开发环境 和风天气vs2019及以上版本完整代码下载通过网盘分享的文件c#获取和风天气数据.rar链接: https://pan.baidu.com/s/1YZhmGyV_jpj84416vyEEGw 提取码: abcd--来自百度网盘超级会员v6的分享1、和风天气官网 注册和风天气开发者服务 ~ 和风天气为开发者和企业用户提供了全球天气数据服务并提供了天气API接口天气插件开源天气APP天气SDK等开发工具数据包括灾害预警、实时天气和预报、PM2.5空气质量AQI、台风、潮汐、日出日落、生活指数等。2、建立控制台建立创建项目和凭据记录好你的 API Host和 API key在浏览器中输入下面语句测试https://pn6apytfxe.re.qweatherapi.com/v7/weather/now?location101010100key你自己的API key可见下图完整的c#代码如下using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; //using System; using System.Net.Http; using System.Text.Json; //Install-Package System.Text.Json //using System.Threading.Tasks; namespace WindowsFormsApp1 { public partial class Form1 : Form { // 请替换为你的和风天气 API Key private const string API_KEY 输入你自己的API KEY; // 免费版使用 devapi private const string BASE_URL https://输入你自己的***.qweatherapi.com; //pn6apytfxe.re.qweatherapi.com public Form1() { InitializeComponent(); // 绑定按钮点击事件 btnGetWeather.Click async (sender, e) await GetWeatherAsync(); } private void Form1_Load(object sender, EventArgs e) { } private void Button1_Click(object sender, EventArgs e) { } private async Task GetWeatherAsync() { string cityName txtCity.Text.Trim(); if (string.IsNullOrEmpty(cityName)) { MessageBox.Show(请输入城市名称); return; } // 禁用按钮防止重复点击 btnGetWeather.Enabled false; rtbResult.Clear(); rtbResult.AppendText(正在获取天气...\n); try { // string locationId 101010100; //北京 调试用 // 第一步根据城市名获取城市ID和风天气的 location ID //label1.Text cityName; string locationId await GetCityIdAsync(cityName); if (string.IsNullOrEmpty(locationId)) { rtbResult.AppendText(未找到该城市请检查输入。\n); return; } // 第二步获取实时天气 var nowWeather await GetNowWeatherAsync(locationId); if (nowWeather ! null) { rtbResult.AppendText($ 实时天气 \n); rtbResult.AppendText($温度{nowWeather.Temp}°C\n); rtbResult.AppendText($天气{nowWeather.Text}\n); rtbResult.AppendText($体感温度{nowWeather.FeelsLike}°C\n); rtbResult.AppendText($风向{nowWeather.WindDir}\n); rtbResult.AppendText($风速{nowWeather.WindSpeed} km/h\n); rtbResult.AppendText($湿度{nowWeather.Humidity}%\n); rtbResult.AppendText($更新时间{nowWeather.LastUpdate}\n); } // 可选获取未来3天预报 /* var forecast await GetForecastAsync(locationId); if ((forecast ! null) (forecast.Count() 0)) { rtbResult.AppendText(\n 未来三天预报 \n); foreach (var day in forecast) { rtbResult.AppendText(${day.Date} 白天{day.TextDay}夜间{day.TextNight}{day.TempMin}~{day.TempMax}°C\n); } } */ } catch (Exception ex) { MessageBox.Show($发生错误{ex.Message}, 错误, MessageBoxButtons.OK, MessageBoxIcon.Error); } finally { btnGetWeather.Enabled true; } } // 根据城市名获取城市ID使用和风天气的地理API private async Taskstring GetCityIdAsync(string cityName) { // 创建 HttpClientHandler 实例 HttpClientHandler handler new HttpClientHandler(); // 设置自动解压 gzip 和 deflate handler.AutomaticDecompression System.Net.DecompressionMethods.GZip | System.Net.DecompressionMethods.Deflate; // 使用静态 HttpClient 实例推荐复用 HttpClient _httpClient new HttpClient(handler); string url ${BASE_URL}/geo/v2/city/lookup?location{Uri.EscapeDataString(cityName)}key{API_KEY}; var response await _httpClient.GetAsync(url); response.EnsureSuccessStatusCode(); string json await response.Content.ReadAsStringAsync(); var doc JsonDocument.Parse(json); var root doc.RootElement; if (root.TryGetProperty(code, out var code) code.GetString() 200) { var locations root.GetProperty(location); if (locations.GetArrayLength() 0) { return locations[0].GetProperty(id).GetString(); } } return null; } // 获取实时天气 private async TaskNowWeather GetNowWeatherAsync(string locationId) { // 创建 HttpClientHandler 实例 HttpClientHandler handler new HttpClientHandler(); // 设置自动解压 gzip 和 deflate handler.AutomaticDecompression System.Net.DecompressionMethods.GZip | System.Net.DecompressionMethods.Deflate; // 使用静态 HttpClient 实例推荐复用 HttpClient _httpClient new HttpClient(handler); string url ${BASE_URL}/v7/weather/now?location{locationId}key{API_KEY}; // string url $https://pn6apytfxe.re.qweatherapi.com/v7/weather/now?location101010100keyb184e76042e041acb1157b986ebaee93; // 设置请求头告诉服务器我们发送的是 gzip 压缩的数据 //_httpClient.DefaultRequestHeaders.AcceptEncoding.Add(new System.Net.Http.Headers.StringWithQualityHeaderValue(UTF-8)); // 可以添加其他编码类型 var response await _httpClient.GetAsync(url); response.EnsureSuccessStatusCode(); string json await response.Content.ReadAsStringAsync(); label1.Text 获取网络天气成功; var doc JsonDocument.Parse(json); var root doc.RootElement; if (root.TryGetProperty(code, out var code) code.GetString() 200) { var now root.GetProperty(now); var update root.GetProperty(updateTime).GetString(); return new NowWeather { Temp now.GetProperty(temp).GetString(), Text now.GetProperty(text).GetString(), FeelsLike now.GetProperty(feelsLike).GetString(), WindDir now.GetProperty(windDir).GetString(), WindSpeed now.GetProperty(windSpeed).GetString(), Humidity now.GetProperty(humidity).GetString(), LastUpdate update }; } return null; } // 获取未来3天预报7天预报也可但3天更简洁 /* private async TaskListDailyForecast GetForecastAsync(string locationId) { string url ${BASE_URL}/v7/weather/3d?location{locationId}key{API_KEY}; var response await _httpClient.GetAsync(url); response.EnsureSuccessStatusCode(); string json await response.Content.ReadAsStringAsync(); var doc JsonDocument.Parse(json); var root doc.RootElement; if (root.TryGetProperty(code, out var code) code.GetString() 200) { var daily root.GetProperty(daily); var list new ListDailyForecast(); foreach (var item in daily.EnumerateArray()) { list.Add(new DailyForecast { Date item.GetProperty(fxDate).GetString(), TextDay item.GetProperty(textDay).GetString(), TextNight item.GetProperty(textNight).GetString(), TempMax item.GetProperty(tempMax).GetString(), TempMin item.GetProperty(tempMin).GetString() }); } return list; } return null; } */ } // 辅助类也可以定义在Form1.cs内部 public class NowWeather { public string Temp { get; set; } public string Text { get; set; } public string FeelsLike { get; set; } public string WindDir { get; set; } public string WindSpeed { get; set; } public string Humidity { get; set; } public string LastUpdate { get; set; } } public class DailyForecast { public string Date { get; set; } public string TextDay { get; set; } public string TextNight { get; set; } public string TempMax { get; set; } public string TempMin { get; set; } } }