废话不多说，直接上代码
跨域的代码在 #region 里
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.HttpsPolicy;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using Microsoft.OpenApi.Models;
namespace Project.API
{
public class Startup
{
private string MyAllowSpecificOrigins = "MyAllowSpecificOrigins";//这里也是跨域的东西
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
#region 跨域
// services.AddCors(); 原本的配置
// 新的配置，不限制跨域请求
services.AddCors(options =>
{
options.AddPolicy(MyAllowSpecificOrigins,
builder => builder.AllowAnyOrigin()
.WithMethods("GET", "POST", "HEAD", "PUT", "DELETE", "OPTIONS")
);
});
#endregion
services.AddControllers();
Register(services);
services.AddOptions();
}
/// <summary>
/// 依赖注入
/// </summary>
/// <param name="services"></param>
private static void Register(IServiceCollection services)
{
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
#region 跨域
/*
app.UseCors(builder =>
{
builder.WithOrigins(GlobalContext.SystemConfig.AllowCorsSite.Split(‘,‘)).AllowAnyHeader().AllowAnyMethod().AllowCredentials();
});
*/
app.UseCors(MyAllowSpecificOrigins);
#endregion
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
app.UseHttpsRedirection();
app.UseRouting();
app.UseAuthorization();
}
}
}