[[438480]]

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51CTO和華為官方合作共建的鴻蒙技術(shù)社區(qū)

https://harmonyos.51cto.com

前言

因?yàn)轼櫭上到y(tǒng)剛出不久，官方的第三方登錄SDK還沒出來，下面就介紹下在鴻蒙應(yīng)用中實(shí)現(xiàn)QQ登錄的方法(支持喚起QQ安卓客戶端進(jìn)行授權(quán))

前期準(zhǔn)備

登錄QQ開放平臺(tái) > 應(yīng)用管理 > 創(chuàng)建應(yīng)用 ，創(chuàng)建一個(gè)網(wǎng)站應(yīng)用。

注意：要選擇網(wǎng)站應(yīng)用，移動(dòng)應(yīng)用和小程序不適用該方案。

編寫代碼

判斷是否已登錄

獲取登錄狀態(tài)

在入口AbilitySliceMainAbilitySlice中進(jìn)行判斷。

從數(shù)據(jù)庫獲取token的值判斷是否已經(jīng)登錄賬號(hào) (已登錄返回token，未登錄返回null)

// 創(chuàng)建數(shù)據(jù)庫(這里使用官方提供的“輕量級(jí)數(shù)據(jù)存儲(chǔ)”，相關(guān)文檔：https://developer.harmonyos.com/cn/docs/documentation/doc-guides/database-preference-guidelines-0000000000030083) 
Preferences preferences = new DatabaseHelper(getApplicationContext()).getPreferences("DATA_NAME"); 
//  從數(shù)據(jù)庫獲取token的值判斷是否已經(jīng)登錄賬號(hào) (已登錄返回token，未登錄返回null) 
String token = preferences.getString("token",null); 

進(jìn)行相應(yīng)跳轉(zhuǎn)

已登錄跳轉(zhuǎn)至個(gè)人界面MyAbility，未登錄跳轉(zhuǎn)至登錄界面LoginAbility.

if(token != null){ 
            // 已登錄，跳轉(zhuǎn)至MyAbility 
            Intent myIntent = new Intent(); 
            myIntent.setParam("token", token); 
            Operation myOperation = new Intent.OperationBuilder() 
                    .withBundleName("cn.dsttl3.test") 
                    .withAbilityName("cn.dsttl3.qqlogin.MyAbility") 
                    .build(); 
            myIntent.setOperation(myOperation); 
            startAbility(myIntent); 
            terminateAbility(); 
}else { 
            // 未登錄，跳轉(zhuǎn)至LoginAbility 
            Intent loginIntent = new Intent(); 
            Operation loginOperation = new Intent.OperationBuilder() 
                    .withBundleName("cn.dsttl3.test") 
                    .withAbilityName("cn.dsttl3.qqlogin.LoginAbility") 
                    .build(); 
            loginIntent.setOperation(loginOperation); 
            startAbility(loginIntent); 
            terminateAbility(); 
} 

登錄界面的操作

申請(qǐng)網(wǎng)絡(luò)訪問權(quán)限

在config.json添加

"reqPermissions": [ 
      { 
        "name": "ohos.permission.INTERNET" 
      } 
    ] 

登錄界面布局文件ability_login.xml

在布局文件中添加以后webview組件

<?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:alignment="center" 
    ohos:orientation="vertical"> 
 
    <ohos.agp.components.webengine.WebView 
        ohos:id="$+id:WebView_qqlogin" 
        ohos:height="match_parent" 
        ohos:width="match_parent"/> 
 
</DirectionalLayout> 

登錄界面的AbilitySlice LoginAbilitySlice.java

需要用到的幾個(gè)常量

String state = UUID.randomUUID().toString();// 唯一標(biāo)識(shí)，成功授權(quán)后回調(diào)時(shí)會(huì)原樣帶回。 
String client_id = "101***151";//QQ開放平臺(tái) 應(yīng)用 APP ID 
String redirect_uri = "https%3A%2F%2Fapi.dsttl3.cn%2FRedis%2FQQLogin"; //應(yīng)用 網(wǎng)站回調(diào)域 需進(jìn)行url編碼，授權(quán)成功后會(huì)跳轉(zhuǎn)至該鏈接 
String authorize_url = "https://graph.qq.com/oauth2.0/authorize?response_type=code" + 
            "&client_id=" + client_id + 
            "&redirect_uri=" + redirect_uri + 
            "&state="+ state; 

 WebView的配置

WebView myWebView = (WebView) findComponentById(ResourceTable.Id_WebView_qqlogin); 
        myWebView.getWebConfig().setJavaScriptPermit(true);//支持JavaScript 
        myWebView.getWebConfig().setUserAgent("android");//將UserAgent設(shè)置為安卓，授權(quán)頁才顯示QQ客戶端一鍵登錄按鈕 

自定義WebAgent

當(dāng)WebView即將打開一個(gè)鏈接時(shí)調(diào)用isNeedLoadUrl方法，當(dāng)在網(wǎng)頁上點(diǎn)擊“一鍵登錄”時(shí)，打開QQ客戶端

wtloginmqq是QQ安卓客戶端URL Scheme

if (request.getRequestUrl().toString().startsWith("wtloginmqq")){ 
                   // 打開QQ客戶端 
                   Intent qqIntent = new Intent(); 
                   Operation qqOperation = new Intent.OperationBuilder() 
                           .withAction("android.intent.action.VIEW") 
                           .withUri(Uri.parse(request.getRequestUrl().toString())) 
                           .build(); 
                   qqIntent.setOperation(qqOperation); 
                   startAbility(qqIntent); 

因?yàn)槟壳斑€找不到網(wǎng)頁端喚起鴻蒙應(yīng)用的方法，所以QQ客戶端回調(diào)的code放在自己服務(wù)器處理。

授權(quán)成功后，會(huì)打開之前在QQ開放平臺(tái)設(shè)置的回調(diào)域redirect_uri

示例：https://api.dsttl3.cn/Redis/QQLogin?code=********&state=*****

code:QQ授權(quán)返回的code，用于申請(qǐng)token

state：在webview請(qǐng)求QQ授權(quán)頁面時(shí)傳入的唯一標(biāo)識(shí)，用于判斷用戶身份，方便后續(xù)從服務(wù)器請(qǐng)求token

出于安全考慮 ，請(qǐng)求token操作放在服務(wù)器上執(zhí)行。獲取到token后將token存入數(shù)據(jù)庫，客戶端通過請(qǐng)求https://api.dsttl3.cn/Redis/Get?key= + state來獲取到token

客戶端請(qǐng)求到token后，將token存儲(chǔ)到數(shù)據(jù)庫

 // 將token存入數(shù)據(jù)庫 
Preferences preferences = new DatabaseHelper(getApplicationContext()).getPreferences("DATA_NAME"); 
preferences.putString("token",token); 
preferences.flush(); 

token存儲(chǔ)完成后跳轉(zhuǎn)至MyAbility

自定義WebAgent完整代碼

myWebView.setWebAgent(new WebAgent(){ 
            // 當(dāng)WebView即將打開一個(gè)鏈接時(shí)調(diào)用該方法 
            @Override 
            public boolean isNeedLoadUrl(WebView webView, ResourceRequest request) { 
                // request.getRequestUrl().toString() WebView即將打開的鏈接地址 
                if (request.getRequestUrl().toString().startsWith("wtloginmqq")){ 
                    // 打開QQ客戶端 
                    Intent qqIntent = new Intent(); 
                    Operation qqOperation = new Intent.OperationBuilder() 
                            .withAction("android.intent.action.VIEW") 
                            .withUri(Uri.parse(request.getRequestUrl().toString())) 
                            .build(); 
                    qqIntent.setOperation(qqOperation); 
                    startAbility(qqIntent); 
                    // 向自己的服務(wù)器請(qǐng)求token 
                    new Thread(new Runnable() { 
                        @Override 
                        public void run() { 
                            while (true){ 
                                String getTokenURL = "https://api.dsttl3.cn/Redis/Get?key=" + state; 
                                try { 
                                    OkHttpClient client = new OkHttpClient(); 
                                    Request request = new Request.Builder().url(getTokenURL).build(); 
                                    String token = client.newCall(request).execute().body().string(); 
                                    if (token.length() == 32){ 
                                        getUITaskDispatcher().asyncDispatch(new Runnable() { 
                                            @Override 
                                            public void run() { 
                                                // 將token存入數(shù)據(jù)庫 
                                                Preferences preferences = new DatabaseHelper(getApplicationContext()).getPreferences("DATA_NAME"); 
                                                preferences.putString("token",token); 
                                                preferences.flush(); 
                                                // 跳轉(zhuǎn)至用戶界面 
                                                Intent myIntent = new Intent(); 
                                                Operation myOperation = new Intent.OperationBuilder() 
                                                        .withBundleName("cn.dsttl3.test") 
                                                        .withAbilityName("cn.dsttl3.qqlogin.MyAbility") 
                                                        .build(); 
                                                myIntent.setOperation(myOperation); 
                                                startAbility(myIntent); 
                                                terminateAbility(); 
                                            } 
                                        }); 
                                        break; 
                                    } 
                                    Time.sleep(1500); 
                                } catch (IOException e) { 
                                    e.printStackTrace(); 
                                } 
                            } 
                        } 
                    }).start(); 
                    return false; 
                } 
                return true; 
            } 
        }); 

加載網(wǎng)頁

myWebView.load(authorize_url); 

LoginAbilitySlice.java完整代碼

import cn.dsttl3.qqlogin.ResourceTable; 
import ohos.aafwk.ability.AbilitySlice; 
import ohos.aafwk.content.Intent; 
import ohos.aafwk.content.Operation; 
import ohos.agp.components.webengine.ResourceRequest; 
import ohos.agp.components.webengine.WebAgent; 
import ohos.agp.components.webengine.WebView; 
import ohos.data.DatabaseHelper; 
import ohos.data.preferences.Preferences; 
import ohos.miscservices.timeutility.Time; 
import ohos.utils.net.Uri; 
import okhttp3.OkHttpClient; 
import okhttp3.Request; 
import java.io.IOException; 
import java.util.UUID; 
 
public class LoginAbilitySlice extends AbilitySlice { 
 
    //QQ開放平臺(tái)登錄授權(quán)文檔 https://wiki.connect.qq.com/%e5%87%86%e5%a4%87%e5%b7%a5%e4%bd%9c_oauth2-0 
    String state = UUID.randomUUID().toString();// 唯一標(biāo)識(shí)，成功授權(quán)后回調(diào)時(shí)會(huì)原樣帶回。 
    String client_id = "101547151";//QQ開放平臺(tái) 應(yīng)用 APP ID 
    String redirect_uri = "https%3A%2F%2Fapi.dsttl3.cn%2FRedis%2FQQLogin"; //應(yīng)用 網(wǎng)站回調(diào)域 需進(jìn)行url編碼，授權(quán)成功后會(huì)跳轉(zhuǎn)至該鏈接 
    String authorize_url = "https://graph.qq.com/oauth2.0/authorize?response_type=code" + 
            "&client_id=" + client_id + 
            "&redirect_uri=" + redirect_uri + 
            "&state="+ state; 
    @Override 
    public void onStart(Intent intent) { 
        super.onStart(intent); 
        super.setUIContent(ResourceTable.Layout_ability_login); 
        WebView myWebView = (WebView) findComponentById(ResourceTable.Id_WebView_qqlogin); 
        myWebView.getWebConfig().setJavaScriptPermit(true); 
        myWebView.getWebConfig().setUserAgent("android"); 
        myWebView.setWebAgent(new WebAgent(){ 
            // 當(dāng)WebView即將打開一個(gè)鏈接時(shí)調(diào)用該方法 
            @Override 
            public boolean isNeedLoadUrl(WebView webView, ResourceRequest request) { 
                // request.getRequestUrl().toString() WebView即將打開的鏈接地址 
                if (request.getRequestUrl().toString().startsWith("wtloginmqq")){ 
                    // 打開QQ客戶端 
                    Intent qqIntent = new Intent(); 
                    Operation qqOperation = new Intent.OperationBuilder() 
                            .withAction("android.intent.action.VIEW") 
                            .withUri(Uri.parse(request.getRequestUrl().toString())) 
                            .build(); 
                    qqIntent.setOperation(qqOperation); 
                    startAbility(qqIntent); 
                    // 向自己的服務(wù)器請(qǐng)求token 
                    new Thread(new Runnable() { 
                        @Override 
                        public void run() { 
                            while (true){ 
                                String getTokenURL = "https://api.dsttl3.cn/Redis/Get?key=" + state; 
                                try { 
                                    OkHttpClient client = new OkHttpClient(); 
                                    Request request = new Request.Builder().url(getTokenURL).build(); 
                                    String token = client.newCall(request).execute().body().string(); 
                                    if (token.length() == 32){ 
                                        getUITaskDispatcher().asyncDispatch(new Runnable() { 
                                            @Override 
                                            public void run() { 
                                                // 將token存入數(shù)據(jù)庫 
                                                Preferences preferences = new DatabaseHelper(getApplicationContext()).getPreferences("DATA_NAME"); 
                                                preferences.putString("token",token); 
                                                preferences.flush(); 
                                                // 跳轉(zhuǎn)至用戶界面 
                                                Intent myIntent = new Intent(); 
                                                Operation myOperation = new Intent.OperationBuilder() 
                                                        .withBundleName("cn.dsttl3.test") 
                                                        .withAbilityName("cn.dsttl3.qqlogin.MyAbility") 
                                                        .build(); 
                                                myIntent.setOperation(myOperation); 
                                                startAbility(myIntent); 
                                                terminateAbility(); 
                                            } 
                                        }); 
                                        break; 
                                    } 
                                    Time.sleep(1500); 
                                } catch (IOException e) { 
                                    e.printStackTrace(); 
                                } 
                            } 
                        } 
                    }).start(); 
                    return false; 
                } 
                return true; 
            } 
        }); 
        myWebView.load(authorize_url); 
    } 
} 

個(gè)人界面

獲取token信息

Preferences preferences = new DatabaseHelper(getApplicationContext()).getPreferences("DATA_NAME"); 
String token = preferences.getString("token",null); 

 更新Text數(shù)據(jù)

Text text = findComponentById(ResourceTable.Id_text_helloworld); 
text.setText(token); 

后續(xù)操作

獲取用戶信息請(qǐng)參考QQ開放平臺(tái)文檔 https://wiki.connect.qq.com/get_user_info

文章相關(guān)附件可以點(diǎn)擊下面的原文鏈接前往下載

https://harmonyos.51cto.com/resource/1554

想了解更多內(nèi)容，請(qǐng)?jiān)L問：

51CTO和華為官方合作共建的鴻蒙技術(shù)社區(qū)

https://harmonyos.51cto.com