微信小程序实现天气预报功能(附源码)
前言
最近在学小程序开发,刚好学到天气预报功能的制作,于是给大家分享下。
效果图
这里我用的是和风天气的API，打开官网注册或者登陆你的账号
进入控制台,新建应用
这是刚刚我们创建好的应用，点击添加KEY
选择WebAPI
这注册好我们的API了
登陆小程序后台，分别点击开发和开发设置
点击修改，将我们API的域名添加到request合法域名里面https://free-api.heweather.net
.wxml
<view class="header">
<view class="top">
<view class="city">
{{city}}
</view>
<view class="search">
<input placeholder="输入城市名" bindinput="bindKeyInput" placeholder-style="color:white"></input>
<view class="bt_search" bindtap="search">
<icon type="search" size="18" color="white"></icon>
</view>
</view>
</view>
<view class="center">
<view class="tmp">
{{tmp}}°
</view>
<image mode="widthFix" class="cond-image" src="https://moyv.top/wechat/images/weather/{{imgsrc}}.png">
</image>
</view>
<view class="bottom">
<view>{{wind_dir}} {{wind_sc}}级</view>
<view>湿度 {{hum}}%</view>
<view>气压 {{pres}}Pa</view>
</view>
</view>
<view class="container">
<view class="hourly_title">24小时预报</view>
<scroll-view scroll-x="true" class="hourly">
<view class="h_item" wx:for="{{hourly}}" wx:key="index">
<text class="h_time">{{item.time}}</text>
<view class="h_img">
<image mode="widthFix" src="https://moyv.top/wechat/images/weather/{{item.imgsrc}}.png"></image>
</view>
<text class="h_tmp">{{item.tmp}}°</text>
<text class="h_wind_dir">{{item.wind_dir}}</text>
<text class="h_wind_sc">{{item.wind_sc}}级</text>
</view>
</scroll-view>
<view class="hourly_title">7天预报</view>
<scroll-view scroll-x="true" class="daily">
<view class="d_item" wx:for="{{daily_forecast}}" wx:key="index">
<text class="d_txt">{{item.d_txt}}</text>
<text class="d_date">{{item.d_date}}</text>
<view class="h_img">
<image mode="widthFix" src="https://moyv.top/wechat/images/weather/{{item.imgsrc_d}}.png"></image>
</view>
<text class="h_tmp">{{item.tmp_min}}°~{{item.tmp_max}}°</text>
<view class="h_img">
<image mode="widthFix" src="https://moyv.top/wechat/images/weather/{{item.imgsrc_n}}.png"></image>
</view>
<text class="d_wind_dir">{{item.wind_dir}}</text>
<text class="d_wind_sc">{{item.wind_sc}}级</text>
</view>
</scroll-view>
</view>
<view class="footer">
-天气数据来自和风天气api-
</view>
.wxss
page {
background-color: #f6f6f6;
}
.header {
background-color:#64c8fa;
/* background-image: linear-gradient(to right, #64a0f8, #64c8fa); */
height: 450rpx;
padding-top: 32rpx;
text-align: center;
}
.top {
display: flex;
justify-content: space-between;
align-content: center;
align-items: center;
}
.city {
text-align: center;
color: white;
display: inline-block;
font-size: 52rpx;
margin-left: 32rpx;
}
.search {
margin-right: 32rpx;
border-radius: 8rpx;
display: inline-flex;
justify-content: center;
align-content: center;
align-items: center;
background-color: rgba(0, 0, 0, 0.1);
height: 70rpx;
}
.search input {
width: 200rpx;
padding: 18rpx 32rpx;
text-align: left;
color: white;
display: inline-block;
}
.bt_search {
border-radius: 0 8rpx 8rpx 0;
height: 100%;
background-color: rgba(0, 0, 0, 0.1);
display: inline-flex;
justify-content: center;
align-content: center;
align-items: center;
}
.bt_search icon {
margin: 8rpx 18rpx;
}
.center {
display: flex;
justify-content: space-between;
align-content: center;
align-items: center;
}
.tmp {
margin-left: 18rpx;
display: inline-block;
font-size: 180rpx;
color: white;
}
.cond-image{
width: 200rpx;
margin-right: 32rpx;
margin-top: 32rpx;
}
.bottom{
display: flex;
justify-content: space-between;
align-content: center;
align-items: center;
}
.bottom view{
color: white;
margin: 32rpx;
}
.hourly_title{
font-weight: bold;
font-size: 42rpx;
padding: 18rpx 32rpx;
}
.hourly {
width: 718rpx;
margin: 0 18rpx;
border-radius: 18rpx;
box-shadow: 0.1rem 0.1rem 0.5rem rgba(0, 0, 0, 0.15);
white-space: nowrap;
background-color: white;
}
.h_item {
margin: 18rpx 0;
display: inline-block;
width: 143.5rpx;
text-align: center;
font-size: 28rpx;
}
.h_img {
margin: 64rpx 0;
}
.h_img image {
width: 60rpx;
}
.h_item text {
display: block;
}
.h_time {
color: gray;
}
.h_wind_dir {
margin-top: 32rpx;
}
.h_wind_sc {
color: gray;
}
.h_tmp {
color: #027aff;
}
.daily {
width: 718rpx;
white-space: nowrap;
margin: 0 18rpx;
background-color: white;
border-radius: 18rpx;
box-shadow: 0.1rem 0.1rem 0.5rem rgba(0, 0, 0, 0.15);
}
.d_item {
margin: 18rpx 0;
display: inline-block;
width: 179.5rpx;
text-align: center;
font-size: 28rpx;
}
.d_item text {
display: block;
}
.d_date {
color: gray;
}
.d_wind_dir {
margin-top: 32rpx;
}
.d_wind_sc {
color: gray;
}
.footer{
font-size: 28rpx;
color: gray;
text-align: center;
margin-top: 50rpx;
margin-bottom: 18rpx;
}
.js
Page({
/**
* 页面的初始数据
*/
data: {
search_city: '',
imgsrc:100
},
/**
* 根据城市获取天气预报
*/
getWeather(city) {
let that = this
//获取实况天气
wx.request({
url: 'https://free-api.heweather.net/s6/weather/now?key=你后台的key&location=' + city,
success: function(res) {
if (res.data.HeWeather6[0].status == 'unknown location') {
wx.showToast({
title: '抱歉！没有该城市的天气预报',
icon: 'none',
duration: 2000
})
return;
}
console.log(res)
that.setData({
city: city,
tmp: res.data.HeWeather6[0].now.tmp,
imgsrc: res.data.HeWeather6[0].now.cond_code,
wind_dir: res.data.HeWeather6[0].now.wind_dir,
wind_sc: res.data.HeWeather6[0].now.wind_sc,
hum: res.data.HeWeather6[0].now.hum,
pres: res.data.HeWeather6[0].now.pres
})
//获取24小时天气预报
wx.request({
url: 'https://free-api.heweather.net/s6/weather/hourly?key=你后台的key&location=' + city,
success: function(res) {
var arr = res.data.HeWeather6[0].hourly
var hourly = []
for (var i = 0; i < arr.length; i++) {
hourly[i] = {
"imgsrc": arr[i].cond_code,
"tmp": arr[i].tmp,
"time": arr[i].time.substring(11),
"wind_dir": arr[i].wind_dir,
"wind_sc": arr[i].wind_sc
}
}
that.setData({
hourly: hourly
})
var weekArray = new Array("周日", "周一", "周二", "周三", "周四", "周五", "周六");
//获取未来7天天气预报
wx.request({
url: 'https://free-api.heweather.net/s6/weather/forecast?key=你后台的key&location=' + city,
success: function(result) {
//console.log(result)
var arr = result.data.HeWeather6[0].daily_forecast
var daily_forecast = []
for (var i = 0; i < arr.length; i++) {
daily_forecast[i] = {
d_txt: i == 0 ? "今天" : weekArray[new Date(arr[i].date).getDay()],
d_date: arr[i].date.substring(5),
imgsrc_d: arr[i].cond_code_d,
imgsrc_n: arr[i].cond_code_n,
wind_dir: arr[i].wind_dir,
wind_sc: arr[i].wind_sc,
tmp_max: arr[i].tmp_max,
tmp_min: arr[i].tmp_min,
cond_txt_d: arr[i].cond_txt_d
}
}
that.setData({
daily_forecast: daily_forecast
})
}
})
}
})
}
})
},
bindKeyInput(e) {
this.setData({
search_city: e.detail.value
})
},
search() {
this.getWeather(this.data.search_city)
},
/**
* 生命周期函数--监听页面加载
*/
onLoad: function(options) {
this.getWeather("广州")
},
})
.json
{
"usingComponents": {},
"navigationBarTitleText": "天气预报"
}
注意问题（必看）
由于我的项目有用到天气预报的逐小时预报和7天预报，和风天气又必须实名才能获取到此数据，所以请登录和风天气后台进行实名认证
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