app.js
onLaunch() {
//判断运行环境
if (typeof __wxConfig == "object") {
let version = __wxConfig.envVersion;
if (version == "develop") {
//工具或者真机 开发环境
this.globalData.baseUrl = ‘http://127.0.0.1/‘
} else if (version == "trial") {
//测试环境(体验版)
// this.globalData.baseUrl = ‘‘
} else if (version == "release") {
//正式环境
this.globalData.baseUrl = ‘‘
}
}
//保存设备信息
wx.getSystemInfo({
success: function (res) {
wx.setStorageSync(‘system_version‘, res.system)
wx.setStorageSync(‘phone_modle‘, res.model)
}
})
},
globalData: {
baseUrl: ‘http://127.0.0.1/‘, //本地环境
}
alert(msg){
wx.showModal({
content: msg,
showCancel:false,
confirmColor:‘#00bc8d‘
})
},
tip(msg){
wx.showToast({
title: msg,
icon:‘none‘
})
},
微信小程序http.js
const app = getApp();
//o -> {params:{},url:‘‘} 请求参数，url为必须的
function GET(o) {
return request(‘GET‘, o);
}
function POST(o) {
return request(‘POST‘, o);
}
function request(method,o) {
return new Promise(function (resolve, reject) {
const requestData = args(o)
wx.showLoading({
title: ‘请求中...‘,
mask:true
})
wx.request({
url: app.globalData.baseUrl + o.url,
data: requestData,
method: method, // OPTIONS, GET, HEAD, POST, PUT, DELETE, TRACE, CONNECT
header: {
‘Content-Type‘: ‘application/json‘
},
success: function (res) {
wx.hideLoading();
if (res.statusCode == 200) { //网络请求状态
if(res.data.code == 200){ //后端返回code ==200成功，其他失败
resolve(res)
}else{
reject(res);
}
} else {
app.alert(‘请求出错！‘)
}
},
fail: function (e) {
wx.hideLoading()
app.alert(‘请求失败！‘)
}
})
})
}
//公共参数
function args(o) {
return {
mobile: wx.getStorageSync(‘phoneNumber‘)||‘‘,
imei: ‘smallProgram‘,
token: wx.getStorageSync(‘token‘)||‘‘,
methodName: o.url.split(‘/‘).join(‘.‘),
source: ‘12‘,
phone_modle: wx.getStorageSync(‘phone_modle‘),
time_stamp: new Date().getTime() + ‘‘,
system_version: wx.getStorageSync(‘system_version‘),
app_version: ‘1.0.0‘,
ip_address: ‘‘,
parameter: o.params||{}
}
}
module.exports = {
‘GET‘: GET,
‘POST‘: POST,
}
使用示例：
const http = require(‘http.js‘)
let params = {
url:‘name/contraller‘,
prams:{}// 如果有参数传这个对象里，反则无需这个对象
}
http.POST(params).then((res)=>{
//do something when request success!
}).catch((res)=>{
app.tip(res.data.message)
})
微信小程序-request,promise请求封装DEMO
原文：https://www.cnblogs.com/Joseph-lrc/p/14464445.html
