Question

我试图通过php将远程服务器上的mysql数据库中的数据检索到android。这在localhost中运行时工作正常。但是当它在远程服务器中时，我从服务器接收HTML代码而不是JSON响应。我尝试在浏览器中粘贴url（http://ksos.0fees.us/pgm_list.php?day=1&hall=A），从而产生正确的JSON输出。 HTML响应如下所示。

<html><body>
<script type="text/javascript" src="/aes.js" ></script>
<script>function toNumbers(d)
 {var e=[];
  d.replace(/(..)/g,function(d){e.push(parseInt(d,16))});
  return e
 }
 function toHex()
  {for(var d=[],d=1==arguments.length&&arguments[0].constructor==Array?arguments[0]:arguments,e="",f=0;f<d.length;f++)
  e+=(16>d[f]?"0":"")+d[f].toString(16);
  return e.toLowerCase()
 }
 var a=toNumbers("f655ba9d09a112d4968c63579db590b4"),b=toNumbers("98344c2eee86c3994890592585b49f80"),c=toNumbers("5cb1c0309e553acda177d912f21ac485");
 document.cookie="__test="+toHex(slowAES.decrypt(c,2,a,b))+"; 
 expires=Thu, 31-Dec-37 23:55:55 GMT; 
 path=/";
 location.href="http://ksos.0fees.us/pgm_list.php?day=1&hall=A&ckattempt=1";
</script>
<noscript>This site requires Javascript to work, please enable Javascript in your browser or use a browser with Javascript support</noscript>
</body></html>

以下是我向服务器请求获取回复的请求

public String makeServiceCall(String url, int method, List<NameValuePair> params){
    try{
        DefaultHttpClient httpclient = new DefaultHttpClient();
        HttpEntity httpentity = null;
        HttpResponse httpresponse = null;

        if (method == POST) {
            HttpPost httppost = new HttpPost(url);
            httppost.setHeader("User-Agent", ua);
            httppost.setHeader("Accept", "application/json");
            if(params!=null){
                httppost.setEntity(new UrlEncodedFormEntity(params));
            }
            httpresponse = httpclient.execute(httppost);
        } else if(method == GET){
            if(params!=null){
                String paramString = URLEncodedUtils.format(params, "utf-8");
                url += "?" + paramString;
            }
            HttpGet httpget = new HttpGet(url);
//              HttpPost httppost = new HttpPost(url);
            httpget.setHeader("User-Agent", ua);
            httpget.setHeader("Accept", "application/json");
            httpresponse = httpclient.execute(httpget);
        }
        httpentity = httpresponse.getEntity();
        is = httpentity.getContent();
    }catch(UnsupportedEncodingException e){
        e.printStackTrace();
    }catch (ClientProtocolException e) {
         e.printStackTrace();
    }catch (IOException e) {
         e.printStackTrace();
    }
    try{
        BufferedReader reader = new BufferedReader(new InputStreamReader(is,"UTF-8"),8);
//          BufferedReader reader = new BufferedReader(new InputStreamReader(is,"iso-8859-1"),8);
        StringBuilder sb = new StringBuilder();
        String line = null;
        while ((line = reader.readLine())!= null) {
            sb.append(line+"\n");
        }
        is.close();
        response = sb.toString();
    }catch(Exception e){
        Log.e("Buffer Error", "Error : "+e.toString());
    }
    return response;
}

我尝试过设置而不是为用户代理设置setHeader。 php部分如下所示：

$q=mysql_query("SELECT ...........");
if(!empty($q)){
    while($row=mysql_fetch_assoc($q))
        $pgmlist[]=$row;
    $response["pgmlist"] = $pgmlist;
    echo json_encode($response);

}
else{
    $response["success"] = 0;
    $response["message"] = "No record found";
    echo json_encode($response);
}

Answer 1

Atlast找到了解决方案......

问题不在于android或php部分。这是服务器的问题。我使用的托管网站向客户端发送cookie，这些cookie在android内部没有处理，但是由浏览器自动处理。我习惯了另一个不涉及cookie的托管网站，并获得了所需的json输出。

Answer 2

我花了很长时间来理解并解决问题。

首先，我们需要了解0fess托管具有反僵尸技术，可阻止来自（无浏览器）客户端的呼叫。这种技术的主要思想是使用一个javascript脚本来检查请求是否来自普通的Web浏览器，然后脚本加密IP并设置一个带有密钥__test和加密IP值的cookie。

要解决此类问题，我们需要在我们的应用程序中运行webview并从我们的0fees站点请求任何页面。然后我们可以拦截响应并获取cookie。之后，我们可以在我们的http休息请求中使用此cookie作为请求标头。

这是一个示例代码

 WebView browser=new WebView(getContext());
    browser.getSettings().setJavaScriptEnabled(true); 
    browser.setWebViewClient(new WebViewClient() {
        @Override
        public void onPageFinished(WebView view, String url){
            final String cookies = CookieManager.getInstance().getCookie(url);
            Log.d("any", "All the cookies by me in a string:" + cookies);
            HttpPost httppost = new HttpPost("http://ksos.0fees.us/pgm_list.php");
            httppost.setHeader("Accept", "application/json");
            httppost.setHeader("Cookie", cookies);
            //continue your request paramters 
           }
       }
  );
browser.loadUrl("http://ksos.0fees.us/");

在android中获取HTML响应而不是JSON

2 个答案: