gzf/src/com/app/service/CountServiceImpl.java

package com.app.service;

import com.app.bean.Count;
import org.hibernate.HibernateException;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.criterion.DetachedCriteria;
import org.hibernate.criterion.Projections;
import org.hibernate.criterion.Restrictions;
import org.hibernate.transform.Transformers;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.orm.hibernate3.HibernateCallback;
import org.springframework.orm.hibernate3.HibernateTemplate;
import org.springframework.stereotype.Service;

import java.sql.SQLException;
import java.util.List;

@Service
public class CountServiceImpl implements CountService{
    @Autowired
    private HibernateTemplate hibernateTemplate;

    @Override
    public int count(String startTime, String endTime,Class c) {
        List list= hibernateTemplate.findByCriteria(DetachedCriteria.forClass(c).
                add(Restrictions.ge("created",startTime))
                .add(Restrictions.le("created",endTime))
                .setProjection(Projections.rowCount()));
        if(list.isEmpty()){
            return 0;
        }else{
            return (Integer) list.get(0);
        }
    }

    @SuppressWarnings("unchecked")
    @Override
    public List<Count> countWithDate(final String startTime, final String endTime, final Class c) {
        return (List<Count>) hibernateTemplate.execute(new HibernateCallback() {
            @Override
            public Object doInHibernate(Session session) throws HibernateException, SQLException {
                StringBuffer sql=new StringBuffer();
                sql.append("select date, count\n")
                        .append("from (\n")
                        .append("         select substring(created, 1, 10) as date, count(*) as count\n")
                        .append("         from users\n")
                        .append("         group by substring(created, 1, 10)\n")
                        .append("         union all\n")
                        .append("         SELECT CONVERT(VARCHAR(10), dateadd(d, number, DATENAME(year, GETDATE()) + '-01-01'), 23) AS date, 0 as count\n")
                        .append("         FROM master..spt_values\n")
                        .append("         WHERE type = 'p'\n")
                        .append("           AND number between 0 and datediff(day, DATENAME(year, GETDATE()) + '-01-01', getdate())\n")
                        .append("           and CONVERT(VARCHAR(10), dateadd(d, number, DATENAME(year, GETDATE()) + '-01-01'), 23) not in\n")
                        .append("               (select substring(created, 1, 10) as date from users group by substring(created, 1, 10))) b\n")
                        .append("where date between\n")
                        .append("          '")
                        .append(startTime, 0, 10)
                        .append("' and '")
                        .append(endTime, 0, 10)
                        .append("'\n")
                        .append("order by date");
                Query query=session.createSQLQuery(sql.toString());
                return query.setResultTransformer(Transformers.aliasToBean(Count.class)).list();
            }
        });
    }
}