我在使用日期输入执行自定义查询时遇到问题。 这是我的sql:
<sql
id="MyEntityFinder.findByIns">
<![CDATA[
SELECT {EX_MyEntity.*}
FROM EX_MyEntity
WHERE
(EX_MyEntity.myDate >= ? AND EX_MyEntity.myDate <= ?)
]]>
</sql>
这是我的发现者MyEntityFinderImpl:
public class MyEntityFinderImpl extends BasePersistenceImpl<MyEntity> implements MyEntityFinder{
public static final String FIND_BY_INS = "MyEntityFinder.findByIns";
public List<MyEntity> findByIns(Date from, Date to, int begin, int end) throws SystemException{
Session session = null;
try {
session = openSession();
String sql = CustomSQLUtil.get(FIND_BY_INS);
SQLQuery q = session.createSQLQuery(sql);
q.setCacheable(false);
q.addEntity("EX_MyEntity", MyEntityImpl.class);
QueryPos qPos = QueryPos.getInstance(q);
qPos.add("%"+from+"%");
qPos.add("%"+to+"%");
return (List<MyEntity>) QueryUtil.list(q, getDialect(), begin, end);
} catch (Exception e) {
throw new SystemException(e);
} finally {
closeSession(session);
}
}
}
以及我在jsp页面中如何调用它:
Calendar aMonthAgo = Calendar.getInstance();
aMonthAgo.set(Calendar.MONTH, aMonthAgo.get(Calendar.MONTH) - 1);
Calendar now = Calendar.getInstance();
List<MyEntity> monthly = MyEntityLocalServiceUtil.findByIns(
new java.sql.Date(aMonthAgo.getTimeInMillis()),
new java.sql.Date(now.getTimeInMillis()), 0,
MyEntityLocalServiceUtil.getMyEntitysCount());
我得到&#34; java.sql.SQLException:数据异常:无效的日期时间格式&#34;在尝试执行查询时,我无法理解原因。
答案 0 :(得分:1)
尝试这样的事情:
在jsp中:
Timestamp timestamp = new Timestamp(aMonthAgo.getTimeInMillis());
在finder中:
qPos.add(timestamp);
同样在sql查询中我会使用BETWEEN:
WHERE DATE(EX_MyEntity.myDate) BETWEEN ? AND ?