如何读取 Blazor Razor 页面上的标题？

Question

我有一个 Razor 页面，想要从请求中读取标头，但我找不到如何执行此操作。我该怎么做？

@page  "/"
@inject NavigationManager navigationManager;


<div class="section">
</div>

@code {

    private string header;

    protected override async Task OnInitializedAsync()
    {
        // how to do it here
    }
}

Answer 1

我找到了阅读标题的简单方法

首先，添加 IHttpContextAccessor 服务的默认实现

builder.Services.AddHttpContextAccessor();

然后需要从页面请求中通过标头名称获取标头：

@inject IHttpContextAccessor httpContextAccessor;

@code {

    private string needParameter { get; set; }

    protected override async Task OnInitializedAsync()
    {
        needParameter = httpContextAccessor.HttpContext.Request.Headers["parameterName"];
    }
}