如何扫码登录另一个qq（如何实现第三方QQ登录）

2.2 注册开发者

2.3 文档

3.1. QQ登录OAuth2.0总体处理流程

QQ登录OAuth2.0总体处理流程如下：

Step1：申请接入，获取appid和apikey；

Step2：开发应用，并设置协作者帐号进行测试联调；

Step3：放置QQ登录按钮；

Step4：通过用户登录验证和授权，获取Access Token；

Step5：通过Access Token获取用户的openid；

Step6：调用OpenAPI，来请求访问或修改用户授权的资源。

4.1 maven导入包

<!-- QQ第三方登录-->

<dependency>

<groupId>net.gplatform</groupId>

<artifactId>Sdk4J</artifactId>

<version>2.0</version>

</dependency>

4.2. 配置

最好查看qq给出的demo例子

创建 qqconnectconfig.properties放在resources根目录下

app_ID = 101543517

app_KEY = 3d43255254a6f50876661fe2bec86684

redirect_URI = http://javatv.cn/loginAfter

scope = get_user_info,add_topic,add_one_blog,add_album,upload_pic,list_album,add_share,check_page_fans,add_t,add_pic_t,del_t,get_repost_list,get_info,get_other_info,get_fanslist,get_idollist,add_idol,del_ido,get_tenpay_addr

baseURL = https://graph.qq.com/

getUserInfoURL = https://graph.qq.com/user/get_user_info

accessTokenURL = https://graph.qq.com/oauth2.0/token

authorizeURL = https://graph.qq.com/oauth2.0/authorize

getOpenIDURL = https://graph.qq.com/oauth2.0/me

addTopicURL = https://graph.qq.com/shuoshuo/add_topic

addBlogURL = https://graph.qq.com/blog/add_one_blog

addAlbumURL = https://graph.qq.com/photo/add_album

uploadPicURL = https://graph.qq.com/photo/upload_pic

listAlbumURL = https://graph.qq.com/photo/list_album

addShareURL = https://graph.qq.com/share/add_share

checkPageFansURL = https://graph.qq.com/user/check_page_fans

addTURL = https://graph.qq.com/t/add_t

addPicTURL = https://graph.qq.com/t/add_pic_t

delTURL = https://graph.qq.com/t/del_t

getWeiboUserInfoURL = https://graph.qq.com/user/get_info

getWeiboOtherUserInfoURL = https://graph.qq.com/user/get_other_info

getFansListURL = https://graph.qq.com/relation/get_fanslist

getIdolsListURL = https://graph.qq.com/relation/get_idollist

addIdolURL = https://graph.qq.com/relation/add_idol

delIdolURL = https://graph.qq.com/relation/del_idol

getTenpayAddrURL = https://graph.qq.com/cft_info/get_tenpay_addr

getRepostListURL = https://graph.qq.com/t/get_repost_list

version = 2.0.0.0

4.3. 建包oauth2并扫描

<context:component-scan base-package="cn.itsource.oauth2" />

4.4. 编写qqcontroller

@Controller public class QQController { @Autowired RestTemplate restTemplate; @Autowired UserService userService; // 将页面重定向到qq第三方的登录页面 @requestMapping(value = "/qqLogin") public void qqLogin(HttpServletRequest request, HttpServletResponse response) { try { response.setContentType("text/html;charset=utf-8"); response.sendRedirect(new Oauth().getAuthorizeURL(request));//将页面重定向到qq第三方的登录页面 } catch (Exception e) { e.printStackTrace(); } } // 登录之后回调地址 @RequestMapping(value = "/loginAfter") public String qqLoginAfter(HttpServletRequest request, HttpServletResponse response) { try { System.err.println("============登录之后回调地址=========="); AccessToken accessTokenObj = (new Oauth()).getAccessTokenByRequest(request); String accessToken = null, openID = null; long tokenExpireIn = 0L; if (accessTokenObj.getAccessToken().equals("")) { // 我们的网站被CSRF攻击了或者用户取消了授权 System.out.print("没有获取到响应参数"); } else { accessToken = accessTokenObj.getAccessToken(); tokenExpireIn = accessTokenObj.getExpireIn(); // 利用获取到的accessToken 去获取当前用的openid -------- start OpenID openIDObj = new OpenID(accessToken); openID = openIDObj.getUserOpenID(); System.err.println("===============" openID); // 获取qq信息 String url = "https://graph.qq.com/user/get_user_info?access_token=" accessToken "&oauth_consumer_key=101543517" "&openid=" openID "&format=json "; String json = restTemplate.getForObject(url, String.class); ObjectMapper objectMapper = new ObjectMapper(); HashMap map = objectMapper.readValue(json, HashMap.class); System.err.println(map); System.err.println(map.get("figureurl_qq_1")); // 如果用户表没有当前openid，那就添加用户，如果就有就直接跳转主界面main.jsp\ User user = new User(); user.setQqOpenId(openID); User u = userService.queryByParam(user); if (u != null) { System.out.println(u); return "main"; } else { // 添加用户 user.setHeadImg((String) map.get("figureurl_qq_1")); user.setLoginName(UUID.randomUUID().toString()); user.setLoginPwd("123456"); userService.insert(user); return "main"; } } } catch (Exception e) { e.printStackTrace(); } return null; } }

4.5 登录页面加入QQ登录

页面加入

绑定事件

4.6. 修改 hosts

C:\Windows\System32\drivers\etc

修改hosts文件，在末尾加入

127.0.0.1 javatv.cn