28
07/2014
c#工具包代码
我有一个习惯，学习一种新的语言，希望会有一种对应的工具包，这样开发效率会加快。C#刚学不久，目前构建了一个小工具包如下。工具包持续更新，放在KangryUtils包中。
Functions.cs文件：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
namespace KangryUtils
{
class Functions
{
/*******************************************************************************************
* 时间相关函数
*******************************************************************************************/
/// <summary>
/// 验证日期是否正确
/// </summary>
/// <param name="year">年份，int类型</param>
/// <param name="month">月份，int类型</param>
/// <param name="day">日期，int类型</param>
/// <returns>布尔值</returns>
public static bool checkDate(int year, int month, int day)
{
try
{
DateTime.Parse(year + "-" + month + "-" + day);
}
catch (Exception e)
{
return false;
}
return true;
}
/// <summary>
/// 验证日期是否正确
/// </summary>
/// <param name="dateStr">表示日期的字符串</param>
/// <returns>布尔值</returns>
public static bool checkDate(string dateStr)
{
try
{
DateTime.Parse(dateStr);
}
catch (Exception e)
{
return false;
}
return true;
}
/// <summary>
/// 获取当前时间戳(秒数)
/// </summary>
/// <returns></returns>
public static int getTimeStamp()
{
return getTimeStamp(DateTime.Now);
}
/// <summary>
/// 获得特定的时间戳
/// </summary>
/// <param name="time">DateTime类型的时间</param>
/// <returns></returns>
public static int getTimeStamp(DateTime time)
{
DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));
return Convert.ToInt32((time - startTime).TotalSeconds);
}
/// <summary>
/// 获得特定的时间戳
/// </summary>
/// <param name="time">字符串表示的时间</param>
/// <returns>若时间字符串格式正确，则返回时间戳，否则返回-1</returns>
public static int getTimeStamp(string time)
{
int timestamp=-1;
try
{
DateTime dt = Convert.ToDateTime(time);
timestamp = getTimeStamp(dt);
}
catch (Exception e)
{
Log.errorLog("Fail to convert to timeStamp from a string: " + time);
}
return timestamp;
}
/// <summary>
/// 通过时间戳获得DateTime
/// </summary>
/// <param name="timeStamp">时间戳</param>
/// <returns></returns>
public static DateTime getDateTime(int timeStamp)
{
DateTime dtStart = TimeZone.CurrentTimeZone.ToLocalTime(new DateTime(1970, 1, 1));
TimeSpan ts = new TimeSpan(0, 0, timeStamp);
return dtStart.Add(ts);
}
/// <summary>
/// 获得DateTime
/// </summary>
/// <param name="time">字符串时间</param>
/// <returns></returns>
public static DateTime getDateTime(string time)
{
return getDateTime(getTimeStamp(time));
}
/// <summary>
/// 转化时间格式
/// </summary>
/// <param name="sDt">原有的时间字符串</param>
/// <param name="format">要转化的格式串</param>
/// <returns>若成功，返回转换好的时间字符串，否则返回null</returns>
public static string formatDateTime(string sDt, string format = "yyyy-MM-dd HH:mm:ss")
{
string sDateTime = null;
try
{
sDateTime = formatDateTime(Convert.ToDateTime(sDt), format);
}
catch
{
Log.errorLog("Fail to convert the time string: " + sDt + " to a given format: " + format);
}
return null;
}
/// <summary>
/// 转化时间格式
/// </summary>
/// <param name="sDt">原有的DateTime格式时间</param>
/// <param name="format">要转化的格式串</param>
/// <returns>若成功，返回转换好的时间字符串，否则返回null</returns>
public static string formatDateTime(DateTime dt, string format = "yyyy-MM-dd HH:mm:ss")
{
string sDateTime=null;
try
{
sDateTime = dt.ToString(format);
}
catch (Exception e)
{
Log.errorLog("Fail to convert the time to a given format: " + format);
}
return sDateTime;
}
/// <summary>
/// 通过时间戳获得特定格式的时间
/// </summary>
/// <param name="iTimeStamp"></param>
/// <param name="format"></param>
/// <returns></returns>
public static string formatDateTime(int iTimeStamp, string format = "yyyy-MM-dd HH:mm:ss")
{
return formatDateTime(getDateTime(iTimeStamp), format);
}
/********************************************************************************************
* 文件相关函数
********************************************************************************************/
/// <summary>
/// 创建文件夹路径
/// </summary>
/// <param name="filePath">文件夹路径</param>
/// <returns>是否创建成功</returns>
public static bool makeDir(string filePath)
{
bool flag = true;
System.IO.FileInfo fi = new System.IO.FileInfo(filePath);
if (!fi.Directory.Exists)
{
try
{
fi.Directory.Create();
}
catch (Exception e)
{
Log.traceLog("Fail to build directory: " + fi.Directory.ToString() + e.Message); //此处不用错误日志是防止递归调用
flag = false;
}
}
return flag;
}
/// <summary>
/// 创建文件
/// </summary>
/// <param name="filePath">要创建的文件路径</param>
/// <param name="append">是否往后追加</param>
/// <returns>streamWriter</returns>
public static StreamWriter makeFile(string filePath, bool append=true)
{
if(!makeDir(filePath))
{
return null;
}
StreamWriter sw = null;
try
{
sw = new StreamWriter(filePath, append);
}
catch (Exception e)
{
Log.traceLog("Fail to build a file: " + filePath + e.Message); //此处不用错误日志是防止递归调用
}
return sw;
}
}
}Log.cs文件：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Diagnostics;
using System.IO;
namespace KangryUtils
{
class Log
{
//跟踪的日志
public static void traceLog(string content, bool bWriteToFile = false, string logFile = "")
{
string formatDate = Functions.formatDateTime(DateTime.Now, "yyyy-MM-dd HH:mm:ss");
TextWriterTraceListener fileT = null;
StreamWriter sw = null;
if (bWriteToFile)
{
if (logFile != "")
{
sw = Functions.makeFile(logFile);
}
else
{
string year = formatDate.Substring(0, 4);
string month = formatDate.Substring(5, 2);
string day = formatDate.Substring(8, 2);
sw = Functions.makeFile("traceLog/" + year + "/" + month + "/" + year + "-" + month + "-" + day + ".log");
}
}
if (sw != null)
{
fileT = new TextWriterTraceListener(sw);
Trace.Listeners.Add(fileT);
}
TextWriterTraceListener t = new TextWriterTraceListener(Console.Out);
Trace.Listeners.Add(t);
Trace.AutoFlush = true;
Trace.WriteLine("[" + formatDate + "]");
Trace.Indent();
Trace.WriteLine(content, "Trace");
Trace.Unindent();
Trace.Listeners.Remove(t);
if (sw != null)
{
Trace.Listeners.Remove(fileT);
sw.Close();
}
}
//错误日志，同时写入文件
public static void errorLog(string content, bool bWriteToFile = true, string logFile = "")
{
string formatDate=Functions.formatDateTime(DateTime.Now, "yyyy-MM-dd HH:mm:ss");
TextWriterTraceListener fileT=null;
StreamWriter sw=null;
if (bWriteToFile)
{
if (logFile != "")
{
sw = Functions.makeFile(logFile);
}
else
{
string year = formatDate.Substring(0, 4);
string month = formatDate.Substring(5, 2);
string day = formatDate.Substring(8, 2);
sw = Functions.makeFile("errorLog/" + year + "/" + month + "/" + year + "-" + month + "-" + day + ".log");
}
}
if (sw != null)
{
fileT = new TextWriterTraceListener(sw);
Trace.Listeners.Add(fileT);
}
TextWriterTraceListener t = new TextWriterTraceListener(Console.Out);
Trace.Listeners.Add(t);
Trace.AutoFlush = true;
Trace.WriteLine("[" + formatDate + "]");
Trace.Indent();
Trace.WriteLine(content, "Error");
Trace.Unindent();
Trace.Listeners.Remove(t);
if (sw != null)
{
Trace.Listeners.Remove(fileT);
sw.Close();
}
}
}
}Db.cs文件：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Configuration;
using System.Data.SqlClient;
using System.Data;
namespace KangryUtils
{
class Db
{
private SqlConnection con;
public Db()
{
string ConnectionString = ConfigurationManager.ConnectionStrings["DBConnection"].ConnectionString;
try
{
con = new SqlConnection(ConnectionString);
}
catch (Exception e)
{
Log.errorLog("Fail to connect to database!\n" + e.Message);
}
}
public Db(string connectionString)
{
try
{
con = new SqlConnection(connectionString);
}
catch (Exception e)
{
Log.errorLog("Fail to connect to database!\n" + e.Message);
}
}
//关闭数据库
public void Close()
{
if (con.State != ConnectionState.Closed)
{
try
{
con.Close();
}
catch (Exception e)
{
Log.errorLog("Fail to close database!\n" + e.Message);
}
}
}
//属性，判断连接对象的状态并打开连接对象
public SqlConnection Con
{
get
{
switch (con.State)
{
case ConnectionState.Broken:
try
{
con.Close(); //先正常关闭，释放资源
}
catch(Exception e)
{
Log.errorLog("Fail to close database!\n"+e.Message);
}
try
{
con.Open();
}
catch(Exception e)
{
Log.errorLog("Fail to open database!\n"+e.Message);
}
break;
case ConnectionState.Closed:
try
{
con.Open();
}
catch(Exception e)
{
Log.errorLog("Fail to open database!\n"+e.Message);
}
break;
case ConnectionState.Connecting:
case ConnectionState.Executing:
case ConnectionState.Fetching:
case ConnectionState.Open:
break;
default:
break;
}
return con;
}
set { con = value; }
}
}
}在用工具包之前，需要引入连个引用：system.web和system.web.extension;
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