首先android5.0 实现了WebView与 框架的自动cookie同步,无需额外操作。
5.0一下版本需要手动同步cookie
方法如下
<pre name="code" class="java">CookieSyncManager.createInstance(context); CookieManager cookieManager = CookieManager.getInstance(); cookieManager.setAcceptCookie(true); cookieManager.removeAllCookie(); List<Cookie> cookies = new PersistentCookieStore(context).getCookies(); for (Cookie cookie : cookies) { //注意这里为什么放肆的写了个cookie.getDomain(),而不是像api里边说的url,类似baidu.com如果是域名,直接设置“baidu.com“, cookieManager.setCookie(<span style="color:#ff0000;">cookie.getDomain()</span>, cookie.getName() + "=" + cookie.getValue() + "; domain=" + cookie.getDomain() + "; path=" + cookie.getPath()); } CookieSyncManager.getInstance().sync();
这涉及到了cookie的知识,设置cookie时,会先检测cookie的Domain是否和url网址的域名一致,如果不一致设置cookie失败。
所以url在里边起到作用,就是检测Domain域名, 设置在这个域名下的所有url的请求的cookie。
如果是设置一个设置二级的url,反倒不容易理解。
看看google api注释:
/** * Sets a cookie for the given URL. Any existing cookie with the same host, * path and name will be replaced with the new cookie. The cookie being set * must not have expired and must not be a session cookie, otherwise it * will be ignored. * * @param url the URL for which the cookie is set * @param value the cookie as a string, using the format of the 'Set-Cookie' * HTTP response header */ public void setCookie(String url, String value) { throw new MustOverrideException(); }
url the URL for which the cookie is set ,如果不了解cookie的原理,这让解释更容易让读者理解为,只是设置了这个子url的cookie
时间: 2024-10-13 22:20:59