代码访问信息。



首次通话的网址 

  public static final String JSON_RESPONSE_STRING =http://192.168.2.5:8000/mobile/;

二次通话的网址 

  public static final String PICKUP_DETAILS =http://192.168.2.5:8000/mobile/shippments/;

使用的常用方法

  public static String GetJSONResponse（String stringUrl）throws IOException 
 {
 StringBuilder response = new StringBuilder（）; 
 
 URL url = new URL（stringUrl）; 
 HttpURLConnection httpconn =（HttpURLConnection）url.openConnection（）; 
 if（httpconn.getResponseCode（）== HttpURLConnection.HTTP_OK）
 {
 BufferedReader input = new BufferedReader（new InputStreamReader（httpconn.getInputStream（）），8192）; 
 String strLine = null; 
 while（（strLine = input.readLine（））！= null）
 {
 response.append（strLine）; 
} 
 input.close（）; 
} 
 
 return response.toString（）; 
}

django url模式 

  urlpatterns = patterns（'mobile_api.views'，
 url（r'^ $'，'login_authenticate'），
 url （r'^ shippments /（？P id = \w +）'，'pickup_details'），
 url（r'^ report / post /'，'pickup_report'）
）$ b $我在我的代码中使用了两次这个方法。这个代码第一次工作得很好，解析json响应。
 
 
 
当我在其他地方使用这种方法时，我称之为
  pick_up_id = getIntent（）。getStringExtra（pickup_id）; 
 String stringUrl = Constants.PICKUP_DETAILS +555; 
 String response = null; 
 try {
 response = PickupList.GetJSONResponse（stringUrl）; 
} catch（IOException e）{
 // TODO自动生成的catch块
 e.printStackTrace（）; 
} 
 
 // String response = GetPickUpDetails（pick_up_id）; 
 System.out.println（second call response+ response）; 
  
并获得此回复
  03-22 12：19：37.979：I / System.out（20703）：第二个呼叫响应<！doctype html> <！ -  [if IE 7]> < html class =no-js ie7 oldielang =en>百分比抑制率ENDIF]  -  GT！; <！ -  [if IE 8]> < html class =no-js ie8 oldielang =en>百分比抑制率ENDIF]  -  GT！; <！ -  [if gt IE 8]><！ - > < html class =no-jslang =en> <！ - <！[ENDIF]  -  GT; < HEAD> < meta charset =utf-8> <标题> ECOM< /标题> < meta http-equiv =X-UA-Compatiblecontent =IE = Edge; chrome = 1> < meta name =viewportcontent =width = device-width，initial-scale = 1.0，maximum-scale = 1.0> < meta name =descriptioncontent => < meta name =authorcontent => < meta name =apple-mobile-web-app-capablecontent =yes/> < meta name =apple-mobile-web-app-status-bar-stylecontent =black-semiconductor/> < meta property =og：imagecontent =http://www.domain.com/images/logo.png/> < meta property =og：titlecontent = -  description here  - /> < meta property =og：urlcontent =http://www.domain.com/> < link rel =快捷图标href =/ static / assets / img / favicon.ico/> < link rel =apple-touch-iconhref =/ static / assets / img / apple-touch-icon.png> < link rel =apple-touch-iconsizes =72x72href =/ static / assets / img / apple-touch-icon-72x72.png> < link rel =apple-touch-iconsizes =114x114href =/ static / assets / img / apple-touch-icon-114x114.png> < link rel =stylesheethref =/ static / assets / css / styles.css/> < script src =/ static / assets / js / libs / modernizr.custom.60077.js>< / script> < link rel =stylesheethref =/ static / assets / css / popup.css/> < script src =/ static / assets / js / jquery-1.7.2.min.js>< / script> < script src =/ static / assets / authentication / js / popup.js>< / script> < / head>< body>< div id =backgroundPopup>< / div> < div class =headerstyle =text-align：center; padding-top：10px;> < img src =/ static / assets / img / Ecomlogo.png/> < / DIV> < div class =container-fluidroll =mainid =main> < div class =span6>< a href =/ track_me / scan_open / 1 /class =forgotpass pull-right> Track Shipment< / a> < div class =login> < div class =title>登录< / div> < div class =content-login> < form action =。方法= POST > < div style ='display：none'>< input type ='hidden'name ='csrfmiddlewaretoken'value ='p0SPV6QzpX2nP2p588V5lDU9s9LLWZDO'/>< / div> < input type =textname =usernameplaceholder =Usernameclass =user-name/> < input type =Passwordname =passwordplaceholder =Password/> < input type =submitclass =button-login/> < a href =＃class =forgotpass pull-rightid =togotpass>忘记密码？< / a> < /形式> < / DIV> < / DIV> < / DIV> < div class =span6> < div class =login> < div class =title> Ecom Express新闻< / div> < div class =content-login> < / DIV> < / DIV> < / DIV> < / DIV> <！ - 模态 - > < div class =modal hide modal-add-revletid =add-revlet> < div class =modal-header> < a class =closedata-dismiss =modal>×< / a> < H3>记录和LT; / H3> < / DIV> < div class =modal-body> < / DIV> < / div><！ - 模态结束 - > < div id =popupContact> < a id =popupContactClose> x< / a> < / DIV> <！ -  uncomment pre-deloy  - > <！ - < script src =// ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js\"></script>--> < script> window.jQuery || document.write（'< script src =assets / js / libs / jquery-1.7.1.min.js>< \ / script>'）< / script> <！ - 引导 - > < script src =/ static / assets / js / bootstrap-transition.js>< / script> < script src =/ static / assets / js / bootstrap-alert.js>< / script> < script src =/ static / assets / js / bootstrap-modal.js>< / script> < script src =/ static / assets / js / bootstrap-dropdown.js>< / script> < script src =/ static / assets / js / bootstrap-scrollspy.js>< / script> < script src =/ static / assets / js / bootstrap-tab.js>< / script> < script src =/ static / assets / js / bootstrap-tooltip.js>< / script> < script src =/ static / assets / js / bootstrap-popover.js>< / script> < script src =/ static / assets / js / bootstrap-button.js>< / script> 
  
  PS 此外，如果代码有任何问题，为什么它工作的第一个电话。 
 注1 这两个响应都是我已经验证过的几个json对象.my后端是 dJango 。在浏览器上点击URL我得到.json格式的正确答案
解决方案
检查 csrf_exempt 或正确的访问权限的应用程序
 
的URL
I am trying to read a json response from my python based backend. I am using this code for accessing the information.



URL for first call
public static final String JSON_RESPONSE_STRING="http://192.168.2.5:8000/mobile/";

URL forsecond call
public static final String PICKUP_DETAILS="http://192.168.2.5:8000/mobile/shippments/";

common method using
public static String GetJSONResponse(String stringUrl) throws IOException
    {
        StringBuilder response  = new StringBuilder();

        URL url = new URL(stringUrl);
        HttpURLConnection httpconn = (HttpURLConnection)url.openConnection();
        if (httpconn.getResponseCode() == HttpURLConnection.HTTP_OK)
        {
            BufferedReader input = new BufferedReader(new InputStreamReader(httpconn.getInputStream()),8192);
            String strLine = null;
            while ((strLine = input.readLine()) != null)
            {
                response.append(strLine);
            }
            input.close();
        }

        return response.toString();
    }

django url patterns
urlpatterns = patterns('mobile_api.views',
                       url(r'^$','login_authenticate'),
                       url(r'^shippments/(?P<id>\w+)','pickup_details'),
                       url(r'^report/post/','pickup_report')
                       )

I am using this method twice in my code. For the first time this code is working absolutely fine and parsing the json response .



When I am using this method at other place I am call it
pick_up_id=getIntent().getStringExtra("pickup_id");
        String stringUrl=Constants.PICKUP_DETAILS+"555";
        String response = null;
        try {
            response = PickupList.GetJSONResponse(stringUrl);
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        //String response=GetPickUpDetails(pick_up_id);
        System.out.println("second call response"+response);

and getting this response
03-22 12:19:37.979: I/System.out(20703): second call response<!doctype html>  <!--[if IE 7]>    <html class="no-js ie7 oldie" lang="en"> <![endif]-->  <!--[if IE 8]>    <html class="no-js ie8 oldie" lang="en"> <![endif]-->  <!--[if gt IE 8]><!--> <html class="no-js" lang="en"> <!--<![endif]-->  <head>    <meta charset="utf-8">    <title>ECOM</title>            <meta http-equiv="X-UA-Compatible" content="IE=Edge;chrome=1" >    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0">            <meta name="description" content="">    <meta name="author" content="">        <meta name="apple-mobile-web-app-capable" content="yes" />        <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />            <meta property="og:image" content="http://www.domain.com/images/logo.png"/>    <meta property="og:title" content="-- description here --"/>    <meta property="og:url" content="http://www.domain.com"/>            <link rel="shortcut icon" href="/static/assets/img/favicon.ico" />    <link rel="apple-touch-icon" href="/static/assets/img/apple-touch-icon.png">    <link rel="apple-touch-icon" sizes="72x72" href="/static/assets/img/apple-touch-icon-72x72.png">    <link rel="apple-touch-icon" sizes="114x114" href="/static/assets/img/apple-touch-icon-114x114.png">             <link rel="stylesheet" href="/static/assets/css/styles.css" />                    <script src="/static/assets/js/libs/modernizr.custom.60077.js"></script>          <link rel="stylesheet" href="/static/assets/css/popup.css" />           <script src="/static/assets/js/jquery-1.7.2.min.js"></script>           <script src="/static/assets/authentication/js/popup.js"></script>    </head><body><div id="backgroundPopup"></div>      <div class="header" style="text-align:center; padding-top:10px;">       <img src="/static/assets/img/Ecomlogo.png"/>  </div>   <div class="container-fluid" roll="main" id="main">    <div class="span6"><a href="/track_me/scan_open/1/" class="forgotpass pull-right">Track Shipment</a>      <div class="login">        <div class="title">          Login                  </div>                <div class="content-login">          <form action="." method="POST">          <div style='display:none'><input type='hidden' name='csrfmiddlewaretoken' value='p0SPV6QzpX2nP2p588V5lDU9s9LLWZDO' /></div>              <input type= "text" name ="username" placeholder="Username" class="user-name"/>            <input type= "Password" name="password" placeholder="Password"/>            <input type="submit" class="button-login"/>            <a href="#" class="forgotpass pull-right" id="forgotpass">Forgot Your Password?</a>          </form>        </div>      </div>    </div>    <div class="span6">      <div class="login">        <div class="title">          Ecom Express News                  </div>        <div class="content-login">                  </div>      </div>    </div>  </div>       <!-- modal -->  <div class="modal hide modal-add-revlet" id="add-revlet">    <div class="modal-header">      <a class="close" data-dismiss="modal">×</a>      <h3>Record</h3>    </div>    <div class="modal-body">          </div>  </div><!--modal end-->   <div id="popupContact">             <a id="popupContactClose">x</a>    </div>        <!-- uncomment pre-deloy -->  <!--<script src="//ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>-->  <script>window.jQuery || document.write('<script src="assets/js/libs/jquery-1.7.1.min.js"><\/script>')</script>  <!-- bootstrap -->  <script src="/static/assets/js/bootstrap-transition.js"></script>  <script src="/static/assets/js/bootstrap-alert.js"></script>  <script src="/static/assets/js/bootstrap-modal.js"></script>  <script src="/static/assets/js/bootstrap-dropdown.js"></script>  <script src="/static/assets/js/bootstrap-scrollspy.js"></script>  <script src="/static/assets/js/bootstrap-tab.js"></script>  <script src="/static/assets/js/bootstrap-tooltip.js"></script>  <script src="/static/assets/js/bootstrap-popover.js"></script>  <script src="/static/assets/js/bootstrap-button.js"></script>

P.S Also, if there is any problem with the code then why is it working for first call.
NOTE 1 Both the response are json objects I have verified several times.my backend is dJango. On hitting the url on browser I am getting the correct response in .json format
 解决方案 
check for csrf_exempt or proper permission for access to the url from app


                        
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