Asp.net core 在ASP.NET核心异常筛选器中获取请求/模型正文而不重播

我有几个模型共享一个界面，看起来像

public interface IRequest {
    public string RequestId { get; set; }
}

public class CatController: ControllerBase {
    [HttpPost]
    public IActionResult AddCat([FromBody] cat) {
        // call database and add cat to db
    }
}

public void OnException(ExceptionContext context) {
    // create a proper error response message
    var error = new ErrorResponse() {
        ResponseCode = 400,
        RequestId = 2, // HERE IS THE SPOT, I WANT TO READ RequestId from the RequestBody or Model without re-reading the request

        // The solution below works, but only when it is a custom exception where I had previously manually added the Data entry
        // RequestId = context.Exception.Data["RequestId"]?.ToString()
    };
    context.Result = new JsonResult(error);
}

实现此功能的模型示例如下所示

public class CatRequest : IRequest {
    public string RequestId { get; set; }
    public string Name { get; set; }

我有一个

CatController

，看起来像

public interface IRequest {
    public string RequestId { get; set; }
}

public class CatController: ControllerBase {
    [HttpPost]
    public IActionResult AddCat([FromBody] cat) {
        // call database and add cat to db
    }
}

public void OnException(ExceptionContext context) {
    // create a proper error response message
    var error = new ErrorResponse() {
        ResponseCode = 400,
        RequestId = 2, // HERE IS THE SPOT, I WANT TO READ RequestId from the RequestBody or Model without re-reading the request

        // The solution below works, but only when it is a custom exception where I had previously manually added the Data entry
        // RequestId = context.Exception.Data["RequestId"]?.ToString()
    };
    context.Result = new JsonResult(error);
}

我非常清楚在数据库操作中可能会出现一些问题，因此我有一个全局异常过滤器，它可以正常工作

public interface IRequest {
    public string RequestId { get; set; }
}

public class CatController: ControllerBase {
    [HttpPost]
    public IActionResult AddCat([FromBody] cat) {
        // call database and add cat to db
    }
}

public void OnException(ExceptionContext context) {
    // create a proper error response message
    var error = new ErrorResponse() {
        ResponseCode = 400,
        RequestId = 2, // HERE IS THE SPOT, I WANT TO READ RequestId from the RequestBody or Model without re-reading the request

        // The solution below works, but only when it is a custom exception where I had previously manually added the Data entry
        // RequestId = context.Exception.Data["RequestId"]?.ToString()
    };
    context.Result = new JsonResult(error);
}

我可以得到更好的实现吗

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谢谢。

如果您只想处理控制器操作中发生的异常，使用异常过滤器来实现它是可以的

此外，还可以使用中间件进行全局错误处理

---

有关“处理ASP.NET Core中的错误”的详细信息，请检查：

如果您只想处理控制器操作中发生的异常，请使用异常过滤器来实现它

此外，还可以使用中间件进行全局错误处理

有关“处理ASP.NET Core中的错误”的详细信息，请检查：