json字符串日期传到前端转换问题

public static string JsonConvertToDateLongString(string str)
{
str = Regex.Replace(str, @"\\/Date\((\d+)\)\\/", match =>
{
DateTime dt = new DateTime(1970, 1, 1);
dt = dt.AddMilliseconds(long.Parse(match.Groups[1].Value));
dt = dt.ToLocalTime();
return dt.ToString("yyyy-MM-dd HH:mm:ss");
});
return str;
}

 

https://www.cnblogs.com/yunfeifei/p/10724383.html
2. JavaScript时间戳的生成和转换

2.1 C# DateTime转换为JavaScript时间戳

System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1)); // 当地时区
long timeStamp = (long)(DateTime.Now - startTime).TotalMilliseconds; // 相差毫秒数
System.Console.WriteLine(timeStamp);

2.2 JavaScript时间戳转换为C# DateTime

long jsTimeStamp = 1478169023479;
System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1)); // 当地时区
DateTime dt = startTime.AddMilliseconds(jsTimeStamp);
System.Console.WriteLine(dt.ToString("yyyy/MM/dd HH:mm:ss:ffff"));

3. Unix时间戳相互转换

3.1 C# DateTime转换为Unix时间戳
System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1)); // 当地时区
long timeStamp = (long)(DateTime.Now - startTime).TotalSeconds; // 相差秒数
System.Console.WriteLine(timeStamp);

3.2 Unix时间戳转换为C# DateTime
long unixTimeStamp = 1478162177;
System.DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1)); // 当地时区
DateTime dt = startTime.AddSeconds(unixTimeStamp);
System.Console.WriteLine(dt.ToString("yyyy/MM/dd HH:mm:ss:ffff"));