Android WebView中可以直接全部清除cookie,但如果我们想要根据某个域名指定清除cookie,则大概代码如下:
必要方法:
public static void clearCookieByUrl(String url, CookieManager pCookieManager, CookieSyncManager pCookieSyncManager) {
Uri uri = Uri.parse(url);
String host = uri.getHost();
clearCookieByUrlInternal(url, pCookieManager, pCookieSyncManager);
clearCookieByUrlInternal("http://." + host, pCookieManager, pCookieSyncManager);
clearCookieByUrlInternal("https://." + host, pCookieManager, pCookieSyncManager);
}
private static void clearCookieByUrlInternal(String url, CookieManager pCookieManager, CookieSyncManager pCookieSyncManager) {
if (TextUtils.isEmpty(url)) {
return;
}
String cookieString = pCookieManager.getCookie(url);
Vector<String> cookie = getCookieNamesByUrl(cookieString);
if (cookie == null || cookie.isEmpty()) {
return;
}
int len = cookie.size();
for (int i = 0; i < len; i++) {
pCookieManager.setCookie(url, cookie.get(i) + "=-1");
}
pCookieSyncManager.sync();
}
private static Vector<String> getCookieNamesByUrl(String cookie) {
if (TextUtils.isEmpty(cookie)) {
return null;
}
String[] cookieField = cookie.split(";");
int len = cookieField.length;
for (int i = 0; i < len; i++) {
cookieField[i] = cookieField[i].trim();
}
Vector<String> allCookieField = new Vector<String>();
for (int i = 0; i < len; i++) {
if (TextUtils.isEmpty(cookieField[i])) {
continue;
}
if (!cookieField[i].contains("=")) {
continue;
}
String[] singleCookieField = cookieField[i].split("=");
allCookieField.add(singleCookieField[0]);
}
if (allCookieField.isEmpty()) {
return null;
}
return allCookieField;
}
调用方式:
String domainUrl = "http://www.facebook.com";
CookieManager mCookieManager = CookieManager.getInstance();
CookieSyncManager mCookieSyncManager = CookieSyncManager.createInstance(getApplicationContext());
Utils.clearCookieByUrl(domainUrl , mCookieManager, mCookieSyncManager);