HttpClient 错误：请尝试启用 cookie 或关闭隐私模式答案

【问题标题】：HttpClient Error: Please try enabling cookies or turning off Private ModeHttpClient 错误：请尝试启用 cookie 或关闭隐私模式
【发布时间】：2015-09-08 17:01:21
【问题描述】：

我尝试使用HttpClient(4.3)OAuth 登录 Instagram，但收到以下错误消息：

无法加载此页面。如果您在您的浏览器，或者您正在以隐私模式浏览，请尝试启用 cookie 或关闭隐私模式，然后重试您的操作。

我花了三天时间尝试了所有可以在post请求中设置cookie的方法，但我仍然没有解决这个问题！

谁能帮帮我？

我的操作步骤：

1. Get login page with HttpGet.
2. Parse Cookie from response.
3. Parse form action from response.
4. Parse form fields from response.
5. Set Cookie to HttpPost.
6. Set form fields to HttpPost.
7. Post the form.
8. Get the error message.

代码：

Init HttpClient:

    RequestConfig globalConfig = RequestConfig.custom().setCookieSpec(CookieSpecs.STANDARD).build();
    CookieStore cookieStore = new BasicCookieStore();
    HttpClientContext context = HttpClientContext.create();
    context.setCookieStore(cookieStore);
    CloseableHttpClient httpClient = HttpClients.custom().setDefaultRequestConfig(globalConfig).setDefaultCookieStore(cookieStore).build();

发送获取登录页面请求：

    HttpGet get = new HttpGet(url);
    get.setHeader(
            "User-Agent",
            "Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.57 Safari/537.36");

    HttpResponse response = httpClient.execute(get);

获取 Cookie：

private Map<String, String> getCookies(HttpResponse response) {
    Map<String, String> cookieMap = new HashMap<String, String>();
    Header[] headers = response.getAllHeaders();
    for (int i = 0; i < headers.length; i++) {
        if (headers[i].getName().equals("Set-Cookie")) {
            String cookie = headers[i].getValue();
            String[] pairs = cookie.split(";");
            for(String pair: pairs){
                String[] keyValue = pair.split("=");
                String cookieName = keyValue[0];
                String cookieValue = keyValue[1];
                cookieMap.put(cookieName, cookieValue);
            }
        }
    }
    return cookieMap;
}

获取表单字段：

// org.htmlparser.Parser
private static Map<String, String> getFormFields(NodeList list,
    String keyword) {

    Map<String, String> responeMap = new HashMap<String, String>();
    SimpleNodeIterator iterator = list.elements();
    while (iterator.hasMoreNodes()) {
        Node node = iterator.nextNode();
        NodeList childList = node.getChildren();
        if (null == childList) {
            if (node instanceof InputTag) {
                InputTag d = (InputTag) node;
                if (d.getAttribute("name") != null)
                    responeMap.put(d.getAttribute("name"),
                        d.getAttribute("value"));
            }
        } else {
            if(node instanceof FormTag){
                FormTag d = (FormTag)node;
                loginAction  = d.getAttribute("action");
            }
            responeMap.putAll(processNodeList(childList, keyword));
        }
    }

    return responeMap;
}

发帖形式：

    HttpPost post = new HttpPost(loginUrl);

    post.setHeader(
            "User-Agent",
            "Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.57 Safari/537.36");
    if (cookieMap.size() > 0) {
        post.setHeader("Cookie", buildCookies(cookieMap));
    }

    UrlEncodedFormEntity uef = new UrlEncodedFormEntity(pairs, "UTF-8");
    post.setEntity(uef);

    response = httpClient.execute(post);

获取错误信息

无法加载此页面。如果您在您的浏览器，或者您正在以隐私模式浏览，请尝试启用 cookie 或关闭隐私模式，然后重试您的操作。

【问题讨论】：

标签： java login oauth-2.0 httpclient instagram-api

【解决方案1】：

我也花了一些时间在这个任务上，我通过自己处理所有标题和烹饪解决了这个问题，因为 httpClient 无法正确完成。我的 POST 方法示例：

public String sendPostLoginRequest(){
    String htmlResponse = "";
    String loc = "";
    String url = "https://instagram.com"+action;
    System.out.println(url);
    httpPost = new HttpPost(url);
    httpPost.setHeader("Host", "instagram.com");
    httpPost.setHeader("User-Agent", "Mozilla/5.0 (Windows NT 5.1; rv:38.0) Gecko/20100101 Firefox/38.0");
    httpPost.setHeader("Accept",
            "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
    httpPost.setHeader("Accept-Language", "en-US,en;q=0.5");
    httpPost.setHeader("Cookie", cook);
    httpPost.setHeader("Connection", "keep-alive");
    httpPost.setHeader("Referer", "https://instagram.com/accounts/login/?force_classic_login=&next=/oauth/authorize/%3Fclient_id%HERE_SHOULD_BE_CLIENT_ID%26redirect_uri%3Dhttp%3A//localhost%26response_type%3Dcode");
    httpPost.setHeader("Content-Type", "application/x-www-form-urlencoded");
    List<NameValuePair> nvps = new ArrayList<NameValuePair>();
    nvps.add(new BasicNameValuePair(hidenName, hidenValue));
    nvps.add(new BasicNameValuePair("username", login));
    nvps.add(new BasicNameValuePair("password", password));
    try {
        httpPost.setEntity(new UrlEncodedFormEntity(nvps));
        CloseableHttpResponse response2 = httpclient.execute(httpPost);
        System.out.println(response2.getStatusLine());
        HttpEntity entity2 = response2.getEntity();
        Header headerLoc = response2.getFirstHeader("Location");


        BufferedReader bf = new BufferedReader(new InputStreamReader(entity2.getContent()));

        while (bf.ready()){
            String s = bf.readLine();
            htmlResponse = htmlResponse + s;
            System.out.println(s);
        }
        setCookies(response2.getFirstHeader("Set-Cookie") == null ? "" :
                response2.getFirstHeader("Set-Cookie").toString());
        loc = headerLoc.getValue();
        System.out.println(loc);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return loc;
}

我在每次请求后更改变量“cook”。 HttpClient 通常获取第一个 cookie，并且在对当前域的下一次请求后不会更改它。另外，HttpClientSo 不处理重定向，所以你应该为 e 写一个请求

【讨论】：