DbMetaLog类提供向数据库中封送日志的相关数据的类 该类可以根据需要扩展属性。
Inheritance: MetaLog
Esempio n. 1
0
        private IDbCommand CreateCommand(DbMetaLog dblog, IDbConnection conn)
        {
            string fields = "";
            string vals   = "";

            DbParameter[] dbParameters = new DbParameter[dblog.FiledValues.Count];

            int i = 0;

            foreach (string key in dblog.FiledValues.Keys)
            {
                fields         += string.Format("{0},", key);
                vals           += string.Format("@{0},", key);
                dbParameters[i] = this.CreateDbParameter(dblog.DbDialect, "@" + key, dblog.FiledValues[key]);
                i++;
            }
            fields = fields.Trim(',');
            vals   = vals.Trim(',');

            string     commandText = string.Format("INSERT INTO {0} ({1}) VALUES ({2})", dblog.DestTable, fields, vals);
            IDbCommand cmd         = conn.CreateCommand();

            cmd.CommandText = commandText;
            cmd.CommandType = CommandType.Text;
            this.AttachParameters(cmd, dbParameters);

            return(cmd);
        }
        private IDbCommand CreateCommand(DbMetaLog dblog, IDbConnection conn)
        {
            string fields = "";
            string vals = "";
            DbParameter[] dbParameters = new DbParameter[dblog.FiledValues.Count];

            int i = 0;
            foreach (string key in dblog.FiledValues.Keys)
            {
                fields += string.Format("{0},", key);
                vals += string.Format("@{0},", key);
                dbParameters[i] = this.CreateDbParameter(dblog.DbDialect, "@" + key, dblog.FiledValues[key]);
                i++;
            }
            fields = fields.Trim(',');
            vals = vals.Trim(',');

            string commandText = string.Format("INSERT INTO {0} ({1}) VALUES ({2})", dblog.DestTable, fields, vals);
            IDbCommand cmd = conn.CreateCommand();
            cmd.CommandText = commandText;
            cmd.CommandType = CommandType.Text;
            this.AttachParameters(cmd, dbParameters);

            return cmd;
        }
Esempio n. 3
0
        /// <summary>
        /// 把日志信息输出到数据库的方法。
        /// </summary>
        /// <param name="metaLog">日志数据封送对象</param>
        public virtual void Append(MetaLog metaLog)
        {
            if (metaLog == null)
            {
                return;
            }

            DbMetaLog dblog = metaLog as DbMetaLog;

            if (dblog.FiledValues == null ||
                dblog.FiledValues.Count == 0)
            {
                return;
            }

            try
            {
                string connstr = ConfigurationManager.ConnectionStrings["logging"].ConnectionString;
                using (IDbConnection conn = this.CreateConnection(dblog.DbDialect, connstr))
                {
                    conn.Open();
                    IDbCommand cmd = this.CreateCommand(dblog, conn);
                    cmd.ExecuteNonQuery();
                }
            }
            catch (Exception ex)
            {
                System.Diagnostics.EventLog.WriteEntry("LightFramework.Tracing.DBLogAppender", ex.ToString());
            }
        }