struts2+hibernate的簡單學生信息管理，沒有用很好的界面，目的主要是為了實踐一下hibernate框架的學習，深入了解hibernate框架。

下面是項目的目錄：

配置文件hibernate.cfg.xml

<?xml version='1.0' encoding='UTF-8'?> <!DOCTYPE hibernate-configuration PUBLIC"-//Hibernate/Hibernate Configuration DTD 3.0//EN""http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"><!-- Generated by MyEclipse Hibernate Tools. --> <hibernate-configuration><session-factory><property name="dialect">org.hibernate.dialect.MySQLInnoDBDialect</property><property name="connection.url">jdbc:mysql://localhost:3306/stu</property><property name="connection.username">root</property><property name="connection.password">123456</property><property name="connection.driver_class">com.mysql.jdbc.Driver</property><!-- 顯示sql語句 --><property name="hibernate.show_sql">true </property> <property name="format_sql">true</property><!-- 讓輸出的sql語句格式化 --><mapping resource="PO/Stuinfo.hbm.xml"/></session-factory></hibernate-configuration>struts.xml

<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"><struts><!-- Configuration for the default package. --><package name="default" extends="struts-default"><action name="lookMessageAction" class="studentAction.LookMessageAction"><result name="success">/student/lookMessage.jsp</result><result name="input">/student/index.jsp</result></action><action name="addMessageAction" class="studentAction.AddMessageAction"><result name="success" type="chain">lookMessageAction</result><result name="input">/student/addMessage.jsp</result></action><action name="findMessageAction" class="studentAction.FindMessageAction"><result name="success">/student/updateMessage.jsp</result><result name="input">/student/findMessage.jsp</result></action><action name="updateMessageAction" class="studentAction.UpdateMessageAction"><result name="success" type="chain">lookMessageAction</result><result name="input">/student/updateMessage.jsp</result></action><action name="deleteMessageAction" class="studentAction.DeleteMessageAction"><result name="success" type="chain">lookMessageAction</result><result name="input">/student/deleteMessage.jsp</result></action> </package> </struts> 映射文件Stuinfo.hbm.xml

<?xml version="1.0"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> <!-- Generated 2011-12-9 12:17:31 by Hibernate Tools 3.2.1.GA --> <hibernate-mapping><class name="PO.Stuinfo" table="stuinfo" catalog="stu"><id name="id" type="string"><column name="id" length="20" /><generator class="assigned" /></id><property name="name" type="string"><column name="name" length="20" not-null="true" /></property><property name="sex" type="string"><column name="sex" length="5" not-null="true" /></property><property name="age" type="int"><column name="age" not-null="true" /></property><property name="weight" type="float"><column name="weight" precision="10" scale="0" not-null="true" /></property></class> </hibernate-mapping>

StudentDao.java文件

package Dao;import SessionFactory.HibernateSessionFactory; import PO.Stuinfo; import java.util.List; import javax.swing.JOptionPane; import org.hibernate.Query; import org.hibernate.Session; import org.hibernate.Transaction;public class StudentDao {private Transaction transaction;private Session session;private Query query;public StudentDao(){}public boolean saveInfo(Stuinfo info){try{session=HibernateSessionFactory.getSession();transaction=session.beginTransaction();session.save(info);transaction.commit();session.close();return true;}catch(Exception e){message("saveInfo.error:"+e);e.printStackTrace();return false;}}public List<Stuinfo> findInfo(String type,Object value){session=HibernateSessionFactory.getSession();if(session==null){System.out.println("dao中session是空的");}try{transaction=session.beginTransaction();String queryString="from Stuinfo as model where model."+type+"="+value;//System.out.println(queryString);query=session.createQuery(queryString);// query.setParameter(0, value);List<Stuinfo> list=query.list();transaction.commit();session.close();return list;}catch(Exception e){message("findInfo.error:"+e);e.printStackTrace();return null;}}public List<Stuinfo> findAllInfo(){session=HibernateSessionFactory.getSession();try{transaction=session.beginTransaction();String queryString="from Stuinfo";query=session.createQuery(queryString);List<Stuinfo> list=query.list();transaction.commit();session.close();return list;}catch(Exception e){message("findInfo.error:"+e);e.printStackTrace();return null;}}public boolean deleteInfo(String id){try{session=HibernateSessionFactory.getSession();transaction=session.beginTransaction();Stuinfo info=new Stuinfo();info=(Stuinfo)session.get(Stuinfo.class, id);session.delete(info);transaction.commit();session.close();return true;}catch(Exception e){message("deleteInfo.error:"+e);e.printStackTrace();return false;}}public boolean updateInfo(Stuinfo info){try{session=HibernateSessionFactory.getSession();transaction=session.beginTransaction();session.update(info);transaction.commit();session.close();return true;}catch(Exception e){message("updateInfo.error:"+e);e.printStackTrace();return false;}}public void message(String mess){int type=JOptionPane.YES_NO_OPTION;String title="提示信息";JOptionPane.showMessageDialog(null, mess, title, type);} }

模塊一：查詢所有的的學生信息

查詢信息主要是進入lookMessageAction，查詢數據庫：

<span style="font-size:24px;"> <action name="lookMessageAction" class="studentAction.LookMessageAction"><result name="success">/student/lookMessage.jsp</result><result name="input">/student/index.jsp</result></action></span>
LookMessageAction.java

public String execute() throws Exception{request=ServletActionContext.getRequest();StudentDao dao=new StudentDao();//查詢所有信息List<Stuinfo> list=dao.findAllInfo();//把信息放在session里面request.getSession().setAttribute("count", list.size());request.getSession().setAttribute("allInfo", list);message="success";return message;}
StudentDao.java中的部分：

<strong> </strong> public List<Stuinfo> findAllInfo(){session=HibernateSessionFactory.getSession();try{transaction=session.beginTransaction();String queryString="from Stuinfo";//HQL語言query=session.createQuery(queryString);//創建query對象List<Stuinfo> list=query.list();transaction.commit();session.close();return list;}catch(Exception e){message("findInfo.error:"+e);e.printStackTrace();return null;}}

模塊二：添加學生信息

添加學生信息，點擊確定時通過form表單提交addMessageAction，addMessageAction

處理完成之后服務器跳轉到lookMessageAction。即添加成功之后馬上可查看所有學生信息。

<action name="addMessageAction" class="studentAction.AddMessageAction"><result name="success" type="chain">lookMessageAction</result><result name="input">/student/addMessage.jsp</result></action>AddMessageAction.java

package studentAction;import Dao.StudentDao; import PO.Stuinfo; import com.opensymphony.xwork2.ActionSupport; import java.util.List; import javax.swing.JOptionPane;public class AddMessageAction extends ActionSupport{private String id;private String name;private String sex;private int age;private float weight;private String message="input";public String getId() {return id;}public void setId(String id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getSex() {return sex;}public void setSex(String sex) {this.sex = sex;}public int getAge() {return age;}public void setAge(int age) {this.age = age;}public float getWeight() {return weight;}public void setWeight(float weight) {this.weight = weight;}public void validate(){if(this.getId()==null||this.getId().length()==0){addFieldError("id","學號不允許為空!");}else{StudentDao dao=new StudentDao();List<Stuinfo> list=dao.findInfo("id", this.getId());if(!list.isEmpty()){addFieldError("id","學號已存在!");}}if(this.getName()==null||this.getName().length()==0){addFieldError("name","姓名不允許為空!");}if(this.getAge()>130){addFieldError("age","請認真核實年齡！");}if(this.getWeight()>500){addFieldError("weight","請認真核實體重！");}}public String execute() throws Exception{StudentDao dao=new StudentDao();//把持久化對象保存在mysql中，此處用到hibernate框架boolean save=dao.saveInfo(info());if(save){message="success";}return message;}public Stuinfo info(){Stuinfo info=new Stuinfo();info.setId(this.getId());info.setName(this.getName());info.setSex(this.getSex());info.setAge(this.getAge());info.setWeight(this.getWeight());return info;}public void message(String mess){int type=JOptionPane.YES_NO_OPTION;String title="提示信息";JOptionPane.showMessageDialog(null, mess, title, type);} } StudentDao.java中的部分：

public boolean saveInfo(Stuinfo info){try{session=HibernateSessionFactory.getSession();transaction=session.beginTransaction();session.save(info);transaction.commit();session.close();return true;}catch(Exception e){message("saveInfo.error:"+e);e.printStackTrace();return false;}}

模塊三：修改學生信息
修改學生信息，首先要選擇序號，點擊確定之后，進入修改界面

<span style="font-size:24px;"><action name="findMessageAction" class="studentAction.FindMessageAction"><result name="success">/student/updateMessage.jsp</result><result name="input">/student/findMessage.jsp</result></action></span> FindMessageAction.java部分

public String execute() throws Exception{request=ServletActionContext.getRequest();StudentDao dao=new StudentDao();//通過id查找要修改的學生對象List<Stuinfo> list=dao.findInfo("id", this.getId());request.getSession().setAttribute("oneInfo", list);message="success";return message;}

在更新頁面填好信息后，通過form提交到updateMessageAction,updateMessageAction更新成功后服務器跳轉到lookMessageAction

<action name="updateMessageAction" class="studentAction.UpdateMessageAction"><result name="success" type="chain">lookMessageAction</result><result name="input">/student/updateMessage.jsp</result></action> updateMessageAction.java的部分：

public String execute() throws Exception{StudentDao dao=new StudentDao();boolean update=dao.updateInfo(info());//更新數據庫if(update){message="success";}return message;}public Stuinfo info(){Stuinfo info=new Stuinfo();info.setId(this.getId());info.setName(this.getName());info.setSex(this.getSex());info.setAge(this.getAge());info.setWeight(this.getWeight());return info;} StudentDao.java中的部分：

public boolean updateInfo(Stuinfo info){try{session=HibernateSessionFactory.getSession();transaction=session.beginTransaction();session.update(info);transaction.commit();session.close();return true;}catch(Exception e){message("updateInfo.error:"+e);e.printStackTrace();return false;}}
模塊四：刪除學生信息
刪除學生信息也是一樣的，先根據學號查詢到學生信息，變成持久化對象然后在刪除

<span style="font-size:24px;"> <action name="deleteMessageAction" class="studentAction.DeleteMessageAction"><result name="success" type="chain">lookMessageAction</result><result name="input">/student/deleteMessage.jsp</result></action> </span> DeleteMessageAction .java

public String execute() throws Exception{StudentDao dao=new StudentDao();//從數據庫中刪除boolean del=dao.deleteInfo(this.getId());if(del){message="success";}return message;}StudentDao.java中的部分

public boolean deleteInfo(String id){try{session=HibernateSessionFactory.getSession();transaction=session.beginTransaction();Stuinfo info=new Stuinfo();//先獲得持久化對象info=(Stuinfo)session.get(Stuinfo.class, id);//再持久化對象session.delete(info);transaction.commit();session.close();return true;}catch(Exception e){message("deleteInfo.error:"+e);e.printStackTrace();return false;}}

總結

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