Get a few hours before the current time

Source: Internet
Author: User

When you make a time filter, you want to specify a default value for the start time and end time, so there is a requirement.

How to get the first few hours of the current time as the start time, the current time as the end time.

The code is as follows:

/** Create on Java side * */

String startdate = null;
String endDate = null;

SimpleDateFormat SDF = new SimpleDateFormat ("Yyyy-mm-dd HH:mm:ss");
Calendar calendar = Calendar.getinstance ();
Calendar.settime (New Date ());

EndDate = Sdf.format (Calendar.gettime ());

Calendar.add (Calendar. Hour_of_day,-3);

StartDate = Sdf.format (Calendar.gettime ());

Model.addattribute ("StartDate", StartDate);
Model.addattribute ("EndDate", endDate);


/** get on JSP side * */ value= "${startdate}"value= "${enddate}"

Get a few hours before the current time

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