C# 修改AppSetting.json并保存
- 复制appsettings.Development.json内容,将json粘贴为类
{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
}
}
- 生成代码如下
public class Rootobject
{
public Logging Logging { get; set; }
}
public class Logging
{
public Loglevel LogLevel { get; set; }
}
public class Loglevel
{
public string Default { get; set; }
public string MicrosoftAspNetCore { get; set; }
}
- 强类型读取
var config = new ConfigurationBuilder()
.SetBasePath(_basePath)
.AddJsonFile(_appsettingsProductionJson)
.Build();
var o = config.Get<Rootobject>();
注意:这里有个坑,json文件中key是可以带英文.的;如文件中Microsoft.AspNetCore项
但是生成的类字段是没有.的如对应生成类字段 MicrosoftAspNetCore ,直接读取会读不出值
- 使用字串key方式
var config = new ConfigurationBuilder()
.SetBasePath(_basePath)
.AddJsonFile(_appsettingsProductionJson)
.Build();
var p = config["Logging:LogLevel:Microsoft.AspNetCore"];
- 修改配置文件
public bool Write<Rootobject>(Rootobject entity)
{
config["Logging:LogLevel:Microsoft.AspNetCore"]="Information";
var jsonString = File.ReadAllText(Path.Combine(_basePath,_appsettingsProductionJson), Encoding.UTF8);
var jsonObject = JObject.Parse(jsonString);
jsonObject["Logging"]["LogLevel"]["Microsoft.AspNetCore"] = config["Logging:LogLevel:Microsoft.AspNetCore"];
var convertString = Convert.ToString(jsonObject);
File.WriteAllText(Path.Combine(_basePath, _appsettingsProductionJson), convertString);
return true;
}
示例代码:https://github.com/huzuohuyou/DotNet6-Examples/tree/main/ReadWriteAppSettingsJson