1、自定义异常处理过滤器
代码语言：javascript复制 /// <summary>
/// 自定义异常处理过滤器
/// </summary>
public class CustomExceptionFilterAttribute : ExceptionFilterAttribute
{
public override void OnException(HttpActionExecutedContext actionExecutedContext)
{
var exception = actionExecutedContext.Exception;
if (exception is BusinessException) //业务异常，一般不需记录日志，直接反馈错误信息至前端
{
actionExecutedContext.Response = actionExecutedContext.Request.CreateErrorResponse((HttpStatusCode)exception.HResult, new HttpError(exception.Message));
}
else //未处理异常如数据库访问出错、代码层面异常等，返回错误信息并记录日志
{
actionExecutedContext.Response = actionExecutedContext.Request.CreateErrorResponse(HttpStatusCode.InternalServerError, new HttpError("应用程序发生未知错误"));
Log.Logger.Error("应用程序处理出错：", exception);
}
}
}2、将异常处理过滤器添加至WebAPI过滤器集合
代码语言：javascript复制 public static class WebApiConfig
{
public static void Register(HttpConfiguration config)
{
// Web API configuration and services
// Web API routes
config.MapHttpAttributeRoutes();
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
//config.Formatters.Add(new BsonMediaTypeFormatter());
//config.Filters.Add(new CustomAuthenticationFilter());
config.Formatters.JsonFormatter.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
config.Filters.Add(new CustomExceptionFilterAttribute());
}
}
