如何使用cookie在android中保持会话？

Question

需要我的应用程序登录并保持相同的会话ID，直到我注销。在mij登录我用这个：

     public class loginTask extends AsyncTask<String, String, String> {

            @Override
            protected String doInBackground(String... params) {
                String loginData = params[0];
                String text = "";
                BufferedReader reader = null;

                // Send data
                try {
                    // Defined URL  where to send data
                    URL url = new URL(URL);

                    // getting cookies:
                    URLConnection conn = url.openConnection();
                    conn.connect();

                    // setting cookies
                    cookieManager.setCookies(url.openConnection());
                    cookieManager.storeCookies(conn);
}

当应用程序自动登录时，它需要将一些数据发送到不同的URL：

Public class sendVisumNo extends AsyncTask<String, String, String> {

        @Override
        protected String doInBackground(String... params) {
            String visumNo = params[0];
            String text = "";
            BufferedReader reader = null;

            // Send data
            try {
                // Defined URL  where to send data
                URL send_visum_url= new URL(SEND_VISUM_URL);

                // getting cookies:
                conn = loginURL.openConnection();
                conn.connect();

                // setting cookies
                cookieManager.setCookies(loginURL.openConnection());
                cookieManager.storeCookies(conn);
}

如何为SEND_VISUM_URL提供与第一个相同的Cookie /会话ID？直到我退出

非常感谢任何帮助！

Answer 1

您可以使用SharedPreferences来执行此操作 This is more complete answer to shared preferences.

private SharedPreferences preferences;
private SharedPreferences.Editor editor;
preferences = getSharedPreferences("com.example.yourpackagename.bla", Context.MODE_PRIVATE);`

存储数据：

String cookies="someweirdbigstring";
editor = preferences.edit();
editor.putString("cookies",cookies);
editor.apply()

检索数据：

String cookies = preferences.getString("cookies", null);
if (cookies!=null){
    //Do stuff with cookies
}else{
    // No cookies
}