Question

我按照此链接中的说明进行操作

https://dev.mysql.com/doc/dev/connector-net/html/connector-net-x-devapi-reference.htm

如下所示。（Program.cs文件）

using MySql.XDevAPI;
using MySql.XDevAPI.Common;
using MySql.XDevAPI.CRUD;
using System;
using Microsoft.EntityFrameworkCore;

namespace consoleApp
{
    public  class Program
    {
        public static void Main(string[] args)
        {
            // string schemaName = "world_x";
            string schemaName = "sakila";

            string connectionString = "server=localhost;port=3306;uid=username;password=";    
            Session session = MySQLX.GetSession(connectionString);
            Schema schema = session.GetSchema(schemaName);

            // Use the collection 'customer'
            var myCollection = schema.GetCollection("customer");
            var docParams = new DbDoc(new { name1 = "MARY", _id1 = "1" });

            // Find a document
            DocResult foundDocs = myCollection.Find("first_name = :name1|| store_id = :_id1").Bind(docParams).Execute();

            while (foundDocs.Next())
            {
                Console.WriteLine(foundDocs.Current["Name"]);
                Console.WriteLine(foundDocs.Current["_id"]);
            }
        }
    }
}

还有ConsoleApp.csproj文件

    <Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>netcoreapp1.1</TargetFramework>
  </PropertyGroup>
  <ItemGroup>
    <PackageReference Include="Google.Protobuf" Version="3.3.0" />
    <PackageReference Include="MySql.Data" Version="8.0.8-dmr" />
    <PackageReference Include="MySql.Data.EntityFrameworkCore" Version="8.0.8-dmr" />
    <PackageReference Include="MySql.Data.EntityFrameworkCore.Design" Version="8.0.8-dmr" />
  </ItemGroup>
</Project>

appsettings.json文件

{
"ConnectionStrings":
 {
    "SampleConnection": "server=localhost;userid=username;pwd=;port=3306;database=sakila;sslmode=none;"
 }
}

首先使用简单的控制台应用程序而不是网络来简化错误

但毕竟我不断收到以下错误

=============================================== ======================

dotnet build
Microsoft (R) Build Engine version 15.1.1012.6693
Copyright (C) Microsoft Corporation. All rights reserved.

Program.cs(1,13): error CS0234: The type or namespace name 'XDevAPI' does not exist in the namespace 'MySql' (are you missing an assembly reference?) [/home/filePath/consoleApp/consoleApp.csproj]
Program.cs(2,13): error CS0234: The type or namespace name 'XDevAPI' does not exist in the namespace 'MySql' (are you missing an assembly reference?) [/home/filePath/consoleApp/consoleApp.csproj]
Program.cs(3,13): error CS0234: The type or namespace name 'XDevAPI' does not exist in the namespace 'MySql' (are you missing an assembly reference?) [/home/filePath/consoleApp/consoleApp.csproj]

Build FAILED.

Program.cs(1,13): error CS0234: The type or namespace name 'XDevAPI' does not exist in the namespace 'MySql' (are you missing an assembly reference?) [/home/filePath/consoleApp/consoleApp.csproj]
Program.cs(2,13): error CS0234: The type or namespace name 'XDevAPI' does not exist in the namespace 'MySql' (are you missing an assembly reference?) [/home/filePath/consoleApp/consoleApp.csproj]
Program.cs(3,13): error CS0234: The type or namespace name 'XDevAPI' does not exist in the namespace 'MySql' (are you missing an assembly reference?) [/home/filePath/consoleApp/consoleApp.csproj]
    0 Warning(s)
    3 Error(s)

Time Elapsed 00:00:02.00

=============================================== ======================

我有什么遗失或者我没有安装或者什么？！我真的需要帮助来弄清楚出了什么问题。谢谢！

如何从netcore成功连接到MySQL。 ASP C＃在Ubuntu 16.04上

0 个答案: