Asp.Net Core2.0允许跨域请求设置

1、services

          /// <summary>
          ///
          /// </summary>
          /// <param name="services"></param>
          public void ConfigureServices(IServiceCollection services)
          {
              #region 允许跨域请求
              services.AddCors(options =>
              {
                 options.AddPolicy("CorsPolicy",
                     builder => builder
                         .AllowAnyOrigin()
                         .AllowAnyMethod()
                         .AllowAnyHeader()
                         .AllowCredentials());
             });
             #endregion
          }

2、app

         /// <summary>
         ///
         /// </summary>
         /// <param name="app"></param>
         /// <param name="env"></param>
         /// <param name="loggerFactory"></param>
         public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
         {
             #region 允许跨域请求
             app.UseCors(builder => builder.AllowAnyOrigin().AllowAnyMethod().AllowAnyHeader().AllowCredentials());
             #endregion
         }