用户数据管理与验证-优快云博客

userDAO

package com.ssh.dao.impl;

import java.util.List;
import com.ssh.entity.Users;

public interface UserDAO {

	public abstract boolean isValidUser(String username, String password);
	// property constants
	public static final String USERNAME = "username";

	public static final String PASSWORD = "password";
	public Users findOne(Integer id);

	public void save(Users user);

	public void delete(Users persistentInstance);

	public Users findById(java.lang.Integer id);

	public List findByExample(Users instance);

	public List findByProperty(String propertyName, Object value);

	public List findByUsername(Object username);

	public List findByPassword(Object password);

	public Users merge(Users detachedInstance);
//public void attachDirty(Users instance);

//	public void attachClean(Users instance)
}

userDAOImp

package com.ssh.dao.impl;

import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;


import com.ssh.entity.Users;


/**
 * Data access object (DAO) for domain model class Users.
 * @see com.ssh.entity.Users
 * @author MyEclipse - Hibernate Tools
 */
public class UsersDAOImp extends HibernateDaoSupport implements UserDAO  {
	private UserDAO userDAO;

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

	protected void initDao() {
		//do nothing
	}

  /* (non-Javadoc)
 * @see com.ssh.dao.impl.aa#save(com.ssh.entity.Users)
 */
public void save(Users transientInstance) {
        log.debug("saving Users instance");
        try {
            getHibernateTemplate().save(transientInstance);
            log.debug("save successful");
        } catch (RuntimeException re) {
            log.error("save failed", re);
            throw re;
        }
    }

	/* (non-Javadoc)
	 * @see com.ssh.dao.impl.aa#delete(com.ssh.entity.Users)
	 */
	public void delete(Users persistentInstance) {
        log.debug("deleting Users instance");
        try {
            getHibernateTemplate().delete(persistentInstance);
            log.debug("delete successful");
        } catch (RuntimeException re) {
            log.error("delete failed", re);
            throw re;
        }
    }

    /* (non-Javadoc)
	 * @see com.ssh.dao.impl.aa#findById(java.lang.Integer)
	 */
    public Users findById( java.lang.Integer id) {
        log.debug("getting Users instance with id: " + id);
        try {
            Users instance = (Users) getHibernateTemplate()
                    .get("com.ssh.entity.Users", id);
            return instance;
        } catch (RuntimeException re) {
            log.error("get failed", re);
            throw re;
        }
    }
    /* (non-Javadoc)
	 * @see com.ssh.dao.impl.aa#findByExample(com.ssh.entity.Users)
	 */
    public List findByExample(Users instance) {
        log.debug("finding Users instance by example");

        try {
            List results = getHibernateTemplate().findByExample(instance);
            log.debug("find by example successful, result size: " + results.size());
            return results;
        } catch (RuntimeException re) {
            log.error("find by example failed", re);
            throw re;
        }
    }    
    private static String hql  = "from com.ssh.entity.Users u where u.username=? and password=?";
    public boolean isValidUser(String username, String password) {
		String[] userlist=new String[2];
		userlist[0]=username;
		userlist[1]=password;
//		List userList = this.getHibernateTemplate().find(hql, (Object)username);
		this.getHibernateTemplate();
		List userList = this.getHibernateTemplate().find(hql,userlist);
		if (userList.size() > 0) {

			return true;

		}

		return false;

	}
    //查询
    public Users findOne(Integer id){
    	String queryString="from com.ssh.entity.Users as u where u.id=?";
    	 List userList= getHibernateTemplate().find(queryString,id);
    	 Users user=(Users)userList.get(0);
		return user;

    }
    //保存方法
    public void insert(Users user) {
		this.getHibernateTemplate().save(user);

	}
    //删除方法
    public void delete(Object obj){
    	this.getHibernateTemplate().delete(obj);
    }
    //查询方法
    public List findUser(){
    	String queryString="from com.ssh.entity.Users u";
    	return getHibernateTemplate().find(queryString);
    }
    /* (non-Javadoc)
	 * @see com.ssh.dao.impl.aa#findByProperty(java.lang.String, java.lang.Object)
	 */
    public List findByProperty(String propertyName, Object value) {
      log.debug("finding Users instance with property: " + propertyName
            + ", value: " + value);
      try {
         String queryString = "from Users as model where model." 
         						+ propertyName + "= ?";
		 return getHibernateTemplate().find(queryString, value);
      } catch (RuntimeException re) {
         log.error("find by property name failed", re);
         throw re;
      }
	}

	/* (non-Javadoc)
	 * @see com.ssh.dao.impl.aa#findByUsername(java.lang.Object)
	 */
	public List findByUsername(Object username) {
		return findByProperty(USERNAME, username);
	}

	/* (non-Javadoc)
	 * @see com.ssh.dao.impl.aa#findByPassword(java.lang.Object)
	 */
	public List findByPassword(Object password) {
		return findByProperty(PASSWORD, password);
	}

    /* (non-Javadoc)
	 * @see com.ssh.dao.impl.aa#merge(com.ssh.entity.Users)
	 */
    public Users merge(Users detachedInstance) {
        log.debug("merging Users instance");
        try {
            Users result = (Users) getHibernateTemplate()
                    .merge(detachedInstance);
            log.debug("merge successful");
            return result;
        } catch (RuntimeException re) {
            log.error("merge failed", re);
            throw re;
        }
    }

    /* (non-Javadoc)
	 * @see com.ssh.dao.impl.aa#attachDirty(com.ssh.entity.Users)
	 */
    public void attachDirty(Users instance) {
        log.debug("attaching dirty Users instance");
        try {
            getHibernateTemplate().saveOrUpdate(instance);
            log.debug("attach successful");
        } catch (RuntimeException re) {
            log.error("attach failed", re);
            throw re;
        }
    }

    /* (non-Javadoc)
	 * @see com.ssh.dao.impl.aa#attachClean(com.ssh.entity.Users)
	 */
    public void attachClean(Users instance) {
        log.debug("attaching clean Users instance");
        try {
            getHibernateTemplate().lock(instance, LockMode.NONE);
            log.debug("attach successful");
        } catch (RuntimeException re) {
            log.error("attach failed", re);
            throw re;
        }
    }

//	public static UserDAO getFromApplicationContext(ApplicationContext ctx) {
//    	return (UserDAO) ctx.getBean("UsersDAOImp");
//	}

}

loginForm

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.ssh.form;

import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;

/** 
 * MyEclipse Struts
 * Creation date: 11-20-2007
 * 
 * XDoclet definition:
 * @struts.form name="loginForm"
 */
public class LoginForm extends ActionForm {
	/*
	 * Generated fields
	 */

	/**
	 * 
	 */
	private static final long serialVersionUID = 2559544931121457135L;

	/** username property */
	private String username;

	/** userpwd property */
	private String password;

	/*
	 * Generated Methods
	 */

	/** 
	 * Method validate
	 * @param mapping
	 * @param request
	 * @return ActionErrors
	 */
	public ActionErrors validate(ActionMapping mapping,
			HttpServletRequest request) {
		// TODO Auto-generated method stub
		return null;
	}

	/** 
	 * Method reset
	 * @param mapping
	 * @param request
	 * 清空输入数据
	 */
	public void reset(ActionMapping mapping, HttpServletRequest request) {
		// TODO Auto-generated method stub
		username=null;
		password=null;
	}

	/** 
	 * Returns the username.
	 * @return String
	 */
	public String getUsername() {
		return username;
	}

	/** 
	 * Set the username.
	 * @param username The username to set
	 */
	public void setUsername(String username) {
		this.username = username;
	}

	public String getPassword() {
		return password;
	}

	public void setPassword(String password) {
		this.password = password;
	}

	/** 
	 * Returns the userpwd.
	 * @return String
	 */

}

LoginAction

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.ssh.action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import com.ssh.dao.impl.UsersDAOImp;
import com.ssh.entity.Users;
import com.ssh.form.LoginForm;

/** 
 * MyEclipse Struts
 * Creation date: 11-20-2007
 * 
 * XDoclet definition:
 * @struts.action path="/login" name="loginForm" input="login.jsp" scope="request" validate="true"
 */
public class LoginAction extends Action {
	/*
	 * action与daoImp类之间是依赖注入
	 * daoImp与SessionFactory类之间是依赖注入
	 */

	/** 
	 * Method execute
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	private UsersDAOImp dao;

	public UsersDAOImp getDao() {
		return dao;
	}

	public void setDao(UsersDAOImp dao) {
		this.dao = dao;
	}
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		LoginForm loginForm = (LoginForm) form;
		Users user=new Users();
		user.setUsername(loginForm.getUsername());
		user.setPassword(loginForm.getPassword());
		UsersDAOImp dao=this.getDao();
		System.out.println(loginForm.getUsername());
		if(dao.isValidUser(loginForm.getUsername(), loginForm.getPassword())){
			return mapping.findForward("right");
		}


		return mapping.findForward("wrong");

	}
}

暂时放这些吧

ssh学习1