Android - 远程登录成功但不保留登录状态

Question

我有一个 Android 应用程序可以从远程服务器检索数据，包括身份验证。远程服务器正在使用 Yii。我们的 iPhone 版本使用的是远程网络服务，完全没有问题。但是对于我们的Android:1)我们可以登录，服务器返回200； 2) 但是下一页当我们尝试调用另一个 api 来查询数据库时，它一直返回用户未登录的错误。

我做了什么:1.查看后台的用户session。是的，从 android 登录后，用户 session 显示为 Activity 状态。2. 使用与 Firefox 的 POSTER 相同的 API 调用。是的，它可以检索数据。

可能出了什么问题？有人可以帮忙吗？非常感谢!

这是我的登录密码:

package ...
import ...

public class Login extends Activity implements OnClickListener {

    EditText etUser, etPass;
    Button bLogin, btnCancel;

    //Create string variables that will have the input assigned to them
    String username, password;

    //Create a HTTPClient as the form container
    HttpClient httpclient;

    //Use HTTP POST method
    HttpPost httppost;

    //Create an array list for the input data to be sent
    ArrayList<NameValuePair> nameValuePairs;

    //Create a HTTP Response and HTTP Entity
    HttpResponse response;
    org.apache.http.HttpEntity entity;
//    protected static final String TAG = MainActivity.class.getSimpleName();
    final String url = "..remote api...";
 // JSON Node names
     private static final String TAG_CONTACTS = "users";
     // contacts JSONArray
     JSONArray contacts = null;

    @Override
    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.login);

        initialise();

    }



    private void initialise() {
        etUser = (EditText) findViewById(R.id.txtUname);
        etPass = (EditText) findViewById(R.id.txtPwd);
        bLogin = (Button) findViewById(R.id.sumit_login);
        btnCancel = (Button) findViewById(R.id.btn_Cancel);
        //Now to set an onClickListener

        bLogin.setOnClickListener(this);

        btnCancel.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View arg0) {
                Intent intent = new Intent(getApplicationContext(), MainActivity.class);
                startActivity(intent);  
            }
        });
    }

    public void onClick(View v)  {
        // This is where we will be working now
        if (etUser.getText().toString().length() == 0
                || etPass.getText().toString().length() == 0) {
            Toast.makeText(getApplicationContext(),
                    "Please enter username and password",
                    Toast.LENGTH_SHORT).show();
        } else {
            new MyAsyncTask().execute();
        }

    }//END onClick()

    private static String convertStreamToString(InputStream is) {
        BufferedReader reader = new BufferedReader(new InputStreamReader(is));
        StringBuilder sb = new StringBuilder();

        String line = null;
        try {
            while ((line = reader.readLine()) != null) {
                sb.append(line + "\n");
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                is.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return sb.toString();
    }//END convertStreamToString()



    private class MyAsyncTask extends AsyncTask<Void, Void, Integer>
    {
        ProgressDialog mProgressDialog;


        @Override
        protected void onPreExecute() {
            super.onPreExecute();
            mProgressDialog = new ProgressDialog(Login.this);
            mProgressDialog.setMessage("Authenticating...");
            mProgressDialog.setIndeterminate(false);
            mProgressDialog.setCancelable(false);
            mProgressDialog.show();
        }

        @Override
        protected Integer doInBackground(Void... params) {

            int repsonStatus = 0;
            //Create new default HTTPClient
            httpclient = new DefaultHttpClient();

            //Create new HTTP POST with URL to php file as parameter
            httppost = new HttpPost("... login api ..."); 

            //Assign input text to strings
            username = etUser.getText().toString();
            password = etPass.getText().toString();

            JSONParser jParser = new JSONParser();
            //Next block of code needs to be surrounded by try/catch block for it to work
            try {
                //Create new Array List
//                nameValuePairs = new ArrayList<NameValuePair>(2);
                List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
                //place them in an array list
                nameValuePairs.add(new BasicNameValuePair("login", "login"));
                nameValuePairs.add(new BasicNameValuePair("username", username));
                nameValuePairs.add(new BasicNameValuePair("password", password));
                nameValuePairs.add(new BasicNameValuePair("api_key", "service_api"));


                //Add array list to http post
                httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

                //assign executed form container to response
                response = httpclient.execute(httppost); //response from the PHP file

                Log.i("AirconServer -- header login", response.getAllHeaders().toString());
                Log.i("postData", response.getStatusLine().toString());
                HttpEntity entity_ = response.getEntity();

                repsonStatus = response.getStatusLine().getStatusCode();
                if(response.getStatusLine().getStatusCode() == 200){
                    Log.i("AirconService - ", "LOGIN SUCCESSFUL!");


                    }
                } else {
                    Toast.makeText(getApplicationContext(),
                            "Invalid Username or password.",
                            Toast.LENGTH_SHORT).show();
                }


            } catch(Exception e){

                e.printStackTrace();
            }

            return repsonStatus;
        }
        @Override

        protected void onPostExecute(Integer result) {
            mProgressDialog.dismiss();
            if(result == 200) {
                Intent intent = new Intent(getApplicationContext(), MainMenuActivity.class);
                startActivity(intent);
            } else {
                Toast.makeText(getApplicationContext(),
                        "Invalid Username or password.",
                        Toast.LENGTH_SHORT).show();
            }         
        }
    }

}

这是另一个调用的代码，它在用户已经登录的情况下仍然要求登录。

public class GetMybookings extends ListActivity {

    int TIMEOUT_MILLISEC = 10000;
    ArrayList<jobs> bookings = new ArrayList<jobs>();

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }
    @Override
    public void onStart() {
        super.onStart();

        final Calendar c = Calendar.getInstance();
        int mYear = c.get(Calendar.YEAR);
        final String url = "... api ...";
        new MybookingTask().execute(url);
    }

    @Override
    protected void onListItemClick(android.widget.ListView l, android.view.View v, int position, long id) {
        if (this.bookings == null) {
            return;
        }
        startActivity(new Intent(Intent.ACTION_VIEW));
    }
    private void refreshResults(ArrayList<jobs> books) {

        setListAdapter(new Mybookings(this,books));
    }

    private class MybookingTask extends AsyncTask<String, Void, ArrayList<jobs>> {

            ProgressDialog mProgressDialog;


                    @Override
        protected void onPreExecute() {
                        super.onPreExecute();
                        mProgressDialog = new ProgressDialog(GetMybookings.this);
                        mProgressDialog.setMessage("Loading Bookings...");
                        mProgressDialog.setIndeterminate(false);
                        mProgressDialog.setCancelable(false);
                        mProgressDialog.show();
        }
        protected ArrayList<jobs> doInBackground(String... urls) {
            try {
                HttpParams httpParams = new BasicHttpParams();
                HttpConnectionParams.setConnectionTimeout(httpParams, TIMEOUT_MILLISEC);
                HttpConnectionParams.setSoTimeout(httpParams, TIMEOUT_MILLISEC);

                HttpClient httpClient = new DefaultHttpClient();
                HttpGet httpGet = new HttpGet(urls[0]);
                HttpResponse response = null;

                try {

                    ResponseHandler<String> responseHandler = new BasicResponseHandler();
                    String responseBody = httpClient.execute(httpGet, responseHandler);

                    response = httpClient.execute(httpGet);
                    Log.i("AirconService GetMyBookings -- header login", response.getAllHeaders().toString());
                    Log.i("postData", response.getStatusLine().toString());
                    Log.i("AirconService GetMyBookings -- response data", response.getEntity().toString());
                    Log.i("AirconService GetMyBookings-- response data", response.toString());

                    HttpEntity entity = response.getEntity();
                    String responseString = new String();
                    if(entity != null) {
                        responseString = EntityUtils.toString(entity);
                        Log.i("WHAT???", "??? responseString is: " + responseString);
                    }



                } catch(ClientProtocolException e) {
                    e.printStackTrace();


            } catch(Throwable t) {
                t.printStackTrace();
            }

            return null;
        }
        protected void onPostExecute(ArrayList<jobs> result) {
            mProgressDialog.dismiss();
            refreshResults(result);
        }
    }
}

已更新

我试过 Anand 的解决方案:它有效!!!

通用.java:

import ...

public class Common {
    public static CookieStore cookieStore = new BasicCookieStore();
}

登录码:

public class Login extends Activity implements OnClickListener {

static HttpContext localContext = new BasicHttpContext();

...

   protected Integer doInBackground(Void... params) {
        localContext.setAttribute(ClientContext.COOKIE_STORE, Common.cookieStore);
        //Create new default HTTPClient
        httpclient = new DefaultHttpClient();

        //Create new HTTP POST with URL to php file as parameter
        httppost = new HttpPost(... api ...); 

登录后的第二次调用(在单独的类中):

public class GetMybookings extends ListActivity {

    static HttpContext localContext = new BasicHttpContext();
        ....
        protected ArrayList<jobs> doInBackground(String... urls) {
            try {
                HttpClient httpClient = new DefaultHttpClient();
                HttpGet httpGet = new HttpGet(... api ....);
                HttpResponse response = null;

                try {
                    localContext.setAttribute(ClientContext.COOKIE_STORE, Common.cookieStore);
                    response = httpClient.execute(httpGet, localContext);

Answer 1

试试这个对我有用:

// Create a local instance of cookie store

public static CookieStore cookieStore = new BasicCookieStore();

// Create local HTTP context

static HttpContext localContext = new BasicHttpContext();

 // Bind custom cookie store to the local context

localContext.setAttribute(ClientContext.COOKIE_STORE, cookieStore);

// Pass local context as a parameter
HttpResponse  httpResponse = client.execute(request, localContext);

List<Cookie> cookies = cookieStore.getCookies();
for (int i = 0; i < cookies.size(); i++) {
    MLog.d("LOCAL COOKIES: ", ""+ cookies.get(i));
}

HttpEntity entity = httpResponse.getEntity();

尝试使用这个方法:

 // Create a local instance of cookie store
public static CookieStore cookieStore = new BasicCookieStore();

// Create local HTTP context
static HttpContext localContext = new BasicHttpContext();





private synchronized void executeRequest(String  url) {

        HttpPost request = new HttpPost(url);

        List<NameValuePair> params = new ArrayList<NameValuePair>();
             //place them in an array list
        params.add(new BasicNameValuePair("login", "login"));
        params.add(new BasicNameValuePair("username", username));
        params.add(new BasicNameValuePair("password", password));
        params.add(new BasicNameValuePair("api_key", "service_api"));

        request.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));

        HttpClient client = new DefaultHttpClient();

        HttpResponse httpResponse;

        // Bind custom cookie store to the local context
        localContext.setAttribute(ClientContext.COOKIE_STORE, cookieStore);

        try{
        // Pass local context as a parameter
        httpResponse = client.execute(request, localContext);

        List<Cookie> cookies = cookieStore.getCookies();
        for (int i = 0; i < cookies.size(); i++) {
            Log.d("LOCAL COOKIES: ", ""+ cookies.get(i));
        }

        HttpEntity entity = httpResponse.getEntity();

        if (entity != null) {

            InputStream instream = entity.getContent();
            String res = convertStreamToString(instream);

            instream.close();
        }
        } catch (Exception e) {

            client.getConnectionManager().shutdown();
            e.printStackTrace();


        }      
 }