using AutoMapper;
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using CommonUtil;
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using EasyCaching.Core;
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using EasyCaching.InMemory;
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using Link.Api.Filters;
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using Link.Common;
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using Microsoft.AspNetCore.Builder;
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using Microsoft.AspNetCore.Diagnostics;
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using Microsoft.AspNetCore.Hosting;
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using Microsoft.AspNetCore.Http;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.Extensions.Configuration;
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using Microsoft.Extensions.DependencyInjection;
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using Steeltoe.Discovery.Client;
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using Swashbuckle.AspNetCore.Swagger;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Net;
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using System.Reflection;
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using System.Text;
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namespace Link.Api
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{
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/// <summary>
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///
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/// </summary>
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public class Startup
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{
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/// <summary>
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///
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/// </summary>
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/// <param name="configuration"></param>
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public Startup(IConfiguration configuration)
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{
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Configuration = configuration;
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}
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/// <summary>
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///
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/// </summary>
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public IConfiguration Configuration { get; }
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/// <summary>
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///
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/// </summary>
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/// <param name="services"></param>
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public void ConfigureServices(IServiceCollection services)
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{
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services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
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services.AddMvc(options =>
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{
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//添加异常过滤捕捉
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options.Filters.Add<ExceptionFilter>();
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//添加操作进行前后过滤
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options.Filters.Add<ActionFilter>();
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});
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//配置Json输出格式
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services.AddMvc().AddJsonOptions(options =>
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{
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options.SerializerSettings.DateFormatString = Constants.DATE_TIME_FORMAT;
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options.SerializerSettings.NullValueHandling = Newtonsoft.Json.NullValueHandling.Include;
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}
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);
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//配置Swagger生成服务
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//services.AddSwaggerGen(c =>
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//{
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// //配置Swagger头部认证说明
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// c.SwaggerDoc(Constants.SWAGGER_NAME, new Info()
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// {
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// Version = Constants.SWAGGER_VERSION,
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// Title = Constants.SWAGGER_TITLE,
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// });
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// //配置Swagger读取的xml文件注释文档
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// var file = System.IO.Directory.EnumerateFiles(AppContext.BaseDirectory, Constants.XML_SEARCH_PATTERN).GetEnumerator();
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// while (file.MoveNext())
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// {
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// c.IncludeXmlComments(file.Current, true);
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// }
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//}
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//);
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//注册业务服务
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var bizServiceDictionary = AssemblyLoad(Constants.SERVICE_LIBRARY_NAME);
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var bizServiceEnumerator = bizServiceDictionary.GetEnumerator();
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while (bizServiceEnumerator.MoveNext())
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{
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var biz = bizServiceEnumerator.Current;
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services.AddTransient(biz.Value, biz.Key);
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}
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//注册AutoMapper映射服务
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services.AddAutoMapper();
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services.AddEasyCaching(option =>
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{
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// use memory cache with a simple way
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option.UseInMemory(Constants.EASY_CACHE_MEMORY_DEFAULT_NAME);
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});
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="app"></param>
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/// <param name="env"></param>
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public void Configure(IApplicationBuilder app, IHostingEnvironment env)
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{
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if (env.IsDevelopment())
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{
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app.UseDeveloperExceptionPage();
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}
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else
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{
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//生产环境下，异常进行捕捉
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app.UseExceptionHandler(options =>
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{
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options.Run(
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async context =>
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{
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context.Response.StatusCode = (int)HttpStatusCode.InternalServerError;
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context.Response.ContentType = TopConstants.CONTENT_TYPE_TEXT_HTML;
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var ex = context.Features.Get<IExceptionHandlerFeature>();
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if (ex != null)
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{
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string err = $"<h1>HttpStatusCode：{context.Response.StatusCode}</h1><h1>Error: {ex.Error.Message}</h1>{ex.Error.StackTrace}";
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await context.Response.WriteAsync(err).ConfigureAwait(false);
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}
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});
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});
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}
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//启用Swagger
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//app.UseSwagger();
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////启用SwaggerUI
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//app.UseSwaggerUI(c =>
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//{
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// c.SwaggerEndpoint(Constants.SWAGGER_JSON_URL, Constants.API_LIBRARY_NAME);
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//}
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//);
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app.UseMvc();
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}
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/// <summary>
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/// Welcome
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/// </summary>
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/// <returns></returns>
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private string Welcome()
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{
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var builder = new StringBuilder();
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builder.AppendLine("Initializing ...");
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builder.AppendLine();
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builder.AppendLine("***************************************************************");
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builder.AppendLine("* *");
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builder.AppendLine("* Welcome To DuoMai.Link *");
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builder.AppendLine("* *");
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builder.AppendLine("***************************************************************");
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builder.AppendLine();
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builder.AppendLine("Start Success ^_^");
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return builder.ToString();
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}
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/// <summary>
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/// 获取程序集中的实现类对应的多个接口
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/// </summary>
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/// <param name="assemblyName">程序集</param>
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private Dictionary<Type, Type> AssemblyLoad(string assemblyName)
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{
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Assembly assembly = Assembly.Load(assemblyName);
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IEnumerable<Type> typeEnumerable = assembly.ExportedTypes;
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//排除基类服务
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IEnumerator<Type> typeEnumerator = typeEnumerable.Where(j => j.IsPublic && j.IsClass && !j.IsAbstract).GetEnumerator();
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Dictionary<Type, Type> result = new Dictionary<Type, Type>();
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while (typeEnumerator.MoveNext())
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{
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Type implementType = typeEnumerator.Current;
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Type interfaceType = implementType.GetInterfaces().First(j => j.Namespace == Constants.ISERVICE_LIBRARY_NAME);
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if (!result.ContainsKey(implementType))
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{
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result.Add(implementType, interfaceType);
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}
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}
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return result;
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}
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}
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}
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