在我的应用程序中,我向服务器发送 POST 请求,并从服务器接收响应。
我从响应中收集了不同的 cookie,特别是用户信息。因此,我发送登录请求并在服务器响应后接收 cookie,以保持登录。在 Android 4.3 及更低版本中,我可以正常接收 cookie,并且用户登录成功。但在Android 4.4中,用户登录成功,但没有收到cookie。
Android 是否做了一些重大改变才导致这种情况发生?如果有人有任何建议,下面是我的代码。
private URL urlObj;
private HttpURLConnection connection;
private DataOutputStream dataOs;
private ArrayList<String> schools;
private ArrayList<Post> schoolPosts;
private String schoolID;
private String name;
private String userLoginCookie, sessionSeedCookie, sessionUidCookie, sPrefCookie;
private Context context;
private CookieStore store;
public DataParser(Context _context) {
context = _context;
}
//First call whenever connecting across the user's network
private void establishConnection() throws IOException {
urlObj = new URL(url);
connection = (HttpURLConnection) urlObj.openConnection();
CookieManager cookieManager = new CookieManager();
cookieManager.setCookiePolicy(CookiePolicy.ACCEPT_ALL);
CookieHandler.setDefault(cookieManager);
store = cookieManager.getCookieStore();
getCookies();
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
connection.setRequestProperty("Cookie", sessionSeedCookie+";"+sessionUidCookie+";"+userLoginCookie+";"+sPrefCookie);
connection.setDoOutput(true);
connection.setUseCaches(false);
dataOs = new DataOutputStream(connection.getOutputStream());
}
//Called after communication is complete
private void disconnectAll() throws IOException {
connection.disconnect();
dataOs.close();
}
private void getCookies() {
SharedPreferences settings = context.getSharedPreferences(PREFS_NAME, 0);
userLoginCookie = settings.getString(USER_LOGIN, BLANK);
Log.d(LOG, "Cookie: "+userLoginCookie);
sessionSeedCookie = settings.getString(SESS_SEED, BLANK);
Log.d(LOG, "Cookie: "+sessionSeedCookie);
sessionUidCookie = settings.getString(SESS_UID, BLANK);
Log.d(LOG, "Cookie: "+sessionUidCookie);
sPrefCookie = settings.getString(S_PREF, "sPref="+BLANK);
Log.d(LOG, "Cookie: "+sPrefCookie);
}
private void updateCookies() {
SharedPreferences settings = context.getSharedPreferences(PREFS_NAME, 0);
SharedPreferences.Editor editor = settings.edit();
List<HttpCookie> cookieList = store.getCookies();
for(int i=0; i<cookieList.size(); i++) {
if(cookieList.get(i).getName().equals(USER_LOGIN))
editor.putString(USER_LOGIN, cookieList.get(i).toString());
else if(cookieList.get(i).getName().equals(SESS_SEED))
editor.putString(SESS_SEED, cookieList.get(i).toString());
else if(cookieList.get(i).getName().equals(SESS_UID))
editor.putString(SESS_UID, cookieList.get(i).toString());
else
Log.d(LOG, "Found Extra Cookie: "+cookieList.get(i).getName());
}
sPrefCookie = settings.getString(S_PREF, "sPref="+BLANK);
editor.commit(); //Save changes to the SharedPreferences
}
//Logins User into Walkntrade
public String login(String email, String password) throws IOException {
establishConnection(); //Instantiate all streams and opens the connection
String query= "intent=login&password="+password+"&email="+email+"&rememberMe=true";
dataOs.writeBytes(query);
Log.d(LOG, "" + connection.getResponseCode());
updateCookies();
String response = readInputAsString(connection.getInputStream());
Log.d(LOG, "Connection Status: "+response);
disconnectAll();
return response;
}
//Logs user out of Walkntrade
public void logout() throws IOException {
establishConnection();
String query = "intent=logout";
dataOs.writeBytes(query);
Log.d(LOG, "" + connection.getResponseCode());
updateCookies();
disconnectAll();
}
//Returns user login status
public static boolean isUserLoggedIn(Context _context) {
SharedPreferences settings = _context.getSharedPreferences(PREFS_NAME, 0);
boolean isUserLoggedIn = settings.getBoolean(DataParser.CURRENTLY_LOGGED_IN, false);
return isUserLoggedIn;
}
public String getUserName() throws IOException{
establishConnection();
String query = "intent=getUserName";
dataOs.writeBytes(query);
Log.d(LOG, ""+connection.getResponseCode());
updateCookies();
String response = readInputAsString(connection.getInputStream());
disconnectAll();
return response;
}
public String getUserAvatar() throws IOException {
establishConnection();
String query = "intent=getAvatar";
dataOs.writeBytes(query);
Log.d(LOG, ""+connection.getResponseCode());
updateCookies();
String response = readInputAsString(connection.getInputStream());
disconnectAll();
return response;
}