.net core配置接口可跨域访问

比眉伴天荒 2023-08-17 15:31 142阅读 0赞

修改Startup.cs文件启用。

1.在方法ConfigureServices内配置以下代码(MyAllowSpecificOrigins为自己定义的一个常量存放跨域策略名，可直接使用字符)

//启用跨域
                services.AddCors(options =>
                {
                    options.AddPolicy(MyAllowSpecificOrigins,
                        builder => builder.AllowAnyOrigin()
                          .AllowAnyMethod()
                          .AllowAnyHeader()
                          .AllowCredentials()
                    .Build());
                });

2.在方法Configure配置以下代码

// 跨域
                app.UseHttpsRedirection().UseCors(builder =>
                builder.AllowAnyOrigin().AllowAnyMethod().AllowAnyHeader());

把整个Startup.cs代码粘出来

public class Startup
        {
            public Startup(IConfiguration configuration)
            {
                Configuration = configuration;
            }
    
            public IConfiguration Configuration { get; }
    
            private readonly string MyAllowSpecificOrigins = "CorsPolicy";
    
            // This method gets called by the runtime. Use this method to add services to the container.
            public void ConfigureServices(IServiceCollection services)
            {
                services.Configure<CookiePolicyOptions>(options =>
                {
                    // This lambda determines whether user consent for non-essential cookies is needed for a given request.
                    options.CheckConsentNeeded = context => true;
                    options.MinimumSameSitePolicy = SameSiteMode.None;
                });
    
    
                services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
    
                //启用跨域
                services.AddCors(options =>
                {
                    options.AddPolicy(MyAllowSpecificOrigins,
                        builder => builder.AllowAnyOrigin()
                          .AllowAnyMethod()
                          .AllowAnyHeader()
                          .AllowCredentials()
                    .Build());
                });
            }
    
            // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
            public void Configure(IApplicationBuilder app, IHostingEnvironment env)
            {
                if (env.IsDevelopment())
                {
                    app.UseDeveloperExceptionPage();
                }
                else
                {
                    app.UseExceptionHandler("/Home/Error");
                    // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
                    app.UseHsts();
                }
    
                app.UseHttpsRedirection();
                app.UseStaticFiles();
                app.UseCookiePolicy();
    
                app.UseUrlMiddleWare();
                // 跨域
                app.UseHttpsRedirection().UseCors(builder =>
                builder.AllowAnyOrigin().AllowAnyMethod().AllowAnyHeader());
    
                app.UseMvc(routes =>
                {
                    routes.MapRoute(
                        name: "default",
                        template: "{controller=Home}/{action=Index}/{id?}");
                });
            }
        }