调用WebService获取数据

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以下调用方法，以调用苏州天气接口为例。

一、后台请求服务

方法一、C#后台，通过构建Soap请求接口数据

//获取天气详细信息 public JsonResult GetWeatherDetails(string dataType,string cityName) { //构造soap请求信息 StringBuilder soap = new StringBuilder(); soap.Append("<?xml version=\"1.0\" encoding=\"utf-8\"?>"); soap.Append("<soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">"); soap.Append("<soap:Body>"); if (cityName != null) { soap.Append("<" + dataType + " xmlns =\"http://www.sz121.com/opapi\">"); soap.Append("<str>" + cityName + "</str>"); soap.Append("<sid></sid>"); soap.Append("</" + dataType + ">"); } else { soap.Append("<" + dataType + " xmlns =\"http://www.sz121.com/opapi\" />"); } soap.Append("</soap:Body>"); soap.Append("</soap:Envelope>"); //发起请求 Uri uri = new Uri("http://www.sz121.com/qxj/webservice/opapi.asmx"); WebRequest webRequest = WebRequest.Create(uri); webRequest.ContentType = "text/xml; charset=utf-8"; webRequest.Method = "POST"; using (Stream requestStream = webRequest.GetRequestStream()) { byte[] paramBytes = Encoding.UTF8.GetBytes(soap.ToString()); requestStream.Write(paramBytes, , paramBytes.Length); } //响应 string strWebData = string.Empty; WebResponse webResponse = webRequest.GetResponse(); using (StreamReader myStreamReader = new StreamReader(webResponse.GetResponseStream(), Encoding.UTF8)) { strWebData = myStreamReader.ReadToEnd(); } var results = new { result = strWebData, }; return Json(results, JsonRequestBehavior.AllowGet); }

方法二、直接使用VS添加服务引用

① 右击项目添加服务引用

②点击高级

③添加Web引用

④输入url地址，修改web引用名，点击添加引用

⑤调用代码

public string getWeather() { com.sz121.www.WeatherWebService s = new com.sz121.www.WeatherWebService(); string CityName = "苏州"; string result = s.getWeatherbyCityName(CityName); return result.ToString(); }

二、前端进行解析