C# 自己用到的几个参数转换方法

/// <summary>
/// Method:CommandHelper
/// Author:Liuyangyi
/// Data:2016-05-10
/// </summary>
public class Command
{

/// 提供标准 MD5 加密的方法
/// </summary>
/// <param name="cort"></param>
/// <returns></returns>
/// <summary>
/// 标准的md5密码加密算法
/// </summary>
/// <param name="toCryString"></param>
/// <returns></returns>
public static string Ext_GetStandMD5(string toCryString)
{
MD5CryptoServiceProvider hashmd5;
hashmd5 = new MD5CryptoServiceProvider();
return BitConverter.ToString(hashmd5.ComputeHash(Encoding.Default.GetBytes(toCryString.Trim()))).Replace("-", "").ToUpper();
}
/// <summary>
/// Unix时间戳
/// </summary>
/// <param name="dateTime"></param>
/// <returns></returns>
public static string DateTimeToUnixTimestamp()
{
DateTime dateTime = DateTime.Now;
var start = new DateTime(1970, 1, 1, 0, 0, 0, dateTime.Kind);
return Convert.ToInt64((dateTime - start).TotalSeconds).ToString();
}

/// <summary>
/// 时间格式
/// </summary>
/// <returns></returns>
public static string DateTimestamp()
{
DateTime dateTime = DateTime.Now;
return dateTime.ToString("yyyy-MM-dd HH:mm:ss");
}
/// <summary>
/// 除去数组中的空值和签名参数并以字母a到z的顺序排序
/// </summary>
/// <param name="dicArrayPre">过滤前的参数组</param>
/// <returns>过滤后的参数组</returns>
public static Dictionary<string, object> FilterPara(SortedDictionary<string, object> dicArrayPre)
{
Dictionary<string, object> dicArray = new Dictionary<string, object>();
foreach (KeyValuePair<string, object> temp in dicArrayPre)
{
if (temp.Key.ToLower() != "sign" && temp.Value != null && temp.Value != "")
{
dicArray.Add(temp.Key, temp.Value);
}
}

return dicArray;
}

/// <summary>
///
/// 排序加清除为空的参数
/// </summary>
/// <param name="o"></param>
/// <returns></returns>
public static Dictionary<String, Object> ToMap(Object o)
{
SortedDictionary<String, Object> map = new SortedDictionary<string, object>();

Type t = o.GetType();

PropertyInfo[] pi = t.GetProperties(BindingFlags.Public | BindingFlags.Instance);

foreach (PropertyInfo p in pi)
{
MethodInfo mi = p.GetGetMethod();

if (mi != null && mi.IsPublic)
{
map.Add(p.Name, mi.Invoke(o, new Object[] { }));
}
}

return FilterPara(map);

}

/// <summary>
/// 把数组所有元素，按照“参数=参数值”的模式用“&”字符拼接成字符串
/// </summary>
/// <param name="dicArray"></param>
/// <returns></returns>
public static string CreateLinkString(Dictionary<string, object> dicArray)
{
StringBuilder prestr = new StringBuilder();
foreach (KeyValuePair<string, object> temp in dicArray)
{
if (temp.Key.ToLower() != "sign" && temp.Key.ToLower() != "pid" && temp.Value != null && temp.Value != "")
{
prestr.Append(temp.Key + "=" + temp.Value.ToString().Replace(" ", "") + "&");
}
}
//去掉最後一個&字符
int nLen = prestr.Length;
prestr.Remove(nLen - 1, 1);

return prestr.ToString();
}

}