.net 后台获取js的值

// 假设我们要发送的数据是一个对象
var dataToSend = {
    key1: "value1",
    key2: "value2"
};

// 使用fetch API发送POST请求
fetch('/api/your-endpoint', {
    method: 'POST',
    headers: {
        'Content-Type': 'application/json',
    },
    body: JSON.stringify(dataToSend),
})
.then(response => response.json())
.then(data => console.log('Success:', data))
.catch((error) => console.error('Error:', error));

using Microsoft.AspNetCore.Mvc;
using Newtonsoft.Json;

[ApiController]
[Route("api/[controller]")]
public class YourController : ControllerBase
{
    [HttpPost]
    public IActionResult PostData()
    {
        // 读取请求体中的JSON数据
        string json = new StreamReader(Request.Body).ReadToEnd();
        
        // 反序列化JSON数据到一个对象
        var receivedData = JsonConvert.DeserializeObject<dynamic>(json);
        
        // 访问数据
        string value1 = receivedData.key1;
        string value2 = receivedData.key2;
        
        // 处理数据...
        
        // 返回响应
        return Ok(new { message = "Data received successfully", data = receivedData });
    }
}