解决Android(安卓)webview设置cookie和cookie丢失的问题

Android页面嵌套了一个h5，H5页面内部有用户登陆页面，发现h5页面的登陆功能无法使用，一直登陆失败。和web那边商量一会，发现js写入的cookie丢失了。所有需要Android这边在重写写入一次。

    mWebView = view.findViewById(R.id.mall_view);    settings = mWebView.getSettings();    settings.setJavaScriptEnabled(true);    settings.setLoadsImagesAutomatically(true);    settings.setDomStorageEnabled(true);    //不缓存    settings.setCacheMode(WebSettings.LOAD_NO_CACHE);    mWebView.setWebViewClient(new MyWebViewClient());  class MyWebViewClient extends WebViewClient{    @Override    public boolean shouldOverrideUrlLoading(WebView view, String url) {      if (url != "") {        //重点写入cookie        HashMap map = new HashMap<>();        map.put("Referer", view.getUrl());        view.loadUrl(url, map);      }      return true;    }    @Override    public void onPageFinished(WebView view, String url) {      //获取登陆后的cookie,看是否写入      CookieManager cookieManager = CookieManager.getInstance();      String CookieStr = cookieManager.getCookie(url);      super.onPageFinished(view, url);    }  }

以上就解决了登陆失败的问题！

还有就是登陆状态的同步，需要保存和设置cookie

  /**   * 获取接口中的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();  }    //设置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();    }

补充知识：android webview带cookie访问url

问题描述

在原生和h5混合开发的时候会遇到这么一个问题,用webview加载某个url时,你只是app登录了账号,但是网页却没有,所有会禁止访问此url,webview就会显示白屏。

所以要访问此url，需要带上cookie进行访问。这个cookie就是用app登录时所存储的cookie

实现方法和一些环境

网络请求方式

HttpsUrlConnection

这里既然用到了HttpsUrlConnection 说明我所加载的url是https协议

所以webview加载的时候会白屏

报错信息:

这是由于证书和域名不匹配,我的调试环境在内网服务器上,而证书是绑定在公网的域名上的。

所以需要webView跳过证书验证,

跳过证书验证

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

然后设置cookie

cookie是在app使用HttpsUrlConnect发起登录请求时保存在本地的cookie

app登录成功后保存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);

是一个结构如下的值：

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

写入cookie

/***@param cookie 上面获取到的存储在本地的cookie字符串*@param url 要加载的页面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);  }

所有关键代码

 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, SslErrorHandler handler, SslError error) {     Log.e("weibiao",error.toString());     handler.proceed();   } }); initWebViewSettings();//webview的一些设置 setCookie(all_cookie,url);//在loadurl之前调用此方法 webView.loadUrl(url);

以上这篇解决Android webview设置cookie和cookie丢失的问题就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持脚本之家。

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