我一直在尝试从Blazor客户端Web程序集中调用单独的asp.net核心Web api。我将模板Web API模板与此控制器一起使用。我在startup.cs中设置了CORS。我在Blazor客户端中使用标准的HTTP客户端。在本地运行,我可以在API代码上设置一个断点,然后看到它被击中。但是客户端抛出异常:输入错误
任何帮助将不胜感激。
大卫
[Route("[controller]")]
public class WeatherForecastController : ControllerBase
{
private static readonly string[] Summaries = new[]
{
"Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
};
private readonly ILogger<WeatherForecastController> _logger;
public WeatherForecastController(ILogger<WeatherForecastController> logger)
{
_logger = logger;
}
[HttpGet]
public IEnumerable<WeatherForecast> Get()
{
var rng = new Random();
return Enumerable.Range(1, 5).Select(index => new WeatherForecast
{
Date = DateTime.Now.AddDays(index),
TemperatureC = rng.Next(-20, 55),
Summary = Summaries[rng.Next(Summaries.Length)]
})
.ToArray();
}
}
Startup.cs
services.AddCors(options =>
{
options.AddPolicy(name: MyAllowSpecificOrigins,
builder =>
{
builder.WithOrigins("http://example.com",
"http://www.contoso.com")
.AllowAnyOrigin()
.AllowAnyMethod()
.AllowAnyHeader();
});
});
Blazor Client
var response = await Http.GetFromJsonAsync<WeatherForecast[]>("WeatherForecast");
答案 0 :(得分:1)
我遇到了同样的错误,并且在使用开发人员工具控制台时,似乎不允许使用混合内容(HTTPS和HTTP)。混合内容:HTTPS加载了位于“ https://”的页面,但请求了不安全的资源“ http://”。该请求已被阻止;内容必须通过HTTPS提供。检查您的页面是否也是这种情况。