Android使用CookieManager来管理cookies。但是只有一种方法“removeAllCookies()”可以删除 cookie,这会删除所有 cookie。现在我只想删除与指定 url 关联的 cookie,而不会删除其他 cookie。遇到这种情况,我该怎么办?
最佳答案
我对@summerxiaqing 的答案做了一些小改动,并检查了它是否有效。 (添加了 https,将空检查更改为 TextUtils.isEmpty,通过参数传递给 CookieManager)
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;
}
Activity 内部
mContext = getApplicationContext();
CookieManager mCookieManager = CookieManager.getInstance();
CookieSyncManager mCookieSyncManager = CookieSyncManager.createInstance(mContext);
clearCookieByUrl("http://example.com", mCookieManager, mCookieSyncManager);
关于Android WebView removeCookie,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/11919953/