727 lines
19 KiB
C#
727 lines
19 KiB
C#
using System.Collections;
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using System.Globalization;
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using System.Text.RegularExpressions;
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namespace JNPF.Common.Extension;
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/// <summary>
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/// 转换扩展类.
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/// </summary>
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public static partial class Extensions
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{
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#region 转换为long
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/// <summary>
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/// 将object转换为long,若转换失败,则返回0.不抛出异常.
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/// </summary>
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/// <param name="obj"></param>
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/// <returns></returns>
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public static long ParseToLong(this object obj)
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{
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try
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{
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return long.Parse(obj.ToString() ?? string.Empty);
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}
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catch
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{
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return 0L;
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}
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}
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/// <summary>
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/// 将object转换为long,若转换失败,则返回指定值.不抛出异常.
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/// </summary>
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/// <param name="str"></param>
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/// <param name="defaultValue"></param>
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/// <returns></returns>
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public static long ParseToLong(this string str, long defaultValue)
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{
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try
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{
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return long.Parse(str);
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}
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catch
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{
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return defaultValue;
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}
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}
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#endregion
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#region 转换为int
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/// <summary>
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/// 将object转换为int，若转换失败，则返回0。不抛出异常.
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/// </summary>
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/// <param name="str"></param>
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/// <returns></returns>
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public static int ParseToInt(this object str)
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{
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try
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{
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return Convert.ToInt32(str);
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}
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catch
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{
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return 0;
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}
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}
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/// <summary>
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/// 将object转换为int，若转换失败，则返回指定值。不抛出异常
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/// null返回默认值.
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/// </summary>
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/// <param name="str"></param>
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/// <param name="defaultValue"></param>
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/// <returns></returns>
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public static int ParseToInt(this object str, int defaultValue)
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{
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if (str == null)
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{
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return defaultValue;
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}
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try
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{
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return Convert.ToInt32(str);
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}
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catch
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{
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return defaultValue;
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}
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}
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#endregion
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#region 转换为short
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/// <summary>
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/// 将object转换为short，若转换失败，则返回0。不抛出异常.
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/// </summary>
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/// <param name="obj"></param>
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/// <returns></returns>
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public static short ParseToShort(this object obj)
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{
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try
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{
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return short.Parse(obj.ToString() ?? string.Empty);
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}
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catch
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{
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return 0;
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}
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}
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/// <summary>
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/// 将object转换为short，若转换失败，则返回指定值。不抛出异常.
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/// </summary>
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/// <param name="str"></param>
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/// <param name="defaultValue"></param>
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/// <returns></returns>
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public static short ParseToShort(this object str, short defaultValue)
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{
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try
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{
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return short.Parse(str.ToString() ?? string.Empty);
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}
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catch
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{
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return defaultValue;
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}
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}
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#endregion
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#region 转换为demical
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/// <summary>
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/// 将object转换为demical，若转换失败，则返回指定值。不抛出异常.
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/// </summary>
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/// <param name="str"></param>
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/// <param name="defaultValue"></param>
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/// <returns></returns>
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public static decimal ParseToDecimal(this object str, decimal defaultValue)
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{
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try
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{
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return decimal.Parse(str.ToString() ?? string.Empty);
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}
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catch
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{
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return defaultValue;
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}
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}
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/// <summary>
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/// 将object转换为demical，若转换失败，则返回0。不抛出异常.
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/// </summary>
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/// <param name="str"></param>
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/// <returns></returns>
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public static decimal ParseToDecimal(this object str)
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{
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try
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{
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return decimal.Parse(str.ToString() ?? string.Empty);
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}
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catch
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{
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return 0;
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}
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}
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#endregion
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#region 转化为bool
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/// <summary>
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/// 将object转换为bool，若转换失败，则返回false。不抛出异常.
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/// </summary>
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/// <param name="str"></param>
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/// <returns></returns>
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public static bool ParseToBool(this object str)
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{
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try
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{
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if (str == null)
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return false;
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bool? value = GetBool(str);
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if (value != null)
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return value.Value;
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bool result;
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return bool.TryParse(str.ToString(), out result) && result;
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}
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catch
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{
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return false;
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}
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}
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/// <summary>
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/// 将object转换为bool，若转换失败，则返回指定值。不抛出异常.
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/// </summary>
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/// <param name="str"></param>
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/// <param name="result"></param>
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/// <returns></returns>
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public static bool ParseToBool(this object str, bool result)
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{
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try
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{
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return bool.Parse(str.ToString() ?? string.Empty);
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}
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catch
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{
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return result;
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}
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}
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/// <summary>
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/// 获取布尔值.
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/// </summary>
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private static bool? GetBool(this object data)
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{
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switch (data.ToString()?.Trim().ToLower())
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{
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case "0":
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return false;
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case "1":
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return true;
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case "是":
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return true;
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case "否":
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return false;
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case "yes":
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return true;
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case "no":
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return false;
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default:
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return null;
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}
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}
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#endregion
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#region 转换为float
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/// <summary>
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/// 将object转换为float，若转换失败，则返回0。不抛出异常.
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/// </summary>
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/// <param name="str"></param>
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/// <returns></returns>
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public static float ParseToFloat(this object str)
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{
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try
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{
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return float.Parse(str.ToString() ?? string.Empty);
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}
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catch
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{
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return 0;
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}
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}
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/// <summary>
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/// 将object转换为float，若转换失败，则返回指定值。不抛出异常.
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/// </summary>
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/// <param name="str"></param>
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/// <param name="result"></param>
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/// <returns></returns>
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public static float ParseToFloat(this object str, float result)
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{
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try
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{
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return float.Parse(str.ToString() ?? string.Empty);
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}
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catch
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{
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return result;
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}
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}
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#endregion
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#region 转换为Guid
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/// <summary>
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/// 将string转换为Guid，若转换失败，则返回Guid.Empty。不抛出异常.
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/// </summary>
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/// <param name="str"></param>
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/// <returns></returns>
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public static Guid ParseToGuid(this string str)
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{
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try
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{
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return new Guid(str);
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}
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catch
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{
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return Guid.Empty;
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}
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}
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#endregion
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#region 转换为DateTime
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/// <summary>
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/// 将string转换为DateTime，若转换失败，则返回日期最小值。不抛出异常.
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/// </summary>
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/// <param name="str"></param>
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/// <returns></returns>
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public static DateTime ParseToDateTime(this string str)
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{
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try
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{
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if (string.IsNullOrWhiteSpace(str))
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{
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return DateTime.MinValue;
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}
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if (str.Contains("-") || str.Contains("/"))
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{
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return DateTime.Parse(str);
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}
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int length = str.Length;
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return length switch
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{
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4 => DateTime.ParseExact(str, "yyyy", CultureInfo.CurrentCulture),
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6 => DateTime.ParseExact(str, "yyyyMM", CultureInfo.CurrentCulture),
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8 => DateTime.ParseExact(str, "yyyyMMdd", CultureInfo.CurrentCulture),
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10 => DateTime.ParseExact(str, "yyyyMMddHH", CultureInfo.CurrentCulture),
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12 => DateTime.ParseExact(str, "yyyyMMddHHmm", CultureInfo.CurrentCulture),
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// ReSharper disable once StringLiteralTypo
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14 => DateTime.ParseExact(str, "yyyyMMddHHmmss", CultureInfo.CurrentCulture),
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// ReSharper disable once StringLiteralTypo
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_ => DateTime.ParseExact(str, "yyyyMMddHHmmss", CultureInfo.CurrentCulture)
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};
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}
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catch
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{
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return DateTime.MinValue;
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}
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}
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/// <summary>
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/// 将时间戳转为DateTime.
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/// </summary>
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/// <param name="timeStamp">时间戳.</param>
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/// <returns></returns>
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public static DateTime TimeStampToDateTime(this long timeStamp)
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{
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try
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{
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DateTimeOffset dto = DateTimeOffset.FromUnixTimeMilliseconds(timeStamp);
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return dto.ToLocalTime().DateTime;
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}
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catch (Exception)
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{
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throw;
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}
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}
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/// <summary>
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/// 将时间戳转为DateTime.
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/// </summary>
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/// <param name="timeStamp">时间戳.</param>
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/// <returns></returns>
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public static DateTime TimeStampToDateTime(this string timeStamp)
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{
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try
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{
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DateTimeOffset dto = DateTimeOffset.FromUnixTimeMilliseconds(Convert.ToInt64(timeStamp));
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return dto.ToLocalTime().DateTime;
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}
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catch (Exception)
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{
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throw;
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}
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}
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/// <summary>
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/// 将 DateTime? 转换为 DateTime.
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/// </summary>
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/// <param name="date"></param>
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/// <returns></returns>
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public static DateTime ParseToDateTime(this DateTime? date)
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{
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return Convert.ToDateTime(date);
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}
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/// <summary>
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/// 将 DateTime 根据指定格式转换.
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/// </summary>
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/// <param name="date">时间.</param>
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/// <param name="format">格式字符串.</param>
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/// <returns></returns>
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public static DateTime ParseToDateTime(this DateTime? date, string format)
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{
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return Convert.ToDateTime(string.Format("{0:" + format + "}", date));
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}
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/// <summary>
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/// 将 DateTime 根据指定格式转换.
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/// </summary>
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/// <param name="date">时间.</param>
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/// <param name="format">格式字符串.</param>
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/// <returns></returns>
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public static DateTime ParseToDateTime(this DateTime date, string format)
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{
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return Convert.ToDateTime(string.Format("{0:" + format + "}", date));
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}
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/// <summary>
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/// 将string转换为DateTime，若转换失败，则返回默认值.
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/// </summary>
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/// <param name="str"></param>
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/// <param name="defaultValue"></param>
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/// <returns></returns>
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public static DateTime ParseToDateTime(this string str, DateTime? defaultValue)
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{
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try
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{
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if (string.IsNullOrWhiteSpace(str))
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{
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return defaultValue.GetValueOrDefault();
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}
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if (str.Contains("-") || str.Contains("/"))
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{
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return DateTime.Parse(str);
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}
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int length = str.Length;
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return length switch
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{
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4 => DateTime.ParseExact(str, "yyyy", CultureInfo.CurrentCulture),
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6 => DateTime.ParseExact(str, "yyyyMM", CultureInfo.CurrentCulture),
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8 => DateTime.ParseExact(str, "yyyyMMdd", CultureInfo.CurrentCulture),
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10 => DateTime.ParseExact(str, "yyyyMMddHH", CultureInfo.CurrentCulture),
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12 => DateTime.ParseExact(str, "yyyyMMddHHmm", CultureInfo.CurrentCulture),
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// ReSharper disable once StringLiteralTypo
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14 => DateTime.ParseExact(str, "yyyyMMddHHmmss", CultureInfo.CurrentCulture),
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// ReSharper disable once StringLiteralTypo
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_ => DateTime.ParseExact(str, "yyyyMMddHHmmss", CultureInfo.CurrentCulture)
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};
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}
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catch
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{
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return defaultValue.GetValueOrDefault();
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}
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}
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#endregion
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#region 转换为string
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/// <summary>
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/// 将object转换为string，若转换失败，则返回""。不抛出异常.
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/// </summary>
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/// <param name="obj"></param>
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/// <returns></returns>
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public static string ParseToString(this object obj)
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{
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try
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{
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return obj == null ? string.Empty : obj.ToString()!;
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}
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catch
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{
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return string.Empty;
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}
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}
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/// <summary>
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/// 将object转换为string.
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="obj"></param>
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/// <returns></returns>
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public static string ParseToStrings<T>(this object obj)
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{
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try
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{
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if (obj is IEnumerable<T> list)
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{
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return string.Join(",", list);
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}
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return obj.ToString()!;
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}
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catch
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{
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return string.Empty;
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}
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}
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#endregion
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#region 转换为double
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/// <summary>
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/// 将object转换为double，若转换失败，则返回0。不抛出异常.
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/// </summary>
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/// <param name="obj"></param>
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/// <returns></returns>
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public static double ParseToDouble(this object obj)
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{
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try
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{
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return double.Parse(obj.ToString() ?? string.Empty);
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}
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catch
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{
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return 0;
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}
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}
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/// <summary>
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/// 将object转换为double，若转换失败，则返回指定值。不抛出异常.
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/// </summary>
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/// <param name="str"></param>
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/// <param name="defaultValue"></param>
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/// <returns></returns>
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public static double ParseToDouble(this object str, double defaultValue)
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{
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try
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{
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return double.Parse(str.ToString() ?? string.Empty);
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}
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catch
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{
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return defaultValue;
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}
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}
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#endregion
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#region 强制转换类型
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/// <summary>
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/// 强制转换类型.
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/// </summary>
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/// <typeparam name="TResult"></typeparam>
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/// <param name="source"></param>
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/// <returns></returns>
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public static IEnumerable<TResult> CastSuper<TResult>(this IEnumerable source)
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{
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return from object item in source select (TResult)Convert.ChangeType(item, typeof(TResult));
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}
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#endregion
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#region 转换为ToUnixTime
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public static long ParseToUnixTime(this DateTime nowTime)
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{
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DateTimeOffset dto = new DateTimeOffset(nowTime);
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return dto.ToUnixTimeMilliseconds();
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}
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#endregion
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#region 转换为帕斯卡命名法
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/// <summary>
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/// 将字符串转为帕斯卡命名法.
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/// </summary>
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/// <param name="original">源字符串.</param>
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/// <returns></returns>
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public static string ParseToPascalCase(this string original)
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{
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Regex invalidCharsRgx = new Regex("[^_a-zA-Z0-9]");
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Regex whiteSpace = new Regex(@"(?<=\s)");
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Regex startsWithLowerCaseChar = new Regex("^[a-z]");
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Regex firstCharFollowedByUpperCasesOnly = new Regex("(?<=[A-Z])[A-Z0-9]+$");
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Regex lowerCaseNextToNumber = new Regex("(?<=[0-9])[a-z]");
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Regex upperCaseInside = new Regex("(?<=[A-Z])[A-Z]+?((?=[A-Z][a-z])|(?=[0-9]))");
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// 用undescore替换空白，然后用空字符串替换所有无效字符
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var pascalCase = invalidCharsRgx.Replace(whiteSpace.Replace(original, "_"), string.Empty)
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// 用下划线分割
|
||
.Split(new char[] { '_' }, StringSplitOptions.RemoveEmptyEntries)
|
||
|
||
// 首字母设置为大写
|
||
.Select(w => startsWithLowerCaseChar.Replace(w, m => m.Value.ToUpper()))
|
||
|
||
// 如果没有下一个小写字母(ABC -> Abc)，则将第二个及所有后面的大写字母替换为小写字母
|
||
.Select(w => firstCharFollowedByUpperCasesOnly.Replace(w, m => m.Value.ToLower()))
|
||
|
||
// 数字后面的第一个小写字母 设置大写(Ab9cd -> Ab9Cd)
|
||
.Select(w => lowerCaseNextToNumber.Replace(w, m => m.Value.ToUpper()))
|
||
|
||
// 第二个小写字母和下一个大写字母，除非最后一个字母后跟任何小写字母 (ABcDEf -> AbcDef)
|
||
.Select(w => upperCaseInside.Replace(w, m => m.Value.ToLower()));
|
||
|
||
return string.Concat(pascalCase);
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region IsEmpty
|
||
|
||
/// <summary>
|
||
/// 是否为空.
|
||
/// </summary>
|
||
/// <param name="value">值.</param>
|
||
public static bool IsEmpty(this string? value)
|
||
{
|
||
return string.IsNullOrWhiteSpace(value);
|
||
}
|
||
|
||
/// <summary>
|
||
/// 是否为空.
|
||
/// </summary>
|
||
/// <param name="value">值.</param>
|
||
public static bool IsEmpty(this Guid? value)
|
||
{
|
||
if (value == null)
|
||
return true;
|
||
return IsEmpty(value.Value);
|
||
}
|
||
|
||
/// <summary>
|
||
/// 是否为空.
|
||
/// </summary>
|
||
/// <param name="value">值.</param>
|
||
public static bool IsEmpty(this Guid value)
|
||
{
|
||
if (value == Guid.Empty)
|
||
return true;
|
||
return false;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 是否为空.
|
||
/// </summary>
|
||
/// <param name="value">值.</param>
|
||
public static bool IsEmpty(this object value)
|
||
{
|
||
if (value != null && !string.IsNullOrEmpty(value.ToString()))
|
||
{
|
||
return false;
|
||
}
|
||
else
|
||
{
|
||
return true;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 判断是否为Null或者空.
|
||
/// </summary>
|
||
/// <param name="obj">对象.</param>
|
||
/// <returns></returns>
|
||
public static bool IsNullOrEmpty(this object obj)
|
||
{
|
||
if (obj == null)
|
||
return true;
|
||
else
|
||
{
|
||
string objStr = obj.ToString();
|
||
return string.IsNullOrEmpty(objStr);
|
||
}
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region IsNotEmptyOrNull
|
||
|
||
/// <summary>
|
||
/// 不为空.
|
||
/// </summary>
|
||
/// <param name="thisValue"></param>
|
||
/// <returns></returns>
|
||
public static string ObjToString(this object thisValue)
|
||
{
|
||
if (thisValue != null) return thisValue.ToString()!.Trim();
|
||
return string.Empty;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 不为空.
|
||
/// </summary>
|
||
/// <param name="thisValue"></param>
|
||
/// <returns></returns>
|
||
public static bool IsNotEmptyOrNull(this object thisValue)
|
||
{
|
||
return ObjToString(thisValue) != string.Empty && ObjToString(thisValue) != "undefined" && ObjToString(thisValue) != "null";
|
||
}
|
||
/// <summary>
|
||
/// 是否为空
|
||
/// added by ly on 20230703
|
||
/// </summary>
|
||
/// <param name="thisValue"></param>
|
||
/// <returns></returns>
|
||
public static bool IsNull(this object thisValue)
|
||
{
|
||
return thisValue == null;
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region List
|
||
|
||
/// <summary>
|
||
/// 嵌套List解析
|
||
/// 仅限于列表查询条件多选.
|
||
/// </summary>
|
||
/// <param name="list"></param>
|
||
/// <returns></returns>
|
||
public static List<string> ParseToNestedList(this List<List<string>> list)
|
||
{
|
||
List<string> result = new List<string>();
|
||
if (list != null && list.Count > 0)
|
||
{
|
||
foreach (var item in list)
|
||
result.Add(item.Last());
|
||
}
|
||
return result;
|
||
}
|
||
|
||
#endregion
|
||
} |