uni-app微信小程序登录并使用vuex存储登录状态的思路详解

openid: "ogtVM5RWdfadfasdfadfadV5s"
status: 1
// 状态码:status==0(该用户未注册,需调用注册接口) status==1(该用户已注册)

import store from '@/store'
const app = {
  apiUrl: 'https://aaa.bbbbb.com/', //请求的地址
  openidRequest(obj) {
    try {
      const openid = uni.getStorageSync('openid');
      if (openid) {
        if(obj.data) {
          obj.data["openid"] = openid;
        } else {
          obj.data = {"openid": openid};
        }
        obj.url = this.apiUrl + obj.url;
        uni.request(obj)
      } else {
        console.log("获取不到openid")
      }
    } catch (e) {
      console.log(e)
      console.log("获取不到openid")
    }
  },
  _getuserinfo(res) {
    var that = this
    var userinfoDetails = {} // 注册时,需要把用户信息传给后台,所以定义一个对象存储获取到的用户信息
    userinfoDetails = res.detail.userInfo 
    uni.getUserInfo({
     provider: 'weixin',
     success: function () {
      uni.login({
        success:function(res){
          uni.showLoading({
            title: '登陆中...',
            mask: false
          });
          uni.request({
            url: that.apiUrl + 'sdafl/ddfax/dfadf?code=' + res.code, //把code传给后台,后台返回openid和status
            success: (res) => {
              console.log(res)
              if (res.data.openid) {
                uni.setStorageSync('openid', res.data.openid)
                userinfoDetails.openid = res.data.openid
                //处理一下属性名传递给后台
                userinfoDetails = JSON.parse(JSON.stringify(userinfoDetails).replace(/avatarUrl/g, "headimgurl"));
                userinfoDetails = JSON.parse(JSON.stringify(userinfoDetails).replace(/gender/g, "sex"));
                userinfoDetails = JSON.parse(JSON.stringify(userinfoDetails).replace(/nickName/g, "nickname"));
                delete userinfoDetails.language;
                userinfoDetails.ppid = store.state.ppid || ''
                console.log(userinfoDetails)
              }
              // 当status==0时说明用户还没有注册需要注册
              if(res.data.status == 0) {
                that.sendInfo(userinfoDetails) // 调用注册接口,并把用户信息userinfoDetails传给后台
                console.log('我还没有注册')
              } else if (res.data.status == 1) {
                uni.showToast({
                  title: '登录成功',
                  icon: 'success',
                  duration: 2000
                })
                that.getUserData() // 调用获取用户信息的接口
              } else {
                uni.hideLoading()
                uni.showToast({
                  title: '登录失败',
                  duration: 2000,
                  icon:'none'
                })
              }
            }
          })
        }
      })
     }
    });
  },
  // 注册接口
  sendInfo(userinfoDetails) {
    var that = this
    uni.request({
      url: this.apiUrl + 'fdafd/ifdaffdex/fdaff',
      data: userinfoDetails,
      method: 'POST',
      success: (res) => {
        if(res.data.userinfo == 1) {
          uni.hideLoading()
          uni.showToast({
            title: '注册成功',
            icon: 'success',
            duration: 2000
          })
          that.getUserData() // 调用获取用户信息的接口
        } else {
          uni.hideLoading()
          uni.showToast({
            title: res.data.msg,
            duration: 2000
          })
        }
      }
    })
  },
  // 获取用户信息
  getUserData() {
    uni.request({
      url: this.apiUrl + 'sfad/dfadfad/idfadffde', 
      data: {
        openid: uni.getStorageSync('openid')
      },
      method: 'POST',
      success: (res) => {
        if(res.data.status == 1) {
          console.log(res.data)
          store.commit('login', res.data.user) // vuex的方法
        } else {
          uni.showToast({
            title: res.data.msg,
            duration: 2000
          })
        }
      }
    })
  }
}
export default app;

import Vue from 'vue'
import Vuex from 'vuex'

Vue.use(Vuex)

const store = new Vuex.Store({
  state: {
    hasLogin: false,
    userinfo: {},
    ppid: '',
  },
  mutations: {
    // 登录
    login(state,res) {
      state.hasLogin = true
      state.userinfo = res
      uni.setStorage({
        key: 'userinfo',
        data: res
      })
      // console.log(state.userinfo)
      // console.log(state.hasLogin)
    },
    // 二维码ppid
    saveppid(state,ppid) {
      state.ppid = ppid
      uni.setStorage({
        key: 'ppid',
        data: ppid
      })
      // console.log(state.ppid)
    },
  },
})

export default store