import tkinter as tk from tkinter import ttk, messagebox import threading import requests class WeatherApp: def __init__(self, root): self.root = root self.root.title("🌤 天气查询小工具") self.root.geometry("520x480") self.root.resizable(False, False) self.root.configure(bg="#f0f4f8") self.build_ui() def build_ui(self): # 标题 title = tk.Label(self.root, text="🌤 天气查询", font=("Microsoft YaHei", 18, "bold"), fg="#1565c0", bg="#f0f4f8") title.pack(pady=12) # 输入区 input_frame = tk.Frame(self.root, bg="#f0f4f8") input_frame.pack(pady=5) tk.Label(input_frame, text="城市名：", font=("Microsoft YaHei", 11), bg="#f0f4f8").grid(row=0, column=0, padx=5) self.city_entry = tk.Entry(input_frame, width=18, font=("Microsoft YaHei", 11)) self.city_entry.grid(row=0, column=1, padx=5) self.city_entry.insert(0, "北京") self.city_entry.bind("", lambda e: self.start_query()) self.query_btn = tk.Button(input_frame, text="🔍 查询", command=self.start_query, bg="#1976d2", fg="white", font=("Microsoft YaHei", 10, "bold"), width=8, relief="flat", cursor="hand2") self.query_btn.grid(row=0, column=2, padx=8) # 状态提示 self.status_label = tk.Label(self.root, text="输入城市名后点击查询", font=("Microsoft YaHei", 9), fg="#777", bg="#f0f4f8") self.status_label.pack(pady=3) # 结果展示区 result_frame = tk.Frame(self.root, bg="#f0f4f8") result_frame.pack(fill="both", expand=True, padx=20, pady=8) self.result_text = tk.Text(result_frame, height=14, width=56, font=("Microsoft YaHei", 11), bg="white", fg="#333", relief="groove", bd=2, wrap="word", state="disabled") self.result_text.pack(fill="both", expand=True) # 底部说明 tip = tk.Label(self.root, text="数据来源：Open-Meteo（免费，无需 API Key）", font=("Microsoft YaHei", 8), fg="#999", bg="#f0f4f8") tip.pack(side="bottom", pady=5) # ---------- 查询逻辑 ---------- def start_query(self): city = self.city_entry.get().strip() if not city: messagebox.showwarning("提示", "请输入城市名！") return # 禁用按钮，防止重复点击 self.query_btn.config(state="disabled", text="查询中…") self.status_label.config(text=f"正在查询「{city}」…", fg="#1976d2") # 后台线程执行网络请求，避免阻塞 GUI threading.Thread(target=self.query_weather, args=(city,), daemon=True).start() def query_weather(self, city): try: # 1. 地理编码：城市名 → 经纬度 geo_url = "https://geocoding-api.open-meteo.com/v1/search" geo_params = {"name": city, "count": 1, "language": "zh"} geo_resp = requests.get(geo_url, params=geo_params, timeout=8) geo_resp.raise_for_status() geo_data = geo_resp.json() if "results" not in geo_data or not geo_data["results"]: self.finish_query("❌ 未找到该城市，请检查名称是否正确。", is_error=True) return loc = geo_data["results"][0] lat, lon = loc["latitude"], loc["longitude"] display_name = loc.get("name", city) # 2. 查询当前天气 weather_url = "https://api.open-meteo.com/v1/forecast" weather_params = { "latitude": lat, "longitude": lon, "current_weather": "true", "timezone": "auto", } w_resp = requests.get(weather_url, params=weather_params, timeout=8) w_resp.raise_for_status() w_data = w_resp.json() cw = w_data.get("current_weather") if not cw: self.finish_query("⚠️ 未能获取到天气数据，请稍后重试。", is_error=True) return # 3. 整理结果 temp = cw.get("temperature", "暂未获取") wind = cw.get("windspeed", "暂未获取") wind_dir = cw.get("winddirection", "") time_str = cw.get("time", "") weather_code = cw.get("weathercode", -1) desc = self.weather_code_to_text(weather_code) result = ( f"📍 城市：{display_name}\n" f"🕒 更新时间：{time_str}\n" f"{'─' * 36}\n" f"🌡 温度：{temp} °C\n" f"☁️ 天气：{desc}\n" f"💨 风速：{wind} km/h\n" f"🧭 风向：{wind_dir}°\n" f"{'─' * 36}\n" f"📌 数据来源：Open-Meteo 免费接口" ) self.finish_query(result, is_error=False) except requests.exceptions.Timeout: self.finish_query("⏰ 请求超时，请检查网络后重试。", is_error=True) except requests.exceptions.ConnectionError: self.finish_query("🌐 网络连接失败，请检查网络。", is_error=True) except requests.exceptions.RequestException as e: self.finish_query(f"⚠️ 请求异常：{e}", is_error=True) except (KeyError, ValueError) as e: self.finish_query(f"⚠️ 数据解析异常：{e}", is_error=True) except Exception as e: self.finish_query(f"⚠️ 未知错误：{e}", is_error=True) def finish_query(self, text, is_error=False): """在主线程中更新界面（线程安全）""" def update(): self.result_text.config(state="normal") self.result_text.delete("1.0", tk.END) self.result_text.insert("1.0", text) if is_error: self.result_text.config(fg="#c62828") self.status_label.config(text="查询失败", fg="#c62828") else: self.result_text.config(fg="#2e7d32") self.status_label.config(text="查询完成 ✓", fg="#2e7d32") self.result_text.config(state="disabled") self.query_btn.config(state="normal", text="🔍 查询") self.root.after(0, update) @staticmethod def weather_code_to_text(code): """将 Open-Meteo 天气代码转为中文描述""" mapping = { 0: "晴朗 ☀️", 1: "大部晴朗 🌤", 2: "局部多云 ⛅", 3: "阴天 ☁️", 45: "有雾 🌫", 48: "雾凇 🌫", 51: "小毛毛雨 🌦", 53: "中毛毛雨 🌦", 55: "大毛毛雨 🌧", 61: "小雨 🌧", 63: "中雨 🌧", 65: "大雨 🌧", 71: "小雪 🌨", 73: "中雪 🌨", 75: "大雪 ❄️", 80: "小阵雨 🌦", 81: "中阵雨 🌧", 82: "强阵雨 ⛈", 95: "雷暴 ⛈", 96: "雷暴伴小冰雹 ⛈", 99: "雷暴伴大冰雹 ⛈", } return mapping.get(code, f"未知天气（代码 {code}）") if __name__ == "__main__": root = tk.Tk() app = WeatherApp(root) root.mainloop()