Appsettings 上的 DbConnection 字符串问题

Posted 2023-03-27

【中文标题】Appsettings 上的 DbConnection 字符串问题

【英文标题】：DbConnection string issue on Appsettings

【发布时间】：2022-01-01 09:44:42

【问题描述】：

有没有人建议如何从同一个appSettings.json 文件中读取 5 个连接字符串？该项目是单片的。

以此为一：

"DbContext": "Server=(localdb)\\MSSQLLocalDB;Initial Catalog=atmwithdrawalstore;Integrated Security=True;"

【参考方案1】：

appsettings.json

....
  "ConnectionStrings": 
    "DefaultConnection": "Data Source=localhost;Initial Catalog=...",
    "Connection1": "Data Source=localhost;Initial Catalog=....",
    "Connection2": "Data Source=..."
  ,
.....

startup.cs

var defaultConnectionString = Configuration.GetConnectionString("DefaultConnection");
var connectionString2 = Configuration.GetConnectionString("Connection2");
 .......           

 services.AddDbContext<DbContext2>(options => options.UseSqlServer(connectionString2));
....
services.AddDbContext<DefaultDbContext>(options => options.UseSqlServer(defaultConnectionString));