如何在Web API项目的日志属性类中实现日志级别的条件？

Question

在我的 Web API 项目中，我创建了一个继承自 ActionFilterAttribute 的 MyFilterAttribute 类。

我已经提到了 HttpMethod GET 的日志消息如下

using System.Net.Http;
using System.Web.Http;
using System.Web.Http.Controllers;
using System.Web.Http.Filters;

namespace Resume
{
    public class MyFilterAttribute : ActionFilterAttribute
    {
        public override void OnActionExecuting(HttpActionContext actionContext)
        {
            if (actionContext.Request.Method == HttpMethod.Get)
            {
                var log = log4net.LogManager.GetLogger(typeof(ApiController));
                log.Info("This is log meassage for GET method");
                log.Warn("This is a warn log message for a GET method");
            }

        }
    }
}

我在 EmployeeController 中的 GET 方法是这样的：

[Route("{eid}")]
[HttpGet]
[MyFilterAttribute]
public HttpResponseMessage GetEmployee(int eid)
  {
     var employee = _unitOfWork.Employee.GetById(eid);
     if (employee != null)
         return Request.CreateResponse(HttpStatusCode.OK, employee);
     else
         return Request.CreateErrorResponse(HttpStatusCode.NotFound, "Employee with Id " + eid + " does not exist");
        }

我在 CompanyController 中的 GET 方法是这样的：

[Route("{cid}")]
[HttpGet]
[MyFilterAttribute]
public HttpResponseMessage GetCompany(int cid)
  {
     var company = _unitOfWork.Company.GetById(eid);
     if (company != null)
         return Request.CreateResponse(HttpStatusCode.OK, company);
     else
         return Request.CreateErrorResponse(HttpStatusCode.NotFound, "company with Id " + cid + " does not exist");
        }

每当向任何控制器发出获取请求时，都会记录两个日志消息。

谁能帮忙提一下以不同日志级别登录不同控制器的条件

Answer 1

您可以为LogLevel 创建一个Enum 然后使用它：

public class MyFilterAttribute : ActionFilterAttribute
{
    public LogLevel LogLevel { get; set; }

    public override void OnActionExecuting(HttpActionContext actionContext)
    {
        if (actionContext.Request.Method == HttpMethod.Get)
        {
            var log = log4net.LogManager.GetLogger(typeof(ApiController));
            if(LogLevel.Verbose)
            {
               log.Info("This is log meassage for GET method");
               log.Warn("This is a warn log message for a GET method");
            }
            if(LogLevel.Info)
                log.Info("This is log meassage for GET method");
            if(LogLevel.Warning)
                 log.Warn("This is a warn log message for a GET method");
        }

    }
}

你的枚举会是这样的：

public enum LogLevel
{
     Information,
     Warning,
     Verbose
} 

将其用于以下操作：

[MyFilterAttribute(LogLevel = LogLevel.Verbose)]
public HttpResponseMessage GetCompany(int cid)
{

希望它能给你一些想法。