我创建了几个.net core 2 web应用程序,直到这个才会出现问题。
在IISExpress下运行本地它运行正常但是当我将调试版本部署到服务器上的IIS文件夹时,我遇到了问题。
当我读取配置条目时,找不到它:
_config["MySettings:MyName"];
文件内容:
appsettings.Development.json
{
"Logging": {
"IncludeScopes": false,
"LogLevel": {
"Default": "Trace",
"System": "Information",
"Microsoft": "Information"
}
},
"MySettings": {
"MyName": "JohnDoe"
}
}
appsettings.json
{
"Logging": {
"IncludeScopes": false,
"Debug": {
"LogLevel": {
"Default": "Trace"
}
},
"Console": {
"LogLevel": {
"Default": "Warning"
}
}
}
}
launchSetting.json
{
"iisSettings": {
"windowsAuthentication": false,
"anonymousAuthentication": true,
"iisExpress": {
"applicationUrl": "http://localhost:60668/",
"sslPort": 0
}
},
"profiles": {
"IIS Express": {
"commandName": "IISExpress",
"launchBrowser": true,
"launchUrl": "api/security",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
},
"WebApi.ViewerSecurity": {
"commandName": "Project",
"launchBrowser": true,
"launchUrl": "api/security",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
},
"applicationUrl": "http://localhost:60669/"
}
}
}
如果我复制appsettings.Development.json并重命名为appsettings.Production.json就可以了。
我在prod文件中更改了“MyName”的值并记录了它。是的,从appsettings.Production.json读取。
如何以及为何?生产没有在任何地方定义。
答案 0 :(得分:12)
ConfigurationBuilder
的默认值正在查找appsettings.<EnvironmentName>.json
文件,因此根据您使用的环境,此文件的名称会更改。当您使用IIS Express时,您处于Development
状态,部署应用程序时,您的环境为Production
。这就是您需要appsettings.Production.json
。
当您调试时,有一个名为ASPNETCORE_ENVIRONMENT
的环境变量设置为Development
,而在部署中未设置ASPNETCORE_ENVIRONMENT
,默认值为Production