.net core 2.0
使用db first 方式生成 表 和context
PM 控制台运行命令出错
Scaffold-DbContext "Host=localhost;Database=mydatabase;Username=myuser;Password=mypassword" Npgsql.EntityFrameworkCore.PostgreSQL
说找不到什么引用,找半天,有人说用dotnet ef 命令可用
,https://github.com/npgsql/Npgsql.EntityFrameworkCore.PostgreSQL/issues/190
需要使用
EF Core .NET Command-line Tools工具
https://docs.microsoft.com/en-us/ef/core/miscellaneous/cli/dotnet
需要安装包
Install-Package Microsoft.EntityFrameworkCore.Tool
Install-Package Npgsql.EntityFrameworkCore.PostgreSQL
Install-Package Npgsql.EntityFrameworkCore.PostgreSQL.Design
项目文件 .csprog
需添加配置,DotNetCliToolReference
参考:https://docs.microsoft.com/en-us/ef/core/miscellaneous/cli/dotnet
<Project Sdk="Microsoft.NET.Sdk"> <PropertyGroup> <TargetFramework>netcoreapp2.0</TargetFramework> </PropertyGroup> <ItemGroup> <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="2.0.2" /> <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="2.0.1" /> <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL.Design" Version="1.1.1" /> </ItemGroup> <ItemGroup> <DotNetCliToolReference Include="Microsoft.EntityFrameworkCore.Tools.DotNet" Version="2.0.2" /> </ItemGroup> </Project>
注意引用的版本号,和本机的不一定一样,要匹配,不懂就装个最新的
Install-Package Microsoft.EntityFrameworkCore.Tools -Version 2.0.2
完成安装配置后,在项目目录执行
dotnet ef dbcontext scaffold "Host=localhost;Database=mydatabase;Username=myuser;Password=mypassword" Npgsql.EntityFrameworkCore.PostgreSQL
生成代码