简易的CRM系统案例之Struts2+Hibernate3+JSP+MySQL版本
作者：互联网
改造上一版本的DAO层
简易的CRM系统案例之Struts2+JSP+MySQL版本
src文件下hibernate.cfg.xml
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<!-- 通常，一个session-factory节点代表一个数据库 -->
<session-factory>
<!-- 1. 数据库连接配置 -->
<property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">jdbc:mysql:///infos</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password">root</property>
<!--
数据库方法配置， hibernate在运行的时候，会根据不同的方言生成符合当前数据库语法的sql
-->
<property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property>
<!-- 2. 其他相关配置 -->
<!-- 2.1 显示hibernate在运行时候执行的sql语句 -->
<property name="hibernate.show_sql">true</property>
<!-- 2.2 格式化sql -->
<property name="hibernate.format_sql">true</property>
<!-- 2.3 自动建表 -->
<property name="hibernate.hbm2ddl.auto">update</property>
<!-- 3. 加载所有映射 -->
<mapping resource="com/loaderman/crm/entity/Account.hbm.xml"/>
<mapping resource="com/loaderman/crm/entity/User.hbm.xml"/>
<mapping resource="com/loaderman/crm/entity/Policy.hbm.xml"/>
</session-factory>
</hibernate-configuration>
User.hbm.xml
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="com.loaderman.crm.entity">
<class name="User" table="t_user">
<!-- 主键 ，映射-->
<id name="id" column="id">
<generator class="native"/>
</id>
<!-- 非主键，映射 -->
<property name="name" column="name"></property>
<property name="sex" column="sex"></property>
<property name="age" column="age"></property>
<property name="telephone" column="telephone"></property>
<property name="idCard" column="idCard"></property>
<property name="address" column="address"></property>
<property name="weixin" column="weixin"></property>
<property name="qq" column="qq"></property>
<property name="email" column="email"></property>
<property name="job" column="job"></property>
<property name="area" column="area"></property>
<property name="grade" column="grade"></property>
<property name="remark" column="remark"></property>
</class>
</hibernate-mapping>
package com.loaderman.crm.dao.impl;
import com.loaderman.crm.dao.BaseDao;
import com.loaderman.crm.dao.UserDao;
import com.loaderman.crm.entity.User;
import com.loaderman.crm.util.HibernateUtils;
import org.hibernate.Criteria;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.criterion.Restrictions;
import java.util.List;
public class UserDaoimp extends BaseDao implements UserDao {
@Override
//获取所有客户信息
public List<User> getAllUser() {
Session session = null;
Transaction tx = null;
try {
session = HibernateUtils.getSession();
tx = session.beginTransaction();
Query q = session.createQuery(" from User");
return q.list();
} catch (Exception e) {
throw new RuntimeException(e);
} finally {
tx.commit();
session.close();
}
}
@Override
public User getUserMoreInfo(User user) {
Session session = null;
Transaction tx = null;
try {
session = HibernateUtils.getSession();
tx = session.beginTransaction();
return (User) session.get(User.class, user.getId());
} catch (Exception e) {
throw new RuntimeException(e);
} finally {
tx.commit();
session.close();
}
}
@Override
public List<User> getUserByName(String name) {
Session session = null;
Transaction tx = null;
try {
session = HibernateUtils.getSession();
tx = session.beginTransaction();
Query q = session.createQuery("from User where name=?");
// 注意：参数索引从0开始
q.setParameter(0, name);
// 执行查询
return q.list();
} catch (Exception e) {
throw new RuntimeException(e);
} finally {
tx.commit();
session.close();
}
}
@Override
//添加学生
public int addUser(User user) {
Session session = null;
Transaction tx = null;
try {
session = HibernateUtils.getSession();
tx = session.beginTransaction();
session.save(user);
return 1;
} catch (Exception e) {
throw new RuntimeException(e);
} finally {
tx.commit();
session.close();
}
}
@Override
//删除
public int delUser(User user) {
Session session = null;
Transaction tx = null;
try {
session = HibernateUtils.getSession();
tx = session.beginTransaction();
// 先根据id查询对象，再判断删除
Object obj = session.get(User.class, user.getId());
if (obj != null) {
session.delete(obj);
}
return 1;
} catch (Exception e) {
throw new RuntimeException(e);
} finally {
tx.commit();
session.close();
}
}
@Override
public int modifyUser(User user) {
Session session = null;
Transaction tx = null;
try {
session = HibernateUtils.getSession();
tx = session.beginTransaction();
session.update(user);
return 1;
} catch (Exception e) {
throw new RuntimeException(e);
} finally {
tx.commit();
session.close();
}
}
//查找指定的客户存在不存在
public boolean findUser(User user) {
Session session = HibernateUtils.getSession();
Transaction tx = session.beginTransaction();
Criteria criteria = session.createCriteria(User.class);
// 构建条件
criteria.add(Restrictions.eq("name", user.getName()));
criteria.add(Restrictions.eq("telephone", user.getTelephone()));
List list = criteria.list();
System.out.println("查询用户"+list.size());
tx.commit();
session.close();
if (list.size()>0){
return true;
}else {
System.out.println("没有查询到");
return false;
}
}
}
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标签：tx,Hibernate3,Struts2,session,JSP,User,import,null,user 来源： https://www.cnblogs.com/loaderman/p/10303419.html