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
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?location=101010100&key=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 Task<string> 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 Task<NowWeather> 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?location=101010100&key=b184e76042e041acb1157b986ebaee93";
// 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 Task<List<DailyForecast>> 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 List<DailyForecast>();
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; }
}
}