微信小程序值找不到 传参没有数据undefined 使用onfire
1.data-questionId的驼峰式命名是不行的必须小写
2.没有设置的合法域名去请求数据也会影响
//当时的app.js
importoDatafrom'./utils/network.js'
importStoragefrom'./utils/storage.js'
conststore=newStorage(wx);
constregeneratorRuntime=require('./utils/libs/regenerator-runtime/runtime-module.js')
App({
onLaunch:function(){
//扩展js方法
this.globalExpansion()
//判断设备是否为iPhoneX
this.checkIsIPhoneX()
constres=wx.getSystemInfoSync()
this.globalData.SystemInfo=res
console.log('onLaunch')
},
App_load:asyncfunction(){
letloaded=false
letuser=awaitthis.UserLogin()
if(user.data){
this.globalData.partyId=user.data.partyId
this.globalData.userTenantId=user.data.userTenantId
awaitthis.getStoreMessage()
loaded=true
}else{
loaded=false
}
returnloaded
},
globalExpansion:function(){
Array.prototype.equals=function(arr){
returnthis.sort().join()===arr.sort().join()
}
Date.prototype.Format=function(fmt){//author:meizz
varo={
"M+":this.getMonth()+1,//月份
"d+":this.getDate(),//日
"h+":this.getHours(),//小时
"m+":this.getMinutes(),//分
"s+":this.getSeconds(),//秒
"q+":Math.floor((this.getMonth()+3)/3),//季度
"S":this.getMilliseconds()//毫秒
};
if(/(y+)/.test(fmt))fmt=fmt.replace(RegExp.$1,(this.getFullYear()+"").substr(4-RegExp.$1.length));
for(varkino)
if(newRegExp("("+k+")").test(fmt))fmt=fmt.replace(RegExp.$1,(RegExp.$1.length==1)?(o[k]):(("00"+o[k]).substr((""+o[k]).length)));
returnfmt;
}
},
checkIsIPhoneX:function(){
constself=this
wx.getSystemInfo({
success:function(res){
//根据model进行判断
if(res.model.search('iPhoneX')!=-1){
self.globalData.isIPX=true
}
//或者根据screenHeight进行判断
//if(res.screenHeight==812){
//self.globalData.isIPX=true
//}
}
})
},
getStoreMessage:asyncfunction(){
letproductStoreId='10000'
letoptions={
path:'ProductStores',
parameters:{
$filter:`productStoreIdeq'${productStoreId}'`,
}
}
awaitoData.read(options).then(res=>{
if(res.data.value&&res.data.valueinstanceofArray&&res.data.value.length>0){
this.globalData.storeObject=res.data.value[0]
}
})
},
getSessionKey:function(){
returnnewPromise((resolve,reject)=>{
letwebSiteId=this.globalData.webSiteId
//检查Session是否过期
wx.checkSession({
//session_key未过期，并且在本生命周期一直有效
success:()=>{
letopenid=store.get('openid')
if(openid){
resolve(openid)
}else{
//重新登录
wx.login({
success:(res)=>{
if(res.code){
//发起网络请求
letoptions={
path:'getWxMiniprogramUserId',
method:'POST',
body:{
'code':`${res.code}`,
'webSiteId':`${webSiteId}`
}
}
oData.submit(options).then(res=>{
if(res.value){
letopenid=res.value
store.set('openid',openid)
resolve(openid)
}else{
resolve(false)
}
})
}else{
resolve(false)
console.log('登录失败！'+res.errMsg)
}
}
})
}
},
fail:()=>{
//session_key已经失效，需要重新执行登录流程
//重新登录
wx.login({
success:(res)=>{
if(res.code){
//发起网络请求
letoptions={
path:'getWxMiniprogramUserId',
method:'POST',
body:{
'code':`${res.code}`,
'webSiteId':`${webSiteId}`
}
}
oData.submit(options).then(res=>{
if(res.data.value){
letopenid=res.data.value
store.set('openid',openid)
resolve(openid)
}else{
resolve(false)
}
})
}else{
resolve(false)
console.log('登录失败！'+res.errMsg)
}
}
})
}
})
})
},
GlobalRequest:async(option)=>{
letres=awaitnewPromise((resolve,reject)=>{
wx.request({
url:option.url,
data:option.data||{},
method:option.method||'GET',
success:(res)=>{
resolve(res)
},
fail:(res)=>{
reject(res)
},
complete:(res)=>{
}
})
})
returnres
},
UserLogin:asyncfunction(){
letopenid=''
awaitthis.getSessionKey().then(res=>{
openid=res
})
letuser=''
if(openid){
letoption={
url:'https://https://www.cloudlakenet.com?openId='+openid
}
awaitthis.GlobalRequest(option).then(res=>{
if(res.statusCode===200||res.statusCode===204){
letcookies=res.header['Set-Cookie'].split(';')
letset_cookies=res.header['Set-Cookie']
store.set('x-cookie',set_cookies)
}
user=res
})
}
returnuser
},
globalData:{
regeneratorRuntime:regeneratorRuntime,
SystemInfo:'',
userInfo:null,
USERNAME:'posm2',
PASSWORD:'ofbiz',
prodCatalogId:'MPTC',
productStoreId:'10000',
webSiteId:'ECX-01',
isIPX:false,//当前设备是否为iPhoneX
storeObject:null,
partyId:null,
UomObj:{
'CNY':'¥'
},
requestUri:'TestAppOdataServlet',
timeOut:120,
authorizedFlag:false,
baseColor:'#0078c8',
shoppingCartObject:null,
userTenantId:null,
}
})
另外可以使用onfire方法传值
通过onfire.js为来实现这个效果
onfire.js的下载地址https://github.com/hustcc/onfire.js
使用思路：
A页面先订阅一个事件，并定义处理方法；
从B页面返回时，发送消息；
A页面卸载时，解除订阅。
方式:
var onfire = require("../utils/onfire.js");
var that;
var eventObj = onfire.on('key', function () {
// 当消息被传递时，做具体的事
});
Page({
data: {
},
onLoad: function(options) {
// Do some initialize when page load.
},
onReady: function() {
// Do something when page ready.
},
onUnload: function (e) {
onfire.un('key');
onfire.un(eventObj);//移除
}
var eventObj = onfire.on('key', function (data){
// 执行操作
})
})