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6#
楼主 |
发表于 2007-10-5 16:17:25
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- using System;
- using System.Collections;
- using System.ComponentModel;
- using System.Data;
- using System.Diagnostics;
- using System.Net;
- using System.Text;
- using System.IO;
- using System.Web;
- using System.Web.Services;
- namespace WeatherWS
- {
- ///
- /// getCHWeather 的摘要说明。
- ///
- [WebService(Namespace="http://flying.redv.com/monster")]
- public class getCHWeather : System.Web.Services.WebService
- {
- public getCHWeather()
- {
- //CODEGEN: 该调用是 ASP.NET Web 服务设计器所必需的
- InitializeComponent();
- }
- #region 组件设计器生成的代码
- //Web 服务设计器所必需的
- private IContainer components = null;
- ///
- /// 设计器支持所需的方法 - 不要使用代码编辑器修改
- /// 此方法的内容。
- ///
- private void InitializeComponent()
- {
- }
- ///
- /// 清理所有正在使用的资源。
- ///
- protected override void Dispose( bool disposing )
- {
- if(disposing && components != null)
- {
- components.Dispose();
- }
- base.Dispose(disposing);
- }
- #endregion
- [WebMethod(Description="中国各城市(县)天气预报获取服务,可接受一字符串参数（可选的查询方式：·国内城市（县）全名·字首拼音缩写·电话区号·邮政编码,如查询徐州的天气情况可输入'徐州'或'xz'作为参数）")]
- public weatherDataClass getWeather(string strCity)
- {
- weatherDataClass _dsWeather = new weatherDataClass();
- try
- {
- const int maxDay=5;
- string []time = new string[maxDay];//存储日期，从今天开始算起
- string []weather = new string[maxDay];//保存天气情况数据
- string []max = new string[maxDay];//保存最高温度数据
- string []min = new string[maxDay];//保存最低温度数据
- string []wind = new string[maxDay];//保存风向数据
- //发送一个post请求到index.jsp页面以获取城市数据
- Uri uri = new Uri("http://www.weathercn.com/forecastn/forcast/index.jsp?searchname="+System.Web.HttpUtility.UrlEncode(strCity,System.Text.Encoding.GetEncoding("GB2312")));
- WebRequest wreq=WebRequest.Create(uri);
-
- HttpWebResponse wresp=(HttpWebResponse)wreq.GetResponse();
-
- string HTML ="";
- Stream s=wresp.GetResponseStream();
-
- StreamReader objReader = new StreamReader(s,System.Text.Encoding.GetEncoding("GB2312"));
- HTML=objReader.ReadToEnd();
- if(HTML==null||HTML=="")
- return _dsWeather;
- HTML = HTML.ToLower();//全部转换为小写
- if(HTML==null||HTML=="")
- return _dsWeather;
- int head,tail,i;
- //查找城市数据 如果没有找到 则返回一个空的dataset
- head = HTML.IndexOf("查询结果：",0);
- head = HTML.IndexOf("station_name=",head);
- if(head==-1)
- {
- return _dsWeather;
- }
- head = HTML.IndexOf("station_name=",head+1);
- tail = HTML.IndexOf("'",head);
- string strCityData = HTML.Substring(head,tail-head);//城市数据获取
- string href = "http://www.weathercn.com/forecastn/forcast/forecastDetail.jsp?"+strCityData;
- //根据城市数据去查询天气情况
- wreq=WebRequest.Create(href);
- wresp=(HttpWebResponse)wreq.GetResponse();
-
- HTML ="";
- s=wresp.GetResponseStream();
-
- objReader = new StreamReader(s,System.Text.Encoding.GetEncoding("GB2312"));
- HTML=objReader.ReadToEnd();
- if(HTML==null||HTML=="")
- return _dsWeather;
- HTML = HTML.ToLower();//全部转换为小写
- DateTime dtNow = new DateTime();
- dtNow = DateTime.Today;//获取系统当前日期
- dtNow = dtNow.Subtract(TimeSpan.Parse("1"));
- for(i=0;i<maxDay;i++)
- {
- dtNow = dtNow.Add(TimeSpan.Parse("1"));
- time[i] = dtNow.ToShortDateString();//日期数据
- }
- //获取天气情况数据,总共maxDay天的数据
- String date = DateTime.Now.Year.ToString()+"年"+DateTime.Now.Month.ToString()+"月";//当前年月
- head = HTML.IndexOf(date,0);
- head = HTML.IndexOf("",head);
- for(i=0;i<maxDay;i++)
- {
- head = HTML.IndexOf("<td",head);
- head = HTML.IndexOf("<img",head);
- head = HTML.IndexOf("/",head);
- head = HTML.IndexOf("/",head+1);
- tail = HTML.IndexOf("_",head);
- weather[i] = HTML.Substring(head+1,tail-head-1);
- head = HTML.IndexOf("",head);
- }
- //获取近maxDay天温度数据,包括最高温度和最低温度
- for(i=0;i<maxDay;i++)
- {
- head = HTML.IndexOf("max",head);
- head = HTML.IndexOf(">",head);
- tail = HTML.IndexOf("<",head);
- max[i] = HTML.Substring(head+1,tail-head-1);//最高温度
- head = HTML.IndexOf("min",head);
- head = HTML.IndexOf(">",head);
- tail = HTML.IndexOf("<",head);
- min[i] = HTML.Substring(head+1,tail-head-1);//最低温度
- }
- //最近maxDay天的风向数据
- head = HTML.IndexOf("<tr",head);
- for(i=0;i<maxDay;i++)
- {
- head = HTML.IndexOf("class",head);
- head = HTML.IndexOf(">",head);
- tail = HTML.IndexOf("<",head);
- wind[i] = HTML.Substring(head+1,tail-head-1);//风向数据
- }
- //将数据填充到DataSet中去
- DataTable dtWeather = new DataTable();
- dtWeather.Columns.Add("日期");
- dtWeather.Columns.Add("天气");
- dtWeather.Columns.Add("最高温度");
- dtWeather.Columns.Add("最低温度");
- dtWeather.Columns.Add("风力风向");
- for(i=0;i<maxDay;i++)
- {
- DataRow drWeather = dtWeather.NewRow();
- drWeather["日期"] = time[i];
- drWeather["天气"] = weather[i];
- drWeather["最高温度"] = max[i];
- drWeather["最低温度"] = min[i];
- drWeather["风力风向"] = wind[i];
- dtWeather.Rows.Add(drWeather);
- }
- _dsWeather.dsWeather = new DataSet("weather");
- _dsWeather.dsWeather.Tables.Add(dtWeather);
- _dsWeather.dsWeather.AcceptChanges();
- //开始获取其它数据
- //城市具体位置
- /*
- head = HTML.IndexOf("120小时天气预报",0);
- head = HTML.IndexOf("<td",head);
- head = HTML.IndexOf(">",head);
- tail = HTML.IndexOf("<",head);
- //_dsWeather.cityDetail = HTML.Substring(head+1,tail-head-1);
- head = HTML.IndexOf(">",tail);
- tail = HTML.IndexOf("<",head);
- //_dsWeather.cityDetail += HTML.Substring(head+1,tail-head-1);
- //电话区号以及邮政编码
- head = HTML.IndexOf("",tail);
- tail = HTML.IndexOf("",head);
- //_dsWeather.tel = HTML.Substring(head+3,tail-head-3);
- //邮编
- head = HTML.IndexOf("",tail);
- tail = HTML.IndexOf("",head);
- //_dsWeather.zip = HTML.Substring(head+3,tail-head-3);
- */
- //城市简介:
- head = HTML.IndexOf("城市简介:",0);
- tail = HTML.IndexOf("",head);
- _dsWeather.cityDes = HTML.Substring(head+5,tail-head-5);
- return _dsWeather;
- }
- catch(Exception e)
- {
- //DO Something
- return _dsWeather;
- }
- }
- //该类用于保存天气数据
- public class weatherDataClass
- {
- public weatherDataClass()
- {
- tel = zip = cityDetail = cityDes = liveDes = deaDes ="";
- }
- public DataSet dsWeather;//天气数据
- public string tel;//电话区号
- public string zip;//邮政编码
- public string cityDetail;//城市具体位置
- public string cityDes;//城市介绍
- public string liveDes;//生活指数
- public string deaDes;//疾病指数
- }
- }
- }
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发表于 2007-10-5 16:16:07
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