关于Android Webview 设置Cookie问题详解

    private void syncCookie(final String loginUrl) {
        try {
            StringBuilder builder = new StringBuilder();
            URL url = null;
            byte[] data = builder.toString().getBytes("UTF-8");
            url = new URL(loginUrl);
            HttpURLConnection connection =
                    (HttpURLConnection) url.openConnection();

            connection.setDoOutput(true);
            connection.setRequestProperty("Content-Type",
                    "application/x-www-fORM-urlencoded");
            connection.setRequestProperty("Content-Length",
                    Integer.toString(data.length));
            connection.setInstanceFollowRedirects(false);
            connection.setRequestMethod("GET");
            OutputStream os = connection.getOutputStream();
            os.write(data);
            os.close();
            int aRstCode = connection.getResponseCode();
            if (aRstCode == HttpURLConnection.HTTP_OK) {
                cookie = connection.getHeaderField("Set-Cookie");
            }
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (ProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

cookieManager.getCookie(url);

		CookieManager cookieManager = CookieManager.getInstance();
        cookieManager.setAcceptCookie(true);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            cookieManager.setAcceptThirdPartyCookies(mWebView, true);//TODO 跨域cookie读取
            Log.d(TAG,"跨域cookie读取");
        }

    @SuppressLint("Newapi")
    private void setCookie(String cookie, String url) {
        String StrinGCookie = cookie;
        CookieSyncManager.createInstance(this);
        if (cookieManager == null) {
            cookieManager = CookieManager.getInstance();
        }
        cookieManager.setAcceptFileSchemeCookies(true);
        cookieManager.setAcceptCookie(true);
        if (Android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) {//这个代码是清楚webview里的所有cookie加不加完全看你自己。
            cookieManager.removeSessionCookies(null);
            cookieManager.flush();
        } else {
            cookieManager.removeAllCookie();
            CookieSyncManager.getInstance().sync();
        }
        runOnUiThread(new Runnable() {
            @Override
            public void run() {
                cookieManager.setCookie(url, StringCookie, new ValueCallback<Boolean>() {
                    @Override
                    public void onReceiveValue(Boolean aBoolean) {
                        Log.d(TAG,"setCookie() aBoolean:"+aBoolean);
                    }
                });
            }
        });
        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) {
            cookieManager.flush();
        } else {
            CookieSyncManager.getInstance().sync();
        }
    }