Android頁面嵌套了一個h5，H5頁面內部有使用者登陸頁面，發現h5頁面的登陸功能無法使用，一直登陸失敗。和web那邊商量一會，發現js寫入的cookie丟失了。所有需要Android這邊在重寫寫入一次。

    mWebView = view.findViewById(R.id.mall_view);
    settings = mWebView.getSettings();
    settings.setJavaScriptEnabled(true);
    settings.setLoadsImagesAutomatically(true);
    settings.setDomStorageEnabled(true);
    //不快取
    settings.setCacheMode(WebSettings.LOAD_NO_CACHE);
    mWebView.setWebViewClient(new MyWebViewClient());

  class MyWebViewClient extends WebViewClient{
    @Override
    public boolean shouldOverrideUrlLoading(WebView view,String url) {
      if (url != "") {
        //重點寫入cookie
        HashMap<String,String> map = new HashMap<>();
        map.put("Referer",view.getUrl());
        view.loadUrl(url,map);
      }
      return true;
    }

    @Override
    public void onPageFinished(WebView view,String url) {
      //獲取登陸後的cookie,看是否寫入
      CookieManager cookieManager = CookieManager.getInstance();
      String CookieStr = cookieManager.getCookie(url);
      super.onPageFinished(view,url);
    }
  }

以上就解決了登陸失敗的問題！

還有就是登陸狀態的同步，需要儲存和設定cookie

  /**
   * 獲取介面中的cookie
   * @param loginUrl
   */
  private void syncCookie(final String loginUrl) {

    new Thread(new Runnable() {


      @Override
      public void run() {
        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.setRequestMethod("GET");
          connection.setInstanceFollowRedirects(false);
          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();
        }
      }
    }).start();
  }
    //設定cookie
    if(cookie != null && cookie.length() > 0){
      android.webkit.CookieManager cookieManager =
          android.webkit.CookieManager.getInstance();
      cookieManager.setAcceptCookie(true);
      cookieManager.setCookie(SysParam.shoppingMall,cookie);
      CookieSyncManager.getInstance().sync();
    }

補充知識：android webview帶cookie訪問url

問題描述

在原生和h5混合開發的時候會遇到這麼一個問題,用webview載入某個url時,你只是app登入了賬號,但是網頁卻沒有,所有會禁止訪問此url,webview就會顯示白屏。

所以要訪問此url，需要帶上cookie進行訪問。這個cookie就是用app登入時所儲存的cookie

實現方法和一些環境

網路請求方式

HttpsUrlConnection

這裡既然用到了HttpsUrlConnection 說明我所載入的url是https協議

所以webview載入的時候會白屏

報錯資訊:

1

這是由於證書和域名不匹配,我的除錯環境在內網伺服器上,而證書是繫結在公網的域名上的。

所以需要webView跳過證書驗證,

跳過證書驗證

 webView.setWebViewClient(new WebViewClient() {
      @Override
      public void onReceivedSslError(WebView view,SslErrorHandler handler,SslError error) {
        Log.e("app_name",error.toString());
        handler.proceed();
      }
    });

然後設定cookie

cookie是在app使用HttpsUrlConnect發起登入請求時儲存在本地的cookie

app登入成功後儲存cookie到本地

SharedPreferences sharedPreferences = getSharedPreferences("login",MODE_PRIVATE);
SharedPreferences.Editor editor = sharedPreferences.edit();
String cookieval = conn.getHeaderField("Set-Cookie");
editor.putString("all_cookie",cookieval);

是一個結構如下的值：

SESSION=f19b09e9-69b2-4ab4-9daf-ea224523a092; Path=/; Secure; HttpOnly

寫入cookie

/**
*@param cookie 上面獲取到的儲存在本地的cookie字串
*@param url 要載入的頁面url
*/
 private void setCookie(String cookie,String url) {
    String StringCookie = cookie;
    CookieManager cookieManager = CookieManager.getInstance();
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
      cookieManager.removeSessionCookies(null);
      cookieManager.flush();
    } else {
      cookieManager.removeSessionCookie();
      CookieSyncManager.getInstance().sync();
    }
    cookieManager.setAcceptCookie(true);
    cookieManager.setCookie(url,StringCookie);
  }

所有關鍵程式碼

 SharedPreferences sharedPreferences = getSharedPreferences("login",MODE_PRIVATE);
 String cookie = sharedPreferences.getString("session","");
 String all_cookie = sharedPreferences.getString("all_cookie","");
 Log.e("weibiao",all_cookie);
 webView = findViewById(R.id.other_account_service_webview);
 webView.setWebViewClient(new WebViewClient() {
   @Override
   public void onReceivedSslError(WebView view,SslError error) {
     Log.e("weibiao",error.toString());
     handler.proceed();
   }
 });
 initWebViewSettings();//webview的一些設定
 setCookie(all_cookie,url);//在loadurl之前呼叫此方法
 webView.loadUrl(url);

以上這篇解決Android webview設定cookie和cookie丟失的問題就是小編分享給大家的全部內容了，希望能給大家一個參考，也希望大家多多支援我們。