1. 添加引用

在程序包管理器控制台输入：Scaffold-DbContext "Data Source=(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=IP地址)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=服务名称)));User Id=用户名;Password=密码;" Oracle.EntityFrameworkCore -O  Models  -F

生成modelcontext

 3.配置appsettings.json

"ConnectionStrings": {
"OraCon": "Data Source=(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=IP地址)(PORT=1521))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=服务名称)));User Id=用户名;Passwordf=;"
}

配置startup

public Startup(IConfiguration configuration)

        {

            Configuration = configuration;

            var path = Directory.GetCurrentDirectory();

            new ConfigurationBuilder().SetBasePath(path).AddJsonFile("appsettings.json", optional: true, reloadOnChange: true).AddEnvironmentVariables().Build();

        }

public void ConfigureServices(IServiceCollection services)

        {

            services.AddControllersWithViews();

            services.AddSession();

            services.AddDbContext<ModelContext>(opt => opt.UseOracle(Configuration.GetConnectionString("OraCon")));//加载数据库连接

        }

4.配置ef生成的语句的监控日志

在ModelContext

可在输出查看 执行语句

4.ModelDbContext里声明oralce哪个版本，这里用的是11

5.测试使用

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内置ioc容器使用

在contrall配置依赖注入

 start.up里声明生命周期