如何在android中對cookie進行讀寫?針對這個問題,這篇文章詳細介紹了相對應的分析和解答,希望可以幫助更多想解決這個問題的小伙伴找到更簡單易行的方法。
讀取cookie:
try
{
DefaultHttpClient httpclient = new DefaultHttpClient();
HttpGet httpget = new HttpGet("http://www.hlovey.com");
HttpResponse response = httpclient.execute(httpget);
HttpEntity entity = response.getEntity();
List<Cookie> cookies = httpclient.getCookieStore().getCookies();
if (entity != null) {
entity.consumeContent();
}
if (cookies.isEmpty()) {
Log.i(TAG, "NONE");
} else {
for (int i = 0; i < cookies.size(); i++) {
Log.i(TAG,"- domain " + cookies.get(i).getDomain());
Log.i(TAG,"- path " + cookies.get(i).getPath());
Log.i(TAG,"- value " + cookies.get(i).getValue());
Log.i(TAG,"- name " + cookies.get(i).getName());
Log.i(TAG,"- port " + cookies.get(i).getPorts());
Log.i(TAG,"- comment " + cookies.get(i).getComment());
Log.i(TAG,"- commenturl" + cookies.get(i).getCommentURL());
Log.i(TAG,"- all " + cookies.get(i).toString());
}
}
httpclient.getConnectionManager().shutdown();
}catch(Exception e){
//Todo
}finally{
//Todo
}通過分析com.android.browser的源碼,發現android默認的browser增加cookie是在數據庫中增加記錄,和window不同,win是采用一個txt文本文件的形式來存儲cookie。而android是將cookie存儲在數據庫中。具體的介紹在《android cookie存儲位置》一文中有介紹。我們都知道,android每個應用程序的存儲空間都是獨立的。不管使用preference還是database存儲,都會在每個/data/data/package name/下面進行存儲(preference存儲在/data/data/package name/shared_prefs/xxxx.xml)。前面也說到cookie是存在數據庫中,那么如果采用非瀏覽器訪問網絡需要保留cookie的話我們就應該在database中建立cookies表,并且存入相應的cookies數據。仿照默認broswer的代碼:
/**聲明一些數據庫操作的常量*/
private static SQLiteDatabase mDatabase = null;
private static final String DATABASE_FILE = "webview.db";
private static final String COOKIES_NAME_COL = "name";
private static final String COOKIES_VALUE_COL = "value";
private static final String COOKIES_DOMAIN_COL = "domain";
private static final String COOKIES_PATH_COL = "path";
private static final String COOKIES_EXPIRES_COL = "expires";
private static final String COOKIES_SECURE_COL = "secure";
mDatabase = LoginApiActivity.this.openOrCreateDatabase(DATABASE_FILE, 0, null);
//創建cookie數據庫
if (mDatabase != null) {
// cookies
mDatabase.execSQL("CREATE TABLE IF NOT EXISTS cookies "
+ " (_id INTEGER PRIMARY KEY, "
+ COOKIES_NAME_COL + " TEXT, " + COOKIES_VALUE_COL
+ " TEXT, " + COOKIES_DOMAIN_COL + " TEXT, "
+ COOKIES_PATH_COL + " TEXT, " + COOKIES_EXPIRES_COL
+ " INTEGER, " + COOKIES_SECURE_COL + " INTEGER" + ");");
mDatabase.execSQL("CREATE INDEX IF NOT EXISTS cookiesIndex ON "
+ "cookies" + " (path)");
}
}
/*寫cookie*/
public void addCookie(Cookie cookie) {
if (cookie.getDomain() == null || cookie.getPath() == null || cookie.getName() == null
|| mDatabase == null) {
return;
}
String mCookieLock = "asd";
synchronized (mCookieLock) {
ContentValues cookieVal = new ContentValues();
cookieVal.put(COOKIES_DOMAIN_COL, cookie.getDomain());
cookieVal.put(COOKIES_PATH_COL, cookie.getPath());
cookieVal.put(COOKIES_NAME_COL, cookie.getName());
cookieVal.put(COOKIES_VALUE_COL, cookie.getValue());
mDatabase.insert("cookies", null, cookieVal);
}
}關于如何在android中對cookie進行讀寫問題的解答就分享到這里了,希望以上內容可以對大家有一定的幫助,如果你還有很多疑惑沒有解開,可以關注億速云行業資訊頻道了解更多相關知識。
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