.net核心类，用于获取参数并作为json返回

using Microsoft.AspNetCore.Http;
using Newtonsoft.Json;

public class MyController
{
    private readonly IHttpContextAccessor _httpContextAccessor;

    public MyController(IHttpContextAccessor httpContextAccessor)
    {
        _httpContextAccessor = httpContextAccessor;
    }

    public IActionResult GetParameters()
    {
        HttpContext context = _httpContextAccessor.HttpContext;

        // 获取请求参数
        string param1 = context.Request.Query["param1"];
        string param2 = context.Request.Query["param2"];

        // 构建返回的JSON对象
        var response = new
        {
            Param1 = param1,
            Param2 = param2
        };

        // 将JSON对象序列化为字符串并返回
        return Content(JsonConvert.SerializeObject(response), "application/json");
    }
}