asp.net实现根据城市获取天气预报的方法

本文实例讲述了asp.net实现根据城市获取天气预报的方法。，具体如下：

public void GetWetheaerByCity(string cityName) {  string city = cityName;  string mycity = HttpUtility.UrlEncode(city, System.Text.Encoding.GetEncoding("GB2312"));  System.Net.HttpWebRequest request = (System.Net.HttpWebRequest)System.Net.WebRequest.Create("http://www.sina.com/index.php?city=" + cityName);  //HttpWebRequest 对象 获取GetResponse 转换成HttpWebResponse  System.Net.HttpWebResponse response = request.GetResponse() as System.Net.HttpWebResponse;  //通过HttpWebResponse response.GetResponseStream()获取输出流  Stream str = response.GetResponseStream();  StreamReader reader = new StreamReader(str, System.Text.Encoding.GetEncoding("GB2312"));  string weathhtml = reader.ReadToEnd();  str.Close();  reader.Close();}

希望本文所述对大家asp.net程序设计有所帮助。