【vue+nestjs】qq第三方授权登录【超详细】

项目场景：

前端使用vue3+ts 后端使用nestjs

---

1.申请appId,appKey

1.进入qq互联官网。创建应用

特别注意
在填写网站回调域时,需要你线上真实能访问的。不然审核不通过。我的回调地址是前端路由地址

2.代码演示

特别注意:
如果你跟我一样是前后端分离的模式开发的，应用回调地址填写的应该是你的前端路由地址。在你的前端页面获取code，把code值传给后端接口。后端接口通过code获取gitee用户信息。

代码演示

我的应用回调地址:http://localhost:8080/vuecms/qq

1. 前端点击qq图标登录代码:

<div @click="handleToLogin('qq')">
     gitee
</div>

const handleToLogin = (type:string)=>{
   window.location.href="http://localhost:3000/user/oauth/qq"
}

2. http://localhost:3000/user/oauth/qq后端接口代码

	@Get('/oauth/qq')
  async qqLogin(@Res() response: Response) {
    let appId = 你的appId;
    let redirectUrl = 你的回调地址;
    const state = Date.now()
    let scope = "get_user_info,list_album"
    return qqOauthConfig.authorizeUrl+`&client_id=${appId}&redirect_uri=${redirectUrl}&state=${state}&scope=${scope}`;
  }

3. 回调地址前端代码

<template>
    <div class="u-f u-f-ac u-f-ajc" style="width: 100%;height:100vh">
        <template v-if="isOauth">
            <el-result
                    icon="success"
                    title="授权成功,跳转中..."
            >
            </el-result>
        </template>
        <template v-else>
            <el-result
                    icon="error"
                    title="授权失败"
            >
            </el-result>
        </template>
    </div>
</template>

<script setup lang="ts">
    import {useRoute,useRouter} from "vue-router";
    import {onMounted} from "@vue/runtime-core";
    import {requestGiteeLogin} from "@/network/common/oauthPage";
    import {setToken, setUserId, setUsername} from "@/utils/storage";
    import {handleGetCurInstance} from "@/utils/utils";
    import {ref} from "vue"
    let route = useRoute()
    let router = useRouter()
    let query = route.query;
    let {model} = handleGetCurInstance()
    let isOauth = ref(true)
    onMounted(()=>{
    	//获取返回的code，通过code对后端发起请求，获取qq用户信息
         let {code,state} = query;
        let form = {
            code,state
        }
        requestQQLogin(form).then(res=>{
            let {data,code,message} = res;
            if(code==200){
                setToken(data.token)
                setUserId(data.id)
                setUsername(data.username)
                window.location.href="/"
            }else{
                model.handleMsg(message,"warning")
                isOauth.value =false;
            }
        })
    })
</script>

4. requestQQLogin请求的后端代码

// qq 的认证配置
export const qqOauthConfig = {
  cid: "",//gitee官网设置获取
  secret: "",
  redirectURL: '',//gitee官网配置进行填写
  authorizeUrl: 'https://graph.qq.com/oauth2.0/authorize?response_type=code',
  getAccessTokenUrl: 'https://graph.qq.com/oauth2.0/token?grant_type=authorization_code',
  openId:"https://graph.qq.com/oauth2.0/me",
  qqUserAPI:"https://graph.qq.com/user/get_user_info"
};

	//qq登录
  @Post('/oauth/qqLogin')
  async getQQInfo(@Body() qqLoginDto:QqLoginDto,@IpAddress() clientIp: string) {
      let {code,operationSystem,browser} = giteeLoginDto
    let accessToken:any = await this.handleGetQQAccessToken(code)
    if(!accessToken.data){
      return this.msgService.fail("code过期，请重新登录")
    }
    let giteeInfo:any = await this.getQQInfoByAccessToken(accessToken.data.accessToken,accessToken.data.appId);
    if(!giteeInfo.data){
      return this.msgService.fail("获取qq账号信息失败")
    }
    let { nickname } = giteeInfo.data.userData;
    let clientId = 0;
    let qqId = sysConfigEnum.qqLoginConfig + JSON.parse(JSON.stringify(giteeInfo.data.openid));
    //判断qq是否有关联账号。如果有就登陆，没有就新创建一个账号
    let userNum = await this.userEntity.createQueryBuilder().where({ qqId:qqId }).getCount()
    let username;
    //没有账号，注册帐号
    if(userNum<=0){
      let roleData = await this.roleEntity.createQueryBuilder().where({roleName:"试用角色"}).getOne()
      username = handleGetCode(8);
      username = await this.handleGetUsername(username);
      let originalPwd = handleGetCode(8);
      let password = JSON.parse(JSON.stringify(originalPwd))
      password = securityMd5(password)
      let userData;
      try {
        userData = await this.userEntity.createQueryBuilder().insert().values({username,originalPwd,password,qqId:qqId,roleId:roleData.id}).execute();
      }catch (error) {
        throw new HttpException(error,HttpStatus.SERVICE_UNAVAILABLE)
      }
      clientId = userData.identifiers[0]["id"]
    }else{
      let userData = await this.userEntity.createQueryBuilder().where({qqId:qqId}).getOne()
      username = userData.username
      clientId = userData.id;
    }
    let ip  = handleDealIpv6ToIpv4(clientIp)
    let token = this.authService.createToken({id:clientId,username,ip})
    await this.updateUserInfoStatus(clientId,token,ip,operationSystem,browser)
    return {
      id:clientId,username,token
    }
  }
  
//获取gitee的accessToken
  async handleGetQQAccessToken(code:string):Promise<resInterface>{
    let key = sysConfigEnum.qqLoginConfig
    let data = await this.sysConfigService.handleGetSysData(key)
    if(!data.appId || !data.appKey || !data.redirectUrl){
      return {data:false,msg:""};
    }
    let appId = data.appId;
    let appKey = data.appKey;
    let redirectUrl = data.redirectUrl;//回调路劲获取code
    let authData = await axios.get(qqOauthConfig.getAccessTokenUrl+`&code=${code}&client_id=${appId}&client_secret=${appKey}&redirect_uri=${redirectUrl}`).then(res=>{
      let resArr = res.data.split("&")
      let accessToken = resArr[0].split("=")[1]
      let expiresIn = resArr[1].split("=")[1]
      let refreshToken = resArr[2].split("=")[1]
      return {accessToken,expiresIn,refreshToken};
    }).catch(err=>{
      return err.data
    })
    if(authData?.error){
      return this.msgService.commonRes(false,authData?.error?.error_description);
    }else{
      return this.msgService.commonRes({accessToken:authData?.accessToken,appId},"");
    }
  }
  //通过access_token获取gitee信息
  async getQQInfoByAccessToken(accessToken: boolean | string,appId:string){
    let authData = await axios.get(qqOauthConfig.openId+`?access_token=${accessToken}`).then(res=>{
      let data = JSON.parse(res.data.substring(9, res.data.length-3))
      let clientId = data.client_id;
      let openid = data.openid;
      return {clientId,openid};
    }).catch(err=>{
      return err.data
    })
    if(authData?.error){
      return this.msgService.commonRes(false,authData?.error?.error_description);
    }
    let userData = await axios.get(qqOauthConfig.qqUserAPI+`?access_token=${accessToken}&oauth_consumer_key=${appId}&openid=${authData.openid}`).then(res=>{
      return res.data;
    }).catch(err=>{
      return err.data
    })
    if(userData?.error){
      return this.msgService.commonRes(false,authData?.error?.error_description);
    }else{
      return this.msgService.commonRes({userData,openid:authData.openid},"");
    }
  }

3.特别注意

如果以上步骤都没问题。需要把本地测试回调地址改为线上路径

如果你还是不懂，你可以克隆下我的项目。开源免费。如果对你有帮助，给我一个star就行了
https://gitee.com/derekgo/vue-cms_xg

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如果有不懂可以留言，我看到了应该会回复
如有错误，请多多指教