带有列表的 asp.net 核心 ioptions

Question

我正在尝试从appsettings.json 文件中读取值列表。我可以毫无问题地读取Logging 值，但列表值（即Servers）为空：

appsettings.json：

{
 "Logging": {
      "IncludeScopes": false,
      "LogLevel": {
           "Default": "Debug",
           "System": "Information",
           "Microsoft": "Information"
      }
 },
 "Servers": [
      "SCHVW2K12R2-DB",
      "SCHVW2K12R2-DB\\MSSQL2016",
      "SCHVW2K8R2-DB"
    ]
}

对象类：

public class AppSettingsConfiguration
{
    public Logging Logging { get; set; }
    public Servers Servers { get; set; }
}

//Logging Objects
public class Logging
{
    public bool IncludeScopes { get; set; }
    public LogLevel LogLevel { get; set; }
}
public class LogLevel
{
    public string Default { get; set; }
    public string System { get; set; }
    public string Microsoft { get; set; }
}

//Server Objects
public class Servers
{
    public List<string> Names { get; set; }
}

Answer 1

尝试删除Servers 类并将AppSettingsConfiguration 更改为：

public class AppSettingsConfiguration
{
    public Logging Logging { get; set; }
    public string[] Servers { get; set; }
}

Servers 是一个简单的字符串数组，不是复杂类型。

Answer 2

要使用你原来的类，你可以把你的 json 改成这个。 IMO，这更具可读性。

{
     "Logging": {
          "IncludeScopes": false,
          "LogLevel": {
               "Default": "Debug",
               "System": "Information",
               "Microsoft": "Information"
          }
     },
     "Servers": {
        "Names": [
          "SCHVW2K12R2-DB",
          "SCHVW2K12R2-DB\\MSSQL2016",
          "SCHVW2K8R2-DB"
        ]
     }
}