一、日志的记录
日志的记录日志的记录其实没那么简单，需要登录日志，异常日志。其实可以有这句话引出
try { LogHelper.Insert("fun_orgmgr", "机构管理", "新增了机构：" + orgname, 1, UserAuthentication.Current().GetUserAuthInfo().UserID); } catch (Exception ex) { result.Code = "1"; result.Message = ex.Message; LogHelper.AddError("fun_orgmgr", "删除机构信息时出现异常：" + ex.Message, 1, ex.StackTrace); }
其中的LogHelper.AddError()是Controls层中的LogHelper类的AddError方法，是增加日志功能。LogHelper.Insert()是增加日志功能，这两个日志的增加要放到不同的表里面。例如T_LoginLog和T_LoginLog
在Insert()中的那几个字段是干什么用的呢？功能ID,日志摘要,日志正文,日志类型,发起用户ID，可以调出LogHelper.Insert()方法来看。
看前注意，这个LogHelper类是放到Controls层里面的，专门用来解决日志的问题，按我的理解应该是个bll层，拿AddError()来说，在赋值实体之前，实例化了一个实体，这个没什么说的，又实例化一个ActionLogService类，这个类是bll层的对日志实体进行增删改的操作，不仅对流程熟悉下，对怎样插入日志的需要的字段理清下。最后用return bll.Insert(entity);来插入日志。
namespace XTSoft.Com.Controls { public class LogHelper { public LogHelper() { // //TODO: 在此处添加构造函数逻辑 // } ////// 客户端IP /// /// private static string ClientIP() { string result = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"]; if (null == result || result == String.Empty) { result = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"]; } if (null == result || result == String.Empty) { result = HttpContext.Current.Request.UserHostAddress; } return result; } /// /// 插入登录日志 /// /// 日志摘要 /// 日志正文 /// 日志类型1=浏览器登录，2=客户端登录 /// 发起用户ID /// public static int Insert(string Summary, string Describe, int LoginType, Guid UserID) { LoginLogService bll = new LoginLogService(); HttpBrowserCapabilities b = HttpContext.Current.Request.Browser; T_LoginLog entity = new T_LoginLog(); entity.Summary = Summary; entity.Describe = Describe; entity.LoginType = LoginType; entity.UserID = UserID; entity.CreateDate = DateTime.Now; entity.ClientIP = ClientIP(); entity.UserAgent = b.Browser + " " + b.Version; entity.RequestUrl = HttpContext.Current.Request.Url.AbsolutePath; entity.RefererUrl = HttpContext.Current.Request.UrlReferrer != null ? HttpContext.Current.Request.UrlReferrer.AbsolutePath : string.Empty; return bll.Insert(entity); } /// /// 插入异常日志 /// /// 功能ID /// 异常摘要 /// 异常类型1=系统异常，2=自定义 /// 异常描述 /// public static int AddError(string FunctionID, string Summary, int ErrorType, string Content) { int result = 0; try { ErrorLogService bll = new ErrorLogService(); HttpBrowserCapabilities b = HttpContext.Current.Request.Browser; T_ErrorLog entity = new T_ErrorLog(); entity.FunctionID = FunctionID; entity.Summary = Summary; entity.ErrorType = ErrorType; entity.Content = Content; entity.CreateDate = DateTime.Now; entity.ClientIP = ClientIP(); entity.UserAgent = b.Browser + " " + b.Version; entity.RequestUrl = HttpContext.Current.Request.Url.AbsolutePath; entity.RefererUrl = HttpContext.Current.Request.UrlReferrer.AbsolutePath; result= bll.Insert(entity); } catch { } return result; } /// /// 插入操作日志 /// /// 功能ID /// 日志摘要 /// 日志正文 /// 日志类型1=模块访问 /// 发起用户ID /// public static int Insert(string FunctionID, string Summary, string Describe, int LogType, Guid UserID) { ActionLogService bll = new ActionLogService(); HttpBrowserCapabilities b = HttpContext.Current.Request.Browser; T_ActionLog entity = new T_ActionLog(); entity.FunctionID = FunctionID; entity.Summary = Summary; entity.Describe = Describe; entity.LogType = LogType; entity.UserID = UserID; entity.CreateDate = DateTime.Now; entity.ClientIP = ClientIP(); entity.UserAgent = b.Browser + " " + b.Version; entity.RequestUrl = HttpContext.Current.Request.Url.AbsolutePath; entity.RefererUrl = HttpContext.Current.Request.UrlReferrer.AbsolutePath; return bll.Insert(entity); } } }
namespace XTSoft.Com.BLL { public class ActionLogService : PagerHelper { IActionLogProvider dal = new ActionLogProvider(); public ActionLogService() { } ////// 单条插入数据 /// /// 实体 /// public int Insert(T_ActionLog entity) { if (dal.Insert(entity) > 0) { return 1; } return -1; } /// /// 批量插入数据 /// /// 实体 /// public int Insert(IList entities) { if (dal.Insert(entities) > 0) { return 1; } return -1; } /// /// 单条删除数据 /// /// /// public int Delete(T_ActionLog entity) { return dal.Delete(entity); } /// /// 批量删除数据 /// /// /// public int Delete(IList entities) { return dal.Delete(entities); } /// /// 单条更新数据(自动插入数据到任务备注记录表) /// /// 更改实体 /// public int Update(T_ActionLog entity) { return dal.Update(entity); } /// /// 批量更新数据(自动插入数据到任务备注记录表) /// /// 更改实体 /// public int Update(IList entities) { return dal.Update(entities); } /// /// 传人DateSet获取实体 /// /// /// public IList GetRowEntity(DataSet ds) { return dal.GetRowEntity(ds); } /// /// 根据id获取结果 /// /// 查询id /// public T_ActionLog selToID (T LogID) { return dal.selToID(LogID); } } }
注意到ClientIP()方法，与之前记录过的IP获取的方法是一样的，若客户端真实的IP不存在，那就获取代理IP，若真是的IP存在直接读取。
http://www.cnblogs.com/d685600/p/3683467.html
二、LogHelper.cs知识点分解
1、注意到LogHlper.AddError()中有HttpBrowserCapabilities b = HttpContext.Current.Request.Browser; 这是用来获取浏览器的版本信息在entity.UserAgent = b.Browser + " " + b.Version;对实体进行插入，数据库中会显示IE9.0注意这是两个b.Browser和b.Version的结合。
2、HttpContext.Current.Request.Url.AbsolutePath;HttpContext.Current.Request.UrlReferrer.AbsolutePath;分别是当前请求的URL和请求连接到当前URL的URL。这在日志记录中也是必要的
entity.RequestUrl = HttpContext.Current.Request.Url.AbsolutePath;
entity.RefererUrl = HttpContext.Current.Request.UrlReferrer.AbsolutePath;