ASP.NET 通过拦截器记录错误日志的示例代码_实用技巧_

 /// 
 /// 接口异常捕捉过滤器 /// 
 [AttributeUsage(AttributeTargets.All, AllowMultiple = false, Inherited = true)] public class ApiErrorHandleAttribute : ExceptionFilterAttribute { public override void OnException(HttpActionExecutedContext actionExecutedContext) { base.OnException(actionExecutedContext); actionExecutedContext.Response = GetResponse(actionExecutedContext); } /// 
 /// 捕捉异常后响应方法 /// 
 private HttpResponseMessage GetResponse(HttpActionExecutedContext actionExecutedContext) { var requesthost = actionExecutedContext.ActionContext.Request.RequestUri.ToString();//当前请求的地址，包括ip加接口地址 var method = actionExecutedContext.ActionContext.Request.Method.ToString();//当前请求是POST/GET/PUT/DELETE …… var controller = actionExecutedContext.ActionContext.ActionDescriptor.ControllerDescriptor.ControllerType.FullName;//当前请求的控制器所在全路径：xxx.WebAPI.Controllers.xxxController var action = actionExecutedContext.ActionContext.ActionDescriptor.ActionName; //当前请求的方法 var paramters = actionExecutedContext.ActionContext.ActionArguments; //获取当前请求的参数 var ip = HttpContext.Current.Request.UserHostAddress; LogHelper.Error($"错误信息：URL:{actionExecutedContext.Request.RequestUri},--参数信息：{paramters.ToJson()},--actionExecutedContext.Exception:{actionExecutedContext.Exception.ToJson()}"); var response = new { code = 506, message = $"{actionExecutedContext.Exception.Message},URL:{actionExecutedContext.Request.RequestUri}", ex = actionExecutedContext.Exception }; return JsonHelper.ToHttpResponseMessage(response); } }

 public static class JsonHelper { /// 
 /// 转化为json格式的HttpResponseMessage /// 
 public static HttpResponseMessage ToHttpResponseMessage(object obj) { string str; if (obj is string || obj is char) { str = obj.ToString(); } else { str = obj.ToJson(); } var result = new HttpResponseMessage { Content = new StringContent(str, Encoding.GetEncoding("UTF-8"), "application/json") }; return result; } /// 
 /// 转化为json字符串，默认的时间格式 /// 
 /// 要被转化的对象 /// json字符串 public static string ToJson(this object obj) { return JsonConvert.SerializeObject(obj, new JsonSerializerSettings { ReferenceLoopHandling = ReferenceLoopHandling.Ignore, DateFormatString = "yyyy-MM-dd HH:mm:ss" }); } }