原文:.Net Core WebApi(3)—NLog

在.Net Core中，微软提供的内置的日志组件没有实现将日志记录到文件、数据库上。
这里使用NLog替代内置的日志组件

1.在项目中引入NuGet包 　  NLog         NLog.Web.AspNetCor   ⒉在项目的根目录中创建NLog配置文件 右击项目“添加”->"Web配置文件"->新建“nlog.config”

 1 <?xml version="1.0" encoding="utf-8" ?>
 2 <nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
 3       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 4      autoReload="true"
 5        internalLogLevel="Warn"
 6        internalLogFile="internal-nlog.txt">
 7   <!-- 要写入的目标 -->
 8   <targets>
 9     <!--将日志写入到文件中-->
10     <target xsi:type="File" name="allfile" fileName="logs/all/nlog-all-${shortdate}.log"
11              layout="${longdate}|${logger}|${uppercase:${level}}|${message} ${exception}" />
12     <target xsi:type="File" name="ownFile-web" fileName="logs/my/nlog-cwiosapi-${shortdate}.log"
13              layout="${longdate}|${logger}|${uppercase:${level}}|${message} ${exception}" />
14     <target xsi:type="Null" name="blackhole" />
15   </targets>
16   <rules>
17     <!--所有日志，包括来自Microsoft的日志-->
18     <logger name="*" minlevel="Trace" writeTo="allfile" />
19     <!--跳过非关键的Microsoft日志，因此只记录自己的日志-->
20     <logger name="Microsoft.*" minlevel="Trace" writeTo="blackhole" final="true" />
21     <logger name="*" minlevel="Trace" writeTo="ownFile-web" />
22   </rules>
23 </nlog>

  3.更改配置文件属性 Configure

1   public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
2 {
3      loggerFactory.AddNLog();//添加NLog
4             //引入Nlog配置文件
5     env.ConfigureNLog("nlog.config");
6 }

 

4.通过注入的方式使用

 1  public class StudentController : Controller
 2     {
 3         
 4         private readonly IStudentServices _service;
 5         private readonly ILogger<StudentController> _logger;
 6         /// <summary>
 7         /// 构造器
 8         /// </summary>
 9         /// <param name="services"></param>
10         /// <param name="logger"></param>
11         public StudentController(IStudentServices services, ILogger<StudentController>   logger)
12         {
13             _service = services;
14             _logger = logger;
15         }
16         #region base
17         /// <summary>
18         /// 添加
19         /// </summary>
20         /// <param name="entity"></param>
21         /// <returns></returns>
22         [HttpPost("AddByService")]
23         public PageResponse<Student> AddByService(Student entity)
24         {
25             _logger.LogInformation("测试111");
26             return _service.Add(entity);
27         }
28         #endregion
29     }

 

5.配置appsettings.json

1 {
2   "Logging": {
3     "LogLevel": {
4       "Default": "Warning"
5     }
6   },
7   "AllowedHosts": "*"
8 }

  6.生成的日志