class WeatherHelper
{ /// <summary>
/// 城市集合字段 /// </summary>
private static Dictionary<string, City> mCities; /// <summary>
/// 城市集合 /// </summary>
public static Dictionary<string, City> Cities
{ get
{ if (mCities == null)
{
LoadCities();
} return mCities;
}
} /// <summary>
/// 加载城市 /// </summary>
private static void LoadCities()
{
mCities = new Dictionary<string, City>();
mCities.Clear();
mCities.Add("101010100", new City() { Code = "101010100", Name = "北京", PinYin = "beijing", FristLetter = "bj" });
mCities.Add("101020100", new City() { Code = "101020100", Name = "上海", PinYin = "shanghai", FristLetter = "sh" });
mCities.Add("101200101", new City() { Code = "101200101", Name = "武汉", PinYin = "wuhai", FristLetter = "wh" });
} /// <summary>
/// 获取城市的天气 /// </summary>
/// <param name="name">城市名称、拼音或首字母</param>
/// <returns></returns>
public static string GetWeather(string name)
{ string result = string.Empty; string cityCode = string.Empty; //获取城市编码
IEnumerable<string> codes = from item in Cities where item.Value != null
&& (item.Value.Name.Equals(name, StringComparison.OrdinalIgnoreCase)
|| item.Value.PinYin.Equals(name, StringComparison.OrdinalIgnoreCase)
|| item.Value.FristLetter.Equals(name, StringComparison.OrdinalIgnoreCase)) select item.Value.Code; if (codes != null && codes.Count() > 0)
{
cityCode = codes.First<string>();
} //http请求，获取天气
if (!string.IsNullOrEmpty(cityCode))
{ string url = "http://www.php.cn/{0}.html";
url = string.Format(url, cityCode);
WebRequest request = HttpWebRequest.Create(url); //超时时间为：2秒
request.Timeout = 2000;
request.Credentials = CredentialCache.DefaultCredentials;
WebResponse response = request.GetResponse();
StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8); string weahterInfo = reader.ReadToEnd(); if (string.IsNullOrEmpty(weahterInfo))
{
result = "暂时没有取到天气数据,请稍后再试";
} else
{
XmlDocument doc = JsonConvert.DeserializeXmlNode(weahterInfo); if (doc != null)
{
XmlNode node = doc.DocumentElement; if (node != null)
{
StringBuilder builder = new StringBuilder();
builder.Append(node["city"].InnerText).Append("\n");
builder.Append(node["date_y"].InnerText).Append(" ").Append(node["week"].InnerText).Append("\n");
builder.Append("今天：").Append("(").Append(node["temp1"].InnerText).Append(")").Append(node["weather1"].InnerText).Append(node["wind1"].InnerText).Append(node["fl1"].InnerText).Append("\n");
builder.Append("24小时穿衣指数:").Append(node["index_d"].InnerText).Append("\n");
builder.Append("明天：").Append("(").Append(node["temp2"].InnerText).Append(")").Append(node["weather2"].InnerText).Append(node["wind2"].InnerText).Append(node["fl2"].InnerText).Append("\n");
builder.Append("48小时穿衣指数:").Append(node["index48_d"].InnerText).Append("\n");
result = builder.ToString();
}
} #region 天气json数据格式 /*
{
"weatherinfo": {
"city": "北京",
"city_en": "beijing",
"date_y": "2013年11月4日",
"date": "",
"week": "星期一",
"fchh": "11",
"cityid": "101010100",
"temp1": "17℃~5℃",
"temp2": "16℃~5℃",
"temp3": "18℃~4℃",
"temp4": "17℃~5℃",
"temp5": "14℃~6℃",
"temp6": "14℃~2℃",
"tempF1": "62.6℉~41℉",
"tempF2": "60.8℉~41℉",
"tempF3": "64.4℉~39.2℉",
"tempF4": "62.6℉~41℉",
"tempF5": "57.2℉~42.8℉",
"tempF6": "57.2℉~35.6℉",
"weather1": "晴转多云",
"weather2": "多云",
"weather3": "多云转晴",
"weather4": "晴转多云",
"weather5": "多云转阴",
"weather6": "阴转晴",
"img1": "0",
"img2": "1",
"img3": "1",
"img4": "99",
"img5": "1",
"img6": "0",
"img7": "0",
"img8": "1",
"img9": "1",
"img10": "2",
"img11": "2",
"img12": "0",
"img_single": "0",
"img_title1": "晴",
"img_title2": "多云",
"img_title3": "多云",
"img_title4": "多云",
"img_title5": "多云",
"img_title6": "晴",
"img_title7": "晴",
"img_title8": "多云",
"img_title9": "多云",
"img_title10": "阴",
"img_title11": "阴",
"img_title12": "晴",
"img_title_single": "晴",
"wind1": "微风",
"wind2": "微风",
"wind3": "微风",
"wind4": "微风",
"wind5": "微风",
"wind6": "北风4-5级",
"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": "4-5级",
"index": "较冷",
"index_d": "建议着大衣、呢外套加毛衣、卫衣等服装。体弱者宜着厚外套、厚毛衣。因昼夜温差较大，注意增减衣服。",
"index48": "冷",
"index48_d": "天气冷，建议着棉服、羽绒服、皮夹克加羊毛衫等冬季服装。年老体弱者宜着厚棉衣、冬大衣或厚羽绒服。",
"index_uv": "中等",
"index48_uv": "弱",
"index_xc": "适宜",
"index_tr": "适宜",
"index_co": "舒适",
"st1": "17",
"st2": "5",
"st3": "17",
"st4": "5",
"st5": "18",
"st6": "6",
"index_cl": "适宜",
"index_ls": "适宜",
"index_ag": "极不易发"
}
} */
#endregion
}
} else
{
result = "没有获取到该城市的天气,请确定输入了正确的城市名称,如\'北京\'或者\'beijing\'或者\'bj\'";
} //返回
return result;
} /// <summary>
/// 内部类：城市 /// </summary>
internal class City
{ /// <summary>
/// 编码 /// </summary>
public string Code { get; set; } /// <summary>
/// 名称 /// </summary>
public string Name { get; set; } /// <summary>
/// 拼音 /// </summary>
public string PinYin { get; set; } /// <summary>
/// 拼音首字母 /// </summary>
public string FristLetter { get; set; }
}
}登入後複製
