捕获请求解析过程中的异常

发布于 2024-10-12 00:31:50 字数 864 浏览 6 评论 0原文

我有一个 ASP.NET Web 服务，请求中的一些字段被定义为枚举。当输入空白或无效值时，响应返回为：

Parameter name: type ---> System.ArgumentException: Must specify valid information for parsing in the string.
   at System.Enum.Parse(Type enumType, String value, Boolean ignoreCase)
   at System.Web.Services.Protocols.ScalarFormatter.FromString(String value, Type type)
   --- End of inner exception stack trace ---
   at System.Web.Services.Protocols.ScalarFormatter.FromString(String value, Type type)
   at System.Web.Services.Protocols.ValueCollectionParameterReader.Read(NameValueCollection collection)
   at System.Web.Services.Protocols.HtmlFormParameterReader.Read(HttpRequest request)
   at System.Web.Services.Protocols.HttpServerProtocol.ReadParameters()
   at System.Web.Services.Protocols.WebServiceHandler.CoreProcessRequest()

是否可以捕获这样的错误并返回基于 XML 的响应？

原文

I have an ASP.NET webservice and some of the fields in the request are defined as enums. When entering a blank or invalid value, the response comes back as:

Parameter name: type ---> System.ArgumentException: Must specify valid information for parsing in the string.
   at System.Enum.Parse(Type enumType, String value, Boolean ignoreCase)
   at System.Web.Services.Protocols.ScalarFormatter.FromString(String value, Type type)
   --- End of inner exception stack trace ---
   at System.Web.Services.Protocols.ScalarFormatter.FromString(String value, Type type)
   at System.Web.Services.Protocols.ValueCollectionParameterReader.Read(NameValueCollection collection)
   at System.Web.Services.Protocols.HtmlFormParameterReader.Read(HttpRequest request)
   at System.Web.Services.Protocols.HttpServerProtocol.ReadParameters()
   at System.Web.Services.Protocols.WebServiceHandler.CoreProcessRequest()

Is it possible to capture errors like this and return an XML based response instead?

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蓝梦月影 2024-10-19 00:31:50

不，ASMX Web 服务无法做到这一点。

当然，您可以使用 WCF 来完成此操作。

当然，如果你的客户端发送了有效的数据那就更好了。您可能想找出为什么他们不这样做。

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累赘 2024-10-19 00:31:50

当然，它看起来像这样：

try
{
    Enum.Parse(Type enumType, String value, Boolean ignoreCase)
}
catch (ArgumentException e)
{
   //Serialise exception information from 'e' into XML
   //(not shown here) and set it as the response
   Response.Write(xmlMessage);
   Response.End();
}

Sure, it would look something like this:

try
{
    Enum.Parse(Type enumType, String value, Boolean ignoreCase)
}
catch (ArgumentException e)
{
   //Serialise exception information from 'e' into XML
   //(not shown here) and set it as the response
   Response.Write(xmlMessage);
   Response.End();
}

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