Hibernate+Struts2实现简单登录注册

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Hibernate+Struts2实现简单登录注册

Hibernate.cfg.xml代码  
<session-factory>  
    <property name="connection.username">root</property>  
    <property name="connection.url">  
        jdbc:mysql://localhost:3306/test  
    </property>  
    <property name="dialect">  
        org.hibernate.dialect.MySQLDialect  
    </property>  
    <property name="myeclipse.connection.profile">MySQL</property>  
    <property name="connection.password">root</property>  
    <property name="connection.driver_class">  
        com.mysql.jdbc.Driver  
    </property>  
      
    <mapping resource="com/lian/bean/User.hbm.xml" />  
  
</session-factory>  

Struts.xml代码  
<struts>  
    <include file="struts-default.xml" />  
    <package name="default" extends="struts-default">  
        <action name="login" class="com.lian.action.LoginAction">  
            <interceptor-ref name="defaultStack" />  
            <result name="success">/success.jsp</result>  
            <result name="error">error.jsp</result>  
        </action>  
          
        <action name="register" class="com.lian.action.RegisterAction">  
            <interceptor-ref name="validationWorkflowStack" />  
            <result name="success">success.jsp</result>  
            <result name="error">error.jsp</result>  
            <result name="input">register.jsp</result>  
        </action>  
          
    </package>  
</struts>  

Web.xml代码  
<filter>  
        <filter-name>struts-cleanup</filter-name>  
        <filter-class>  
            org.apache.struts2.dispatcher.ActionContextCleanUp  
        </filter-class>  
    </filter>  
  
    <filter-mapping>  
        <filter-name>struts-cleanup</filter-name>  
        <url-pattern>/*</url-pattern>  
    </filter-mapping>  
  
    <filter>  
        <filter-name>struts2</filter-name>  
        <filter-class>  
            org.apache.struts2.dispatcher.FilterDispatcher  
        </filter-class>  
    </filter>  
  
    <filter-mapping>  
        <filter-name>struts2</filter-name>  
        <url-pattern>/*</url-pattern>  
    </filter-mapping>  

Hibernateutil代码  
package com.lian.util;  
  
import org.hibernate.HibernateException;  
import org.hibernate.Session;  
import org.hibernate.SessionFactory;  
import org.hibernate.Transaction;  
import org.hibernate.cfg.Configuration;  
  
public class HibernateUtil {  
    private static SessionFactory sessionFactory;  
    public static final ThreadLocal<Session> session = new ThreadLocal<Session>();  
      
    static {      
        try {  
            sessionFactory = new Configuration().configure().buildSessionFactory();  
        } catch (Throwable ex) {  
            throw new ExceptionInInitializerError(ex);  
        }  
    }  
      
    /*  
     * 获得当前session  
     */  
    public static Session getSession() throws HibernateException {  
        Session s = (Session) session.get();  
        if(s ==null || !s.isOpen()){  
            s = sessionFactory.openSession();  
            session.set(s);  
        }  
        return s;     
    }  
      
    /*  
     * 回滚  
     */  
    public static void rollback(Transaction tx) {  
        try {  
            if(tx != null) {  
                tx.rollback();  
            }  
        } catch (HibernateException e) {  
            System.out.println("rollback faild." + e);  
        }  
    }  
      
    /*  
     * 关闭session  
     */  
    public static void closeSession() throws HibernateException {  
        Session s = session.get();  
        session.set(null);  
        if(s != null) {  
            s.close();  
        }  
    }  
      
}  

Userdao.java代码  
package com.lian.dao;  
  
import java.util.Iterator;  
import java.util.List;  
  
import org.hibernate.HibernateException;  
import org.hibernate.Session;  
import org.hibernate.Transaction;  
  
import com.lian.bean.User;  
import com.lian.util.HibernateUtil;  
  
public class UserDao {  
  
    private Session session;  
    private Transaction tx;  
      
    public UserDao() {  
        session = HibernateUtil.getSession();  
    }  
      
    /*  
     * 将User对象插入到数据库中  
     * @param user  
     */  
    public void create(User user) {  
        try {  
            tx = session.beginTransaction();  
            session.save(user);  
            tx.commit();  
        } catch (HibernateException e) {  
            HibernateUtil.rollback(tx);  
        } finally {  
            HibernateUtil.closeSession();  
        }  
    }  
      
    public void delete(User user) {  
        try {  
            tx = session.beginTransaction();  
            session.delete(user);  
            tx.commit();  
        } catch (HibernateException e) {  
            HibernateUtil.rollback(tx);  
        } finally {  
            HibernateUtil.closeSession();  
        }  
    }  
      
    public User find(int id) {  
        User user = null;  
        tx = session.beginTransaction();  
        user = (User) session.get(User.class, id);  
        tx.commit();  
        HibernateUtil.closeSession();  
        return user;      
    }  
      
    public void update(User user) {  
        tx = session.beginTransaction();  
        session.update(user);  
        tx.commit();  
        HibernateUtil.closeSession();  
    }  
      
    public boolean check(User user) {  
        tx = session.beginTransaction();  
        String sql = "select u.password from User u where u.username='" +user.getUsername()+ "'";  
        List list = session.createQuery(sql).list();  
        if(!list.isEmpty()) {  
            Iterator it = list.iterator();  
            while(it.hasNext()) {  
                String get = (String) it.next();  
                System.out.println(get);  
                if(get.equals(user.getPassword())) {  
                    HibernateUtil.closeSession();  
                    return true;  
                }  
            }  
        }  
        HibernateUtil.closeSession();  
        return false;     
    }  
      
      
}  

User.hbm.xml代码  
<hibernate-mapping>  
    <class name="com.lian.bean.User" table="users">  
        <id name="id" column="id" type= "java.lang.Long">  
            <generator class="native" />  
        </id>  
        <property name="username" column="username" type="java.lang.String" />  
        <property name="password" column="password" type="java.lang.String" />  
    </class>  
</hibernate-mapping>  

Loginaction.java代码  
package com.lian.action;  
  
import com.lian.bean.User;  
import com.lian.dao.UserDao;  
import com.opensymphony.xwork2.ActionSupport;  
  
public class LoginAction extends ActionSupport {  
  
    private long id;  
    private String username;  
    private String password;  
      
    @Override  
    public String execute() throws Exception {  
        UserDao userDao = new UserDao();  
        User user = new User();  
        user.setUsername(username);  
        user.setPassword(password);  
        if(userDao.check(user)) {  
            return SUCCESS;  
        }  
        return ERROR;  
    }  
  
    public long getId() {  
        return id;  
    }  
  
    public void setId(long id) {  
        this.id = id;  
    }  
  
    public String getUsername() {  
        return username;  
    }  
  
    public void setUsername(String username) {  
        this.username = username;  
    }  
  
    public String getPassword() {  
        return password;  
    }  
  
    public void setPassword(String password) {  
        this.password = password;  
    }  
      
}  

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