hibernate增刪查改

1 OpenAction.java

 

/**//*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package org.zhb.struts.action;

import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.beanutils.BeanUtils;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.DynaActionForm;
import org.apache.struts.actions.DispatchAction;
import org.hibernate.Session;
import org.hibernate.Transaction;

import util.BaseHibernateDAO;
import util.HibernateSessionFactory;
import util.Student;
import util.StudentDAO;

/** *//** 
 * MyEclipse Struts
 * Creation date: 05-29-2007
 * 
 * XDoclet definition:
 * @struts.action validate="true"
 */
public class OpenAction extends DispatchAction ...{
    /**//*
     * Generated Methods
     */

    /** *//** 
     * Method execute
     * @param mapping
     * @param form
     * @param request
     * @param response
     * @return ActionForward
     */
    public ActionForward insert(ActionMapping mapping, ActionForm form,
            HttpServletRequest request, HttpServletResponse response) ...{
        DynaActionForm operationForm = (DynaActionForm) form;
        Student stu=new Student();
        try ...{
            BeanUtils.copyProperties(stu,operationForm);
            BaseHibernateDAO bao=new BaseHibernateDAO();
            Session session=bao.getSession();
            Transaction tr=session.beginTransaction();
            StudentDAO dao=new StudentDAO();
            dao.save(stu);
            tr.commit();
            session.close();
        } catch (IllegalAccessException e) ...{
            e.printStackTrace();
        } catch (InvocationTargetException e) ...{
            e.printStackTrace();
        }
        return mapping.findForward("find");
    }
    public ActionForward find(ActionMapping mapping, ActionForm form,
            HttpServletRequest request, HttpServletResponse response) ...{
        StudentDAO dao=new StudentDAO();
        ArrayList list=dao.findAll();
        request.setAttribute("list",list);
        return mapping.findForward("display");
    }
    
    
    public ActionForward delete(ActionMapping mapping, ActionForm form,
            HttpServletRequest request, HttpServletResponse response) ...{
        DynaActionForm operationForm=(DynaActionForm)form;
        Long id=(Long)operationForm.get("id");
        Session session=HibernateSessionFactory.getSession();
        Transaction tr=session.beginTransaction();
        StudentDAO dao=new StudentDAO();
        dao.deleteById(id);
        tr.commit();
        session.close();
        return mapping.findForward("find");
    }
    
    
    public ActionForward modify(ActionMapping mapping, ActionForm form,
            HttpServletRequest request, HttpServletResponse response) ...{
        DynaActionForm operationForm=(DynaActionForm)form;
        Student stu=new Student();
        try ...{
            BeanUtils.copyProperties(stu,operationForm);
            BaseHibernateDAO bao=new BaseHibernateDAO();
            Session session=bao.getSession();
            Transaction tr=session.beginTransaction();
            StudentDAO dao=new StudentDAO();
            dao.modifybyID(stu);
            tr.commit();
            session.close();
        } catch (IllegalAccessException e) ...{
            e.printStackTrace();
        } catch (InvocationTargetException e) ...{
            e.printStackTrace();
        }
        return mapping.findForward("find");
    }
    
}

 

2 BaseHibernateDAO.java

 

package util;

import org.hibernate.Session;


/** *//**
 * Data access object (DAO) for domain model
 * @author MyEclipse - Hibernate Tools
 */
public class BaseHibernateDAO implements IBaseHibernateDAO ...{
    
    public Session getSession() ...{
        return HibernateSessionFactory.getSession();
    }
    
}

 

3 HibernateSessionFactory.java

 

package util;

import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.cfg.Configuration;

/** *//**
 * Configures and provides access to Hibernate sessions, tied to the
 * current thread of execution.  Follows the Thread Local Session
 * pattern, see {@link http://hibernate.org/42.html }.
 */
public class HibernateSessionFactory ...{

    /** *//** 
     * Location of hibernate.cfg.xml file.
     * Location should be on the classpath as Hibernate uses  
     * #resourceAsStream style lookup for its configuration file. 
     * The default classpath location of the hibernate config file is 
     * in the default package. Use #setConfigFile() to update 
     * the location of the configuration file for the current session.   
     */
    private static String CONFIG_FILE_LOCATION = "/hibernate.cfg.xml";
    private static final ThreadLocal<Session> threadLocal = new ThreadLocal<Session>();
    private  static Configuration configuration = new Configuration();
    private static org.hibernate.SessionFactory sessionFactory;
    private static String configFile = CONFIG_FILE_LOCATION;

    private HibernateSessionFactory() ...{
    }
    
    /** *//**
     * Returns the ThreadLocal Session instance.  Lazy initialize
     * the <code>SessionFactory</code> if needed.
     *
     *  @return Session
     *  @throws HibernateException
     */
    public static Session getSession() throws HibernateException ...{
        Session session = (Session) threadLocal.get();

        if (session == null || !session.isOpen()) ...{
            if (sessionFactory == null) ...{
                rebuildSessionFactory();
            }
            session = (sessionFactory != null) ? sessionFactory.openSession()
                    : null;
            threadLocal.set(session);
        }

        return session;
    }

    /** *//**
     *  Rebuild hibernate session factory
     *
     */
    public static void rebuildSessionFactory() ...{
        try ...{
            configuration.configure(configFile);
            sessionFactory = configuration.buildSessionFactory();
        } catch (Exception e) ...{
            System.err
                    .println("%%%% Error Creating SessionFactory %%%%");
            e.printStackTrace();
        }
    }

    /** *//**
     *  Close the single hibernate session instance.
     *
     *  @throws HibernateException
     */
    public static void closeSession() throws HibernateException ...{
        Session session = (Session) threadLocal.get();
        threadLocal.set(null);

        if (session != null) ...{
            session.close();
        }
    }

    /** *//**
     *  return session factory
     *
     */
    public static org.hibernate.SessionFactory getSessionFactory() ...{
        return sessionFactory;
    }

    /** *//**
     *  return session factory
     *
     *    session factory will be rebuilded in the next call
     */
    public static void setConfigFile(String configFile) ...{
        HibernateSessionFactory.configFile = configFile;
        sessionFactory = null;
    }

    /** *//**
     *  return hibernate configuration
     *
     */
    public static Configuration getConfiguration() ...{
        return configuration;
    }

}

 

4 IBaseHibernateDAO.java

 

package util;

import org.hibernate.Session;


/** *//**
 * Data access interface for domain model
 * @author MyEclipse - Hibernate Tools
 */
public interface IBaseHibernateDAO ...{
    public Session getSession();
}

 

5 Student.java

 

package util;



/** *//**
 * Student generated by MyEclipse - Hibernate Tools
 */

public class Student  implements java.io.Serializable ...{


    // Fields    

     private Long id;
     private String name;


    // Constructors

    /** *//** default constructor */
    public Student() ...{
    }

    
    /** *//** full constructor */
    public Student(String name) ...{
        this.name = name;
    }

   
    // Property accessors

    public Long getId() ...{
        return this.id;
    }
    
    public void setId(Long id) ...{
        this.id = id;
    }

    public String getName() ...{
        return this.name;
    }
    
    public void setName(String name) ...{
        this.name = name;
    }
   








}

 

6 StudentDAO.java

package util;

import java.util.ArrayList;
import java.util.List;

import javax.swing.text.DefaultEditorKit.CutAction;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.Criteria;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.criterion.Criterion;
import org.hibernate.criterion.Example;
import org.hibernate.criterion.Expression;
import org.hibernate.criterion.Order;

/** *//**
 * Data access object (DAO) for domain model class Student.
 * @see util.Student
 * @author MyEclipse - Hibernate Tools
 */
public class StudentDAO extends BaseHibernateDAO ...{

    private static final Log log = LogFactory.getLog(StudentDAO.class);

    //property constants
    public static final String NAME = "name";

    
    //增加
    public void save(Student transientInstance) ...{
        log.debug("saving Student instance");
        try ...{
            getSession().save(transientInstance);
            log.debug("save successful");
        } catch (RuntimeException re) ...{
            log.error("save failed", re);
            throw re;
        }
    }
    
    public void delete(Student persistentInstance) ...{
        log.debug("deleting Student instance");
        try ...{
            getSession().delete(persistentInstance);
            log.debug("delete successful");
        } catch (RuntimeException re) ...{
            log.error("delete failed", re);
            throw re;
        }
    }
    
    //通過ID刪除
    public void deleteById(Long id)...{
        String querysql="delete from Student as s where s.id=?";
        Query queryObject=getSession().createQuery(querysql);
        queryObject.setParameter(0, id);
        queryObject.executeUpdate();
    }
    
    
    //查詢所有
    public ArrayList findAll()...{
//        ArrayList list=null;
//        list=(ArrayList)getSession().createQuery("from Student").list();
        Criteria criteria = getSession().createCriteria(Student.class);
               Criterion criterion1 = Expression.like("id",new Integer("t%"));
               Criterion criterion2 = Expression.like("name","t%");
               criteria = criteria.add(criterion1) ;
               criteria = criteria.add(criterion2) ;
               ArrayList result = (ArrayList) criteria.list();
        return result;
    }
    
    
    public void modify(Student persistentInstance)...{
        getSession().update(persistentInstance);
    }
    
    //通過ID修改
    public void modifybyID(Student persistentInstance)...{
        String hql="update Student as s set s.name=? where s.id=?";
        Query queryObject=getSession().createQuery(hql);
        queryObject.setParameter(0, persistentInstance.getName());
        queryObject.setParameter(1, persistentInstance.getId());
        queryObject.executeUpdate();
    }
    
    public Student findById( java.lang.Long id) ...{
        log.debug("getting Student instance with id: " + id);
        try ...{
            Student instance = (Student) getSession()
                    .get("util.Student", id);
            return instance;
        } catch (RuntimeException re) ...{
            log.error("get failed", re);
            throw re;
        }
    }
    
    
    public List findByExample(Student instance) ...{
        log.debug("finding Student instance by example");
        try ...{
            List results = getSession()
                    .createCriteria("util.Student")
                    .add(Example.create(instance))
            .list();
            log.debug("find by example successful, result size: " + results.size());
            return results;
        } catch (RuntimeException re) ...{
            log.error("find by example failed", re);
            throw re;
        }
    }    
    
    public List findByProperty(String propertyName, Object value) ...{
      log.debug("finding Student instance with property: " + propertyName
            + ", value: " + value);
      try ...{
         String queryString = "from Student as model where model." 
                                 + propertyName + "= ?";
         Query queryObject = getSession().createQuery(queryString);
         queryObject.setParameter(0, value);
         return queryObject.list();
      } catch (RuntimeException re) ...{
         log.error("find by property name failed", re);
         throw re;
      }
    }

    public List findByName(Object name) ...{
        return findByProperty(NAME, name);
    }
    
    public Student merge(Student detachedInstance) ...{
        log.debug("merging Student instance");
        try ...{
            Student result = (Student) getSession()
                    .merge(detachedInstance);
            log.debug("merge successful");
            return result;
        } catch (RuntimeException re) ...{
            log.error("merge failed", re);
            throw re;
        }
    }

    public void attachDirty(Student instance) ...{
        log.debug("attaching dirty Student instance");
        try ...{
            getSession().saveOrUpdate(instance);
            log.debug("attach successful");
        } catch (RuntimeException re) ...{
            log.error("attach failed", re);
            throw re;
        }
    }
    
    public void attachClean(Student instance) ...{
        log.debug("attaching clean Student instance");
        try ...{
            getSession().lock(instance, LockMode.NONE);
            log.debug("attach successful");
        } catch (RuntimeException re) ...{
            log.error("attach failed", re);
            throw re;
        }
    }
}

 

7 struts-config.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "http://struts.apache.org/dtds/struts-config_1_2.dtd">

<struts-config>
  <data-sources />
  <form-beans>
      <form-bean name="openForm" type="org.apache.struts.action.DynaActionForm">
          <form-property name="id" type="java.lang.Long"/>
          <form-property name="name" type="java.lang.String"/>
      </form-bean>
  </form-beans>
  <global-exceptions />
  <global-forwards />
  <action-mappings >
    <action 
    attribute="openForm"
    input="/insert.jsp"
    name="openForm"
    scope="request"
    parameter="model"
    path="/open" 
    type="org.zhb.struts.action.OpenAction">
    <forward name="display" path="/find.jsp"/>
    <forward name="find" path="/open.do?model=find"/>
    </action>

  </action-mappings>

  <message-resources parameter="org.zhb.struts.ApplicationResources" />
</struts-config>

 

8 delete.jsp

 

<%@ page language="java" pageEncoding="ISO-8859-1"%>

<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html" %>
<%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic" %>
<%@ taglib uri="http://struts.apache.org/tags-tiles" prefix="tiles" %>


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html:html lang="true">
  <head>
    <html:base />
    
    <title>delete.jsp</title>

    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->

  </head>
  
  <body>
  <center>
    <html:form action="/open.do?model=delete">
     <table>
         <tr>
             <td>
                 id<html:text property="id"></html:text>
             </td>
         </tr>
         <tr>
             <td>
                 <html:submit></html:submit>
             </td>
         </tr>
     </table>
   </html:form>
  </center>
  </body>
</html:html>

 

9 find.jsp

 

<%@ page contentType="text/html; charset=GBK"%>

<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html" %>
<%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic" %>
<%@ taglib uri="http://struts.apache.org/tags-tiles" prefix="tiles" %>


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html:html lang="true">
  <head>
    <html:base />
    
    <title>find.jsp</title>

    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->

  </head>
  
  <body>
  <center>
        <logic:present name="list">
         <table>
             <tr>
                 <td>id</td>
                 <td>name</td>
             </tr>
             <logic:iterate id="bean" name="list">
                 <tr>
                     <td>
                         <bean:write name="bean" property="id"/>
                     </td>
                     <td>
                         <bean:write name="bean" property="name"/>
                     </td>
                 </tr>
             </logic:iterate>
         </table>
        </logic:present>
        <BR/>
        <html:link page="/insert.jsp">增加</html:link>
        <html:link page="/delete.jsp">刪除</html:link>
        <html:link page="/modify.jsp">修改</html:link>
  </center>
  </body>
</html:html>

 

10 insert.jsp

 

<%@ page language="java" pageEncoding="ISO-8859-1"%>

<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html" %>
<%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic" %>
<%@ taglib uri="http://struts.apache.org/tags-tiles" prefix="tiles" %>


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html:html lang="true">
  <head>
    <html:base />
    
    <title>insert.jsp</title>

    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->

  </head>
  
  <body>
  <center>
    <html:form action="/open.do?model=insert">
    <table>
        <tr>
            <td>
            name<html:text property="name"/>
            </td>
        </tr>
        <tr>
            <td>
                <html:submit></html:submit>
            </td>
        </tr>
    </table>
    </html:form>
  </center>
  </body>
</html:html>