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app.js
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//app.js
App({
onLaunch: function () {
//小程序启动后出发
// 展示本地存储能力
var logs = wx.getStorageSync('logs') || []
logs.unshift(Date.now())
wx.setStorageSync('logs', logs)
//检查session是否过期
wx.checkSession({
success: () => {
console.log('session not expired');
},
fail: () => {
//失败则去重新登录
login();
}
})
// 获取用户信息
wx.getSetting({
success: res => {
console.log(res.authSetting['scope.userInfo']);
if (res.authSetting['scope.userInfo']) {
// 已经授权,可以直接调用 getUserInfo 获取头像昵称,不会弹框
wx.getUserInfo({
success: res => {
// 可以将 res 发送给后台解码出 unionId
this.globalData.userInfo = res.userInfo
// 由于 getUserInfo 是网络请求,可能会在 Page.onLoad 之后才返回
// 所以此处加入 callback 以防止这种情况
if (this.userInfoReadyCallback) {
this.userInfoReadyCallback(res)
}
}
})
}
}
})
function login() {
wx.login({
success: res => {
wx.request({
url: 'http://wechat-server.com/api/login',
data: {
code: res.code
},
success: res => {
wx.setStorage({
key: 'thirdKey',
data: res.data.thirdKey,
})
},
fail: () => {
console.log('wx login failed');
}
})
}
})
}
},
globalData: {
userInfo: null
}
})