我有这个代码注册 HttpClient
public void ConfigureServices(IServiceCollection services)
{
services.AddRazorPages();
services.AddServerSideBlazor();
services.AddHttpClient("ServerAPI", client =>
client.BaseAddress = new Uri("http://localhost:xxxxx/"));
}
为了使用它，我将其注入了Blazor剃刀页面，
@page "/Movies/FetchMovies"
@inject IHttpClientFactory http;
@using System.Text.Json
<MovieList Movies="movies" />
@code{
private List<Movie> movies;
protected override async Task OnInitializedAsync()
{
var client = http.CreateClient("ServerAPI");
movies = await client.GetAsync<List<Movie>>("api/Movies");
//movies = await client.GetFromJsonAsync<List<Movie>>("api/Movies");
}
}
问题是此行movies = await client.GetAsync<List<Movie>>("api/Movies");出现错误：The non-generic method 'HttpClient.GetAsync(string)' cannot be used with type arguments
我尝试过movies = await client.GetFromJsonAsync<List<Movie>>("api/Movies")但也遇到错误。
您应该这样做：
@code{
private List<Movie> movies;
protected override async Task OnInitializedAsync()
{
var client = http.CreateClient("ServerAPI");
var response= await client.GetAsync("api/Movies");
response.EnsureSuccessStatusCode();
var responseContent = await response.Content.ReadAsStreamAsync();
movies = await System.Text.Json.JsonSerializer.DeserializeAsync<List<Movie>>
(responseContent,
new JsonSerializerOptions { PropertyNamingPolicy = JsonNamingPolicy.CamelCase });
}
}
希望这可以帮助...
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