如何在appSettings.json中读取字符串数组? [英] How to read a string array in appSettings.json?
问题描述
我的环境是VSCode和NetCore 2.0.
My env is VSCode and NetCore 2.0.
我需要从我的appsetting.json中读取状态代码和几对代码/消息.
I need to read a status code and several pairs of code/message from my appsetting.json.
这是我的appsettings.json文件
This is my appsettings.json file
{
"http":
{
"statuscode": 200
},
"responses":
{
"data": [
{
"code": 1,
"message": "ok"
},
{
"code": 2,
"message": "erro"
}
]
}
}
我正在像下面那样加载配置文件和数据,但是一切都为空:
I'm loading the configuration file and data like below, but everything is null:
private readonly IConfiguration _conf;
const string APPSET_SEC = "responses";
const string APPSET_KEY = "data";
public ValuesController(IConfiguration configuration)
{
_conf = configuration;
var section = _conf.GetSection($"{APPSET_SEC}:{APPSET_KEY}");
var responses = section.Get<string[]>();
var someArray = _conf.GetSection(APPSET_SEC).GetChildren().Select(x => x.Value).ToArray();
}
任何一个响应和someArray为null.字符串数组似乎无效,但看起来像一个有效的Json字符串数组.我需要修改我的appsettings或C#代码以将数据"数组加载到变量中吗?
Either responses and someArray are null. It appears that the string array is not valid but it looks like a valid Json string array. What do I need to modify my appsettings or my C# code to get "data" array loaded into the variable?
我在json文件中尝试了一个更简化的数组
I tryed a more simplificated array in json file
{
"statuscode": 200,
"data": [
{
"code": 1,
"message": "ok"
},
{
"code": 2,
"message": "erro"
}
]
}
使用代码:
var section = _conf.GetSection($"{APPSET_SEC}");
var responses = section.Get<string[]>();
但我仍然没有喜悦
推荐答案
当您尝试将其作为对象数组时,将其作为字符串数组string[]
You are trying to get it as a string array string[]
when it is an object array,
创建一个POCO模型以匹配设置
Create a POCO model to match the setting
public class ResponseSeting {
public int code { get; set; }
public string message { get; set; }
}
并得到一个数组.
因此,给出以下 appsetting.json
{
"http":
{
"statuscode": 200
},
"responses":
{
"data": [
{
"code": 1,
"message": "ok"
},
{
"code": 2,
"message": "erro"
}
]
}
}
响应数据将被提取
var responses = Configuration
.GetSection("responses:data")
.Get<ResponseSeting[]>();
这篇关于如何在appSettings.json中读取字符串数组?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!