package?com.lyq.dao;

import?java.util.List;

import?com.lyq.persistence.Category;
import?com.lyq.util.HibernateFilter;
/**
?*?藥品類別數(shù)據(jù)庫操作類
?*?@author?Li?Yong?Qiang
?*/
public?class?CategoryDao?extends?SupperDao?{
	
	/**
	?*?根據(jù)id查詢類別
	?*?@param?id?
	?*?@return?Category
	?*/
	public?Category?loadCategory（int?id）{
		Category?c?=?null;
		try{
			session?=?HibernateFilter.getSession（）;		//獲取Session對象
			session.beginTransaction（）;					//開啟事物
			//加載類別信息
			c?=?（Category）session.load（Category.class?new?Integer（id））;
			session.getTransaction（）.commit（）;			//提交事物
		}catch（Exception?e）{
			e.printStackTrace（）;						//打印異常信息
			session.getTransaction（）.rollback（）;		//回滾事物
		}
		return?c;
	}
	/**
	?*?查詢所有類別
	?*?@return?List
	?*/
	public?List?findAllCategory（）{
		List?list?=?null;
		try{
			session?=?HibernateFilter.getSession（）;		//獲取Session對象
			session.beginTransaction（）;					//開啟事物
			list?=?session.createQuery（“from?Category?c“）//創(chuàng)建Query對象
						??.list（）;						//獲取結(jié)果集
			session.getTransaction（）.commit（）;			//提交事物
		}catch（Exception?e）{
			e.printStackTrace（）;						//打印異常信息
			session.getTransaction（）.rollback（）;		//回滾事物
		}
		return?list;
	}
	/**
	?*?統(tǒng)計藥品類別及數(shù)量
	?*?@return
	?*/
	public?List?findCategoryAndCount（）{
		List?list?=?null;
		try{
			session?=?HibernateFilter.getSession（）;		//獲取Session對象
			session.beginTransaction（）;					//開啟事物
			//?內(nèi)連接查詢語句
			String?hql?=?“select?c.namecount（*）?from?Medicine?m?join?m.category?c?group?by?c“;
			list?=?session.createQuery（hql）//創(chuàng)建Query對象
						??.list（）;						//獲取結(jié)果集
			session.getTransaction（）.commit（）;			//提交事物
		}catch（Exception?e）{
			e.printStackTrace（）;						//打印異常信息
			session.getTransaction（）.rollback（）;		//回滾事物
		}
		return?list;
	}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2011-09-17?08:11??MedicineManager\
?????文件????????2624??2011-08-24?10:23??MedicineManager\.classpath
?????目錄???????????0??2011-10-20?11:30??MedicineManager\.myeclipse\
?????文件?????????523??2011-08-24?10:23??MedicineManager\.myhibernatedata
?????文件?????????318??2011-08-24?10:23??MedicineManager\.mymetadata
?????文件?????????243??2011-08-24?10:23??MedicineManager\.mystrutsdata
?????文件????????1518??2011-08-24?10:23??MedicineManager\.project
?????目錄???????????0??2011-09-17?08:11??MedicineManager\WebRoot\
?????目錄???????????0??2011-09-17?08:11??MedicineManager\WebRoot\meta-INF\
?????文件??????????39??2011-08-24?10:23??MedicineManager\WebRoot\meta-INF\MANIFEST.MF
?????目錄???????????0??2011-09-17?08:11??MedicineManager\WebRoot\WEB-INF\
?????文件????????9827??2011-08-24?10:23??MedicineManager\WebRoot\WEB-INF\.struts-config.mex
?????目錄???????????0??2011-09-17?08:11??MedicineManager\WebRoot\WEB-INF\classes\
?????目錄???????????0??2011-09-17?08:11??MedicineManager\WebRoot\WEB-INF\classes\com\
?????目錄???????????0??2011-09-17?08:11??MedicineManager\WebRoot\WEB-INF\classes\com\lyq\
?????目錄???????????0??2011-09-17?08:11??MedicineManager\WebRoot\WEB-INF\classes\com\lyq\dao\
?????文件????????1865??2011-08-24?10:23??MedicineManager\WebRoot\WEB-INF\classes\com\lyq\dao\CategoryDao.class
?????文件????????2241??2011-08-24?10:23??MedicineManager\WebRoot\WEB-INF\classes\com\lyq\dao\MedicineDao.class
?????文件????????2440??2011-08-24?10:23??MedicineManager\WebRoot\WEB-INF\classes\com\lyq\dao\SellDao.class
?????文件????????3155??2011-08-24?10:23??MedicineManager\WebRoot\WEB-INF\classes\com\lyq\dao\SupperDao.class
?????文件????????4364??2011-08-24?10:23??MedicineManager\WebRoot\WEB-INF\classes\com\lyq\dao\UserDao.class
?????目錄???????????0??2011-09-17?08:11??MedicineManager\WebRoot\WEB-INF\classes\com\lyq\persistence\
?????文件????????1883??2011-08-24?10:23??MedicineManager\WebRoot\WEB-INF\classes\com\lyq\persistence\Category.class
?????文件?????????701??2011-08-24?10:23??MedicineManager\WebRoot\WEB-INF\classes\com\lyq\persistence\Category.hbm.xml
?????文件????????2661??2011-08-24?10:23??MedicineManager\WebRoot\WEB-INF\classes\com\lyq\persistence\Medicine.class
?????文件?????????857??2011-08-24?10:23??MedicineManager\WebRoot\WEB-INF\classes\com\lyq\persistence\Medicine.hbm.xml
?????文件????????2118??2011-08-24?10:23??MedicineManager\WebRoot\WEB-INF\classes\com\lyq\persistence\SellDetail.class
?????文件?????????814??2011-08-24?10:23??MedicineManager\WebRoot\WEB-INF\classes\com\lyq\persistence\SellDetail.hbm.xml
?????文件????????1322??2011-08-24?10:23??MedicineManager\WebRoot\WEB-INF\classes\com\lyq\persistence\SellSeq.class
?????文件????????1188??2011-08-24?10:23??MedicineManager\WebRoot\WEB-INF\classes\com\lyq\persistence\User.class
?????文件?????????548??2011-08-24?10:23??MedicineManager\WebRoot\WEB-INF\classes\com\lyq\persistence\User.hbm.xml
............此處省略162個文件信息