package com.kevin.dao;
import com.kevin.entity.User;
import java.util.List;
/**
* Created by kinthon on 17-6-23.
*/
public interface UserDao {
/**
* 添加并保存用户
* @param user
*/
public void add(User user);
/**
* 进行登录
*/
public boolean login(User user);
/**
* 获取用户列表
*/
public List getUser();
/**
* 根据用户Id获取用户信息
* @param id
* @return
*/
public User getUser(int id);
/**
* 更新用户信息
* @param user
*/
public void update(User user);
/**
* 根据用户id删除用户信息
* @param id
*/
public void delete(int id);
}
UserDaoImpl.java 内容
package com.kevin.dao.impl;
import com.kevin.dao.UserDao;
import com.kevin.entity.User;
import org.hibernate.Query;
import org.hibernate.SessionFactory;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;
import javax.annotation.Resource;
import java.util.Iterator;
import java.util.List;
/**
* Created by kinthon on 17-6-23.
*/
@Transactional(rollbackFor = Exception.class)
//出现Exception异常回滚
@Repository("userDao") //进行注入
public class UserDaoImpl implements UserDao {
@Resource(name="sessionFactory")
private SessionFactory sessionFactory;
@Override
public void add(User user) {
sessionFactory.getCurrentSession().save(user);
}
@Override
public boolean login(User user) {
Iterator it;
String hsql="FROM User u where u.username=? and u.password=?";
System.out.println(hsql);
Query query = sessionFactory.getCurrentSession().createQuery(hsql);
query.setString(0, user.getUsername());
query.setString(1, user.getPassword());
System.out.println(user.getUsername());
it=query.iterate();
if(it.hasNext()) {
System.out.println("true");
return true;
} else {
System.out.println("false");
return false;
}
}
@Override
public List getUser() {
return sessionFactory.getCurrentSession().createQuery("FROM User").list();
}
@Override
public User getUser(int id) {
return (User)sessionFactory.getCurrentSession().get(User.class, id);
}
@Override
public void update(User user) {
sessionFactory.getCurrentSession().update(user);
}
@Override
public void delete(int id) {
sessionFactory.getCurrentSession().delete(
sessionFactory.getCurrentSession().get(User.class, id)
);
}
}
package com.kevin.service;
import com.kevin.entity.User;
import java.util.List;
/**
* Created by kinthon on 17-6-23.
*/
public interface UserService {
public boolean addUser(User user);
public boolean login(User user);
public List getAllUser();
public User getUserById(int id);
public boolean updateUser(User user);
public boolean deleteUser(int id);
}
UserServiceImpl.java 内容
package com.kevin.service.impl;
import com.kevin.dao.UserDao;
import com.kevin.entity.User;
import com.kevin.service.UserService;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
import java.util.List;
/**
* Created by kinthon on 17-6-23.
*/
//注入服务
@Service("userService")
public class UserServiceImpl implements UserService{
//自动注入userDao，也可以使用@Autowired
@Resource
private UserDao userDao;
@Override
public boolean addUser(User user) {
this.userDao.add(user);
return true;
}
@Override
public boolean login(User user) {
return this.userDao.login(user);
}
@Override
public List getAllUser() {
return this.userDao.getUser();
}
@Override
public User getUserById(int id) {
return this.userDao.getUser(id);
}
@Override
public boolean updateUser(User user) {
this.userDao.update(user);
return true;
}
@Override
public boolean deleteUser(int id) {
this.userDao.delete(id);
return true;
}
}
<%--
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User: kinthon
Date: 17-6-23
Time: 下午8:15
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--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
Title
success.jsp
<%--
Created by IntelliJ IDEA.
User: kinthon
Date: 17-6-25
Time: 下午1:32
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--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
success
hello ${user.username}
error.jsp
<%--
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User: kinthon
Date: 17-6-25
Time: 下午1:32
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
Title
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