C#常用公共方法
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public static class CommonHelper
{
/// <summary>
/// 是否是手机请求
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
public static bool IsAppRequst(HttpContextBase context)
{
try
{
HttpRequestBase Request = context.Request;
string str_u = Request.ServerVariables["HTTP_USER_AGENT"];
Regex b = new Regex(@"android.+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino", RegexOptions.IgnoreCase | RegexOptions.Multiline);
Regex v = new Regex(@"1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(di|rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-", RegexOptions.IgnoreCase | RegexOptions.Multiline);
if (!(b.IsMatch(str_u) || v.IsMatch(str_u.Substring(0, 4))))
{
return false;
}
else
{
return true;
}
}
catch (Exception)
{
return false;
}
}
private static char[] constant ={
'0','1','2','3','4','5','6','7','8','9',
'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z',
'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'
};
/// <summary>
/// 生成指定随机数
/// </summary>
/// <param name="Length"></param>
/// <returns></returns>
public static string GenerateRandom(int Length)
{
System.Text.StringBuilder newRandom = new System.Text.StringBuilder(62);
Random rd = new Random();
for (int i = 0; i < Length; i++)
{
newRandom.Append(constant[rd.Next(62)]);
}
return newRandom.ToString();
}
/// <summary>
/// 将字json字符串转换为对象集合
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="JsonStr"></param>
/// <returns></returns>
public static List<T> ScriptSerialize<T>(this string JsonStr)
{
if (!string.IsNullOrEmpty(JsonStr))
{
JavaScriptSerializer Serializer = new JavaScriptSerializer();
Serializer.MaxJsonLength = Int32.MaxValue;
List<T> objs = Serializer.Deserialize<List<T>>(JsonStr);
return objs;
}
else
{
return null;
}
}
/// <summary>
/// 将对象转换为json
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="t"></param>
/// <returns></returns>
public static string ScriptSerialize<T>(T t)
{
JavaScriptSerializer js = new JavaScriptSerializer();
return js.Serialize(t);
}
public static void ToPagingProcess<T>(this IEnumerable<T> item, int pageSize, Action<IEnumerable<T>> singlePageList) where T : class
{
if (item != null && item.Count() > 0)
{
var cnt = item.Count();
var totalPages = item.Count() / pageSize;
if (cnt % pageSize > 0) totalPages += 1;
for (int pageIndex = 1; pageIndex <= totalPages; pageIndex++)
{
var currentPageItems = item.Skip((pageIndex - 1) * pageSize).Take(pageSize);
singlePageList(currentPageItems);
}
}
}
#region 时间
/// <summary>
/// 最大时间
/// </summary>
/// <param name="dateTime"></param>
/// <returns></returns>
public static DateTime? GetMaxDateTime(DateTime? dateTime)
{
if (dateTime.HasValue)
{
return dateTime.Value.Date.AddDays(1).AddMilliseconds(-1);
}
else
{
return dateTime;
}
}
/// <summary>
/// 最小时间
/// </summary>
/// <param name="dateTime"></param>
/// <returns></returns>
public static DateTime? GetMinDateTime(DateTime? dateTime)
{
if (dateTime.HasValue)
{
return dateTime.Value.Date;
}
else
{
return dateTime;
}
}
#endregion
}
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