c#个人记录常用方法(更新中)

1.日期毫秒转换为标准的C#日期格式

//使用时,先将秒Convert.ToInt64,返回格式2015-2-10 14:03:33
public DateTime JavaTimeToC(long ltime)
{
    long time_JAVA_Long = ltime;//java长整型日期,毫秒为单位
    DateTime dt_1970 = new DateTime(1970, 1, 1);
    long tricks_1970 = dt_1970.Ticks;//1970年1月1日刻度
    long time_tricks = tricks_1970 + time_JAVA_Long * 10000;//日志日期刻度
    DateTime dt = new DateTime(time_tricks, DateTimeKind.Unspecified).AddHours(8);//转化为DateTime
    return dt;
}

2.带事务的数据库插入更新删除方法

public void DbOp(List<string> sqlNum, ref string error)
{
    if (sqlNum.Count <= 0)
    {
        error = "sql语句为空,没有订单数据!";
        return;
    }
    try
    {
        if (!string.IsNullOrEmpty(strDbConnection))//缺少数据库连接字符串
        {
            using (OracleConnection con = new OracleConnection(strDbConnection))
            {
                using (OracleCommand cmd = con.CreateCommand())
                {
                    con.Open();
                    OracleTransaction trans = con.BeginTransaction();//开始事务
                    cmd.Transaction = trans;//设置事务
                    string[] sql = sqlNum.ToArray();
                    try
                    {


                        for (int i = 0; i < sql.Length; i++)
                        {
                            cmd.CommandText = sql[i];
                            cmd.ExecuteNonQuery();
                        }
                        trans.Commit();//提交事务
                    }
                    catch (Exception ex)
                    {
                        error += ex;
                        trans.Rollback();//回滚
                    }
                    finally
                    {
                        con.Close();//始终关闭数据库连接
                    }
                }
            }
        }
        else
        {
            //缺少数据库连接字符串
            error += "缺少数据库连接字符串";
        }
    }
    catch (Exception ex)
    {

        error += ex;
    }
}
View Code

3.数据库查询方法

public  DataSet Query(string SQLString)
{
    using (OracleConnection connection = new OracleConnection(strDbConnection))
    {
        DataSet ds = new DataSet();
        try
        {
            connection.Open();
            OracleDataAdapter command = new OracleDataAdapter(SQLString, connection);
            command.Fill(ds, "ds");
        }
        catch (System.Data.OracleClient.OracleException ex)
        {
            throw new Exception(ex.Message);
        }
        finally
        {
            connection.Close();
        }
        return ds;
    }
}
View Code

4.DataTime,转换为string类型

public string DateTimeChange(DateTime dt)
{
    string strDT = dt.Year.ToString();
    if (dt.Month.ToString().Length == 1)
    {
        strDT += "-0" + dt.Month.ToString();
    }
    else
    {
        strDT += "-" + dt.Month.ToString();
    }

    if (dt.Day.ToString().Length == 1)
    {
        strDT += "-0" + dt.Day.ToString();
    }
    else
    {
        strDT += "-" + dt.Day.ToString();
    }

    if (dt.Hour.ToString().Length == 1)
    {
        strDT += " 0" + dt.Hour.ToString();
    }
    else
    {
        strDT += " " + dt.Hour.ToString();
    }

    if (dt.Minute.ToString().Length == 1)
    {
        strDT += ":0" + dt.Minute.ToString();
    }
    else
    {
        strDT += ":" + dt.Minute.ToString();
    }

    if (dt.Second.ToString().Length == 1)
    {
        strDT += ":0" + dt.Second.ToString();
    }
    else
    {
        strDT += ":" + dt.Second.ToString();
    }
    return strDT;
}
View Code

 5.写日志dll

//地址:http://files.cnblogs.com/files/valiant1882331/%E5%86%99%E6%97%A5%E5%BF%97.rar
//使用
Log.ClsLog lo = new Log.ClsLog();
lo.writelogtype("124",1);
lo.writelogtype("124", 1,"日志文件名称");

 dll源代码

public class ClsLog
    {
        /// 不限定名称写日志主方法
        /// <summary>
        /// 不限定名称写日志主方法
        /// </summary>
        /// <param name="msg">1string2Exception</param>
        /// <param name="code">1应用程序日志2SQL日志3应用程序错误4SQL错误5下载错误6上传错误7下载日志8上传日志9初1错10初1日11初2错12初2日13初3错14初3日15初4错16初4日17初5错18初5日19初6错20初6日21初0错22初0日23实1错24实1日25实2错26实2日27实0错28实0日29打0错30打0日31池0错32池0日33判0错34判0日35按键36xssql37upsql38downsql39dayinsql40chu1sql41chu2sql42chu3sql43chu4sql44chu5sql45upbeifensql46upedsql</param>
        public void writelogtype(object msg, int code)
        {
            string strErr = "";
            Exception e = null;
            switch (code)
            {
                case 1:
                    writelog(msg.ToString().Trim(), "applog");
                    break;
                case 2:
                    writelog(msg.ToString().Trim(), "sqllog");
                    break;
                case 3:
                    e = msg as Exception;
                    strErr = "Source:" + e.Source + Environment.NewLine;
                    strErr += "Message:" + e.Message + Environment.NewLine;
                    strErr += "StackTrace:" + e.StackTrace;
                    writelog(strErr, "apperr");
                    break;
                case 4:
                    e = msg as Exception;
                    strErr = "Source:" + e.Source + Environment.NewLine;
                    strErr += "Message:" + e.Message + Environment.NewLine;
                    strErr += "StackTrace:" + e.StackTrace;
                    writelog(strErr, "sqlerr");
                    break;
                case 5:
                    e = msg as Exception;
                    strErr = "Source:" + e.Source + Environment.NewLine;
                    strErr += "Message:" + e.Message + Environment.NewLine;
                    strErr += "StackTrace:" + e.StackTrace;
                    writelog(strErr, "downerr");
                    break;
                case 6:
                    e = msg as Exception;
                    strErr = "Source:" + e.Source + Environment.NewLine;
                    strErr += "Message:" + e.Message + Environment.NewLine;
                    strErr += "StackTrace:" + e.StackTrace;
                    writelog(strErr, "uperr");
                    break;
                case 7:
                    writelog(msg.ToString().Trim(), "downlog");
                    break;
                case 8:
                    writelog(msg.ToString().Trim(), "uplog");
                    break;
                case 9:
                    e = msg as Exception;
                    strErr = "Source:" + e.Source + Environment.NewLine;
                    strErr += "Message:" + e.Message + Environment.NewLine;
                    strErr += "StackTrace:" + e.StackTrace;
                    writelog(strErr, "initerr1");
                    break;
                case 10:
                    writelog(msg.ToString().Trim(), "initlog1");
                    break;
                case 11:
                    e = msg as Exception;
                    strErr = "Source:" + e.Source + Environment.NewLine;
                    strErr += "Message:" + e.Message + Environment.NewLine;
                    strErr += "StackTrace:" + e.StackTrace;
                    writelog(strErr, "initerr2");
                    break;
                case 12:
                    writelog(msg.ToString().Trim(), "initlog2");
                    break;
                case 13:
                    e = msg as Exception;
                    strErr = "Source:" + e.Source + Environment.NewLine;
                    strErr += "Message:" + e.Message + Environment.NewLine;
                    strErr += "StackTrace:" + e.StackTrace;
                    writelog(strErr, "initerr3");
                    break;
                case 14:
                    writelog(msg.ToString().Trim(), "initlog3");
                    break;
                case 15:
                    e = msg as Exception;
                    strErr = "Source:" + e.Source + Environment.NewLine;
                    strErr += "Message:" + e.Message + Environment.NewLine;
                    strErr += "StackTrace:" + e.StackTrace;
                    writelog(strErr, "initerr4");
                    break;
                case 16:
                    writelog(msg.ToString().Trim(), "initlog4");
                    break;
                case 17:
                    e = msg as Exception;
                    strErr = "Source:" + e.Source + Environment.NewLine;
                    strErr += "Message:" + e.Message + Environment.NewLine;
                    strErr += "StackTrace:" + e.StackTrace;
                    writelog(strErr, "initerr5");
                    break;
                case 18:
                    writelog(msg.ToString().Trim(), "initlog5");
                    break;
                case 19:
                    e = msg as Exception;
                    strErr = "Source:" + e.Source + Environment.NewLine;
                    strErr += "Message:" + e.Message + Environment.NewLine;
                    strErr += "StackTrace:" + e.StackTrace;
                    writelog(strErr, "initerr6");
                    break;
                case 20:
                    writelog(msg.ToString().Trim(), "initlog6");
                    break;
                case 21:
                    e = msg as Exception;
                    strErr = "Source:" + e.Source + Environment.NewLine;
                    strErr += "Message:" + e.Message + Environment.NewLine;
                    strErr += "StackTrace:" + e.StackTrace;
                    writelog(strErr, "initerr0");
                    break;
                case 22:
                    writelog(msg.ToString().Trim(), "initlog0");
                    break;
                case 23:
                    e = msg as Exception;
                    strErr = "Source:" + e.Source + Environment.NewLine;
                    strErr += "Message:" + e.Message + Environment.NewLine;
                    strErr += "StackTrace:" + e.StackTrace;
                    writelog(strErr, "shierr1");
                    break;
                case 24:
                    writelog(msg.ToString().Trim(), "shilog1");
                    break;
                case 25:
                    e = msg as Exception;
                    strErr = "Source:" + e.Source + Environment.NewLine;
                    strErr += "Message:" + e.Message + Environment.NewLine;
                    strErr += "StackTrace:" + e.StackTrace;
                    writelog(strErr, "shierr2");
                    break;
                case 26:
                    writelog(msg.ToString().Trim(), "shilog2");
                    break;
                case 27:
                    e = msg as Exception;
                    strErr = "Source:" + e.Source + Environment.NewLine;
                    strErr += "Message:" + e.Message + Environment.NewLine;
                    strErr += "StackTrace:" + e.StackTrace;
                    writelog(strErr, "shierr0");
                    break;
                case 28:
                    writelog(msg.ToString().Trim(), "shilog0");
                    break;
                case 29:
                    e = msg as Exception;
                    strErr = "Source:" + e.Source + Environment.NewLine;
                    strErr += "Message:" + e.Message + Environment.NewLine;
                    strErr += "StackTrace:" + e.StackTrace;
                    writelog(strErr, "dayinerr0");
                    break;
                case 30:
                    writelog(msg.ToString().Trim(), "dayinlog0");
                    break;
                case 31:
                    e = msg as Exception;
                    strErr = "Source:" + e.Source + Environment.NewLine;
                    strErr += "Message:" + e.Message + Environment.NewLine;
                    strErr += "StackTrace:" + e.StackTrace;
                    writelog(strErr, "chierr0");
                    break;
                case 32:
                    writelog(msg.ToString().Trim(), "chilog0");
                    break;
                case 33:
                    e = msg as Exception;
                    strErr = "Source:" + e.Source + Environment.NewLine;
                    strErr += "Message:" + e.Message + Environment.NewLine;
                    strErr += "StackTrace:" + e.StackTrace;
                    writelog(strErr, "panerr0");
                    break;
                case 34:
                    writelog(msg.ToString().Trim(), "panlog0");
                    break;
                case 35:
                    writelog(msg.ToString().Trim(), "anjian");
                    break;
                case 36:
                    //writelog(msg.ToString().Trim(), "xssql");
                    break;
                case 37:
                    writelog(msg.ToString().Trim(), "upsql");
                    break;
                case 38:
                    writelog(msg.ToString().Trim(), "downsql");
                    break;
                case 39:
                    writelog(msg.ToString().Trim(), "dayinsql");
                    break;
                case 40:
                    writelog(msg.ToString().Trim(), "chu1sql");
                    break;
                case 41:
                    writelog(msg.ToString().Trim(), "chu2sql");
                    break;
                case 42:
                    writelog(msg.ToString().Trim(), "chu3sql");
                    break;
                case 43:
                    writelog(msg.ToString().Trim(), "chu4sql");
                    break;
                case 44:
                    writelog(msg.ToString().Trim(), "chu5sql");
                    break;
                case 45:
                    writelog(msg.ToString().Trim(), "upbeifensql");
                    break;
                case 46:
                    writelog(msg.ToString().Trim(), "upedsql");
                    break;
                case 47:
                    writelog(msg.ToString().Trim(), "lianjisql");
                    break;
                case 48:
                    writelog(msg.ToString().Trim(), "JieKou");
                    break;
                case 49:
                    writelog(msg.ToString().Trim(), "ShuHao");
                    break;
                //40chu1sql41chu2sql42chu3sql43chu4sql44chu5sql
            }
        }


        ///写日志,自定义日志名称,类型
        /// <summary>
        /// 写日志,自定义日志名称,类型
        /// </summary>
        /// <param name="msg">错误信息</param>
        /// <param name="code">1:异常错误信息ex.Message  2,ex</param>
        /// <param name="logName">日志名称</param>
        /// <returns></returns>
        public string writeLogType(object msg, int code, string logName)
        {
            string strErr = "";
            logName = logName.Replace(':','!');
            Exception e = null;
            switch (code)
            {
                case 1:
                    return writelog(msg.ToString().Trim(), logName);
                case 2:
                    e = msg as Exception;
                    strErr = "Source:" + e.Source + Environment.NewLine;
                    strErr += "Message:" + e.Message + Environment.NewLine;
                    strErr += "StackTrace:" + e.StackTrace;
                    return writelog(strErr, logName);
            }
            return "";
        }
        ///写日志主方法,仅调用
        /// <summary>
        /// 写日志主方法,仅调用
        /// </summary>
        /// <param name="value">错误信息</param>
        /// <param name="name">日志名称</param>
        /// <returns></returns>
        private string writelog(string value, string name)
        {
            string strPath = "";//定义日志路径
            try
            {
                //如果是http,web请求,则路径为web服务器上的虚拟路径对应的物理路径
                strPath = System.Web.HttpContext.Current.Server.MapPath("log");
            }
            catch (Exception)
            {
            }
            if (strPath == "")
            {
                //如果没有web路径,就设置路径为本地可执行文件个目录
                strPath = Application.StartupPath;
            }
            FileStream logFile = null;
            //
            string strDate = DateTime.Now.Year.ToString();//获取当前如期年份部分
            strDate += "-" + DateTime.Now.Month.ToString();//2000-01
            strDate += "-" + DateTime.Now.Day.ToString();//2000-01-01
            if(!Directory.Exists(strPath+"\log"))
            {
                Directory.CreateDirectory(strPath+"\log");
            }
            if (!Directory.Exists(strPath + "\log\" + strDate))
            {
                Directory.CreateDirectory(strPath + "\log\" + strDate);
            }
            //设置文件路径下的文件名称
            strPath = strPath + "\log\" + strDate + "\" + name + ".txt";
            if (logFile == null)
            {
                logFile = new FileStream(strPath, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.ReadWrite);//FileShare.ReadWrite允许以后打开文件读写
            }
            string strLine = Environment.NewLine;//换行符
            string strTime = DateTime.Now.ToString("HH:mm:ss");//当前时间格式
            string str = "";
            if (name != "upbeifensql" && name != "upedsql" && name != "lianjisql")
                str = strTime + strLine;
            str += value + strLine;
            if (name != "upbeifensql" && name != "upedsql" && name != "lianjisql")
                str += "*****************************************************************************************************************************" + strLine;
            #region old
            //if (name == "upbeifensql" || name == "upedsql" || name == "lianjisql")
            //{
            //    CompressionHelper compress = new CompressionHelper();
            //    str = compress.CompressToString(str);
            //    str += strLine;
            //} 
            #endregion
            byte[] bytes = System.Text.Encoding.Default.GetBytes(str);
            logFile.Position = logFile.Length;
            logFile.Write(bytes, 0, (int)bytes.Length);
            logFile.Close();
            logFile = null; 
            return strPath;
        }
    }
View Code

 6. 省市区三级联动js版(自定义控件) 

http://files.cnblogs.com/files/valiant1882331/%E7%9C%81%E5%B8%82%E5%8E%BF%E4%B8%89%E7%BA%A7%E8%81%94%E5%8A%A8-js%E7%89%88.zip

7.正则表达式去除html标签

public static string NoHTML(string Htmlstring)
        {
            //删除脚本      
            //删除HTML      
            Htmlstring = Regex.Replace(Htmlstring, @"<(.[^>]*)>", "", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"([
])[s]+", "", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"-->", "", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"<!--.*", "", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(quot|#34);", """, RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(amp|#38);", "&", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(lt|#60);", "<", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(gt|#62);", ">", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(nbsp|#160);", " ", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(iexcl|#161);", "xa1", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(cent|#162);", "xa2", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(pound|#163);", "xa3", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&(copy|#169);", "xa9", RegexOptions.IgnoreCase);
            Htmlstring = Regex.Replace(Htmlstring, @"&#(d+);", "", RegexOptions.IgnoreCase);
            Htmlstring = Htmlstring.Replace("<", "&lt;");
            Htmlstring = Htmlstring.Replace(">", "&gt;");
            Htmlstring = Htmlstring.Replace("
", "");
            return Htmlstring;
        }
View Code
原文地址:https://www.cnblogs.com/valiant1882331/p/4311790.html