How to use the Layui framework to develop a weather forecast application that supports meteorological data display

How to use the Layui framework to develop a weather forecast application that supports meteorological data display

Introduction:
Weather forecast is one of the things people often pay attention to in their daily lives. . With the advent of the mobile Internet era, people are increasingly accustomed to obtaining weather information through mobile applications. This article will introduce how to use the Layui framework to develop a weather forecast application that supports meteorological data display, and provide specific code examples.

1. Build the project structure

1. Create a folder named "weather-app" as the project root directory.

2. Create the following files and folders in the root directory:

   • index.html: The main page of the application.
   • css folder: stores application style files.
   • js folder: stores the JavaScript files of the application.
   • layui folder: related files of Layui framework.

2. Introduce the Layui framework

1. Introduce the relevant files of the Layui framework in the index.html file:

   <link rel="stylesheet" href="layui/css/layui.css">
   <script src="layui/layui.js"></script>

2. Create a div in the html file as the container of the application:

   <div id="weather-app"></div>

3. Create a weather data interface

1. Suppose we There is already a weather data interface named "weatherApi", which can obtain weather data by sending HTTP requests.

2. Define a function in the JavaScript file to obtain weather data:

   function getWeatherData(city, callback) {
     layui.$.ajax({
       url: "weatherApi",
       type: "GET",
       data: { city: city },
       success: function(data) {
         callback(data);
       },
       error: function() {
         console.error("获取天气数据失败");
       }
     });
   }

4. Write a weather forecast application

1. Define a function in the JavaScript file for rendering the interface of the weather forecast application:

   function renderWeatherApp() {
     // 创建一个表单控件
     var form = layui.form;
   
     // 创建一个输入框
     form.on("submit(search)", function(data){
       var city = data.field.city;
       getWeatherData(city, function(data) {
         // 渲染天气数据
         // 比如，将数据填充到一个id为"weather-info"的div中
         layui.$("#weather-info").html(data.weather);
       });
       return false;
     });
   
     // 创建一个按钮
     layui.$("#search-btn").on("click", function() {
       layui.$("#search-form").trigger("submit");
     });
   }

2. Introduce the JavaScript file into the index.html file:

   <script src="js/weather.js"></script>

3. Add a form and a div for displaying weather information in the index.html file:

   <form class="layui-form" id="search-form">
     <div class="layui-form-item">
       <div class="layui-input-inline">
         <input type="text" name="city" required lay-verify="required" placeholder="请输入城市" autocomplete="off" class="layui-input">
       </div>
       <div class="layui-input-inline">
         <button type="submit" class="layui-btn" id="search-btn">搜索</button>
       </div>
     </div>
   </form>
   <div id="weather-info"></div>

4. Add a form in the index.html file for Initialize the JavaScript code of the application:

   <script>
     layui.use("form", function() {
       renderWeatherApp();
     });
   </script>

5. Run the application

1. Open the index.html file in the browser and you will see a weather forecast application interface.
2. Enter the city name and click the search button. The application will send a request to the weather data interface to obtain the weather data of the corresponding city and display the data on the page.

Conclusion:
This article introduces how to use the Layui framework to develop a weather forecast application that supports meteorological data display, and provides specific code examples. By using the weather forecast application written in the Layui framework and JavaScript, weather data can be easily obtained and displayed, allowing users to obtain real-time weather information more conveniently.

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