hibernate 查询时 对日期的比较

Hibernate's Built-in criterion: Between (using with Date)
In this section, you will learn to use "between" i.e.one of the built-in hibernate criterions. Restriction class provides built-in criterion via static factory methods. One important method of the Restriction class is between : which is used to apply a "between" constraint to the named property

In this tutorial, "Between" is used with the date object. It takes three parameters e.g. between("property_name",startDate,endDate)

Here is the code of the class using "between" with the Date class :
package roseindia.tutorial.hibernate;

import org.hibernate.*; import org.hibernate.criterion.*; import org.hibernate.cfg.*; import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.*; /** * @author Deepak Kumar * * http://www.roseindia.net Hibernate Criteria Query Example * */public class HibernateCriteriaQueryBetweenDate { public static void main(String[] args) { Session session = null; try { // This step will read hibernate.cfg.xml and prepare hibernate for // use SessionFactory sessionFactory = new Configuration().configure() .buildSessionFactory(); session = sessionFactory.openSession(); //Criteria Query Example Criteria crit = session.createCriteria(Insurance.class); DateFormat format = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss"); Date startDate = (Date)format.parse("2005-01-01 00:00:00"); Date endDate = (Date)format.parse("2005-03-03 00:00:00"); crit.add(Expression.between ("investementDate", new Date(startDate.getTime()), new Date(endDate.getTime()))); // Between date condition crit.setMaxResults(5); // Restricts the max rows to 5 List insurances = crit.list(); for(Iterator it = insurances.iterator();it.hasNext();){ Insurance insurance = (Insurance) it.next(); System.out.println(" ID: " + insurance.getLngInsuranceId()); System.out.println(" Name: " + insurance.getInsuranceName()); System.out.println(" Amount: " + insurance.getInvestementAmount()); System.out.println(" Date: " + insurance.getInvestementDate()); } session.close(); } catch (Exception e) { System.out.println(e.getMessage()); } finally { } } } 

Download this code:

Output:
log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment).

log4j:WARN Please initialize the log4j system properly.

Hibernate: select this_.ID as ID0_0_, this_.insurance_name as insurance2_0_0_, this_.invested_amount as invested3_0_0_,
this_.investement_date as investem4_0_0_ from insurance this_ where this_.investement_date between ? and ? limit ?

ID: 1

Name: Car Insurance

Amount: 1000

Date: 2005-01-05 00:00:00.0

ID: 4

Name: Car Insurance

Amount: 2500

Date: 2005-01-01 00:00:00.0

ID: 7

Name: Travel Insurance

Amount: 2000

Date: 2005-02-02 00:00:00.0

ID: 8

Name: Travel Insurance

Amount: 600

Date: 2005-03-03 00:00:00.0