0
，我用它来获得JSON从URL重定向到验证码，并提供了以下错误的URL：“数据org.json.JSONException：价值<!DOCTYPE of type java.lang.String cannot be converted to JSONObject“错误的数据进行解析：org.json.JSONException：值<java.lang.String类型的DOCTYPE不能被转换为JSONObject的
以下是活动和代码中有我试图从获得JSON而是我重定向到验证码的网址：
protected Void doInBackground(Void... params) {
// Create an array
arraylist = new ArrayList<HashMap<String, String>>();
// Retrieve JSON Objects from the given URL address
//URL
jsonobject = JSONfunctions
.getJSONfromURL("http://laboneinside.com/android/diag_conn.php");
try {
// Locate the array name in JSON
jsonarray = jsonobject.getJSONArray("result");
Log.i("JSON TAG", jsonobject.toString());
for (int i = 0; i < jsonarray.length(); i++) {
HashMap<String, String> map = new HashMap<String, String>();
jsonobject = jsonarray.getJSONObject(i);
// Retrive JSON Objects
map.put("nameDiag", jsonobject.getString("name"));
map.put("srcDiag", jsonobject.getString("src"));
map.put("linkDiag", jsonobject.getString("link"));
// Set the JSON Objects into the array
arraylist.add(map);
}
} catch (JSONException e) {
Log.e("Error", e.getMessage());
e.printStackTrace();
}
return null;
}
JSONFUNCTION：
public class JSONfunctions {
public static JSONObject getJSONfromURL(String url) {
InputStream is = null;
String result = "";
JSONObject jArray = null;
// Download JSON data from URL
try {
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(url);
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();
} catch (Exception e) {
Log.e("log_tag", "Error in http connection " + e.toString());
}
// Convert response to string
try {
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();
result = sb.toString();
Log.i("JSON Parser", result);
} catch (Exception e) {
Log.e("log_tag", "Error converting result " + e.toString());
}
try {
jArray = new JSONObject(result);
} catch (JSONException e) {
Log.e("log_tag", "Error parsing data " + e.toString());
}
return jArray;
}
}
以下是logcat的：
I/JSON Parser: <!DOCTYPE html>
<!--[if lt IE 7]> <html class="no-js ie6 oldie" lang="en-US"> <![endif]-->
<!--[if IE 7]> <html class="no-js ie7 oldie" lang="en-US"> <![endif]-->
<!--[if IE 8]> <html class="no-js ie8 oldie" lang="en-US"> <![endif]-->
<!--[if gt IE 8]><!--> <html class="no-js" lang="en-US"> <!--<![endif]-->
<head>
<title>Attention Required! | CloudFlare</title>
<meta charset="UTF-8" />
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1" />
<meta name="robots" content="noindex, nofollow" />
<meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1" />
<link rel="stylesheet" id="cf_styles-css" href="/cdn-cgi/styles/cf.errors.css" type="text/css" media="screen,projection" />
<!--[if lt IE 9]><link rel="stylesheet" id='cf_styles-ie-css' href="/cdn-cgi/styles/cf.errors.ie.css" type="text/css" media="screen,projection" /><![endif]-->
<style type="text/css">body{margin:0;padding:0}</style>
<!--[if lte IE 9]><script type="text/javascript" src="/cdn-cgi/scripts/jquery.min.js"></script><![endif]-->
<!--[if gte IE 10]><!--><script type="text/javascript" src="/cdn-cgi/scripts/zepto.min.js"></script><!--<![endif]-->
<script type="text/javascript" src="/cdn-cgi/scripts/cf.common.js"></script>
</head>
<body>
<div id="cf-wrapper">
<div class="cf-alert cf-alert-error cf-cookie-error" id="cookie-alert" data-translate="enable_cookies">Please enable cookies.</div>
<div id="cf-error-details" class="cf-error-details-wrapper">
<div class="cf-wrapper cf-header cf-error-overview">
<h1 data-translate="challenge_headline">One more step</h1>
<h2 class="cf-subheadline"><span data-translate="complete_sec_check">Please complete the security check to access</span> laboneinside.com</h2>
</div><!-- /.header -->
<div class="cf-section cf-highlight cf-captcha-container">
<div class="cf-wrapper">
<div class="cf-columns two">
<div class="cf-column">
<div class="cf-highlight-inverse cf-form-stacked">
<form class="challenge-form" id="challenge-form" action="/cdn-cgi/l/chk_captcha" method="get">
<script type="text/javascript" src="/cdn-cgi/scripts/cf.challenge.js" data-type="normal" data-ray="308cf17ac17329be" async data-sitekey="6LfOYgoTAAAAAInWDVTLSc8Yibqp-c9DaLimzNGM" data-stoken="kvvwvLSUth2MQ7fsfXFwr9TjwkJ6pEiMAfiAhb7x9fVk7yqCvGMh-myXoKQuhQt_4MjgZHunito0fikCnHS-DFoymBKWm5gb3lnlB4dceb0"></script>
<div class="g-recaptcha"></div>
<noscript id="cf-captcha-bookmark" class="cf-captcha-info">
<div><div style="width: 302px">
<div>
<iframe src="https://www.google.com/recaptcha/api/fallback?k=6LfOYgoTAAAAAInWDVTLSc8Yibqp-c9DaLimzNGM&stoken=kvvwvLSUth2MQ7fsfXFwr9TjwkJ6pEiMAfiAhb7x9fVk7yqCvGMh-myXoKQuhQt_4MjgZHunito0fikCnHS-DFoymBKWm5gb3lnlB4dceb0" frameborder="0" scrolling="no" style="width: 302px; height:422px; border-style: none;"></iframe>
</div>
<div style="width: 300px; border-style: none; bottom: 12px; left: 25px; margin: 0px; padding: 0px; right: 25px; background: #f9f9f9; border: 1px solid #c1c1c1; border-radius: 3px;">
<textarea id="g-recaptcha-response" name="g-recaptcha-response" class="g-recaptcha-response" style="width: 250px; height: 40px; border: 1px solid #c1c1c1; margin: 10px 25px; padding: 0px; resize: none;"></textarea>
<input type="submit" value="Submit"></input>
</div>
</div></div>
</noscript>
</form>
</div>
</div>
<div class="cf-column">
<div class="cf-screenshot-container">
<span class="cf-no-screenshot"></span>
</div>
</div>
</div><!-- /.columns -->
</div>
</div><!-- /.captcha-container -->
<div class="cf-section cf-wrapper">
<div class="cf-columns two">
<div class="cf-column">
<h2 data-translate="why_captcha_headline">Why do I have to complete a CAP
11-28 04:55:15.976 30265-30325/com.example.predator.labone E/log_tag: Error parsing data org.json.JSONException: Value <!DOCTYPE of type java.lang.String cannot be converted to JSONObject
如何阻止它重定向，这样我可以得到具有JSON数据的页面？
好像你正试图字符串转换成JSON对象，这就是为什么你得到这个error.Before转换的响应，JSON对象确保响应是JSON从。 – Vishwa
再看这个问题我已经编辑它@Vishwa –
你可以张贴此功能代码.. JSONfunctions .getJSONfromURL（） – Vishwa