C# dotnet核心应用程序，如何将appsettings文件构建到输出文件夹

我有一个错误：

Unhandled Exception: System.IO.FileNotFoundException: The configuration file 'appsettings.json' was not found and is not optional. The physical path is '/ONEDRIVE/OneDrive - SE/LuloTV/Azure Search/DemoSearchIndexer/bin/Debug/netcoreapp2.2/appsettings.json'.
   at Microsoft.Extensions.Configuration.FileConfigurationProvider.Load(Boolean reload)
   at Microsoft.Extensions.Configuration.ConfigurationRoot..ctor(IList`1 providers)
   at Microsoft.Extensions.Configuration.ConfigurationBuilder.Build()
   at DemoSearchIndexer.Program.Main(String[] args) in /ONEDRIVE/OneDrive - SE/LuloTV/Azure Search/DemoSearchIndexer/Program.cs:line 16

JSON文件位于源代码目录中，但是，它看起来需要在二进制文件夹中的某个位置找到该文件

在使用dotnet run运行应用程序之前，我执行了dotnet build，假设它会将JSON文件复制到output build文件夹，但它不会

代码如下所示：

using System;
using System.Linq;
using System.Threading;
using Microsoft.Azure.Search;
using Microsoft.Azure.Search.Models;
using Microsoft.Extensions.Configuration;
using Microsoft.Spatial;

namespace DemoSearchIndexer
{
    class Program
    {
        static void Main(string[] args)
        {
            IConfigurationBuilder builder = new ConfigurationBuilder().AddJsonFile("appsettings.json");
            IConfigurationRoot configuration = builder.Build();

            SearchServiceClient serviceClient = CreateSearchServiceClient(configuration);

            string indexName = configuration["SearchIndexName"];

            ISearchIndexClient indexClientForQueries = CreateSearchIndexClient(indexName, configuration);

            RunQueries(indexClientForQueries);

            Console.WriteLine("{0}", "Complete.  Press any key to end application...\n");
            Console.ReadKey();
        }

        private static SearchIndexClient CreateSearchIndexClient(string indexName, IConfigurationRoot configuration)
        {
            string searchServiceName = configuration["SearchServiceName"];
            string queryApiKey = configuration["SearchServiceQueryApiKey"];

            SearchIndexClient indexClient = new SearchIndexClient(searchServiceName, indexName, new SearchCredentials(queryApiKey));
            return indexClient;
        }
        private static SearchServiceClient CreateSearchServiceClient(IConfigurationRoot configuration)
        {
            string searchServiceName = configuration["SearchServiceName"];
            string adminApiKey = configuration["SearchServiceAdminApiKey"];

            SearchServiceClient serviceClient = new SearchServiceClient(searchServiceName, new SearchCredentials(adminApiKey));
            return serviceClient;
        }

        private static void RunQueries(ISearchIndexClient indexClient)
        {
            SearchParameters parameters;
            DocumentSearchResult<Role> results;

            Console.WriteLine("Search the entire index for the term 'Administrador' and return only the RoleName field:\n");

            parameters = new SearchParameters()
                         {
                             Select = new[] { "RoleName" }
                         };

            results = indexClient.Documents.Search<Role>("Administrator", parameters);

            WriteDocuments(results);

            Console.Write("Apply a filter to the index to find roles  with a rolename:Usuario, ");
            Console.WriteLine("and return the hotelId and description:\n");

            parameters = new SearchParameters()
                         {
                             Filter = "RoleName:'Partner')",
                             Select = new[] { "Id", "RoleName" }
                         };

            results = indexClient.Documents.Search<Role>("*", parameters);

            WriteDocuments(results);

            Console.Write("Search the entire index, order by a specific field (Id) ");
            Console.Write("in descending order, take the top two results, and show only rolename and id");


            parameters = new SearchParameters()
                         {
                             OrderBy = new[] { "Id desc" },
                             Select = new[] { "Id", "RoleName" },
                             Top = 2
                         };

            results = indexClient.Documents.Search<Role>("*", parameters);

            WriteDocuments(results);

            Console.WriteLine("Search the role names for the term 'Superadministrator':\n");

            parameters = new SearchParameters()
            {
                SearchFields = new[] { "RoleName" }
            };
            results = indexClient.Documents.Search<Role>("Superadministrator", parameters);

            WriteDocuments(results);
        }

        private static void WriteDocuments(DocumentSearchResult<Role> searchResults)
        {
            foreach (SearchResult<Role> result in searchResults.Results)
            {
                Console.WriteLine(result.Document);
            }

            Console.WriteLine();
        }
    }
}

使用系统；
使用System.Linq；
使用系统线程；
使用Microsoft.Azure.Search；
使用Microsoft.Azure.Search.Models；
使用Microsoft.Extensions.Configuration；
使用Microsoft.Spatial；
命名空间搜索索引器
{
班级计划
{
静态void Main（字符串[]参数）
{
IConfigurationBuilder=new ConfigurationBuilder（）.AddJsonFile（“appsettings.json”）；
IConfigurationRoot配置=builder.Build（）；
SearchServiceClient=CreateSearchServiceClient（配置）；
字符串indexName=配置[“SearchIndexName”]；
ISearchIndexClient IndexClient ForQueries=CreateSearchIndexClient（indexName，配置）；
运行查询（indexClientForQueries）；
Console.WriteLine（“{0}”，“完成。按任意键结束应用程序…\n”）；
Console.ReadKey（）；
}
私有静态SearchIndexClient CreateSearchIndexClient（字符串indexName，IConfigurationRoot配置）
{
字符串searchServiceName=配置[“searchServiceName”]；
字符串QueryAPI键=配置[“SearchServiceQueryAPI键”]；
SearchIndexClient indexClient=新的SearchIndexClient（searchServiceName、indexName、新的SearchCredentials（QueryApKey））；
返回indexClient；
}
专用静态SearchServiceClient CreateSearchServiceClient（IConfigurationRoot配置）
{
字符串searchServiceName=配置[“searchServiceName”]；
字符串adminApiKey=配置[“SearchServiceAdminApiKey”]；
SearchServiceClient serviceClient=新的SearchServiceClient（searchServiceName，新的SearchCredentials（adminApiKey））；
返回服务客户端；
}
专用静态void运行查询（ISearchIndexClient indexClient）
{
搜索参数；
记录搜索结果；
WriteLine（“在整个索引中搜索术语‘Administrator’并仅返回RoleName字段：\n”）；
参数=新的SearchParameters（）
{
Select=new[]{“RoleName”}
};
结果=indexClient.Documents.Search（“管理员”，参数）；
减记文件（结果）；
Write（“对索引应用筛选器以查找角色名为：Usuario”的角色，”；
Console.WriteLine（“并返回hotelId和说明：\n”）；
参数=新的SearchParameters（）
{
Filter=“RoleName:‘合作伙伴’”，
Select=new[]{“Id”，“RoleName”}
};
结果=indexClient.Documents.Search（“*”，参数）；
减记文件（结果）；
Write（“搜索整个索引，按特定字段（Id）排序）”；
Write（“按降序，取前两个结果，只显示rolename和id”）；
参数=新的SearchParameters（）
{
OrderBy=new[]{“Id desc”}，
Select=new[]{“Id”，“RoleName”}，
Top=2
};
结果=indexClient.Documents.Search（“*”，参数）；
减记文件（结果）；
WriteLine（“在角色名称中搜索术语‘超级管理员’：\n”）；
参数=新的SearchParameters（）
{
SearchFields=new[]{“RoleName”}
};
结果=indexClient.Documents.Search（“超级管理员”，参数）；
减记文件（结果）；
}
私有静态无效写文档（DocumentSearchResult searchResults）
{
foreach（searchResults.Results中的SearchResult）
{
Console.WriteLine（结果文件）；
}
Console.WriteLine（）；
}
}
}

您可以向

csproj

文件中添加一个

ItemGroup

，其外观如下：

using System;
using System.Linq;
using System.Threading;
using Microsoft.Azure.Search;
using Microsoft.Azure.Search.Models;
using Microsoft.Extensions.Configuration;
using Microsoft.Spatial;

namespace DemoSearchIndexer
{
    class Program
    {
        static void Main(string[] args)
        {
            IConfigurationBuilder builder = new ConfigurationBuilder().AddJsonFile("appsettings.json");
            IConfigurationRoot configuration = builder.Build();

            SearchServiceClient serviceClient = CreateSearchServiceClient(configuration);

            string indexName = configuration["SearchIndexName"];

            ISearchIndexClient indexClientForQueries = CreateSearchIndexClient(indexName, configuration);

            RunQueries(indexClientForQueries);

            Console.WriteLine("{0}", "Complete.  Press any key to end application...\n");
            Console.ReadKey();
        }

        private static SearchIndexClient CreateSearchIndexClient(string indexName, IConfigurationRoot configuration)
        {
            string searchServiceName = configuration["SearchServiceName"];
            string queryApiKey = configuration["SearchServiceQueryApiKey"];

            SearchIndexClient indexClient = new SearchIndexClient(searchServiceName, indexName, new SearchCredentials(queryApiKey));
            return indexClient;
        }
        private static SearchServiceClient CreateSearchServiceClient(IConfigurationRoot configuration)
        {
            string searchServiceName = configuration["SearchServiceName"];
            string adminApiKey = configuration["SearchServiceAdminApiKey"];

            SearchServiceClient serviceClient = new SearchServiceClient(searchServiceName, new SearchCredentials(adminApiKey));
            return serviceClient;
        }

        private static void RunQueries(ISearchIndexClient indexClient)
        {
            SearchParameters parameters;
            DocumentSearchResult<Role> results;

            Console.WriteLine("Search the entire index for the term 'Administrador' and return only the RoleName field:\n");

            parameters = new SearchParameters()
                         {
                             Select = new[] { "RoleName" }
                         };

            results = indexClient.Documents.Search<Role>("Administrator", parameters);

            WriteDocuments(results);

            Console.Write("Apply a filter to the index to find roles  with a rolename:Usuario, ");
            Console.WriteLine("and return the hotelId and description:\n");

            parameters = new SearchParameters()
                         {
                             Filter = "RoleName:'Partner')",
                             Select = new[] { "Id", "RoleName" }
                         };

            results = indexClient.Documents.Search<Role>("*", parameters);

            WriteDocuments(results);

            Console.Write("Search the entire index, order by a specific field (Id) ");
            Console.Write("in descending order, take the top two results, and show only rolename and id");


            parameters = new SearchParameters()
                         {
                             OrderBy = new[] { "Id desc" },
                             Select = new[] { "Id", "RoleName" },
                             Top = 2
                         };

            results = indexClient.Documents.Search<Role>("*", parameters);

            WriteDocuments(results);

            Console.WriteLine("Search the role names for the term 'Superadministrator':\n");

            parameters = new SearchParameters()
            {
                SearchFields = new[] { "RoleName" }
            };
            results = indexClient.Documents.Search<Role>("Superadministrator", parameters);

            WriteDocuments(results);
        }

        private static void WriteDocuments(DocumentSearchResult<Role> searchResults)
        {
            foreach (SearchResult<Role> result in searchResults.Results)
            {
                Console.WriteLine(result.Document);
            }

            Console.WriteLine();
        }
    }
}

保存最新

我一直在寻找这个问题的答案，我找到的大多数帖子都引用了project.json文件，该文件现在已被弃用，取而代之的是.csproj

<Project>
    <ItemGroup>
        <None Include="appsettings.json" CopyToOutputDirectory="Always" />
    </ItemGroup>
</Project>

appsettings.json是否将CopyToTheOutputDirectory属性设置为CopyIfNewer或CopyAlways？是否希望在bin目录中设置appsettings.json？如果是，则基本上回答是yes@LorenzoIsidori怎样？这是Vs代码，不是visual studio，自visual studio 2017发布以来，

project.json

格式已被弃用多年。我认为它可能只在.NETCore1.0上有效，但在最后一点上我可能弄错了。