微信小程序 引入es6 promise

function wxPromisify(fn) {
return function (obj = {}) {
return new Promise((resolve,reject) => {
obj.success = function (res) {
//成功
resolve(res)
}
obj.fail = function (res) {
//失败
reject(res)
}
fn(obj)
})
}
}
//无论promise对象最后状态如何都会执行
Promise.prototype.finally = function (callback) {
let P = this.constructor;
return this.then(
value => P.resolve(callback()).then(() => value),reason => P.resolve(callback()).then(() => { throw reason })
);
};
/**

• 微信请求get方法
• url
• data 以对象的格式传入
  */
  function getRequest(url,data) {
  var getRequest = wxPromisify(wx.request)
  return getRequest({
  url: url,method: 'GET',data: data,header: {
  'Content-Type': 'application/json'
  }
  })
  }

/**

• 微信请求post方法封装
• url
• data 以对象的格式传入
  */
  function postRequest(url,data) {
  var postRequest = wxPromisify(wx.request)
  return postRequest({
  url: url,method: 'POST',header: {
  "content-type": "application/x-www-form-urlencoded"
  },})
  }

module.exports = {
postRequest: postRequest,getRequest: getRequest
}

function wxPromisify(fn) {
return function (obj = {}) {
return new Promise((resolve,reason => P.resolve(callback()).then(() => { throw reason })
);
};
/**

• 微信用户登录,获取code
  */
  function wxLogin() {
  return wxPromisify(wx.login)
  }
  /**
• 获取微信用户信息
• 注意:须在登录之后调用
  */
  function wxGetUserInfo() {
  return wxPromisify(wx.getUserInfo)
  }
  /**
• 获取系统信息
  */
  function wxGetSystemInfo() {
  return wxPromisify(wx.getSystemInfo)
  }
  module.exports = {
  wxPromisify: wxPromisify,wxLogin: wxLogin,wxGetUserInfo: wxGetUserInfo,wxGetSystemInfo: wxGetSystemInfo
  }

{ console.log('1.成功了') console.log(res.code) var url = config.getOpenidUrl; var params = { appid: "wxed7******2d465",secret: "e9c5e4c******09ecc5ebd811",js_code: res.code,grant_type: "authorization_code" } //2.获取openid return wxRequest.getRequest(url,params) }). then(res => { console.log('2.成功了') console.log(res) var url = app.globalData.ip + config.searchDgUrl var data = util.json2Form({ phoneNumber: '15971908021' }) //3.获取绑定手机号码 return wxRequest.postRequest(url,data) }). then(res => { console.log('3.成功了') console.log(res) //4.获取系统信息 var wxGetSystemInfo = wxApi.wxGetSystemInfo() return wxGetSystemInfo() }). then(res => { console.log('4.成功了') console.log(res) //5.获取用户信息 var wxGetUserInfo = wxApi.wxGetUserInfo() return wxGetUserInfo() }). then(res => { console.log('5.成功了') console.log(res.userInfo) that.setData({ userInfo: res.userInfo }) }) .finally(function (res) { console.log('finally~') wx.hideToast() }) } })