)

1.搭建数据库连接,使用后端获取数据

为了后期方便维护，我们先将所有的后端接口通过一个文件来保存，在根目录下新建config文件夹随后建立api.js文件。

// 以下是业务服务器API地址// 本机开发API地址var WxApiRoot = 'http://localhost:8080/wx/';// 测试环境部署api地址// var WxApiRoot = 'http://192.168.0.101:8070/demo/wx/';// 线上平台api地址//var WxApiRoot = 'https://www.oa-mini.com/demo/wx/';module.exports = {IndexUrl: WxApiRoot + 'home/index', //首页数据接口SwiperImgs: WxApiRoot+'swiperImgs', //轮播图MettingInfos: WxApiRoot+'meeting/list', //会议信息};

1.请求方式的封装

loadMeetingInfos(){let that=this;wx.request({url: api.IndexUrl,dataType: 'json',success(res) {console.log(res)that.setData({lists:res.data.data.infoList})}})})})

从后台获取数据

2.化一下代码，这样写太繁琐了

在/utils/util.js中添加下列代码

/*** 封装微信的request请求*/
function request(url, data = {}, method = "GET") {return new Promise(function (resolve, reject) {wx.request({url: url,data: data,method: method,header: {'Content-Type': 'application/json',},success: function (res) {if (res.statusCode == 200) {resolve(res.data);//会把进行中改变成已成功} else {reject(res.errMsg);//会把进行中改变成已失败}},fail: function (err) {reject(err)}})});
}

然后可以改成

loadMeetingInfos(){// let that=this;// wx.request({//     url: api.IndexUrl,//     dataType: 'json',//     success(res) {//       console.log(res)//       that.setData({//           lists:res.data.data.infoList//       })//     }//   })let that = this;utils.request(api.IndexUrl).then(res => {console.log(res);this.setData({lists: res.data.infoList})})},

大大的·简化了代码
注意在module.exports中导出和需要使用的页面js中使用实const util = require(“…/…/utils/util”)

3.前端代码

<!--index.wxml-->
<view><swiper autoplay="true" indicator-dots="true"><block wx:for="{{imgSrcs}}" wx:key="text"><swiper-item><view><image src="{{item.img}}" class="swiper-item" /></view></swiper-item></block></swiper>
</view>
<wxs src="/utils/comm.wxs" module="tools" /><view class="mobi-title"><text class="mobi-icon"></text><text class="mobi-text">会议信息</text>
</view>
<block wx:for-items="{{lists}}" wx:for-item="item" wx:key="item.id"><view class="list" data-id="{{item.id}}"><view class="list-img"><image class="video-img" mode="scaleToFill" src="{{item.image !=null? item.image : '/static/persons/2.jpg'}}"></image></view><view class="list-detail"><view class="list-title"><text>{{item.title}}</text></view><view class="list-tag"><view class="state"> {{tools.getState(item.state)}}</view><view class="join"><text class="list-num"> {{tools.getNumber(item.canyuze,item.liexize,item.zhuchiren)}}</text>人报名</view></view><view class="list-info"><text>{{item.location}}</text>|<text>{{tools.formatDate(item.starttime)}}</text></view></view></view>
</block>
<view class="section"><text>到底啦</text>
</view>

/* pages/index/index.wxss */
.mobi-title {font-size: 12pt;color: #777;line-height: 110%;font-weight: bold;width: 100%;padding: 15rpx;background-color: #f3f3f3;
}.mobi-icon {padding: 0rpx 3rpx;border-radius: 3rpx;background-color: #ff7777;position: relative;margin-right: 10rpx;
}/*list*/
.list {display: flex;flex-direction: row;width: 100%;padding: 0 20rpx 0 0;border-top: 1px solid #eeeeee;background-color: #fff;margin-bottom: 5rpx;/* border-radius: 20rpx;box-shadow: 0px 0px 10px 6px rgba(0,0,0,0.1); */
}.list-img {display: flex;margin: 10rpx 10rpx;width: 150rpx;height: 220rpx;justify-content: center;align-items: center;
}.list-img .video-img {width: 120rpx;height: 120rpx;}.list-detail {margin: 10rpx 10rpx;display: flex;flex-direction: column;width: 600rpx;height: 220rpx;
}.list-title text {font-size: 11pt;color: #333;font-weight: bold;
}.list-detail .list-tag {display: flex;height: 70rpx;
}.list-tag .state {font-size: 9pt;color: #81aaf7;width: 120rpx;border: 1px solid #93b9ff;border-radius: 2px;margin: 10rpx 0rpx;display: flex;justify-content: center;align-items: center;
}.list-tag .join {font-size: 11pt;color: #bbb;margin-left: 20rpx;display: flex;justify-content: center;align-items: center;
}.list-tag .list-num {font-size: 11pt;color: #ff6666;
}.list-info {font-size: 9pt;color: #bbb;margin-top: 20rpx;
}
.bottom-line{display: flex;height: 60rpx;justify-content: center;align-items: center;background-color: #f3f3f3;
}
.bottom-line text{font-size: 9pt;color: #666;
}

四、WXS的使用

用于解决一些样式问题
先再utils创建一个文件名字为comm.wxs

1…解决数据显示数字问题

function getState(state){// 状态：0取消会议1待审核2驳回3待开4进行中5开启投票6结束会议，默认值为1if(state == 0 ){return '取消会议';}else if(state == 1 ){return '待审核';}else if(state == 2 ){return '驳回';}else if(state == 3 ){return '待开';}else if(state == 4 ){return '进行中';}else if(state == 5 ){return '开启投票';}else if(state == 6 ){return '结束会议';}return '其它';}

在wxs页面导出

module.exports = {getState: getState,getNumber:getNumber,formatDate:formatDate,
};

在wxlm页面引入

<wxs src="/utils/comm.wxs" module="tools" />
即可使用

2. 解决统计人数问题

var getNumber = function(canyuze,liexize,zhuchiren) {var person = canyuze+","+liexize+","+zhuchiren;return person.split(",").length;
}

3.解决时间进制问题

function formatDate(ts, option) {var date = getDate(ts)var year = date.getFullYear()var month = date.getMonth() + 1var day = date.getDate()var week = date.getDay()var hour = date.getHours()var minute = date.getMinutes()var second = date.getSeconds()//获取 年月日if (option == 'YY-MM-DD') return [year, month, day].map(formatNumber).join('-')//获取 年月if (option == 'YY-MM') return [year, month].map(formatNumber).join('-')//获取 年if (option == 'YY') return [year].map(formatNumber).toString()//获取 月if (option == 'MM') return  [mont].map(formatNumber).toString()//获取 日if (option == 'DD') return [day].map(formatNumber).toString()//获取 年月日 周一 至 周日if (option == 'YY-MM-DD Week')  return [year, month, day].map(formatNumber).join('-') + ' ' + getWeek(week)//获取 月日 周一 至 周日if (option == 'MM-DD Week')  return [month, day].map(formatNumber).join('-') + ' ' + getWeek(week)//获取 周一 至 周日if (option == 'Week')  return getWeek(week)//获取 时分秒if (option == 'hh-mm-ss') return [hour, minute, second].map(formatNumber).join(':')//获取 时分if (option == 'hh-mm') return [hour, minute].map(formatNumber).join(':')//获取 分秒if (option == 'mm-dd') return [minute, second].map(formatNumber).join(':')//获取 时if (option == 'hh')  return [hour].map(formatNumber).toString()//获取 分if (option == 'mm')  return [minute].map(formatNumber).toString()//获取 秒if (option == 'ss') return [second].map(formatNumber).toString()//默认 时分秒 年月日return [year, month, day].map(formatNumber).join('-') + ' ' + [hour, minute, second].map(formatNumber).join(':')
}
function formatNumber(n) {n = n.toString()return n[1] ? n : '0' + n
}function getWeek(n) {switch(n) {case 1:return '星期一'case 2:return '星期二'case 3:return '星期三'case 4:return '星期四'case 5:return '星期五'case 6:return '星期六'case 7:return '星期日'}
}