步骤1：使用Blazor WASM创建一个新项目。 步骤2：安装Microsoft.AspNetCore.Components.Authorization软件包。 步骤3：创建自定义身份验证状态以存储JWT令牌和用户信息。

public class CustomAuthenticationStateProvider : AuthenticationStateProvider
{
    private readonly HttpClient _httpClient;

    public CustomAuthenticationStateProvider(HttpClient httpClient)
    {
        _httpClient = httpClient;
    }

    public override async Task GetAuthenticationStateAsync()
    {
        var token = await GetTokenAsync();

        var identity = string.IsNullOrEmpty(token) 
            ? new ClaimsIdentity()
            : new ClaimsIdentity(ParseClaimsFromJwt(token), "jwt");

        return new AuthenticationState(new ClaimsPrincipal(identity));
    }

    public async Task GetTokenAsync()
    {
        return await _httpClient.GetStringAsync("api/getToken");
    }

    private IEnumerable ParseClaimsFromJwt(string jwt)
    {
        var payload = jwt.Split('.')[1];
        var jsonBytes = JwtBase64Url.Decode(payload);
        var keyValuePairs = JsonSerializer.Deserialize>(jsonBytes);

        var claims = keyValuePairs
            .SelectMany(x => ExtractClaimsFromDictionary(x.Key, x.Value));

        return claims;
    }

    private IEnumerable ExtractClaimsFromDictionary(string key, object value)
    {
        if (value is not JsonElement element)
        {
            yield return new Claim(key, value.ToString());
            yield break;
        }

        if (element.ValueKind == JsonValueKind.Number && element.TryGetInt32(out var intVal))
        {
            yield return new Claim(key, intVal.ToString());
            yield break;
        }

        if (element.ValueKind == JsonValueKind.Boolean)
        {
            yield return new Claim(key, element.GetBoolean().ToString());
            yield break;
        }

        if (element.ValueKind == JsonValueKind.String)
        {
            if (DateTimeOffset.TryParse(element.GetString(), out var dateTimeOffset))
            {
                yield return new Claim(key, dateTimeOffset.ToString("o", CultureInfo.InvariantCulture));
                yield break;
            }
            yield return new Claim(key, element.GetString());
            yield break;
        }

        if (element.ValueKind == JsonValueKind.Array)
        {
            var jArray = (JsonElement.ArrayEnumerator)element.EnumerateArray();
            var arrayIndex = 0;
            while (jArray.MoveNext())
            {
                var arrayValue = jArray.Current;
                var nestedKey = $"{key}:{arrayIndex++}";
                foreach (var nestedClaim in ExtractClaimsFromDictionary(nestedKey, arrayValue))
                {
                    yield return nestedClaim;
                }
            }

            yield break;
        }

        if (element.ValueKind == JsonValueKind.Object)