解决Android 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<string, string> 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:

1

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。