目录

一 设计原型

二 后台源码

---

一 设计原型

二 后台源码

using Newtonsoft.Json;
using System.Net;
using System.Text;

namespace 获取天气预报
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }


        private void button1_Click(object sender, EventArgs e)
        {
            string url = "http://t.weather.sojson.com/api/weather/city/101091101";
            string content = GetRemoteData(url);
            WaterData waterData = JsonConvert.DeserializeObject<WaterData>(content);
            if (waterData != null)
            {
                date.Text = waterData.date;
                time.Text = waterData.time;

                List<City> cities = new List<City>();
                cities.Add(waterData.cityInfo);
                city.DataSource = cities;

                datas.DataSource = waterData.data.forecast;

                List<Yesterday> Yesterdays = new List<Yesterday>();
                Yesterdays.Add(waterData.data.yesterday);
                yesterday.DataSource = Yesterdays;
            }
        }


        /// <summary>
        /// 请求类
        /// </summary>
        /// <param name="url"></param>
        /// <returns></returns>
        private static string GetRemoteData(string url)
        {
            string HtmlCode = "";
            HttpWebRequest wrequest = (HttpWebRequest)WebRequest.Create(url);
            try
            {
                HttpWebResponse wresponse = (HttpWebResponse)wrequest.GetResponse();
                Stream stream = wresponse.GetResponseStream();
                StreamReader reader = new StreamReader(stream, Encoding.UTF8);
                HtmlCode = reader.ReadToEnd();
                reader.Close();
                wresponse.Close();
            }
            catch
            {
                HtmlCode = "Error";
            }
            return HtmlCode;
        }

    }

    public class WaterData
    {
        public string message { get; set; }
        public int status { get; set; }
        public string date { get; set; }
        public string time { get; set; }
        public City cityInfo { get; set; }
        public Data data { get; set; }
    }



    public class City
    {
        public string city { get; set; }
        public string citykey { get; set; }
        public string parent { get; set; }
        public string updateTime { get; set; }
    }

    public class Data
    {
        public string shidu { get; set; }
        public double pm25 { get; set; }
        public double pm10 { get; set; }
        public string quality { get; set; }
        public string wendu { get; set; }
        public string ganmao { get; set; }
        public List<ForeCast> forecast { get; set; }
        public Yesterday yesterday { get; set; }
    }



    public class ForeCast
    {
        public string date { get; set; }
        public string high { get; set; }
        public string low { get; set; }
        public string ymd { get; set; }
        public string week { get; set; }
        public string sunrise { get; set; }
        public string sunset { get; set; }
        public int aqi { get; set; }
        public string fx { get; set; }
        public string fl { get; set; }
        public string type { get; set; }
        public string notice { get; set; }
    }

    public class Yesterday
    {
        public string date { get; set; }
        public string high { get; set; }
        public string low { get; set; }
        public string ymd { get; set; }
        public string week { get; set; }
        public string sunrise { get; set; }
        public string sunset { get; set; }
        public string aqi { get; set; }
        public string fx { get; set; }
        public string fl { get; set; }
        public string type { get; set; }
        public string notice { get; set; }
    }
}

设计器自动生成源码：

namespace 获取天气预报
{
    partial class Form1
    {
        /// <summary>
        ///  Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        ///  Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        ///  Required method for Designer support - do not modify
        ///  the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            datas = new DataGridView();
            button1 = new Button();
            label1 = new Label();
            date = new TextBox();
            time = new TextBox();
            label2 = new Label();
            city = new DataGridView();
            yesterday = new DataGridView();
            ((System.ComponentModel.ISupportInitialize)datas).BeginInit();
            ((System.ComponentModel.ISupportInitialize)city).BeginInit();
            ((System.ComponentModel.ISupportInitialize)yesterday).BeginInit();
            SuspendLayout();
            // 
            // datas
            // 
            datas.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
            datas.Location = new Point(26, 103);
            datas.Name = "datas";
            datas.RowHeadersWidth = 51;
            datas.Size = new Size(1443, 406);
            datas.TabIndex = 0;
            // 
            // button1
            // 
            button1.Location = new Point(666, 717);
            button1.Name = "button1";
            button1.Size = new Size(94, 29);
            button1.TabIndex = 1;
            button1.Text = "获取天气预报";
            button1.UseVisualStyleBackColor = true;
            button1.Click += button1_Click;
            // 
            // label1
            // 
            label1.AutoSize = true;
            label1.Location = new Point(26, 16);
            label1.Name = "label1";
            label1.Size = new Size(39, 20);
            label1.TabIndex = 2;
            label1.Text = "日期";
            // 
            // date
            // 
            date.Location = new Point(78, 13);
            date.Name = "date";
            date.Size = new Size(267, 27);
            date.TabIndex = 3;
            // 
            // time
            // 
            time.Location = new Point(78, 63);
            time.Multiline = true;
            time.Name = "time";
            time.Size = new Size(267, 27);
            time.TabIndex = 5;
            // 
            // label2
            // 
            label2.AutoSize = true;
            label2.Location = new Point(26, 66);
            label2.Name = "label2";
            label2.Size = new Size(39, 20);
            label2.TabIndex = 4;
            label2.Text = "时间";
            // 
            // city
            // 
            city.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
            city.Location = new Point(351, 13);
            city.Name = "city";
            city.RowHeadersWidth = 51;
            city.Size = new Size(1118, 84);
            city.TabIndex = 6;
            // 
            // yesterday
            // 
            yesterday.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
            yesterday.Location = new Point(27, 518);
            yesterday.Name = "yesterday";
            yesterday.RowHeadersWidth = 51;
            yesterday.Size = new Size(1442, 193);
            yesterday.TabIndex = 7;
            // 
            // Form1
            // 
            AutoScaleDimensions = new SizeF(9F, 20F);
            AutoScaleMode = AutoScaleMode.Font;
            BackColor = SystemColors.InactiveCaption;
            ClientSize = new Size(1481, 743);
            Controls.Add(yesterday);
            Controls.Add(city);
            Controls.Add(time);
            Controls.Add(label2);
            Controls.Add(date);
            Controls.Add(label1);
            Controls.Add(button1);
            Controls.Add(datas);
            MaximizeBox = false;
            MinimizeBox = false;
            Name = "Form1";
            Text = "天气预报";
            ((System.ComponentModel.ISupportInitialize)datas).EndInit();
            ((System.ComponentModel.ISupportInitialize)city).EndInit();
            ((System.ComponentModel.ISupportInitialize)yesterday).EndInit();
            ResumeLayout(false);
            PerformLayout();
        }

        #endregion

        private DataGridView datas;
        private Button button1;
        private Label label1;
        private TextBox date;
        private TextBox time;
        private Label label2;
        private DataGridView city;
        private DataGridView yesterday;
    }
}