Question

我有一个具有2个控制器的Web API，并且在我的Startup类中启用了Cors，这是我的ConfigureServices方法：

public void ConfigureServices(IServiceCollection services)
        {
            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);

            services.AddCors(o => o.AddPolicy("MyPolicy", builder =>
            {
                builder.AllowAnyOrigin()
                       .AllowAnyMethod()
                       .AllowAnyHeader();
            }));
            services.AddAutoMapper();
        }

这里是配置方法：

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
    if (env.IsDevelopment())
    {
        app.UseDeveloperExceptionPage();
    }
    else
    {
        app.UseHsts();
    }

    app.UseCors(
        options => options.AllowAnyOrigin()
        .AllowAnyMethod()
        .AllowAnyHeader()
    );

    app.UseHttpsRedirection();
    app.UseMvc();
}

现在，我有两个控制器。当我向此方法发出GET请求时，一切正常：

[Route("api/[controller]")]
[ApiController]
[EnableCors("MyPolicy")]
public class MovieController : ControllerBase
{
    public async Task<IActionResult> Get()
    {
        HttpClient httpClient = new HttpClient();

        var responseMessage = await httpClient.GetAsync("https://copafilmes.azurewebsites.net/api/filmes");

        if (!responseMessage.IsSuccessStatusCode) return null;

        var jsonResult = await responseMessage.Content.ReadAsStringAsync();

        return Ok(jsonResult);
    }

现在，当我尝试为此POST做一个

[Route("api/[controller]")]
[ApiController]
[EnableCors("MyPolicy")]
public class CupController : ControllerBase
{
    private readonly IMapper mapper;

    public CupController(IMapper mapper)
    {
        this.mapper = mapper;
    }

    [HttpPost]
    public IActionResult Post([FromBody] IEnumerable<MovieViewModel> moviesViewModel)
    {
        var movies = mapper.Map<IEnumerable<Movie>>(moviesViewModel).ToList();

        var cup = new Cup(movies);
        cup.Run();

        return Ok(cup.Id);
    }
}

然后我在浏览器控制台中收到消息：

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://worldcupapi-gabs.azurewebsites.net/api/cup. (Reason: CORS header ‘Access-Control-Allow-Origin’ missing).

我正在尝试通过Vuejs简单应用发布此帖子，您可以在这里尝试：https://codesandbox.io/s/j23np20663

只需选择8张卡片（单击它们，它们就会变成灰色），然后单击“提交”按钮。

向ASP.NET Core Web API发出发布请求时，跨域请求被阻止

0 个答案: