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  • 折腾一天终于尝到了 signalr core了

    这是服务端的消息

    这是客户端的消息,可以看到 无论那边调用 的都同样显示了。

    之前一个问题折腾了 大半天要贴出来给大家提个醒

    using Microsoft.AspNetCore.Builder;
    using Microsoft.AspNetCore.Hosting;
    using Microsoft.AspNetCore.Http;
    using Microsoft.AspNetCore.Mvc;
    using Microsoft.Extensions.Configuration;
    using Microsoft.Extensions.DependencyInjection;
    using SignalRChat.Hubs;
    
    namespace SignalRChat
    {
        public class Startup
        {
            public Startup(IConfiguration configuration)
            {
                Configuration = configuration;
            }
    
            public IConfiguration Configuration { get; }
    
            public void ConfigureServices(IServiceCollection services)
            {
                services.Configure<CookiePolicyOptions>(options =>
                {
                    options.CheckConsentNeeded = context => true;
                    options.MinimumSameSitePolicy = SameSiteMode.None;
                });
    
    
                services.AddCors(options => options.AddPolicy("CorsPolicy",
                builder =>
                {
                    builder.AllowAnyMethod().AllowAnyHeader()
                           .WithOrigins("http://localhost:12754")
                           .AllowCredentials();
                }));
    
                services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
                services.AddSignalR();
            }
    
            public void Configure(IApplicationBuilder app, IHostingEnvironment env)
            {
                if (env.IsDevelopment())
                {
                    app.UseDeveloperExceptionPage();
                }
                else
                {
                    app.UseExceptionHandler("/Error");
                    app.UseHsts();
                }
    
                app.UseHttpsRedirection();
                app.UseStaticFiles();
                app.UseCookiePolicy();      
                app.UseCors("CorsPolicy");    //之前这句写到 下面去了导致一直报跨域访问的错误,顺序必须在 app.UseSignalR ... 这句设置之前才行,  
                app.UseSignalR(route =>
                {
                    route.MapHub<ChatHub>("/chathub");
                });
                app.UseMvc();
            }
        }
    }
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  • 原文地址:https://www.cnblogs.com/ProjectDD/p/9534585.html
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