Question

我有一个登录表单，当前正在使用HTTP Post Request登录参数并登录网站。我不确定服务器类型，所以可能是问题。一旦获取登录凭据，它就会将输入流转换为字符串（所有html）并将其设置为textview。这是登录信息：

private void postLoginData() throws ClientProtocolException, IOException {
    // Create a new HttpClient and Post Header
    HttpClient httpclient = new DefaultHttpClient();
    HttpPost httppost = new HttpPost("loginurl"); // Changed for question.

    try {
        // Add your data
        List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
        nameValuePairs.add(new BasicNameValuePair("sid", "username"));
        nameValuePairs.add(new BasicNameValuePair("pin", "pass"));
        httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

        // Execute HTTP Post Request
        HttpResponse response = httpclient.execute(httppost);
        String finalres = inputStreamToString(response.getEntity().getContent()).toString();
        tvStatus.setText(finalres);

    } catch (ClientProtocolException e) {
        // TODO Auto-generated catch block
    } catch (IOException e) {
        // TODO Auto-generated catch block
    }
}

这是inputStreamToString（）

private StringBuilder inputStreamToString(InputStream is) throws IOException {
    String line = "";
    StringBuilder total = new StringBuilder();

    // Wrap a BufferedReader around the InputStream
    BufferedReader rd = new BufferedReader(new InputStreamReader(is));

    // Read response until the end
    while ((line = rd.readLine()) != null) { 
        total.append(line); 
    }

    // Return full string
    return total;
}

问题是它总是只返回登录页面的HTML。当用户在网站上登录失败时，它会显示一条消息来指示。即使我添加了不正确的凭据，它也不会显示任何不同的内容。同样，如果我添加正确的登录名，它仍然只显示登录页面HTML。

Answer 1

检查HTTP状态。做这样的事情

if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
   //Do Something here.. I'm logged in.
} else if (response.getStatusLine().getStatusCode() == HttpStatus.SC_UNAUTHORIZED) {
    // Do Something here. Access Denied.
} else {
    // IF BOTH CASES not found e.g (unknown host and etc.)
}

这将完全按照您要检查状态的方式运行。感谢

Answer 2

我猜问题与this question类似。看看它，有一些解决方案，可能对你解决它。

Android登录网站 - 始终返回登录页面数据

2 个答案: