113 lines
5.1 KiB
C#
113 lines
5.1 KiB
C#
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using System;
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using Hncore.Infrastructure.Autofac;
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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 Newtonsoft.Json;
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namespace Hncore.Infrastructure.WebApi
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{
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/// <summary>
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/// 服务集合对象(可以理解为内置的依赖注入容器)功能扩展类
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/// </summary>
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///
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public static class ServiceCollectionExtend
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{
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/// <summary>
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/// 通用初始化方法(被各个微服务项目所引用)
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/// </summary>
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/// <param name="services">服务集合对象</param>
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/// <param name="configuration">配置信息对象</param>
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/// <param name="version">.net core兼容版本</param>
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/// <param name="serviceOption">服务自定义选项对象</param>
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/// <returns>服务提供者对象</returns>
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///
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public static IServiceProvider Init(this IServiceCollection services, IConfiguration configuration,
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CompatibilityVersion version, ServiceOption serviceOption = null)
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{
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//启用选项配置服务
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services.AddOptions();
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//将配置信息对象以单例模式添加到服务集合中
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services.AddSingleton(configuration);
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// services.AddCors();
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var mvcbuilder = services
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.AddMvc(options =>
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{
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options.EnableEndpointRouting = false; //关闭终端点路由
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if (serviceOption != null && serviceOption.UseGlobalManageAuthFilter)
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{
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//如果配置并传递了自定义选项中的全局授权过滤器，就将全局授权过滤器添加到MVC全局过滤器链中让其生效
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options.Filters.Add(new ManageAuthAttribute());
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GlobalData.UseGlobalManageAuthFilter = true;
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}
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else
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{
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GlobalData.UseGlobalManageAuthFilter = false;
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}
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})
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.SetCompatibilityVersion(version) //设置.net core兼容版本号
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.AddJsonOptions(options =>
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{
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//使用NewtonsoftJson插件，替换掉系统默认提供的JSON插件
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options.SerializerSettings.ContractResolver =
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new Newtonsoft.Json.Serialization.DefaultContractResolver();
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//定义日期格式化策略
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options.SerializerSettings.DateFormatHandling = DateFormatHandling.MicrosoftDateFormat;
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options.SerializerSettings.DateTimeZoneHandling = DateTimeZoneHandling.Local;
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//定义循环引用处理策略(就是要序列化的对象类A中引用了B，B引用了C……转了一圈儿之后又直接或间接引用回了A，就称为循环引用)
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options.SerializerSettings.ReferenceLoopHandling = ReferenceLoopHandling.Ignore;
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//序列化或反序列化时，可接受的日期时间字符串格式
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options.SerializerSettings.DateFormatString = "yyyy-MM-dd HH:mm:ss";
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if (serviceOption != null && serviceOption.IgnoreJsonNullValue)
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{
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//如果配置并传递了自定义选项中的忽略空值选项，就在操作JSON时忽略掉空值数据
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//忽略掉空值的意思就是如果对象中的某个属性值为null，它将不会出现在最终序列化后的JSON字符串中
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options.SerializerSettings.NullValueHandling = NullValueHandling.Ignore;
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}
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});
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services.AddApiVersioning(option =>
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{
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//设置API版本信息
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option.ReportApiVersions = true; //在向客户端响应的响应头中显示受支持的API版本信息
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option.AssumeDefaultVersionWhenUnspecified = true; //如果客户端未提供并指定要调用的API版本，就以下方的默认版本为准
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option.DefaultApiVersion = new ApiVersion(1, 0); //默认版本号
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});
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//启用HTTP请求上下文访问器(用来访问类似传统MVC中的那个HttpContext对象)
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services.AddHttpContextAccessor();
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//构建并返回服务提供对象(在Build方法中主要用Autofac插件替换掉了默认的依赖注入插件，并做一些自动扫描配置)
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return new MvcAutoRegister().Build(services, mvcbuilder);
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}
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}
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/// <summary>
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/// 服务自定义配置类(承载一些自定义配置)
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/// </summary>
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///
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public class ServiceOption
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{
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/// <summary>
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/// 是否启用全局授权过滤器(默认关闭)
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/// </summary>
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public bool UseGlobalManageAuthFilter { get; set; } = false;
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/// <summary>
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/// 是否在生成的JSON字符串中忽略掉为null的属性或字段(默认为false，意思就是就算字段为null也会出现在最终序列化后的JSON字符串中)
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/// </summary>
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public bool IgnoreJsonNullValue { get; set; } = false;
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}
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}
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