Android使用CookieManager来管理cookie。但只有一种方法'removeAllCookies()'来删除cookie,这删除了所有的cookie。现在我想删除仅与指定网址关联的Cookie,并且不会删除其他Cookie。在这种情况下,我该怎么办?
答案 0 :(得分:4)
我在@ summerxiaqing的回答中做了一些小改动,我查了一下。 (添加了https,将空检查更改为TextUtils.isEmpty,通过参数传递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;
}
活动内部
mContext = getApplicationContext();
CookieManager mCookieManager = CookieManager.getInstance();
CookieSyncManager mCookieSyncManager = CookieSyncManager.createInstance(mContext);
clearCookieByUrl("http://example.com", mCookieManager, mCookieSyncManager);
答案 1 :(得分:2)
1,Android不支持此界面。
2,在我们的项目中解决。
sCookieManager = CookieManager.getInstance();
public static void clearCookieByUrl(String url) {
Uri uri = Uri.parse(url);
String host = uri.getHost();
clearCookieByUrlInternal(url);
clearCookieByUrlInternal("http://." + host);
}
/**
* clear cookie by url
* @param url
*/
private static void clearCookieByUrlInternal(String url) {
if (Utils.isStringEmpty(url)) {
return;
}
String cookieString = sCookieManager.getCookie(url);
Vector<String> cookie = getCookieNamesByUrl(cookieString);
if (cookie == null || cookie.isEmpty()) {
return;
}
int len = cookie.size();
for (int i = 0; i < len; i++) {
sCookieManager.setCookie(url, cookie.get(i) + "=-1");
}
sCookieSyncManager.sync();
}
private static Vector<String> getCookieNamesByUrl(String cookie) {
if (Utils.isStringEmpty(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 (Utils.isStringEmpty(cookieField[i])) {
continue;
}
if (!cookieField[i].contains("=")) {
continue;
}
String[] singleCookieField = cookieField[i].split("=");
allCookieField.add(singleCookieField[0]);
}
if (allCookieField.isEmpty()) {
return null;
}
return allCookieField;
}
注意:在某些Android版本中(我没有确切的版本号,我的经验是android 2.3),系统将使用主机作为cookie域,另一方面,系统将使用'。' + host作为cookie域。因此,更好的方法是清楚它们。
答案 2 :(得分:0)
其他两个答案适用于Lollipop之前的版本。在较新的版本中,您应该替换:
sCookieSyncManager.sync();
具有:
sCookieManager.flush();