Flash与ASP.NET结合实现天气预报功能总结

Flash与ASP.NET结合实现天气预报功能总结

方便起见在百度空间也写了一份。

http://hi.baidu.com/guosq/blog/item/709d8df81e927fc2b58f310a.html

第一步：编写ASP.NET代码，获取天气预报数据(JSON)，处理成Flash可识别的格式并写入w.txt，供flash调用。
1. Weather.aspx.cs

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using System;
using System.Configuration;
using System.Collections.Generic;
using System.IO;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net;
using System.Text;

namespace web
{
    public partial class Weather : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            //Response.ContentType = "application/json";
            //Response.ContentType = "application/unicode";
            string cityid = ConfigurationManager.AppSettings["weather_cityid"].ToString();
            //101090501 = 唐山
            /*
             * 唐山：101090501
            根据 下面的接口可获得城市天气情况
            http://www.weather.com.cn/data/sk/101090501.html 
             * {"weatherinfo":{"city":"北京","cityid":"101010100","temp":"10","WD":"西风","WS":"2级","SD":"59%","WSE":"2","time":"11:20","isRadar":"1","Radar":"JC_RADAR_AZ9010_JB"}}
             * 
             * 
            http://www.weather.com.cn/data/cityinfo/101010100.html
             * {"weatherinfo":{"city":"北京","cityid":"101010100","temp1":"13℃","temp2":"5℃","weather":"小雨转阴","img1":"d7.gif","img2":"n2.gif","ptime":"11:00"}}
             * 
             * 
            http://m.weather.com.cn/data/101010100.html   
             * {"weatherinfo":{"city":"北京","city_en":"beijing","date_y":"2011年10月26日","date":"辛卯年","week":"星期三","fchh":"11","cityid":"101010100","temp1":"13℃~5℃","temp2":"17℃~4℃","temp3":"17℃~6℃","temp4":"17℃~6℃","temp5":"18℃~7℃","temp6":"17℃~8℃","tempF1":"55.4℉~41℉","tempF2":"62.6℉~39.2℉","tempF3":"62.6℉~42.8℉","tempF4":"62.6℉~42.8℉","tempF5":"64.4℉~44.6℉","tempF6":"62.6℉~46.4℉","weather1":"小雨转阴","weather2":"多云转晴","weather3":"晴转多云","weather4":"多云转晴","weather5":"晴转多云","weather6":"多云","img1":"7","img2":"2","img3":"1","img4":"0","img5":"0","img6":"1","img7":"1","img8":"0","img9":"0","img10":"1","img11":"1","img12":"99","img_single":"7","img_title1":"小雨","img_title2":"阴","img_title3":"多云","img_title4":"晴","img_title5":"晴","img_title6":"多云","img_title7":"多云","img_title8":"晴","img_title9":"晴","img_title10":"多云","img_title11":"多云","img_title12":"多云","img_title_single":"小雨","wind1":"微风","wind2":"微风","wind3":"微风","wind4":"微风","wind5":"微风","wind6":"微风","fx1":"微风","fx2":"微风","fl1":"小于3级","fl2":"小于3级","fl3":"小于3级","fl4":"小于3级","fl5":"小于3级","fl6":"小于3级","index":"舒适","index_d":"建议着薄型套装或牛仔衫裤等春秋过渡装。年老体弱者宜着套装、夹克衫等。","index48":"温凉","index48_d":"较凉爽，建议着夹衣加薄羊毛衫等春秋服装。体弱者宜着夹衣加羊毛衫。因昼夜温差较大，注意增减衣服。","index_uv":"最弱","index48_uv":"弱","index_xc":"不宜","index_tr":"适宜","index_co":"较舒适","st1":"11","st2":"5","st3":"17","st4":"6","st5":"17","st6":"6","index_cl":"较不宜","index_ls":"不宜","index_ag":"不易发"}}
             * 
             * 
             */
            string url = "http://www.weather.com.cn/data/cityinfo/" + cityid + ".html";
            //返回数据：{"weatherinfo":{"city":"唐山","cityid":"101090501","temp1":"15℃","temp2":"5℃","weather":"晴转阴","img1":"d0.gif","img2":"n2.gif","ptime":"08:00"}}

            //http://www.weather.com.cn/data/sk/101090501.html
            string url1 = "http://www.weather.com.cn/data/sk/" + cityid + ".html";
            //返回数据：{"weatherinfo":{"city":"北京","cityid":"101010100","temp":"10","WD":"西风","WS":"2级","SD":"59%","WSE":"2","time":"11:20","isRadar":"1","Radar":"JC_RADAR_AZ9010_JB"}}



            //System.Net.HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
            string data = GetRequestString(url, 8000, 1, Encoding.UTF8);
            //string arr = data.Split(':');

            CommonJsonModel model = DeSerialize(data);
            string weather = model.GetModel("weatherinfo").GetValue("weather");// return 晴转阴
            string temp = model.GetModel("weatherinfo").GetValue("temp1") +"到"+ model.GetModel("weatherinfo").GetValue("temp2");// return 15℃ - 5℃

            string data1 = GetRequestString(url1, 8000, 1, Encoding.UTF8);
            CommonJsonModel model1 = DeSerialize(data1);
            string wind = model1.GetModel("weatherinfo").GetValue("WD") +" " + model1.GetModel("weatherinfo").GetValue("WS");// return 西风 2级



//2. {"total":0,"data":{"377149574" : 1}} 
//CommonJsonModel model = DeSerialize(json);
//model.GetModel("data").GetValue("377149574") //return 1
            //Response.Write(weather+"|"+temp+"|"+wind);
            //weather=晴转阴&temp=14℃到5℃&wind=西南风 2级

            //weather = Server.UrlEncode(weather);
            //temp = Server.UrlEncode(temp);
            //wind = Server.UrlEncode(wind);
            string result = "weather=" + weather + "&temp=" + temp + "&wind=" + wind;
            //result = Server.UrlEncode(result);


            //写入txt，txt文档在Flash中调用
            string txtFilePath = Server.MapPath("w.txt");
            StreamWriter swr = new StreamWriter(txtFilePath,false,Encoding.UTF8);
            
            swr.Write(result);
            swr.Close();
            swr.Dispose();
            Response.Write(result);
            Response.End();

        }

        public CommonJsonModel DeSerialize(string json)
        {
            return new CommonJsonModel(json);
        }

        #region 获取指定远程网页内容
        /// <summary>
        /// 获取指定远程网页内容
        /// </summary>
        /// <param name="strUrl">所要查找的远程网页地址</param>
        /// <param name="timeout">超时时长设置，一般设置为8000</param>
        /// <param name="enterType">是否输出换行符，0不输出，1输出文本框换行</param>
        /// <param name="EnCodeType">编码方式</param>
        /// <returns></returns>
        ///  也可考虑 static string 

        public string GetRequestString(string strUrl, int timeout, int enterType, Encoding EnCodeType)
        {
            string strResult;
            try
            {
                HttpWebRequest myReq = (HttpWebRequest)HttpWebRequest.Create(strUrl);
                myReq.Timeout = timeout;
                HttpWebResponse HttpWResp = (HttpWebResponse)myReq.GetResponse();
                Stream myStream = HttpWResp.GetResponseStream();
                StreamReader sr = new StreamReader(myStream, EnCodeType);
                StringBuilder strBuilder = new StringBuilder();

                while (-1 != sr.Peek())
                {
                    strBuilder.Append(sr.ReadLine());
                    if (enterType == 1)
                    {
                        strBuilder.Append("\r\n");
                    }
                }
                strResult = strBuilder.ToString();
            }
            catch (Exception err)
            {
                strResult = "请求错误：" + err.Message;
            }
            return strResult;
        }

        #endregion





    }
}
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2. 获取JSON后，需要编写解析JSON的代码，此处新建了两个类clsJson.cs和CommonJsonModel.cs。

clsJson.cs 代码：

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using System;
using System.Collections.Generic;
using System.Text;

namespace web
{
    public class clsJson
    {
        protected string _GetKey(string rawjson)
        {
            if (string.IsNullOrEmpty(rawjson))
                return rawjson;

            rawjson = rawjson.Trim();

            string[] jsons = rawjson.Split(new char[] { ':' });

            if (jsons.Length < 2)
                return rawjson;

            return jsons[0].Replace("\"", "").Trim();
        }

        protected string _GetValue(string rawjson)
        {
            if (string.IsNullOrEmpty(rawjson))
                return rawjson;

            rawjson = rawjson.Trim();

            string[] jsons = rawjson.Split(new char[] { ':' }, StringSplitOptions.RemoveEmptyEntries);

            if (jsons.Length < 2)
                return rawjson;

            StringBuilder builder = new StringBuilder();

            for (int i = 1; i < jsons.Length; i++)
            {
                builder.Append(jsons[i]);

                builder.Append(":");
            }

            if (builder.Length > 0)
                builder.Remove(builder.Length - 1, 1);

            string value = builder.ToString();

            if (value.StartsWith("\""))
                value = value.Substring(1);

            if (value.EndsWith("\""))
                value = value.Substring(0, value.Length - 1);

            return value;
        }

        protected List<string> _GetCollection(string rawjson)
        {
            //[{},{}]

            List<string> list = new List<string>();

            if (string.IsNullOrEmpty(rawjson))
                return list;

            rawjson = rawjson.Trim();

            StringBuilder builder = new StringBuilder();

            int nestlevel = -1;

            int mnestlevel = -1;

            for (int i = 0; i < rawjson.Length; i++)
            {
                if (i == 0)
                    continue;
                else if (i == rawjson.Length - 1)
                    continue;

                char jsonchar = rawjson[i];

                if (jsonchar == '{')
                {
                    nestlevel++;
                }

                if (jsonchar == '}')
                {
                    nestlevel--;
                }

                if (jsonchar == '[')
                {
                    mnestlevel++;
                }

                if (jsonchar == ']')
                {
                    mnestlevel--;
                }

                if (jsonchar == ',' && nestlevel == -1 && mnestlevel == -1)
                {
                    list.Add(builder.ToString());

                    builder = new StringBuilder();
                }
                else
                {
                    builder.Append(jsonchar);
                }
            }

            if (builder.Length > 0)
                list.Add(builder.ToString());

            return list;
        }


    }
}
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CommonJsonModel.cs 代码：

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using System;
using System.Collections.Generic;
using System.Text;
/*
使用方法
public CommonJsonModel DeSerialize(string json)
{
 return new CommonJsonModel(json);
}

超级简单，只要new一个通用对象，把json字符串放进去就行了。

针对上文的3个例子，我给出3种使用方法:
 * 
1. {"total":0}
CommonJsonModel model = DeSerialize(json);
model.GetValue("total") // return 0

2. {"total":0,"data":{"377149574" : 1}} 
CommonJsonModel model = DeSerialize(json);
model.GetModel("data").GetValue("377149574") //return 1


3. {"total":0,"data":{"377149574":[{"cid":"377149574"}]}}
CommonJsonModel model = DeSerialize(json);
model.GetCollection("377149574").GetCollection()[0].GetValue("cid") //return 377149574
这个有点点复杂，
1. 首先377149574代表了一个集合，所以要用model.GetCollection("377149574")把这个集合取出来。
2. 其次这个集合里面包含了很多对象，因此用GetColllection()把这些对象取出来
3. 在这些对象List里面取第一个[0]，表示取了":{"cid":"377149574"}这个对象，然后再用GetValue("cid"）把对象的值取出来。

 */
namespace web
{
    /// <summary>
    /// JSON解析器 
    /// </summary>
    public class CommonJsonModel:clsJson
    {
        //原文参考：　http://www.cnblogs.com/loalongblogs/archive/2011/09/03/2165406.html
        private string rawjson;

        private bool isValue = false;

        private bool isModel = false;

        private bool isCollection = false;

        internal CommonJsonModel(string rawjson)
        {
            this.rawjson = rawjson;

            if (string.IsNullOrEmpty(rawjson))
                throw new Exception("missing rawjson");

            rawjson = rawjson.Trim();

            if (rawjson.StartsWith("{"))
            {
                isModel = true;
            }
            else if (rawjson.StartsWith("["))
            {
                isCollection = true;
            }
            else
            {
                isValue = true;
            }
        }

        public string Rawjson
        {
            get { return rawjson; }
        }

        public bool IsValue()
        {
            return isValue;
        }
        public bool IsValue(string key)
        {
            if (!isModel)
                return false;

            if (string.IsNullOrEmpty(key))
                return false;

            foreach (string subjson in base._GetCollection(this.rawjson))
            {
                CommonJsonModel model = new CommonJsonModel(subjson);

                if (!model.IsValue())
                    continue;

                if (model.Key == key)
                {
                    CommonJsonModel submodel = new CommonJsonModel(model.Value);

                    return submodel.IsValue();
                }
            }

            return false;
        }

        public bool IsModel()
        {
            return isModel;
        }
        public bool IsModel(string key)
        {
            if (!isModel)
                return false;

            if (string.IsNullOrEmpty(key))
                return false;

            foreach (string subjson in base._GetCollection(this.rawjson))
            {
                CommonJsonModel model = new CommonJsonModel(subjson);

                if (!model.IsValue())
                    continue;

                if (model.Key == key)
                {
                    CommonJsonModel submodel = new CommonJsonModel(model.Value);

                    return submodel.IsModel();
                }
            }

            return false;
        }
        public bool IsCollection()
        {
            return isCollection;
        }

        public bool IsCollection(string key)
        {
            if (!isModel)
                return false;

            if (string.IsNullOrEmpty(key))
                return false;

            foreach (string subjson in base._GetCollection(this.rawjson))
            {
                CommonJsonModel model = new CommonJsonModel(subjson);

                if (!model.IsValue())
                    continue;

                if (model.Key == key)
                {
                    CommonJsonModel submodel = new CommonJsonModel(model.Value);

                    return submodel.IsCollection();
                }
            }

            return false;
        }

        /// <summary>
        /// 当模型是对象，返回拥有的key
        /// </summary>
        /// <returns></returns>
        public List<string> GetKeys()
        {
            if (!isModel)
                return null;

            List<string> list = new List<string>();

            foreach (string subjson in base._GetCollection(this.rawjson))
            {
                string key = new CommonJsonModel(subjson).Key;

                if (!string.IsNullOrEmpty(key))
                    list.Add(key);
            }

            return list;
        }

        /// <summary>
        /// 当模型是对象，key对应是值，则返回key对应的值
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public string GetValue(string key)
        {
            if (!isModel)
                return null;

            if (string.IsNullOrEmpty(key))
                return null;

            foreach (string subjson in base._GetCollection(this.rawjson))
            {
                CommonJsonModel model = new CommonJsonModel(subjson);

                if (!model.IsValue())
                    continue;

                if (model.Key == key)
                    return model.Value;
            }

            return null;
        }
        /// <summary>
        /// 模型是对象，key对应是对象，返回key对应的对象
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public CommonJsonModel GetModel(string key)
        {
            if (!isModel)
                return null;

            if (string.IsNullOrEmpty(key))
                return null;

            foreach (string subjson in base._GetCollection(this.rawjson))
            {
                CommonJsonModel model = new CommonJsonModel(subjson);

                if (!model.IsValue())
                    continue;

                if (model.Key == key)
                {
                    CommonJsonModel submodel = new CommonJsonModel(model.Value);

                    if (!submodel.IsModel())
                        return null;
                    else
                        return submodel;
                }
            }

            return null;
        }
        /// <summary>
        /// 模型是对象，key对应是集合，返回集合
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public CommonJsonModel GetCollection(string key)
        {
            if (!isModel)
                return null;

            if (string.IsNullOrEmpty(key))
                return null;

            foreach (string subjson in base._GetCollection(this.rawjson))
            {
                CommonJsonModel model = new CommonJsonModel(subjson);

                if (!model.IsValue())
                    continue;

                if (model.Key == key)
                {
                    CommonJsonModel submodel = new CommonJsonModel(model.Value);

                    if (!submodel.IsCollection())
                        return null;
                    else
                        return submodel;
                }
            }

            return null;
        }

        /// <summary>
        /// 模型是集合，返回自身
        /// </summary>
        /// <returns></returns>
        public List<CommonJsonModel> GetCollection()
        {
            List<CommonJsonModel> list = new List<CommonJsonModel>();

            if (IsValue())
                return list;

            foreach (string subjson in base._GetCollection(rawjson))
            {
                list.Add(new CommonJsonModel(subjson));
            }

            return list;
        }

        /// <summary>
        /// 当模型是值对象，返回key
        /// </summary>
        private string Key
        {
            get
            {
                if (IsValue())
                    return base._GetKey(rawjson);

                return null;
            }
        }
        /// <summary>
        /// 当模型是值对象，返回value
        /// </summary>
        private string Value
        {
            get
            {
                if (!IsValue())
                    return null;

                return base._GetValue(rawjson);
            }
        }
    }
}
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第二步：在Flash中调用w.txt，将变量值传递给动态文本框，文本框实例名分别为txtWeather，txtTemp，txtWind。

在Flash的第一帧中加入代码：

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System.useCodepage = true;//让中文能被识别，不出现乱码
var htmlload= new LoadVars();
htmlload.load("../Weather.aspx")//执行aspx，以更新txt文件内容

var Txtload= new LoadVars();
Txtload.onLoad = function(success) {
if (success) {
    trace("载入成功！");
    trace(Txtload.weather)
    trace(Txtload.temp)
    trace(Txtload.wind)
    txtWeather.text = Txtload.weather;
    txtTemp.text = Txtload.temp;
    txtWind.text = Txtload.wind;
} else {
    trace("载入失败！");
    //gotoAndStop("shibai")
}
};
Txtload.load("../w.txt")
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posted @   泰乐看盘  阅读(604)  评论(0)  编辑  收藏  举报
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