asp.net core系列 73 Exceptionless+Nlog+Apollo配置中心
作者:互联网
一. 介绍
在一上篇中介绍了Exceptionless的基本使用,这篇主要讲Exceptionless结合Nlog的实现双重日志记录,包括Exceptionles的UI可视化日志以及Nlog的txt文件日志。再是从Apollo配置中心读取配置文件,当系统越庞大越多时,需要配置的参数也越来越多,可以通过使用Apollo配置中心来统一管理,例如:配置数据库连接地址、Exceptionless的对应项目的apikey值,redis连接地址等等所有可配置的参数。
1.1 asp.net core中Apollo配置
打开asp.net core 项目,删除appsettings.json文件默认内容,在添加配置如下所示:
{ "apollo": { "AppId": "100001", "MetaServer": "http://192.168.0.100:8080/", "Env": "Dev", "Meta": { "DEV": "http://192.168.0.100:8080/", "FAT": "http://192.168.0.100:8080/", "UAT": "http://192.168.0.100:8080/", "PRO": "http://192.168.0.100:8080/" } } }
appsettings.json配置对应的Apollo客户端配置中心如下,这里端口8070是Apollo客户端配置界面。端口8080是.net core程序读取Apollo配置地址。Apollo配置中参数都是以key-value的形式存储。
下面是读取Apollo配置文件的关键代码:
安装包如下:
Install-Package Microsoft.Extensions.Configuration -Version 2.2.0 Install-Package Com.Ctrip.Framework.Apollo.Configuration -Version 2.0.3
private static IConfigurationRoot _root = null; /// <summary> /// 获取Apollo的config /// </summary> /// <returns></returns> public static IConfigurationRoot GetRoot() { if (_root != null) { return _root; } //先获取appsettings.json的配置 var config = new ConfigurationBuilder() .SetBasePath(Directory.GetCurrentDirectory()) .AddJsonFile("appsettings.json") .Build(); //连接Apollo string appId = config.GetSection("apollo").GetSection("AppId").Value; string metaServer = config.GetSection("apollo").GetSection("MetaServer").Value; var configuration = new ConfigurationBuilder() .AddApollo(appId, metaServer) // .AddDefault(ConfigFileFormat.Xml) // .AddDefault(ConfigFileFormat.Json) // .AddDefault(ConfigFileFormat.Yml) // .AddDefault(ConfigFileFormat.Yaml) .AddDefault().AddNamespace("application") .Build(); _root = configuration; return _root; }
注意:如果变量configuration 中没有读取到Apollo参数值,可以从configuration 对象的参数中查找返回的异常信息。如果读取成功会缓存一份文件到本地,如下所示:
//下面是从Apollo(AppId:100001)的配置中心获取Key为“ApiKey”的value值: string apiKey = GetRoot().GetSection("ApiKey").Value;
关于Apollo更多资料,包括Apollo服务端部署,参考官方文档:https://github.com/ctripcorp/apollo
1.2 Nlog结合Exceptionles
安装包如下:
Install-Package Exceptionless.NLog Install-Package NLog.Web.AspNetCore
在Nlog的基础上,结合Exceptionles,关键代码如下(也可尝试通过配置文件实现(https://github.com/exceptionless/Exceptionless.Net/tree/master/src/Platforms/Exceptionless.NLog):
/// <summary> /// 返回Nlog.Logger /// </summary> /// <returns></returns> public Logger GetExceptionlessLogger() { var config = new LoggingConfiguration(); var exceptionlessTarget = new ExceptionlessTarget(); //读取Apploo配置的Exceptionless地址 string apiKey = ConfigHelper.GetRoot().GetSection("ApiKey").Value; string serverUrl = ConfigHelper.GetRoot().GetSection("ServerUrl")?.Value; exceptionlessTarget.ApiKey = apiKey; exceptionlessTarget.ServerUrl = serverUrl; exceptionlessTarget.Layout = "${longdate} | ${callsite} | ${level} | ${message}"; exceptionlessTarget.Name = "exceptionless"; //添加exceptionless的Target对象 config.AddTarget("exceptionless", exceptionlessTarget); config.LoggingRules.Add(new LoggingRule("*", global::NLog.LogLevel.Error, exceptionlessTarget)); LogManager.Configuration = config; return LogManager.GetCurrentClassLogger(); } /// <summary> /// Nlog.Logger对象 /// </summary> private Logger _logger { get { return N.NLogBuilder.ConfigureNLog("Config\\NLog.config").GetCurrentClassLogger(); } } /// <summary> /// 带有Exceptionless的Nlog.Logger对象 /// </summary> private Logger _exceptionlessLogger { get { ExceptionlessHelper helper = new ExceptionlessHelper(); return helper.GetExceptionlessLogger(); } }
//记录错误日志 public void Error<T>(IFormatProvider formatProvider, T value) { _logger.Error(formatProvider, value); _exceptionlessLogger.Error(formatProvider, value); }
标签:core,asp,Exceptionless,配置,GetSection,Nlog,Apollo,config 来源: https://www.cnblogs.com/MrHSR/p/11580545.html