1/fore-end/app.js

// app.js
const {http} = require('./utils/util')
const {login,getUserInfo} = require('./API/appraise')

App({
  onLaunch() {
    // 展示本地存储能力
    const logs = wx.getStorageSync('logs') || []
    logs.unshift(Date.now())
    wx.setStorageSync('logs', logs)

	//开发者信息
	const wxInfo = {
		appid: 	'wxc25f00d0fc026ae7',
		appSecret: '9e94011d65b0f4307b1cab14022ea060'
	}
const ui_w = 360;
	//把vid存到缓存
	wx.setStorageSync('vid', '')
// 获取屏幕的宽度
var clientWidth = wx.getSystemInfoSync().windowWidth;
var loginOption = {
	
	header :{
		"Content-Type": 'application/x-www-form-urlencoded',
	},
	data:{
		vid: wx.getStorageSync('vid')
	},
}
var infoOption = {
	header:{
		"Authorization": wx.getStorageSync('token')
	},
}
	//检测缓存是否有token
	// console.log(wx.getStorageSync('token'));
	if(wx.getStorageSync('token') == ''){

		console.log('token不存在');
		// 登录
		wx.login({
			success: (res) => {
				//获取用户昵称和头像
			  
				//和微信接口服务校验
			  console.log("code: "+res.code);
			  var url = 'https://api.weixin.qq.com/sns/jscode2session?appid=' + wxInfo.appid + '&secret=' + wxInfo.appSecret + '&js_code=' + res.code + '&grant_type=authorization_code'
			  wx.request({
				url:url,
				success: (res) => {
					console.log(res);
					console.log(res.data.openid);
					wx.setStorageSync('vid', res.data.openid);
					console.log(wx.getStorageSync('vid'));
					loginOption.data = {
						vid: wx.getStorageSync('vid'),
					}
					console.log(loginOption.data);
					login(loginOption).then(res => {
						console.log(res);
						wx.setStorageSync('token', res.data.data.token);
						wx.setStorageSync('uid', res.data.data.user_info.uid);
						wx.setStorageSync('avatarUrl', res.data.data.user_info.avatar);
						wx.setStorageSync('nickName', res.data.data.user_info.name);
					}).catch(err => {
						console.log(err);
						wx.navigateTo({
							url: '/pages/register/register',
						})
					})
				}
			  })
			}
		  })
	}else{
		getUserInfo(infoOption).then(res => {
			console.log(res);
			console.log('token有效');
			wx.setStorageSync('uid', res.data.data.uid);
			wx.setStorageSync('avatarUrl', res.data.data.avatar);
			wx.setStorageSync('nickName', res.data.data.name);
			wx.setStorageSync('personalSignatrue', res.data.data.sign);
			console.log(wx.getStorageSync('uid'));
		}).catch(err => {
			console.log('token已失效，请重新登录');
			wx.login({
				success: (res) => {
					//和微信接口服务校验
				  console.log("code: "+res.code);
				  var url = 'https://api.weixin.qq.com/sns/jscode2session?appid=' + wxInfo.appid + '&secret=' + wxInfo.appSecret + '&js_code=' + res.code + '&grant_type=authorization_code'
				  wx.request({
					url:url,
					success: (res) => {
						console.log(res);
						console.log(res.data.openid);
						wx.setStorageSync('vid', res.data.openid);
						console.log(wx.getStorageSync('vid'));
						loginOption.data = {
							vid: wx.getStorageSync('vid'),
						}
						login(loginOption).then(res => {
							console.log(res);
							wx.setStorageSync('token', res.data.data.token);
							wx.setStorageSync('uid', res.data.data.user_info.uid);
							wx.setStorageSync('avatarUrl', res.data.data.user_info.avatar);
							wx.setStorageSync('nickName', res.data.data.user_info.name);
						}).catch(err => {
							console.log(err);
							wx.navigateTo({
								url: '/pages/register/register',
							})
						})
					}
				  })
				}
			  })
			
		})

	}
    
  },
  globalData: {
    userInfo: null
  }
})