Weather

public class WeatherModel
    {
        #region 定义成员变量
        private string _temperature = "";
        private string _weather = "";
        private string _wind = "";
        private string _city = "";
        private DateTime _dateStart = DateTime.Now;
        private string _coldPoint = "";
        private string _weatherImagePath = "";
        private string _weatherUrl = "http://www.soso.com/tb.q?cid=tb.tq";   //远程的天气url页面地址
        #endregion

        #region 定义类属性
        /// <summary>
        /// 温度
        /// </summary>
        public string Temperature
        {
            get { return _temperature; }
            set { _temperature = value; }
        }

        /// <summary>
        /// 天气说明
        /// </summary>
        public string Weather
        {
            get { return _weather; }
            set { _weather = value; }
        }

        /// <summary>
        /// 风力
        /// </summary>
        public string Wind
        {
            get { return _wind; }
            set { _wind = value; }
        }

        /// <summary>
        /// 城市
        /// </summary>
        public string City
        {
            get { return _city; }
            set { _city = value; }
        }

        /// <summary>
        /// 起始日期
        /// </summary>
        public DateTime DateStart
        {
            get { return _dateStart; }
            set { _dateStart = value; }
        }

        /// <summary>
        /// 感冒指数
        /// </summary>
        public string ColdPoint
        {
            get { return _coldPoint; }
            set { _coldPoint = value; }
        }

        /// <summary>
        /// 天气的图片路径
        /// </summary>
        public string WeatherImagePath
        {
            get { return _weatherImagePath; }
            set { _weatherImagePath = value; }
        }

        /// <summary>
        /// 读取天气的url地址
        /// </summary>
        public string WeatherUrl
        {
            get { return _weatherUrl; }
            set { _weatherUrl = value; }
        }
        #endregion

        public WeatherModel() { }

        /// <summary>
        /// 要获得天气的城市
        /// </summary>
        /// <param name="city">城市</param>
        public WeatherModel(string city)
        {
            City = city;
        }
    }


    public class WeatherReadData
    {
        #region 定义成员变量
        private string _weatherUrl = "http://www.soso.com/tb.q?cid=tb.tq&cin=";   //远程的天气url页面地址
        #endregion

        #region 定义类属性
        /// <summary>
        /// 读取天气的url地址
        /// </summary>
        public string WeatherUrl
        {
            get { return _weatherUrl; }
            set { _weatherUrl = value; }
        }
        #endregion

        /// <summary>
        /// 获得从当天开始到后2天,共3天的天气情况
        /// </summary>
        /// <param name="city">城市</param>
        public WeatherModel[] ReadThreeDayWeather(string city)
        {
            //url的编码方式:
            //string tmp1 = System.Web.HttpUtility.UrlEncode(city, System.Text.Encoding.GetEncoding("GB2312"));
            //string tmp2 = System.Web.HttpUtility.UrlEncode(city, System.Text.Encoding.UTF8);

            WeatherUrl += "&city=" + HttpUtility.UrlEncode(city, System.Text.Encoding.GetEncoding("GB2312"));
           
            System.Net.WebClient client = new System.Net.WebClient();
            //-------------读取远程网页,将其转换为流
            Stream resStream = null;
            try
            {
                resStream = client.OpenRead(WeatherUrl);
            }
            catch { return null; }
            StreamReader streamReader = new StreamReader(resStream, System.Text.Encoding.Default);
            //---------------------

            StringBuilder strXml = new StringBuilder();
            StringBuilder strBody = new StringBuilder();
            bool isSaveXml = false;
            //读取流数据
            while (!streamReader.EndOfStream)
            {
                string tmp = streamReader.ReadLine();

                #region 读取xml
                if (tmp.Contains("<description>"))
                {
                    isSaveXml = true;
                    strXml.Append("<?xml version=\"1.0\" encoding=\"utf-8\"?>");
                }
                else if (tmp.Contains("</description>"))
                {
                    isSaveXml = false;
                    strXml.Append(tmp);
                }

                if (isSaveXml)
                    strXml.Append(tmp);
                #endregion

                #region 读取body中第1天的天气的数据
                if (tmp.Contains("<body>"))
                {
                    strBody.Append(tmp);
                }
                #endregion
            }

            #region 读取body中的第一个<ul>
            int ulStart = strBody.ToString().IndexOf("<ul>");
            int ulEnd = strBody.ToString().IndexOf("</ul>") + "</ul>".Length;
            string tmpStr = "";

            try
            {
                tmpStr = strBody.ToString().Substring(ulStart, ulEnd - ulStart);
            }
            catch{}

            //在第一个</li>之前加个</img>
            int liStart = tmpStr.IndexOf("</li>");
            tmpStr = tmpStr.Insert(liStart, "</img>");

            //在最前面加上xml说明
            tmpStr = tmpStr.Insert(0, "<?xml version=\"1.0\" encoding=\"utf-8\"?>");
            #endregion

            XmlDocument xmldocFirstDay = new XmlDocument();
            xmldocFirstDay.LoadXml(tmpStr);

            //将字符串转换为xml格式
            XmlDocument xmldoc = new XmlDocument();
            xmldoc.LoadXml(strXml.ToString());

            WeatherModel[] modelArr = new WeatherModel[3];
            modelArr[0] = new WeatherModel();
            modelArr[1] = new WeatherModel();
            modelArr[2] = new WeatherModel();

            #region 获得第1天的天气图片以及第1天的感冒指数
            XmlNodeList nodeListFirst = xmldocFirstDay.SelectNodes("/ul/li");
            //获得图片
            XmlNodeList imgNode = nodeListFirst.Item(0).ChildNodes;
            modelArr[0].WeatherImagePath = imgNode.Item(0).Attributes["src"].InnerText;

            //获得感冒指数
            modelArr[0].ColdPoint = nodeListFirst.Item(1).InnerText.Split("：".ToCharArray())[1];
            #endregion

            #region 获得第2天,第3天的天气图片
            string tmpWeather = strBody.ToString();
            int start = tmpWeather.IndexOf("<div class=\"weather\">") + "<div class=\"weather\">".Length;
            int end = 0;
            tmpWeather = tmpWeather.Substring(start);
            //获得第2天的数据
            start = tmpWeather.IndexOf("<div class=\"weather\">") + "<div class=\"weather\">".Length;
            tmpWeather = tmpWeather.Substring(start);
            //获得第2天的图片
            start = tmpWeather.IndexOf("<img src=\"") + "<img src=\"".Length;
            end = tmpWeather.IndexOf(".png") - 6;
            modelArr[1].WeatherImagePath = tmpWeather.Substring(start, end);

            //获得第3天的数据
            start = tmpWeather.IndexOf("<div class=\"weather\">") + "<div class=\"weather\">".Length;
            tmpWeather = tmpWeather.Substring(start);
            //获得第3天的图片
            start = tmpWeather.IndexOf("<img src=\"") + "<img src=\"".Length;
            end = tmpWeather.IndexOf(".png") - 6;
            modelArr[2].WeatherImagePath = tmpWeather.Substring(start, end);
            #endregion

            #region 获得城市
            XmlNodeList nodeCity = xmldoc.SelectNodes("/description/city");
            modelArr[0].City = nodeCity.Item(0).InnerText;
            modelArr[1].City = nodeCity.Item(0).InnerText;
            modelArr[2].City = nodeCity.Item(0).InnerText;
            #endregion

            #region 日期
            //获得日期
            XmlNodeList nodeDate = xmldoc.SelectNodes("/description/date");
            modelArr[0].DateStart = Convert.ToDateTime(nodeDate.Item(0).InnerText);
            modelArr[1].DateStart = modelArr[0].DateStart.AddDays(1);
            modelArr[2].DateStart = modelArr[0].DateStart.AddDays(2);
            #endregion

            #region 获得天气
            //获得天气
            XmlNodeList nodeData = xmldoc.SelectNodes("/description/data");

            if (nodeData != null && nodeData.Count > 0)
            {
                XmlNodeList weathNodeList = nodeData.Item(0).ChildNodes;   //获得data下的所有子节点
                if (weathNodeList != null && weathNodeList.Count > 0)
                {
                    for (int i = 0; i < weathNodeList.Count; i++)
                    {
                        XmlNodeList dayNodeList = weathNodeList.Item(i).ChildNodes;  //获得today下的所有子节点

                        if (dayNodeList != null && dayNodeList.Count > 0)
                        {
                            modelArr[i].Temperature = dayNodeList.Item(0).InnerText;
                            modelArr[i].Weather = dayNodeList.Item(1).InnerText;
                            modelArr[i].Wind = dayNodeList.Item(2).InnerText;
                        }
                    }
                }
            }
            #endregion

            #region 资源释放
            xmldocFirstDay = null;
            xmldoc = null;
            resStream.Flush();
            resStream.Close();
            resStream.Dispose();
            resStream = null;
            streamReader.Close();
            streamReader.Dispose();
            streamReader = null;
            #endregion

            return modelArr;
        }
    }

调用

public partial class WeatherPage : System.Web.UI.Page
    {
        private string CityName;
        private int TimeType;
        protected void Page_Load(object sender, EventArgs e)
        {
            //城市名称
            if (!String.IsNullOrEmpty(Request.QueryString["CityName"]))
            {
                CityName = Request.QueryString["CityName"];
            }
            //时间
            TimeType = WEB.ProceFlow.ValidatorValueManage.GetIntValue(Request.QueryString["TimeType"]);

            if (!IsPostBack)
            {
                Response.Write(GetWeatherInfo(CityName, TimeType));
                Response.End();
            }
        }

        /// <summary>
        /// 获得天气信息
        /// </summary>
        /// <param name="CityName">城市名称</param>
        /// <param name="TimeType">返回的天气日期，0.今天；1，明天；2，后天</param>
        /// <returns></returns>
        /// Enow.Share.WeatherManage.WeatherModel[] modelArr = read.ReadThreeDayWeather(this.TextBox1.Text);
        /// 返回今天，明天，后天的天气 和TimeType匹配
        private string GetWeatherInfo(string CityName, int TimeType)
        {
            //Server.UrlEncode("杭州")
            string strTemp = "";
            Enow.Share.WeatherManage.WeatherReadData read = new Enow.Share.WeatherManage.WeatherReadData();
            Enow.Share.WeatherManage.WeatherModel[] modelArr = read.ReadThreeDayWeather(CityName);
            if (modelArr == null)
                return "";
            Enow.Share.WeatherManage.WeatherModel model = modelArr[TimeType];

            strTemp += string.Format("<table width='100%' border='0' cellspacing='0' cellpadding='0'><tr><td width='30%' align='center'><img src='{0}' width='40' height='40' /></td><td width='70%' align='left'><strong  class='blue'>{1}：{2}</strong><br />感冒指数：{3}</td></tr></table>",model.WeatherImagePath,model.Weather,model.Temperature,model.ColdPoint);

            return strTemp;
        }
    }

转载于:https://www.cnblogs.com/lonelyofsoul/archive/2013/01/09/weather.html

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