异常处理

Question

我有一个REST服务，我想有一个处理异常

我的代码如下一个辅助类：

[WebGet(UriTemplate = "/Test/{param}")] 
public Stream Test(string param) 
{ 
     if (param == "Ok") 
      return Process(param); 
     else 
     { 
      RESTException(System.Net.HttpStatusCode.BadRequest, "Param not ok"); 
      return null; 
     } 
} 


private void RESTException(System.Net.HttpStatusCode httpStatusCode, string message) 
{ 
     OutgoingWebResponseContext response = WebOperationContext.Current.OutgoingResponse; 
     response.StatusCode = httpStatusCode; // or anything you want 
     response.StatusDescription = message; 
} 

我从浏览器中测试，但是当我通过错误的参数，例如

http://myaddress/Service/Test/badparam 

没有在浏览器中显示。

我的代码有什么问题？

Answer 1

我为如下的RESTException，它抛出适当的异常和slsdo表明休息时从浏览器或REST测试客户端提供测试适当的异常信息由REST WCF WebApi

private void RESTException(SelectFault fault, System.Net.HttpStatusCode httpStatusCode) 
    { 
     throw new WebFaultException<string>(fault.ErrorMessage, httpStatusCode); 
    } 

Answer 2

变化

RESTException(System.Net.HttpStatusCode.BadRequest, "Param not ok"); 
return null; 

到

RESTException(System.Net.HttpStatusCode.BadRequest, "Param not ok"); 
return "Param not ok";