Java如何實現QQ第三方登入

首頁>技術>大話程式設計2019-12-26 16:41

Java如何實現QQ第三方登入

前期準備工作

1.雲伺服器

2.備案的域名

3.本地除錯需要修改hosts檔案，將域名對映到127.0.0.1

申請QQ互聯，併成為開發者

申請QQ互聯建立應用時需要備案域名，所以建議提前準備備案域名。

QQ互聯：https://connect.qq.com/index.html

稽核通過後建立應用

應用建立通過稽核後，就可以使用APP ID 和 APP Key

前期工作就這些了，後面可以開始寫程式碼了。

專案結構：

properties或者yml配置檔案（這裡就是簡單的配置了一下，可以自行新增資料庫等配置）

server.port=80server.servlet.context-path=/ #qq互聯qq.oauth.http:QQ互聯中申請填寫的網站地址

在pom中新增依賴

定義全域性變數獲取配置檔案中的網站地址

@Value(&#34;${qq.oauth.http}&#34;)private String http;

定義登入回撥地址（可以用網站地址拼接或者直接寫）

//QQ互聯中的回撥地址String backUrl = http + &#34;/index&#34;;

登入請求方法程式碼

@GetMapping(&#34;/qq/login&#34;)public String qq(HttpSession session) throws UnsupportedEncodingException {    //QQ互聯中的回撥地址    String backUrl = http + &#34;/index&#34;;     //用於第三方應用防止CSRF攻擊    String uuid = UUID.randomUUID().toString().replaceAll(&#34;-&#34;,&#34;&#34;);    session.setAttribute(&#34;state&#34;,uuid);     //Step1：獲取Authorization Code    String url = &#34;https://graph.qq.com/oauth2.0/authorize?response_type=code&#34;+            &#34;&amp;client_id=&#34; + QQHttpClient.APPID +            &#34;&amp;redirect_uri=&#34; + URLEncoder.encode(backUrl, &#34;utf-8&#34;) +            &#34;&amp;state=&#34; + uuid;     return &#34;redirect:&#34; + url;}

正確返回示例：

JSON示例:

Content-type: text/html; charset=utf-8{&#34;ret&#34;:0,&#34;is_lost&#34;:0,&#34;nickname&#34;:&#34;Peter&#34;,&#34;gender&#34;:&#34;男&#34;,&#34;country&#34;:&#34;中國&#34;,&#34;province&#34;:&#34;廣東&#34;,&#34;city&#34;:&#34;深圳&#34;,&#34;figureurl&#34;:&#34;http://imgcache.qq.com/qzone_v4/client/userinfo_icon/1236153759.gif&#34;,&#34;is_yellow_vip&#34;:1,&#34;is_yellow_year_vip&#34;:1,&#34;yellow_vip_level&#34;:7,&#34;is_yellow_high_vip&#34;: 0}

錯誤返回示例

Content-type: text/html; charset=utf-8{&#34;ret&#34;:1002,&#34;msg&#34;:&#34;請先登入&#34;}

使用者資料的介面文件：https://wiki.open.qq.com/wiki/v3/user/get_info

請求成功，使用者確認登入後回撥方法

@GetMapping(&#34;/index&#34;)public String qqcallback(HttpServletRequest request, HttpServletResponse response) throws Exception {    HttpSession session = request.getSession();    //qq返回的資訊    String code = request.getParameter(&#34;code&#34;);    String state = request.getParameter(&#34;state&#34;);    String uuid = (String) session.getAttribute(&#34;state&#34;);     if(uuid != null){        if(!uuid.equals(state)){            throw new QQStateErrorException(&#34;QQ,state錯誤&#34;);        }    }      //Step2：通過Authorization Code獲取Access Token    String backUrl = http + &#34;/index&#34;;    String url = &#34;https://graph.qq.com/oauth2.0/token?grant_type=authorization_code&#34;+            &#34;&amp;client_id=&#34; + QQHttpClient.APPID +            &#34;&amp;client_secret=&#34; + QQHttpClient.APPKEY +            &#34;&amp;code=&#34; + code +            &#34;&amp;redirect_uri=&#34; + backUrl;     String access_token = QQHttpClient.getAccessToken(url);     //Step3: 獲取回撥後的 openid 值    url = &#34;https://graph.qq.com/oauth2.0/me?access_token=&#34; + access_token;    String openid = QQHttpClient.getOpenID(url);     //Step4：獲取QQ使用者資訊    url = &#34;https://graph.qq.com/user/get_user_info?access_token=&#34; + access_token +            &#34;&amp;oauth_consumer_key=&#34;+ QQHttpClient.APPID +            &#34;&amp;openid=&#34; + openid;     //返回使用者的資訊    JSONObject jsonObject = QQHttpClient.getUserInfo(url);     //也可以放到Redis和mysql中，只取出了部分資料，根據自己需要取    session.setAttribute(&#34;openid&#34;,openid);  //openid,用來唯一標識qq使用者    session.setAttribute(&#34;nickname&#34;,(String)jsonObject.get(&#34;nickname&#34;)); //QQ名    session.setAttribute(&#34;figureurl_qq_2&#34;,(String)jsonObject.get(&#34;figureurl_qq_2&#34;)); //大小為100*100畫素的QQ頭像URL     //響應重定向到home路徑    return &#34;redirect:/home&#34;;}

QQ客戶端類QQHttpClient：

主要用於QQ訊息返回

import com.alibaba.fastjson.JSONObject;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.client.methods.HttpGet;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClients;import org.apache.http.util.EntityUtils; import java.io.IOException; public class QQHttpClient {    //QQ互聯中提供的 appid 和 appkey    public static final String APPID = &#34;appid&#34;;     public static final String APPKEY = &#34;appkey&#34;;      private static JSONObject parseJSONP(String jsonp){        int startIndex = jsonp.indexOf(&#34;(&#34;);        int endIndex = jsonp.lastIndexOf(&#34;)&#34;);         String json = jsonp.substring(startIndex + 1,endIndex);         return JSONObject.parseObject(json);    }    //qq返回資訊：access_token=FE04************************CCE2&amp;expires_in=7776000&amp;refresh_token=88E4************************BE14    public static String getAccessToken(String url) throws IOException {        CloseableHttpClient client = HttpClients.createDefault();        String token = null;         HttpGet httpGet = new HttpGet(url);        HttpResponse response = client.execute(httpGet);        HttpEntity entity = response.getEntity();         if(entity != null){            String result = EntityUtils.toString(entity,&#34;UTF-8&#34;);            if(result.indexOf(&#34;access_token&#34;) &gt;= 0){                String[] array = result.split(&#34;&amp;&#34;);                for (String str : array){                    if(str.indexOf(&#34;access_token&#34;) &gt;= 0){                        token = str.substring(str.indexOf(&#34;=&#34;) + 1);                        break;                    }                }            }        }         httpGet.releaseConnection();        return token;    }    //qq返回資訊：callback( {&#34;client_id&#34;:&#34;YOUR_APPID&#34;,&#34;openid&#34;:&#34;YOUR_OPENID&#34;} ); 需要用到上面自己定義的解析方法parseJSONP    public static String getOpenID(String url) throws IOException {        JSONObject jsonObject = null;        CloseableHttpClient client = HttpClients.createDefault();         HttpGet httpGet = new HttpGet(url);        HttpResponse response = client.execute(httpGet);        HttpEntity entity = response.getEntity();         if(entity != null){            String result = EntityUtils.toString(entity,&#34;UTF-8&#34;);            jsonObject = parseJSONP(result);        }         httpGet.releaseConnection();         if(jsonObject != null){            return jsonObject.getString(&#34;openid&#34;);        }else {            return null;        }    }     //qq返回資訊：{ &#34;ret&#34;:0, &#34;msg&#34;:&#34;&#34;, &#34;nickname&#34;:&#34;YOUR_NICK_NAME&#34;, ... }，為JSON格式，直接使用JSONObject物件解析    public static JSONObject getUserInfo(String url) throws IOException {        JSONObject jsonObject = null;        CloseableHttpClient client = HttpClients.createDefault();         HttpGet httpGet = new HttpGet(url);        HttpResponse response = client.execute(httpGet);        HttpEntity entity = response.getEntity();          if(entity != null){            String result = EntityUtils.toString(entity,&#34;UTF-8&#34;);            jsonObject = JSONObject.parseObject(result);        }         httpGet.releaseConnection();         return jsonObject;    }}

異常類QQStateErrorException：

public class QQStateErrorException extends Exception {    public QQStateErrorException() {        super();    }     public QQStateErrorException(String message) {        super(message);    }     public QQStateErrorException(String message, Throwable cause) {        super(message, cause);    }     public QQStateErrorException(Throwable cause) {        super(cause);    }     protected QQStateErrorException(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace) {        super(message, cause, enableSuppression, writableStackTrace);    }}

首頁controller用於跳轉頁面

@Controllerpublic class IndexController {     @GetMapping({&#34;/index&#34;, &#34;/&#34;})    public String index(){        return &#34;index&#34;;    }     @GetMapping(&#34;/home&#34;)    public String home(HttpSession session, Model model){        String openid = (String) session.getAttribute(&#34;openid&#34;);        String nickname = (String) session.getAttribute(&#34;nickname&#34;);        String figureurl_qq_2 = (String) session.getAttribute(&#34;figureurl_qq_2&#34;);         model.addAttribute(&#34;openid&#34;,openid);        model.addAttribute(&#34;nickname&#34;,nickname);        model.addAttribute(&#34;figureurl_qq_2&#34;,figureurl_qq_2);         return &#34;home&#34;;    }}

還有兩個簡單的登入頁面和資訊頁面

index.html

&lt;!DOCTYPE html&gt;&lt;html lang=&#34;en&#34;&gt;&lt;head&gt;    &lt;meta charset=&#34;UTF-8&#34;&gt;    &lt;title&gt;Title&lt;/title&gt;&lt;/head&gt;&lt;body&gt;&lt;div&gt;    &lt;img th:src=&#34;${figureurl_qq_2}&#34;&gt;&lt;/div&gt;&lt;span th:text=&#34;${openid}&#34;&gt;&lt;/span&gt;&lt;span th:text=&#34;${nickname}&#34;&gt;&lt;/span&gt;&lt;/body&gt;&lt;/html&gt;

劇多

Java如何實現QQ第三方登入

Java

騰訊QQ

資料庫

JSON

HTML

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