来源: .NET Core appsettings.json 获取数据库连接字符串_枯叶轮回的博客-CSDN博客
本文主要介绍.NET Core中,通过appsettings.json配置文件获取数据库连接字符串。
1、在项目的根目录中创建appsettings.json文件
{ "MssqlConnectionString": "Server=yourip; Database=yourdbname; User Id=yourusername; Password=yourpassword; Pooling=true;", "Db2ConnectionString": "Database=yourdbname;UserID=yourusername;Password=yourpassword;Server=yourip:yourport", "SomeOtherKey": "SomeOtherValue" }
2、安装Microsoft.Extensions.Configuration.Json的Nuget包
Install-Package Microsoft.Extensions.Configuration.Json -Version 2.2.0
3、添加AppSettingsJson类
using Microsoft.Extensions.Configuration; using System.IO; namespace RutarBackgroundServices.AppsettingsJson { public static class AppSettingsJson { public static string ApplicationExeDirectory() { var location = System.Reflection.Assembly.GetExecutingAssembly().Location; var appRoot = Path.GetDirectoryName(location); return appRoot; } public static IConfigurationRoot GetAppSettings() { string applicationExeDirectory = ApplicationExeDirectory(); var builder = new ConfigurationBuilder() .SetBasePath(applicationExeDirectory) .AddJsonFile("appsettings.json"); return builder.Build(); } } }
4、使用AppSettingsJson获取连接字符串
var appSettingsJson = AppSettingsJson.GetAppSettings(); //方法一 var connectionString = appSettingsJson.GetConnectionString("MssqlConnectionString"); //方法二 var connectionString = appSettingsJson["MssqlConnectionString"];