C# 获取天气预报（未来15天）

阳光穿透心脏的1/2处 2023-02-25 07:11 13阅读 0赞

参考：[https://blog.csdn.net/zsj777/article/details/102456224][https_blog.csdn.net_zsj777_article_details_102456224]

查看城市ID：[http://www.wendangku.net/doc/461567915a8102d277a22f10-9.html][http_www.wendangku.net_doc_461567915a8102d277a22f10-9.html]

获取指定城市ID的未来15天的天气预报：[http://t.weather.sojson.com/api/weather/city/101180205][http_t.weather.sojson.com_api_weather_city_101180205]

示例代码：

using System;
    using System.Collections.Generic;
    using System.Collections;
    using System.Linq;
    using System.Text;
    using System.Net;
    using System.Threading.Tasks;
    using System.IO;
    using System.Diagnostics;
    using System.Web;
    using Newtonsoft.Json;
    using Newtonsoft.Json.Linq;
    
     city 城市ID：101091006
     public static ArrayList getWeather2(String city)
            {
                ArrayList al = new ArrayList();
                //1.根据城市查询天气
                //城市ID：101091006
                // city = 101091006;
                string url1 = "http://t.weather.sojson.com/api/weather/city/"+ city;
    
                var parameters1 = new Dictionary<string, string>();
    
                //parameters1.Add("cityname", city); //要查询的城市，如：温州、上海、北京
                //parameters1.Add("dtype", ""); //返回数据的格式,xml或json，默认json
    
                string result1 = sendPost(url1, parameters1, "get");
    
                //JsonObject newObj1 = new JsonObject(result1);
                //String errorCode1 = newObj1["error_code"].Value;
                JObject jo = (JObject)JsonConvert.DeserializeObject(result1);
                //JToken record = jo["error_code"];
                String errorCode1 = jo["status"].ToString();
    
                String info = "";
    
                if (errorCode1 == "200")
                {
                    //"20200710"
                    string date = jo["date"].ToString();
                    string year = date.Substring(0, 4);
                    string month = date.Substring(4, 2);
    
                    //Debug.WriteLine("成功");
                    //Debug.WriteLine(newObj1);
                    JToken record = jo["data"];
                    JToken record2 = record["forecast"];
                    JToken[] jArray = record2.ToArray();
    
                    for(int i=0;i< jArray.Length; i++)
                    {
                        ArrayList temp_arr = new ArrayList();
    
                        JToken record3 = jArray[i];                    
                        string time = year + "-" + month + "-" + record3["date"];
                        temp_arr.Add(time);
    
                        string weather = record3["type"]+" "+ record3["low"].ToString().Trim().Replace("低温", "")+ "～"+ record3["high"].ToString().Trim().Replace("高温", "");
                        temp_arr.Add(weather);
    
                        al.Add(temp_arr);
                    }
                }
                else
                {
                    //Debug.WriteLine("失败");
                    // Debug.WriteLine(newObj1["error_code"].Value + ":" + newObj1["reason"].Value);
                }
    
                return al;
            }

[https_blog.csdn.net_zsj777_article_details_102456224]: https://blog.csdn.net/zsj777/article/details/102456224
[http_www.wendangku.net_doc_461567915a8102d277a22f10-9.html]: http://www.wendangku.net/doc/461567915a8102d277a22f10-9.html
[http_t.weather.sojson.com_api_weather_city_101180205]: http://t.weather.sojson.com/api/weather/city/101180205