Convert Java String to sql Timestamp

Question

Got a String coming in with this format   YYYY-MM-DD-HH MM SS NNNNNN The Timestamp is coming from a DB2 database  I need to parse it into a java sql Timestamp and NOT lose any precison  So far I ve been unable to find existing code to parse that far out to microseconds  SimpleDateFormat returns a Date and only parses to milliseconds  Looked at JodaTime briefly and didn t see that would work either

User · Answer

Here s the intended way to convert a String to a Date   String timestamp    2011-10-02-18 48 05 123   DateFormat df   new SimpleDateFormat  yyyy-MM-dd-kk mm ss SSS    Date parsedDate   df parse timestamp     Admittedly  it only has millisecond resolution  but in all services slower than Twitter  that s all you ll need  especially since most machines don t even track down to the actual nanoseconds

User · Answer

You could use Timestamp valueOf String   The documentation states that it understands timestamps in the format yyyy-mm-dd hh mm ss  f      so you might need to change the field separators in your incoming string   Then again  if you re going to do that then you could just parse it yourself and use the setNanos method to store the microseconds

User · Answer

If you get time as string in format such as 1441963946053 you simply could do something as following     String timestamp  Long miliseconds   Long valueOf timestamp   Timestamp ti   new Timestamp miliseconds

User · Answer

Have you tried using Timestamp valueOf String   It looks like it should do almost exactly what you want - you just need to change the separator between your date and time to a space  and the ones between hours and minutes  and minutes and hours  to colons   import java sql     public class Test       public static void main String   args            String text    2011-10-02 18 48 05 123456           Timestamp ts   Timestamp valueOf text           System out println ts getNanos               Assuming you ve already validated the string length  this will convert to the right format   static String convertSeparators String input        char   chars   input toCharArray        chars 10             chars 13             chars 16             return new String chars       Alternatively  parse down to milliseconds by taking a substring and using Joda Time or SimpleDateFormat  I vastly prefer Joda Time  but your mileage may vary   Then take the remainder of the string as another string and parse it with Integer parseInt  You can then combine the values pretty easily   Date date   parseDateFromFirstPart    int micros   parseJustLastThreeDigits     Timestamp ts   new Timestamp date getTime     ts setNanos ts getNanos     micros   1000

User · Answer

I believe you need to do this     Convert everythingButNano using SimpleDateFormat or the like to everythingDate  Convert nano using Long valueof nano  Convert everythingDate to a Timestamp with new Timestamp everythingDate getTime    Set the Timestamp nanos with Timestamp setNano     Option 2 Convert to the date format pointed out in Jon Skeet s answer and use that

[java] Convert Java String to sql.Timestamp

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