using System;

using System.Collections.Generic;

using System.IO;

using System.Text;

using Microsoft.EntityFrameworkCore;

using Microsoft.EntityFrameworkCore.Design;

using Microsoft.Extensions.Configuration;

namespace Emma.Blog.Data

{

public class BlogContextDesign : IDesignTimeDbContextFactory<BlogContext>

{

public BlogContext CreateDbContext(string[] args)

{

Directory.SetCurrentDirectory("..");//设置当前路径为当前解决方案的路径

string appSettingBasePath = Directory.GetCurrentDirectory() + "/Emma.Blog.Web";//改成你的appsettings.json所在的项目名称

var configBuilder = new ConfigurationBuilder()

.SetBasePath(appSettingBasePath)

.AddJsonFile("appsettings.json")

.Build();

var builder = new DbContextOptionsBuilder<BlogContext>();

builder.UseMySQL(configBuilder.GetConnectionString("MySqlConnection"));

return new BlogContext(builder.Options);

}

}

}