Home Database Mysql Tutorial atitit.hb原生sql跨数据库解决原理获得hb数据库类型运行期获得Di

atitit.hb原生sql跨数据库解决原理获得hb数据库类型运行期获得Di

Jun 07, 2016 pm 03:56 PM
sql principle Native database get solve

atitit. hb 原生sql跨数据库解决原理 获得hb 数据库类型运行期获得Dialect #-----原理 Hibernate 运行期获得Dialect 2010-07-28 12:59:58| 分类: 软件开发 |举报 |字号 订阅 String dialect = ((SessionFactoryImpl) session.getSessionFactory()).getDialec

atitit. hb 原生sql跨数据库解决原理 获得hb 数据库类型运行期获得Dialect


#-----原理

Hibernate 运行期获得Dialect

2010-07-28 12:59:58| 分类: 软件开发 |举报 |字号 订阅

String dialect = ((SessionFactoryImpl) session.getSessionFactory()).getDialect()
.getClass().getName();
// //org.hibernate.dialect.MySQLDialect


如果是spring + hibernate则可以:

String dialect = ((SessionFactoryImpl) getHibernateTemplate().getSessionFactory()).getDialect()
.getClass().getName();



作者 老哇的爪子 Attilax 艾龙, EMAIL:1466519819@qq.com
转载请注明来源: http://blog.csdn.net/attilax


#----实际代码

private boolean ifMysql() {
// attilax 老哇的爪子 上午10:24:49 2014年5月10日
String dialect = ((SessionImpl) getSession()).getFactory().getDialect()
.getClass().getName();
// org.hibernate.dialect.MySQLDialect
System.out.println(dialect);
if (dialect.contains("MySQLDialect"))
return true;
else
return false;
}


Session session = getSession();
String sqlString = "SELECT * FROM t_mb_awardweixin where activityId="
+ actid
+ " and openId='"
+ uid
+ "' and DATEDIFF(d,createTime,GETDATE())=0";
// 以SQL语句创建SQLQuery对象
if(ifMysql())
sqlString= "SELECT * FROM t_mb_awardweixin where activityId="
+ actid
+ " and openId='"
+ uid
+ "' and date(createTime) = curdate(); ";

List l = session.createSQLQuery(sqlString)




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