Android小记-根据domain清除cookie_cookies 设置domain 后清除-优快云博客

本文链接：https://blog.youkuaiyun.com/xuguobiao/article/details/51490753

本文介绍如何在Android的WebView中针对特定域名删除cookie。通过提供的代码示例，开发者可以实现精细化的cookie管理。

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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);