diff --git a/LogStudy.WebApp/Controllers/LogController.cs b/LogStudy.WebApp/Controllers/LogController.cs
new file mode 100644
index 0000000..9b7f2e7
--- /dev/null
+++ b/LogStudy.WebApp/Controllers/LogController.cs
@@ -0,0 +1,54 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Logging;
+
+namespace LogStudy.WebApp.Controllers
+{
+ [Route("api/[controller]/[action]")]
+ [ApiController]
+ public class LogController : ControllerBase
+ {
+ private ILogger logger;
+ public LogController(ILogger<LogController> logger)
+ {
+ this.logger = logger;
+ }
+
+ [HttpGet]
+ [HttpPost]
+ public IActionResult Index()
+ {
+ logger.LogTrace("EventSource 提供程序");
+ logger.LogError(new EventId(222, "EWT测试"), "EWT错误{id}", 222);
+ logger.LogDebug("LogDebug");
+ logger.LogInformation("LogInformation");
+ logger.LogWarning("LogWarning");
+ logger.LogError("LogError");
+ logger.LogCritical("LogCritical");
+
+ return new JsonResult(new { Code=0, Message="日志记录成功" });
+ }
+
+ [HttpGet]
+ [HttpPost]
+ public IActionResult NoDI()
+ {
+ var loggerFactory = new LoggerFactory().AddConsole();
+ var logger2 = loggerFactory.CreateLogger<LogController>();
+
+ logger2.LogTrace("LogTrace");
+ logger2.LogDebug("LogDebug");
+ logger2.LogInformation("LogInformation");
+ logger2.LogWarning("LogWarning");
+ logger2.LogError("LogError");
+ logger2.LogCritical("LogCritical");
+
+
+ return new JsonResult(new { Code = 0, Message = "日志记录成功" });
+ }
+ }
+}
\ No newline at end of file
diff --git a/LogStudy.WebApp/Controllers/ValuesController.cs b/LogStudy.WebApp/Controllers/ValuesController.cs
index b54bca1..125a072 100644
--- a/LogStudy.WebApp/Controllers/ValuesController.cs
+++ b/LogStudy.WebApp/Controllers/ValuesController.cs
@@ -23,10 +23,6 @@ namespace LogStudy.WebApp.Controllers
[HttpGet]
public ActionResult<IEnumerable<string>> Get()
{
- _logger.LogCritical("我是测试");
-
- _logger.LogDebug("我是Debug测试");
-
return new string[] { "value1", "value2" };
}
diff --git a/LogStudy.WebApp/LogStudy.WebApp.csproj b/LogStudy.WebApp/LogStudy.WebApp.csproj
index fe62861..71ab075 100644
--- a/LogStudy.WebApp/LogStudy.WebApp.csproj
+++ b/LogStudy.WebApp/LogStudy.WebApp.csproj
@@ -9,11 +9,15 @@
<PackageReference Include="Microsoft.AspNetCore.App" />
<PackageReference Include="Microsoft.AspNetCore.Razor.Design" Version="2.2.0" PrivateAssets="All" />
<PackageReference Include="Microsoft.Extensions.Logging" Version="2.2.0" />
+ <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="2.2.0" />
+ <PackageReference Include="Microsoft.Extensions.Logging.Configuration" Version="2.2.0" />
<PackageReference Include="Microsoft.Extensions.Logging.Console" Version="2.2.0" />
<PackageReference Include="Microsoft.Extensions.Logging.Debug" Version="2.2.0" />
<PackageReference Include="Microsoft.Extensions.Logging.EventLog" Version="2.2.0" />
<PackageReference Include="Microsoft.Extensions.Logging.EventSource" Version="2.2.0" />
+ <PackageReference Include="Microsoft.Extensions.Logging.Filter" Version="1.1.2" />
<PackageReference Include="Microsoft.Extensions.Logging.TraceSource" Version="2.2.0" />
+ <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="2.2.4" />
</ItemGroup>
</Project>
diff --git a/LogStudy.WebApp/Program.cs b/LogStudy.WebApp/Program.cs
index 876bec1..1226303 100644
--- a/LogStudy.WebApp/Program.cs
+++ b/LogStudy.WebApp/Program.cs
@@ -6,7 +6,10 @@ using System.Threading.Tasks;
using Microsoft.AspNetCore;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Logging.Abstractions;
+using Microsoft.Extensions.Logging.Debug;
namespace LogStudy.WebApp
{
@@ -14,23 +17,65 @@ namespace LogStudy.WebApp
{
public static void Main(string[] args)
{
- CreateWebHostBuilder(args).Build().Run();
+ var host = CreateWebHostBuilder(args).Build();
+
+ //启动检查：使用日志
+ var logger = host.Services.GetRequiredService<ILogger<Program>>();
+ logger.LogInformation("检查数据库连接");
+ logger.LogDebug(new EventId(1000,"事件名"),"检查缓存{id}",222);
+ //少提供一个参数
+ logger.LogInformation("1001","检查MQ{id}{name}",3333);
+
+ host.Run();
}
- public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
- WebHost.CreateDefaultBuilder(args)
- .ConfigureLogging((hostbuildContext, logBuild) => {
- var config = hostbuildContext.Configuration;
- var ev = hostbuildContext.HostingEnvironment;
-
- logBuild
- .AddConsole()
- .AddDebug()
- .AddEventLog()
- .AddEventSourceLogger()
- .AddTraceSource("NetCoreDemo")
- .SetMinimumLevel(LogLevel.Information);
- })
- .UseStartup<Startup>();
+ public static IWebHostBuilder CreateWebHostBuilder(string[] args)
+ {
+ var webBuilder = WebHost.CreateDefaultBuilder(args)
+ //配置日志
+ .ConfigureLogging((hostbuildContext, logBuild) =>
+ {
+ //CreateDefaultBuilder 默认注册了日志组件：
+ //使用appsettings.环境变量.json 的Logging配置节
+ //默认添加了以下提供程序：Console、 Debug、EventSource
+ //详情可以查看源代码
+
+ //本方法ConfigureLogging，重新配置日志
+ //配置信息
+ var config = hostbuildContext.Configuration;
+ //环境变量
+ var ev = hostbuildContext.HostingEnvironment;
+ //注入服务
+ var service=logBuild.Services;
+
+ logBuild
+ //自定义配置信息
+ .AddConfiguration(config.GetSection("Logging"))
+ //添加Console提供程序
+ .AddConsole()
+ //添加Debug提供程序
+ .AddDebug()
+ //添加EventLog提供程序
+ .AddEventLog()
+ //添加EventSourceLogger提供程序:EWT
+ .AddEventSourceLogger()
+ //添加TraceSource提供程序
+ .AddTraceSource("NetCoreDemo")
+ //设置最小默认日志级别
+ .SetMinimumLevel(LogLevel.Information)
+ //添加筛选器：会覆盖上面配置信息
+ .AddFilter("System", LogLevel.Debug) //不指定提供程序，则应用与全部
+ .AddFilter<DebugLoggerProvider>("Microsoft", LogLevel.Trace);//只作用于指定的提供程序 DebugLoggerProvider
+
+ //以下方式，可以使用第三方日志组件，如Nlog、Log4net等
+ //.ClearProviders()
+ //.AddProvider(null)
+
+ })
+ .UseStartup<Startup>();
+
+ return webBuilder;
+ }
+
}
}
diff --git a/LogStudy.WebApp/Startup.cs b/LogStudy.WebApp/Startup.cs
index c8845ee..696ed87 100644
--- a/LogStudy.WebApp/Startup.cs
+++ b/LogStudy.WebApp/Startup.cs
@@ -9,14 +9,34 @@ using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
+using Microsoft.Extensions.Logging.Abstractions;
+using Microsoft.Extensions.Logging.Configuration;
+using Microsoft.Extensions.Logging.Console;
+using System.IO;
namespace LogStudy.WebApp
{
+ /// <summary>
+ /// 使用日志：
+ /// 1、构造函数注入
+ /// 2、使用 LoggerFactory 来创建 ILogger
+ /// </summary>
public class Startup
{
- public Startup(IConfiguration configuration)
+ /// <summary>
+ /// 构建函数注入
+ /// </summary>
+ private readonly ILogger _logger;
+
+ /// <summary>
+ /// 工厂方法创建
+ /// </summary>
+ private readonly ILogger _logger2;
+ public Startup(IConfiguration configuration,ILogger<Startup> logger)
{
Configuration = configuration;
+ _logger=logger;
+ _logger2=GetLoggerFromFactory("Startup");
}
public IConfiguration Configuration { get; }
@@ -24,7 +44,10 @@ namespace LogStudy.WebApp
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
+ _logger.LogInformation("配置服务开始");
services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
+
+ _logger2.LogInformation("配置服务结束");
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
@@ -37,5 +60,14 @@ namespace LogStudy.WebApp
app.UseMvc();
}
+
+ private ILogger GetLoggerFromFactory(string name)
+ {
+ var fac=new LoggerFactory();
+
+ var logger = fac.AddConsole().CreateLogger(name);
+
+ return logger;
+ }
}
}
diff --git a/LogStudy.WebApp/appsettings.Development.json b/LogStudy.WebApp/appsettings.Development.json
index e203e94..331805c 100644
--- a/LogStudy.WebApp/appsettings.Development.json
+++ b/LogStudy.WebApp/appsettings.Development.json
@@ -2,8 +2,8 @@
"Logging": {
"LogLevel": {
"Default": "Debug",
- "System": "Information",
- "Microsoft": "Information"
+ "System": "Debug",
+ "Microsoft": "Debug"
}
}
}
diff --git a/LogStudy.WebApp/appsettings.json b/LogStudy.WebApp/appsettings.json
index def9159..8607097 100644
--- a/LogStudy.WebApp/appsettings.json
+++ b/LogStudy.WebApp/appsettings.json
@@ -1,7 +1,20 @@
{
- "Logging": {
- "LogLevel": {
- "Default": "Warning"
+ "Logging":
+ {
+ "LogLevel":
+ {
+ "Default": "Information",
+ "System": "Information",
+ "Microsoft": "Information"
+ },
+ "Console":
+ {
+ "IncludeScopes": true,
+ "LogLevel": {
+ "Default": "Debug",
+ "System": "Debug",
+ "Microsoft": "Debug"
+ }
}
},
"AllowedHosts": "*"