获取渲染视图后的 ASP.net MVC 不起作用

Question

我需要一个 javascript 库来执行操作。 执行操作后，我想将结果传递给控制器​​，这样我就可以将模型内的数据传递给视图。

问题是，当我在控制器中并尝试返回视图时，它没有返回任何内容。

正如您在图像中看到的那样，它正在响应某些内容，但没有返回视图。

同样重要的是要注意我想将数据传递给视图，因此无法进行简单的重定向。

网络

控制器：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using BirdProject.Model;
using BirdProject.Model.ViewModel;
using Microsoft.AspNetCore.Mvc;
using Newtonsoft.Json;
using BirdProject.Models;
using System.Diagnostics;

// For more information on enabling MVC for empty projects, visit https://go.microsoft.com/fwlink/?LinkID=397860

namespace BirdProject.Controllers
{
    public class resultsController : Controller
    {
        private readonly ILogger<resultsController> _logger;

        public resultsController(ILogger<resultsController> logger)
        {
            _logger = logger;
        }


        // GET: /<controller>/
        public IActionResult Index()
        {
            return View();
        }


        [HttpPost]
        public IActionResult generateSearchResult([FromHeader] string data)
        {

            //var birdRecords = JsonConvert.DeserializeObject<birdDataSolutionVM>(data);

            //TempData["birds"] = birdRecords;
            
            return RedirectToAction("generateSearchResult");
        }

        [ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
        public IActionResult generateSearchResult()
        {


            return View("./generateSearchResult");
        }
    }
}

HTML（视图）：

@model BirdProject.Model.ViewModel.birdLocationsVM


@{
    ViewData["Title"] = "Fetch bird data";
}

<input type="hidden" id="getBirdData" value="@Url.Action("birdData", "Home")" />

<div class="text-center border">
<label for="fetchBirdInput" class="mt-3">Enter a colour ring:</label> <br />

<input id="fetchBirdInput" class="m-3" type="text" /> <br />

<button type="button" id="fecthButton" class="btn btn-primary m-3">Get data</button>
</div>
@section Scripts{
    <script type="module" src="~/js/modules/GeoTools.js" asp-append-version="true"></script>
    <script type="module" src="~/js/Home/ShowBirdLocations/TransformLocationData.js" asp-append-version="true"></script>
}

Javascript：

import { getLat, getLng } from "../../modules/GeoTools.js"; 

//console.log(getLat("ST2522"));
//console.log(getLng("ST2522"));


var url = document.getElementById("getBirdData").value;

console.log(url);

async function postData(url = '', data = {}) {
    const response = await fetch(url, {
        method: 'post',
        headers: {
            'Content-Type': 'application/json',
            'data': JSON.stringify(data)
        }
    });
    return response.json();
}


var fetchButton = document.getElementById("fecthButton");
var fetchInput = document.getElementById("fetchBirdInput");

fetchButton.addEventListener("click", function () {
    postData(url, { ringCode: fetchInput.value })
        .then(data => {

            

            for (let i = 0; i < data.birdData.length; i++) {
                if (data.birdData[i].gridRef != null) {
                    data.birdData[i].latitude = getLat(data.birdData[i].gridRef);
                    data.birdData[i].longitude = getLng(data.birdData[i].gridRef);
                }


            } 
            console.log(data.birdData);
            console.log(data);


            var url1 = "/results/generateSearchResult";

            fetch(url1, {
                method: 'post',
                headers: {
                    'Content-Type': 'application/json',
                    'data': JSON.stringify(data)
                }
            });

        })
});

生成搜索结果.cshtml：

@*@model BirdProject.Model.ViewModel.birdLocationsVM*@

@*
    For more information on enabling MVC for empty projects, visit https://go.microsoft.com/fwlink/?LinkID=397860
*@
@{
}

@{
    ViewData["Title"] = "Results";
}




<h1>HOLLLLLAAA</h1>