最近，一直在做VR3D项目，前端H5页面在webView中加载时，获取不到设置Cookie信息，排除了Cookie设置问题，期初怀疑是跨域导致，验证结果在客户端和IOS测试都发现其问题，但发现在android里跨域请求webView压根没自动把cookie带上，什么鬼...
群里有同仁提醒了我，接着就去翻Android源码，结果还真让我找到了问题点。
源码文件CookieManager.java
接下来看这个setAcceptThirdPartyCookies抽象方法(注意看注释):
/**
* Sets whether the {@link WebView} should allow third party cookies to be set.
* Allowing third party cookies is a per WebView policy and can be set
* differently on different WebView instances.
* <p>
* Apps that target {@link android.os.Build.VERSION_CODES#KITKAT} or below
* default to allowing third party cookies. Apps targeting
* {@link android.os.Build.VERSION_CODES#LOLLIPOP} or later default to disallowing
* third party cookies.
*
* @param webview the {@link WebView} instance to set the cookie policy on
* @param accept whether the {@link WebView} instance should accept
* third party cookies
*/
public abstract void setAcceptThirdPartyCookies(WebView webview, boolean accept);
重点看这个：
{@link android.os.Build.VERSION_CODES#LOLLIPOP} or later default to disallowing
* third party cookies
翻译：LOLLIPOP (代表API版本：21)这个版本以及以上版本默认不支持第三方cookie。
- 需要共享
cookie信息，必须设置setAcceptCookie（true）,意为允许存放和接收cookie- setAcceptFileSchemeCookies：允许存放和接收 file scheme URLs 中的cookie。谨慎使用
最后附上修改cookie代码：
public void synCookies(Context context) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
CookieSyncManager.createInstance(ProHelper.getApplication());
}
CookieManager cookieManager = CookieManager.getInstance();
cookieManager.setAcceptCookie(true);// 允许接受 Cookie
//>=LOLLIPOP 版本
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
cookieManager.setAcceptThirdPartyCookies(webView, true); //跨域cookie读取
}
String[] cookies = cookie.split(",");
// WEB_COOKIE_DOMAIN为支持的域名数组，如{".autohome.com",".che168.com"}
for (int i = 0; i < RegexURLUtil.WEB_COOKIE_DOMAIN.length; i++) {
for (String cooky : cookies) {
String[] values = cooky.split("=");
String url_cookies = values[0] + "=" + values[1] + ";domain=" + RegexURLUtil.WEB_COOKIE_DOMAIN[i] + ";path=/";
cookieManager.setCookie(RegexURLUtil.WEB_COOKIE_DOMAIN[i].replaceFirst(".", ""), url_cookies);
}
}
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
CookieSyncManager.getInstance().sync();
} else {
cookieManager.flush();
}
}
最后找到我们APP开发同学验证，果不其然啊。
