ASP.NET Core build a multi-layered site architecture [5.1-WebCore site core configuration]

2020/01/29, ASP.NET Core 3.1, VS2019

Abstract: Based on ASP.NET Core 3.1 WebApi build back-end multi-layer architecture website [5.1-WebCore site core configuration]
unified package site core configuration, cross-domain policy registered, instantiate algorithm snow late scalable to add multi-language support

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This section describes the unified package site core configuration, cross-domain policy registered, instantiate algorithm snow late scalable to add multi-language support

Add Website Profile and cross-domain configuration

In the MS.WebApiapplication appsettings.json, add the following nodes:

"SiteSetting": {
    "WorkerId": 1, //for snowflake workerid
    "DataCenterId": 1, //for snowflake datacenterid
    "LoginFailedCountLimits": 3, //the number of login failed 
    "LoginLockedTimeout": 3 //(minutes) account locked timeout
},
"Startup": {
    "Cors": {
      "AllowOrigins": "http://localhost:8080,http://localhost:8081"
    }
}

After completion, as shown below:

Description:

• WorkerId, DataCenterId two snowflakes algorithm parameters
• LoginFailedCountLimits user limit the number of login failures
• LoginLockedTimeout user is locked, how long can log in again
• AllowOrigins source is allowed cross-domain separated by a comma

SiteSetting site configuration entity class

In the MS.WebCoreAdd Class Library SiteSetting.csclass:

namespace MS.WebCore
{
    public class SiteSetting
    {
        public long WorkerId { get; set; }
        public long DataCenterId { get; set; }
        public int LoginFailedCountLimits { get; set; }
        public int LoginLockedTimeout { get; set; }
    }
}

And wherein the field appsettings.jsoncorresponding, Paste may be used to paste class json

Add Service Registration

In the MS.WebCoreAdd Class Library WebCoreExtensions.csclass:

using MS.Common.IDCode;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using System;

namespace MS.WebCore
{
    public static class WebCoreExtensions
    {
        public const string MyAllowSpecificOrigins = "_myAllowSpecificOrigins";

        /// <summary>
        /// 添加跨域策略，从appsetting中读取配置
        /// </summary>
        /// <param name="services"></param>
        /// <param name="configuration"></param>
        /// <returns></returns>
        public static IServiceCollection AddCorsPolicy(this IServiceCollection services, IConfiguration configuration)
        {

            services.AddCors(options =>
            {
                options.AddPolicy(MyAllowSpecificOrigins,
                builder =>
                {
                    builder
                    .WithOrigins(configuration.GetSection("Startup:Cors:AllowOrigins").Value.Split(','))
                    .AllowAnyHeader()
                    .AllowAnyMethod();
                });
            });
            return services;
        }

        /// <summary>
        /// 注册WebCore服务，配置网站
        /// do other things
        /// </summary>
        /// <param name="services"></param>
        /// <param name="configuration"></param>
        /// <returns></returns>
        public static IServiceCollection AddWebCoreService(this IServiceCollection services, IConfiguration configuration)
        {
            //绑定appsetting中的SiteSetting
            services.Configure<SiteSetting>(configuration.GetSection(nameof(SiteSetting)));

            #region 单例化雪花算法
            string workIdStr = configuration.GetSection("SiteSetting:WorkerId").Value;
            string datacenterIdStr = configuration.GetSection("SiteSetting:DataCenterId").Value;
            long workId;
            long datacenterId;
            try
            {
                workId = long.Parse(workIdStr);
                datacenterId = long.Parse(datacenterIdStr);
            }
            catch (Exception)
            {
                throw;
            }
            IdWorker idWorker = new IdWorker(workId, datacenterId);
            services.AddSingleton(idWorker);

            #endregion
            return services;
        }
    }
}

Description:

• Encapsulates the cross-domain policy AddCorsPolicy
• Binding appsetting in SiteSetting
• Examples of algorithms IdWorker and snow as a single register embodiment (to ensure that only a single global embodiment)

use

In MS.WebApithe application Startup.csclass, ConfigureServices add method in the following code:

//using MS.WebCore;
//添加以上代码至using引用
//注册跨域策略
services.AddCorsPolicy(Configuration);
//注册webcore服务（网站主要配置）
services.AddWebCoreService(Configuration);

After completion of the code is shown below

So far, WebCore core configuration is complete, the project has been the site at this time to support cross-domain configuration, has been read by ioc resolve SiteSetting site configuration and IdWorker generated snowflakes ID

After completion of the project, as shown in FIG.