asp.net实现天气接口 报错 远程服务器返回错误: (500) 内部服务器错误。

Question

string str = client.DownloadString("http://www.webxml.com.cn/WebServices/WeatherWebService.asmx/getWeatherbyCityName?theCityName=57494");

[WebException: 远程服务器返回错误: (500) 内部服务器错误。]
System.Net.WebClient.DownloadDataInternal(Uri address, WebRequest& request) +283
System.Net.WebClient.DownloadString(Uri address) +100
System.Net.WebClient.DownloadString(String address) +29
weather.Bnn_Weather.Get_3day_weather(String CityName) in d:\专业操作信息库\WPF\weather\weather\Bnn_Weather.cs:52
weather.WeatherWeb.disp_weather(String city) in d:\专业操作信息库\WPF\weather\weather\WeatherWeb.aspx.cs:56
weather.WeatherWeb.Button1_Click(Object sender, EventArgs e) in d:\专业操作信息库\WPF\weather\weather\WeatherWeb.aspx.cs:64
System.Web.UI.WebControls.Button.OnClick(EventArgs e) +9628722
System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +103
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +35
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1724

Answer 1

服务器内部处理有问题。查看服务器对应API的代码