var builder = WebApplication.CreateBuilder(args);
// Add services to the container.
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();
//此处1
builder.Services.AddCors(options =>
{
options.AddPolicy("AllowSpecificOrigin",
builder => builder.WithOrigins("http://localhost:5175") // 允许来自这个域名的请求
.AllowAnyMethod()
.AllowAnyHeader()
.AllowCredentials());
});
var app = builder.Build();
// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
app.UseSwagger();
app.UseSwaggerUI();
}
var summaries = new[]
{
"Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
};
app.MapGet("/weatherforecast", () =>
{
var forecast = Enumerable.Range(1, 5).Select(index =>
new WeatherForecast
(
DateOnly.FromDateTime(DateTime.Now.AddDays(index)),
Random.Shared.Next(-20, 55),
summaries[Random.Shared.Next(summaries.Length)]
))
.ToArray();
return forecast;
})
.WithName("GetWeatherForecast")
.WithOpenApi();
//此处2
app.UseCors("AllowSpecificOrigin");
app.Run();
internal record WeatherForecast(DateOnly Date, int TemperatureC, string? Summary)
{
public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
}
安装 Microsoft.AspNetCore.Cors库
添加两处代码即可