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; } }
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; } }
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; }
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; } }
6. 省市区三级联动js版(自定义控件)
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, @"([\r\n])[\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("<", "<"); Htmlstring = Htmlstring.Replace(">", ">"); Htmlstring = Htmlstring.Replace("\r\n", ""); return Htmlstring; }