微信小程序从注册账号到上架（图文详解）

{
 "pages": [
  "pages/index/index",
  "pages/detail/index"
 ],
 "window": {
  "backgroundColor": "#F6F6F6",
  "backgroundTextStyle": "light",
  "navigationBarBackgroundColor": "#F6F6F6",
  "navigationBarTitleText": "SCI IF期刊影响因子查询2019",
  "navigationBarTextStyle": "black"
 },
 "sitemapLocation": "sitemap.json"
}

// 云函数入口文件
const cloud = require('wx-server-sdk')

cloud.init()

// 云函数入口函数
exports.main = async (event, context) => {
 const wxContext = cloud.getWXContext()

 return {
  event,
  openid: wxContext.OPENID,
  appid: wxContext.APPID,
  unionid: wxContext.UNIONID,
 }
}

cd /path/to/your/cloudfunctions
npm install //安装wx-cloud-server
npm install got --save
npm install cheerio --save

// 加载相关类库
const cloud = require('wx-server-sdk')
const got = require('got')
const querystring = require('querystring')
const cheerio = require('cheerio')
cloud.init()
// 云函数入口函数
exports.main = async (event, context) => {
 const wxContext = cloud.getWXContext()
 //sci影响因子查询接口
 const sci_url = 'some url'
 //获取期刊名称
 let sciname = event.sciname
 let querys = querystring.stringify({ q: sciname, sci: 1 });
 //请求数据
 let resp = await got(sci_url + String(querys))
 //解析html
 const $ = cheerio.load(resp.body)
 const lists = $(".tb1 tr")
 //判断是否存在查询期刊
 if (lists.children().length == 0) {
  return -1
 }else{
  let jounalLists = lists.map((i, item) => {
   return {
    //期刊编号
    no: $(item).children().eq(0).text(),
    //省略部分内容，解析html参数
    //影响因子解析
    if: $(item).children().eq(7).text(),
   }
  }).get()
  return jounalLists //返回解析结果
 }
}

<!--index.wxml-->
 <view class='head_img'>
 <van-cell-group custom-class="cell_group">
 <van-field
 custom-class="cell_filed"
 value="{{ sciname }}"
 placeholder="期刊名称/首字母/缩写/ISSN"
 border="{{ false }}"
 focus="true"
 bind:change="onValueChange"
 />
 </van-cell-group>
 </view>
<view class="container">
 <view class="btn-area">
 <van-button type="info" size="large" round="true" bind:click="onClickQuery" loading="{{isQuery}}">查询</van-button>
 </view>
 <view wx:if="{{sci.length>0}}">
 <van-cell-group title="共找到{{sci.length}}本期刊">
 <view wx:for="{{sci}}"wx:for-index="idx" wx:for-item="item" wx:key="idx">
  <van-cell title="{{item.sciname}}" 
  value="{{item.if}}" border="false" 
  title-width="80%"
  is-link link-type="navigateTo"
  url="/pages/detail/index"/>
 </view>
 </van-cell-group>
 </view>
</view>

//index.js
const app = getApp()
Page({
 data: {
 isQuery:false,
 sciname:'',
 sci:[],
 },
 onValueChange:function(value){
 this.setData({
 sciname:value.detail
 })
 },
 onClickQuery:function(){
 var _this = this
 this.setData({
 isQuery:true
 })
 console.log('begin'+_this.data.sciname)
 wx.cloud.callFunction({
 name: 'http_get',
 data: {
 sciname:_this.data.sciname
 },
 success:res=>{
 //未查到
 if(res.result==-1){
  wx.showModal({
  title: '提示',
  content: '未查询到相关信息，换个关键词试试？',
  }) 
 }else{
  wx.setStorageSync('scis', res.result)
  _this.setData({
  sci:res.result
  })
 }
 _this.setData({
  isQuery: false
 })
 },
 fail:err=>{
 _this.setData({
  isQuery: false
 })
 console.log(err)
 },
 })
 },
 onLoad: function() {
 },
//省略部分代码
})