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在大家开发中，可能会使用Webview去加载网页，需要将应用开发中使用到必要的cookie信息同步到HarmonyOS的webview，也有可能从HarmonyOS的webview中获取cookie信息，如下写一个demo作为参考，基础的webview学习，大家参考如下链接 

https://developer.harmonyos.com/cn/docs/documentation/doc-guides/ui-java-component-webview-0000001092715158

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1、设置cookie

我们需要重写webAgent的接口，实现isNeedLoadUrl的方法中设置如下代码

ohos.agp.components.webengine.CookieStore mCookieStore = ohos.agp.components.webengine.CookieStore.getInstance();
mCookieStore.setCookieEnable(<span class="hljs-literal">true</span>);
mCookieStore.setCookie(url, <span class="hljs-string">"Domain="</span>+<span class="hljs-string">"1111"</span>);
mCookieStore.setCookie(url, <span class="hljs-string">"Path=/"</span>);
mCookieStore.setCookie(url, <span class="hljs-string">"Value=00000"</span>);

2、读取cookie

我们需要重写webAgent的接口，实现onPageLoaded的方法中设置如下代码

ohos.agp.components.webengine.CookieStore mCookieStore = ohos.agp.components.webengine.CookieStore.getInstance();
<span class="hljs-built_in">String</span> cookiestr=mCookieStore.getCookie(url);
HiLogUtils.PrintLog(cookiestr);

3、整体代码如下

XML 代码如下

<?xml version="1.0" encoding="utf-8"?>

<DirectionalLayout

    xmlns:ohos="http://schemas.huawei.com/res/ohos"

    ohos:height="match_parent"

    ohos:width="match_parent"

    ohos:orientation="vertical">

    <ohos.agp.components.webengine.WebView

        ohos:id="$+id:webview"

        ohos:height="0fp"

        ohos:weight="1"

        ohos:width="match_parent">

    </ohos.agp.components.webengine.WebView>

</DirectionalLayout>

Java 代码如下 

package com.harmony.alliance.mydemo.slice;



import com.harmony.alliance.mydemo.ResourceTable;

import ohos.aafwk.ability.AbilitySlice;

import ohos.aafwk.content.Intent;

import ohos.agp.components.webengine.CookieStore;

import ohos.agp.components.webengine.ResourceRequest;

import ohos.agp.components.webengine.WebAgent;

import ohos.agp.components.webengine.WebView;

import ohos.media.image.PixelMap;





public class WebviewAbilitySlice extends AbilitySlice {

    private WebView webView;



    @Override

    public void onStart(Intent intent) {

        super.onStart(intent);

        super.setUIContent(ResourceTable.Layout_ability_webview);



        webView = (WebView) findComponentById(ResourceTable.Id_webview);

        webView.getWebConfig().setJavaScriptPermit(true);

        webView.setWebAgent(new WebAgent() {

            @Override

            public void onl oadingPage(WebView webview, String url, PixelMap favicon) {

                super.onLoadingPage(webview, url, favicon);

                // 页面开始加载时自定义处理

                ohos.agp.components.webengine.CookieStore mCookieStore = ohos.agp.components.webengine.CookieStore.getInstance();

                mCookieStore.setCookieEnable(true);

                mCookieStore.setCookie(url, "Domain="+"luck");

                mCookieStore.setCookie(url, "Path=/");

                mCookieStore.setCookie(url, "Value=00000");

            }







            @Override

            public void onPageLoaded(WebView webView, String url) {

                super.onPageLoaded(webView, url);

                CookieStore cookieStore = CookieStore.getInstance();

                String cookiestr=cookieStore.getCookie(url);

                System.out.println("cookiestr=====>>"+cookiestr);

            }

        });

        autoLogin();

    }



    private void autoLogin() {

        Thread thread = new Thread(() -> {

            try {



                    getUITaskDispatcher().asyncDispatch(() -> {

                        showLoginedPage();

                    });

            } catch (Exception exception) {

                exception.printStackTrace();

            }

        });

        thread.start();

    }



    private void showLoginedPage() {

        try {

            String url = "https://www.baidu.com/";

            webView.load(url);

        } catch (Exception e) {

            e.printStackTrace();

        }

    }



    @Override

    public void onActive() {

        super.onActive();

    }



    @Override

    public void onForeground(Intent intent) {

        super.onForeground(intent);

    }

}

效果如下

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