参考

ASP.NET Core Web API 中控制器操作的返回类型 | Microsoft Learn

Asp.Net WebApi接口返回值IHttpActionResult - WebApi - 博客园 (cnblogs.com)

常用返回类型

Json(T content)

csharp 复制代码

[HttpGet]
public IActionResult Json()
{
    return Json(new
    {
        name = "zhangsan"
    });
}

Ok()、 Ok(T content)

csharp 复制代码

[HttpGet]
public IActionResult ok()
{
    return Ok();
}

[HttpGet]
public IActionResult ok_()
{
    return Ok(new
    {
        name = "zhangsan"
    });
}

NotFound()

csharp 复制代码

[HttpGet]
public IActionResult NotFound()
{
    return NotFound();
}

Constent(string msg )

返回字符串

csharp 复制代码

[HttpGet]
public IActionResult Content()
{
    return Content("hello world");
}

BadRequest()、BadRequest(T content)

csharp 复制代码

    [HttpGet]
    public IActionResult BadRequest()
    {
        return BadRequest("err tip");
    }

    [HttpGet]
    public IActionResult BadRequest_()
    {
        return BadRequest(new
        {
            code=123,
            meg= "tip"
        });
    }

Redirect(string location)

csharp 复制代码

[HttpGet]
public IActionResult Redirect()
{
    return Redirect("https://www.baidu.com/");
}