首先在 ConfigureServices 添加
- public void ConfigureServices(IServiceCollection services)
- {
- services.AddCors(options =>
- {
- options.AddPolicy("any", builder =>
- {
- //builder.AllowAnyOrigin() // 允许任何来源的主机访问
- builder
- .WithOrigins("http://*.*.*.*")//.SetIsOriginAllowedToAllowWildcardSubdomains()// 设置允许访问的域
- .AllowAnyMethod()
- .AllowAnyHeader()
- .AllowCredentials();//
- });
- });
- services.AddControllers();
- }
然后新增
- public class CorsMiddleware
- {
- private readonly RequestDelegate _next;
- public CorsMiddleware(RequestDelegate next)
- {
- _next = next;
- }
- public async Task Invoke(HttpContext context)
- {
- if (!context.Response.Headers.ContainsKey("Access-Control-Allow-Origin"))
- {
- context.Response.Headers.Add("Access-Control-Allow-Origin", "*");
- }
- await _next(context);
- }
- }
然后 使用中间件
App.UseMiddleware<CorsMiddleware>();
来源: http://www.bubuko.com/infodetail-3340607.html