How to use the Layui framework to develop a weather reporting application that supports instant weather warnings

How to use the Layui framework to develop a weather report application that supports real-time weather warnings

Introduction:
Weather has a huge impact on people's daily lives. Being able to quickly obtain real-time weather warnings is crucial for taking preventive measures in advance. This article will introduce how to use the Layui framework to develop a weather report application that can obtain weather warning information in real time.

1. Introduction to Layui Framework
Layui is a simple, easy-to-use, lightweight and flexible front-end UI framework. It is simple to use and provides a variety of commonly used components, such as forms, tables, pop-up windows, etc., reducing the complexity and cumbersomeness of front-end development. In this project we will use the Layui framework to build the front-end page.

2. Weather Forecast Interface
In order to obtain weather forecast information, we need to call an interface that provides real-time weather data. Here we choose to use the Xinzhi Weather API interface. First, we need to register an account on the Xinzhi Weather official website and create an application for calling the weather interface to obtain the developer key. Then, we can use the following code to obtain weather forecast information:

var key = "your_key"; // 替换成你的开发者key
var city = "北京"; // 替换成你要查询的城市
$.ajax({
  url: 'https://api.seniverse.com/v3/weather/now.json?key=' + key + '&location=' + city + '&language=zh-Hans&unit=c',
  dataType: 'jsonp',
  success: function(result) {
    console.log(result.results[0].now.text);
  }
});

This code will call the Xinzhi Weather API interface based on the given city and developer key, and return the weather forecast information in the result.

3. Page layout
In the weather report application, we need an input box for the user to enter city information, a button for querying the weather forecast of the city, and a button for displaying the weather forecast information. Area.

<div class="layui-container">
    <div class="layui-row">
        <div class="layui-col-md3"></div>
        <div class="layui-col-md6">
            <div class="layui-form-item">
                <label class="layui-form-label">城市</label>
                <div class="layui-input-inline">
                    <input type="text" id="city" autocomplete="off" class="layui-input">
                </div>
                <div class="layui-input-inline">
                    <button class="layui-btn" id="search">查询</button>
                </div>
            </div>
            <div class="layui-form-item">
                <label class="layui-form-label">天气预报</label>
                <div class="layui-input-block">
                    <textarea id="weather" class="layui-textarea" readonly></textarea>
                </div>
            </div>
        </div>
        <div class="layui-col-md3"></div>
    </div>
</div>

The above code uses Layui's grid system to divide the page into 12 columns, achieving a uniform layout in three columns. Through input boxes and buttons, we can realize the function of users entering a city to query weather forecast. Through text boxes, we can display weather forecast information.

4. Page interaction
Next, we need to use JavaScript code to implement the interaction logic of the page. We can achieve the function of obtaining weather forecast information by clicking the query button, and then display the results in the text box.

layui.use('form', function(){
    var form = layui.form;
    
    // 监听查询按钮点击事件
    form.on('submit(search)', function(data){
        var city = data.field.city; // 获取城市

        // 调用心知天气API获取天气预报信息
        $.ajax({
            url: 'https://api.seniverse.com/v3/weather/now.json?key=' + key + '&location=' + city + '&language=zh-Hans&unit=c',
            dataType: 'jsonp',
            success: function(result) {
                var weather = result.results[0].now.text; // 获取天气预报信息
                $("#weather").val(weather); // 将天气预报信息展示到文本框中
            },
            error: function() {
                layer.msg('查询失败'); // 展示错误提示
            }
        });

        return false;
    });
});

When using the Layui framework, we need to use the form module to listen for button click events. When the query button is clicked, city information is obtained, and the Xinzhi Weather API interface is called to obtain weather forecast information. After successfully obtaining the weather forecast information, display it in the text box. If the query fails, an error message will be displayed.

Conclusion:
By using the Layui framework and the Xinzhi Weather API interface, we can develop a simple weather report application to achieve the function of instantly obtaining weather warning information and displaying it to users. I hope this article can help you quickly get started using the Layui framework to develop weather applications.

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