我正在尝试从基于 python 的后端读取 json 响应。我正在使用此代码来访问信息。
第一次通话的网址
public static final String JSON_RESPONSE_STRING="http://192.168.2.5:8000/mobile/";
第二次通话的网址
public static final String PICKUP_DETAILS="http://192.168.2.5:8000/mobile/shippments/";
常用方法使用
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')
)
我在我的代码中使用了这种方法两次。这段代码第一次可以正常工作并解析 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 Auto-generated catch block
e.printStackTrace();
}
//String response=GetPickUpDetails(pick_up_id);
System.out.println("second call response"+response);
并得到这个回应
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>
PS另外，如果代码有任何问题，那么为什么它在第一次调用时有效。 注意 1两个响应都是我已经验证过多次的 json 对象。我的后端是dJango。在浏览器上点击 url 时，我得到了 .json 格式的正确响应