.NET Core3.1中控制器方法参数构造失败，如何修改http响应错误信息？

public class ParameterConstructionException : Exception
{
    public ParameterConstructionException(string message) : base(message)
    {
    }
}

public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
    // 其他中间件配置...

    app.UseExceptionHandler(errorApp =>
    {
        errorApp.Run(async context =>
        {
            context.Response.StatusCode = (int)HttpStatusCode.BadRequest;
            context.Response.ContentType = "text/plain";

            var exceptionHandlerPathFeature = context.Features.Get<IExceptionHandlerPathFeature>();
            if (exceptionHandlerPathFeature?.Error is ParameterConstructionException ex)
            {
                await context.Response.WriteAsync(ex.Message);
            }
            else
            {
                await context.Response.WriteAsync("An error occurred.");
            }
        });
    });

    // 其他中间件配置...
}

[HttpGet]
public IActionResult MyControllerMethod()
{
    // 参数构造失败的情况
    if (/* 参数构造失败的条件 */)
    {
        throw new ParameterConstructionException("Parameter construction failed.");
    }

    // 其他业务逻辑...

    return Ok();
}