我来为你生成一个添加了天气图标、未来一周天气情况并使用 UnoCSS 样式的天气预报程序。
首先,安装需要的依赖:
bash
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bun add unocss
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然后更新 app.ts 文件:
typescript
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import express from 'express'; import fetch from 'node-fetch'; import { createGenerator } from 'unocss'; const app = express(); const port = process.env.PORT || 3000; // 配置 UnoCSS const unocss = createGenerator({ presets: [], rules: [ // 在此处添加自定义规则 ], }); app.use(unocss.middleware()); app.use(express.static('public')); app.get('/weather/:city', async (req, res) => { const city = req.params.city; const apiKey = 'YOUR_API_KEY'; const url = `http://api.openweathermap.org/data/2.5/forecast?q=$${city}&appid=$${apiKey}`; try { const response = await fetch(url); const data = await response.json(); res.json(data); } catch (error) { console.error('Error fetching weather data:', error); res.status(500).json({ error: 'Failed to fetch weather data' }); } }); app.listen(port, () => { console.log(`Server is running at http://localhost:$${port}`); });
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接下来,更新 public/index.html 文件:
html
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<!DOCTYPE html> <html> <head> <title>Weather App</title> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/weather-icons/2.0.12/css/weather-icons.min.css"> <script src="https://cdn.jsdelivr.net/npm/@unocss/runtime"></script> </head> <body class="bg-gray-100 text-center py-10"> <h1 class="text-4xl mb-6">Weather Forecast</h1> <select id="citySelect" class="border p-2 rounded"> <option value="London">London</option> <option value="New York">New York</option> <option value="Tokyo">Tokyo</option> </select> <button id="getWeatherBtn" class="bg-blue-500 text-white px-4 py-2 rounded ml-2">Get Weather</button> <div id="weatherInfo" class="mt-8"> <h2 id="cityName" class="text-2xl"></h2> <div id="currentWeather" class="flex justify-center items-center mt-4"> <i id="weatherIcon" class="wi text-6xl"></i> <p id="temperature" class="text-4xl ml-4"></p> </div> <div id="forecast" class="grid grid-cols-7 gap-4 mt-8"></div> </div> <script> const citySelect = document.getElementById('citySelect'); const getWeatherBtn = document.getElementById('getWeatherBtn'); const cityName = document.getElementById('cityName'); const weatherIcon = document.getElementById('weatherIcon'); const temperature = document.getElementById('temperature'); const forecast = document.getElementById('forecast'); function getWeatherIconClass(iconCode) { // 根据天气图标代码返回相应的 CSS 类名 // 你可以参考 https://erikflowers.github.io/weather-icons/ 添加更多图标 switch (iconCode) { case '01d': return 'wi-day-sunny'; case '01n': return 'wi-night-clear'; case '02d': return 'wi-day-cloudy'; case '02n': return 'wi-night-alt-cloudy'; // ... default: return 'wi-day-sunny'; } } function getDayName(dateString) { const daysOfWeek = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat']; const date = new Date(dateString); return daysOfWeek[date.getDay()]; } getWeatherBtn.addEventListener('click', async () => { const city = citySelect.value; const response = await fetch(`/weather/$${city}`); const data = await response.json(); if (response.ok) { cityName.textContent = data.city.name; const currentData = data.list[0]; const iconCode = currentData.weather[0].icon; weatherIcon.className = `wi $${getWeatherIconClass(iconCode)} text-6xl`; temperature.textContent = `$${Math.round(currentData.main.temp - 273.15)}°C`; forecast.innerHTML = ''; for (let i = 0; i < data.list.length; i += 8) { const forecastData = data.list[i]; const date = getDayName(forecastData.dt_txt); const iconCode = forecastData.weather[0].icon; const temp = Math.round(forecastData.main.temp - 273.15); forecast.innerHTML += ` <div class="bg-white p-4 rounded shadow"> <p class="text-lg">$${date}</p> <i class="wi $${getWeatherIconClass(iconCode)} text-3xl mt-2"></i> <p class="mt-2">${temp}°C</p> </div> `; } } else { cityName.textContent = 'Failed to fetch weather data'; weatherIcon.className = ''; temperature.textContent = ''; forecast.innerHTML = ''; } }); </script> </body> </html>
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在这个更新后的版本中,我们做了以下改进:
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使用 OpenWeatherMap 的 5 天/3 小时天气预报 API 获取未来一周的天气数据。
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添加了天气图标显示,使用了 Weather Icons 库。根据天气状况的图标代码动态设置相应的图标类名。
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使用 UnoCSS 提供样式。通过
class属性直接在 HTML 元素上应用样式类。 -
显示未来一周的天气预报。将获取到的天气数据按日期分组,显示每天的日期、天气图标和温度。
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优化了页面布局和样式,使用 UnoCSS 提供的工具类快速设置样式。
现在,运行 bun run start 启动应用,访问 http://localhost:3000,你将看到一个美观的天气预报页面,显示当前天气状况和未来一周的天气预测。
希望这个示例程序对你有所帮助!你可以在此基础上进一步自定义和扩展,以满足你的具体需求。