记录http请求

环境

• .net7

一、过滤器(Filter)

这个过程用的的是操作过滤器（ActionFilter）

二、

2.1 继承IAsyncActionFilter

2.2 重写OnActionExecutionAsync

OnActionExecutionAsync - 在调用操作方法前调用
OnActionExecutionAsync(ActionExecutingContext, ActionExecutionDelegate)
ActionExecutingContext 实例化新 ActionExecutingContext 实例,返回关于调用操作方法的信息
ActionExecutionDelegate

• 异步返回的 ActionExecutedContext 委托，指示已执行操作或下一个操作筛选器
• 完成后 Task 返回 的 ActionExecutedContext。

三、示例

public class AuditLogActionFilter : IAsyncActionFilter
{
    //AuditLog服务对象，用于保存/查询等操作
    //private readonly IAuditLogService _auditLogService;
    //当前登录用户对象，获取当前用户信息

    // 这些都是Abp中的，使用会报错。还没去看具体实现
    //private readonly IAbpSession _admSession;
    //系统日志接口，用于记录一些系统异常信息
    //private readonly ILogger<AuditActionFilter> _logger;
    //客户端信息接口，获取浏览器，IP等信息 
    //private readonly IClientInfoProvider _clientInfoProvider;

    public MysqlDbContext _dbContext;

    public AuditLogActionFilter(MysqlDbContext dbContext)
    {
        _dbContext = dbContext;
    }

    // 方法进去前执行
    public async Task OnActionExecutionAsync(ActionExecutingContext context, ActionExecutionDelegate next)
    {
        //接口Type
        var type = (context.ActionDescriptor as ControllerActionDescriptor).ControllerTypeInfo.AsType();
        //方法信息
        var method = (context.ActionDescriptor as ControllerActionDescriptor).MethodInfo;
        //方法参数
        var arguments = context.ActionArguments;
        //开始计时
        var stopwatch = Stopwatch.StartNew();


        var Request = context.HttpContext.Request;
        var Response = context.HttpContext.Response;


        var auditInfoLog = new AuditInfoLog
        {
            Url = Request.Host.Value + Request.Path.Value, // 请求的URL
            Host = Request.Host.Host.ToString(), // 请求地址
            Port = Request.Host.Port, // 请求端口
            Headers = Request.Headers.ToString(), // 请求头
            Method = Request.Method, // 请求方法
            ExcuteStartTime = DateTime.Now, // 执行开始时间
            ServiceName = type != null ? type.FullName : "", 
            Parameters = JsonConvert.SerializeObject(arguments), // 请求参数
            StatusCode = Response.StatusCode // 返回状态码
        };

        ActionExecutedContext result = null;
        try
        {
            result = await next();
            if (result.Exception != null && !result.ExceptionHandled)
            {
                auditInfoLog.Exception = result.Exception.ToString(); // 异常信息
            }
        }
        catch (Exception ex)
        {
            auditInfoLog.Exception = ex.ToString(); // 异常信息
            throw;
        }
        finally
        {
            stopwatch.Stop();
            auditInfoLog.ExecutionDuration = Convert.ToInt32(stopwatch.Elapsed.TotalMilliseconds);

            if (result != null)
            {
                switch (result.Result)
                {
                    case ObjectResult objectResult:
                        auditInfoLog.ReturnValue = objectResult.Value.ToString(); 
                        break;

                    case JsonResult jsonResult:
                        auditInfoLog.ReturnValue = jsonResult.Value.ToString();
                        break;

                    case ContentResult contentResult:
                        auditInfoLog.ReturnValue = contentResult.Content;
                        break;
                }
            }
            Console.WriteLine(auditInfoLog.ToString());
            auditInfoLog.ReturnValue = auditInfoLog.ReturnValue; // 请求返回值

            //保存审计日志

            #region  存储到数据库
            auditInfoLog.ExcuteEndTime = auditInfoLog.ExcuteStartTime.Add(stopwatch.Elapsed);
            await _dbContext.AuditInfoLog.AddAsync(auditInfoLog);
            _dbContext.SaveChanges();
            #endregion

            #region 存储到本地
            var date = DateTime.Now.ToString("yyyy-MM-dd");
            var HttpLogPage = ($"LocalLogs/HttpLogs");

            // 判断是否有这个文件夹,没有则生成
            if (!Directory.Exists(HttpLogPage))
            {
                Directory.CreateDirectory(HttpLogPage);
            }  
            using (StreamWriter sw = new StreamWriter($"{HttpLogPage}/HttpLog{date}.txt",true))
            {
                sw.WriteLine($"接口服务名称:   {auditInfoLog.ServiceName}");
                sw.WriteLine($"请求URL:   {auditInfoLog.Url}");
                sw.WriteLine($"请求地址:   {auditInfoLog.Host}");
                sw.WriteLine($"请求端口:   {auditInfoLog.Port}");
                sw.WriteLine($"请求方法:   {auditInfoLog.Method}");
                sw.WriteLine($"请求参数:   {auditInfoLog.Parameters}");
                sw.WriteLine($"返回状态码:   {auditInfoLog.StatusCode}");
                sw.WriteLine($"返回数据:   {auditInfoLog.ReturnValue}");
                sw.WriteLine($"执行开始时间:   {auditInfoLog.ExcuteStartTime.ToString("yyyy-MM-dd HH:mm:ss.fffffff")}");
                sw.WriteLine($"执行时间:   {auditInfoLog.ExecutionDuration}ms");
                sw.WriteLine($"执行结束时间:   {auditInfoLog.ExcuteEndTime.ToString("yyyy-MM-dd HH:mm:ss.fffffff")}");
                sw.WriteLine($"异常信息:   {auditInfoLog.Exception}");
                sw.WriteLine("======================================================");
                sw.WriteLine();
            }
            #endregion

            //await _auditLogService.SaveAsync(auditInfo);
        }
    }
}