DB2中簡單存儲過程 selectAllUsers
CREATE procedure selectAllUsers
DYNAMIC RESULT SETS 1
BEGIN
DECLARE temp_cursor1 CURSOR WITH RETURN TO CLIENT FOR
SELECT * FROM test;
OPEN temp_cursor1;
END;
映射文件中關于存儲過程內容如下
<hibernate-mapping package="com.unmi.vo">
<class name="Test" table="TEST">
............
</class>
<sql-query callable="true" name="selectAllUsers">
<return alias="aa" class="Test">
<return-property name="oborqt" column="OBORQT"/>
<return-property name="moorqt" column="MOORQT"/>
<return-property name="roschn" column="ROSCHN"/>
<return-property name="plandate" column="PLANDATE"/>
</return>
{ ? = call selectAllUsers() }
</sql-query>
</hibernate-mapping>
{ ? = call selectAllUsers() } 也可以寫成{ call selectAllUsers() }，
如果有參數就寫成
{ ? = call selectAllUsers(?,?,?) }
代碼中對query設置相應位置上的值就OK
Java調用關鍵代碼如下
Session session = HibernateUtil.currentSession();
Query query = session.getNamedQuery("selectAllUsers");
List list = query.list();
System.out.println(list);
要求你的存儲過程必須能返回記錄集，否則要出錯
如果你的存儲過程是完成非查詢任務就應該在配置文件用以下三個標簽
<sql-insert callable="true">{call createPerson (?, ?)}</sql-insert>
<sql-delete callable="true">{? = call deletePerson (?)}</sql-delete>
<sql-update callable="true">{? = call updatePerson (?, ?)}</sql-update>
有一點不好的地方就是調用存儲過程獲取記錄集時，不能對Query使用
setFirstResult(int)和setMaxResults(int)方法來分頁
要求你的存儲過程必須能返回記錄集，否則要出錯
上面這句話是關鍵。
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hibernate調用mysql5.0存儲過程
關鍵代碼：
數據庫存儲過程
Create procedure SP_get_UserInfo()
as
begin
select *
from user
order by Id
end
hibernate相對應的配置文件User.hbm.xml
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!--
Mapping file autogenerated by MyEclipse Persistence Tools
-->
<hibernate-mapping>
<class name="com.test.hibernate.db.User" table="user"
catalog="user">
<id name="id" type="java.lang.Long">
<column name="ID" />
<generator class="assigned" />
</id>
<property name="name" type="java.lang.String">
<column name="name" length="500" />
</property>
<property name="sex" type="java.lang.String">
<column name="sex" length="10" />
</property>
<!--
<property name="born" type="java.util.Date">
<column name="born" length="0" />
</property>
-->
<property name="born" type="java.lang.String">
<column name="born" length="0" />
</property>
<property name="address" type="java.lang.String">
<column name="address" />
</property>
</class>
<!--
調用存儲過程就在這里配 -->
<sql-query name="getUser" callable="true">
<return alias="user" class="com.test.hibernate.db.User">
<return-property name="id" column="ID" />
<return-property name="name" column="name" />
<return-property name="sex" column="sex" />
<return-property name="born" column="born" />
<return-property name="address" column="address"/>
</return>
{ call SP_get_UserInfo() }
</sql-query>
</hibernate-mapping>
調用存儲過程的Java代碼：
Session querySession = HibernateSessionFactory.getSession();
querySession.clear();
List lst = uerySession.getNamedQuery("getUser").list();
for(int i=0;i<lst.size();i++)
{
usr=(User)lst.get(i);
System.out
.println(usr.getId() + " " + usr.getName() + " "
+ usr.getSex() + " " + usr.getBorn() + " "
+ usr.getAddress());
}
HibernateSessionFactory.closeSession();
一個簡單的存儲過程調用就這樣完成了！