SPring+Hbernate基础整合

最新推荐文章于 2020-01-08 15:10:19 发布

鹏程万li

最新推荐文章于 2020-01-08 15:10:19 发布

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分类专栏： SSH/SIS 文章标签： spring hibernate integer string class interface

本文链接：https://blog.youkuaiyun.com/pengchengmm/article/details/7615862

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本文详细介绍了使用JavaProject创建Spring与Hibernate整合的实例，通过配置Spring核心文件来管理数据源、SessionFactory和事务，实现简单而高效的数据操作。具体包括Spring配置、实体类的Hibernate注解、基础Sessionfactory的创建、DAO层逻辑接口与实现、服务层接口与实现，以及最终的测试类验证。

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此案例使用Java Project创建，实现简单的Spring与Hibernate整合，理清思路很简单，主要是有Service层调用DAO层的方法，Spring核心配置文件中配置：数据源、Hibernate使用的Sessionfactory、和使用Hibernate必须使用的事务配置。

Spring配置文件

applicationContext.xml

<context:component-scan base-package="com.sh." />

<bean id="myDataSource"
  class="org.springframework.jdbc.datasource.DriverManagerDataSource">
  <property name="driverClassName" value="com.mysql.jdbc.Driver" />
  <property name="url"
   value="jdbc:mysql://localhost:3306/lease?useUnicode=true&characterEncoding=UTF-8" />
  <property name="username" value="root" />
  <property name="password" value="Sun_1024" />
</bean>

<bean id="sessionFactory"
  class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
  <property name="dataSource" ref="myDataSource" />
  <property name="packagesToScan" value="com.sh.model.entity" />
</bean>

<bean id="txManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>

<tx:annotation-driven transaction-manager="txManager"
proxy-target-class="true" />

</beans>

实体类使用的Hibernate注解

package com.sh.model.entity;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name="userinfo")
public class UserInfo {

private Integer userId;
private String userName;
private String userPwd;
private Integer userType;
private String remarks;

@Id
@GeneratedValue
public Integer getUserId() {
return userId;
}

public void setUserId(Integer userId) {
this.userId = userId;
}

public String getUserName() {
return userName;
}

public void setUserName(String userName) {
this.userName = userName;
}

public String getUserPwd() {
return userPwd;
}

public void setUserPwd(String userPwd) {
this.userPwd = userPwd;
}

public Integer getUserType() {
return userType;
}

public void setUserType(Integer userType) {
this.userType = userType;
}

public String getRemarks() {
return remarks;
}

public void setRemarks(String remarks) {
this.remarks = remarks;
}

}

创建基础的Sessionfactory共其它类调用

package com.sh.dao;

import javax.annotation.Resource;

import org.hibernate.Session;
import org.hibernate.SessionFactory;

public class BaseSessionFactory {

@Resource
private SessionFactory sessionFactory;

public SessionFactory getSessionFactory(){
  return sessionFactory;
}

public Session getSession(){
  return sessionFactory.getCurrentSession();
}

}

UserDao业务层逻辑接口

package com.sh.dao;

import java.util.List;

import com.sh.model.entity.UserInfo;

public interface UserDao {

public List<UserInfo> userList();
}

UserDaoImpl实现UserDao接口

package com.sh.dao.impl;

import java.util.List;

import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;

import com.sh.dao.BaseSessionFactory;
import com.sh.dao.UserDao;
import com.sh.model.entity.UserInfo;

@Repository
@Transactional
public class UserDaoImpl extends BaseSessionFactory implements UserDao {

@Override
public List<UserInfo> userList() {
  String hql = "FROM UserInfo";
  List<UserInfo> userList = getSession().createQuery(hql).list();
  System.out.println(userList.size());
  return userList;
}

}

服务层的接口UserService

package com.sh.service;

import java.util.List;

import com.sh.model.entity.UserInfo;

public interface UserService {
public List<UserInfo> listUser();

}

实现UserService接口

package com.sh.service.impl;

import java.util.List;

import javax.annotation.Resource;

import org.springframework.stereotype.Service;

import com.sh.dao.UserDao;
import com.sh.model.entity.UserInfo;
import com.sh.service.UserService;

@Service
public class UserServiceImpl implements UserService{

@Resource
private UserDao userDao;

@Override
public List<UserInfo> listUser() {
  List< UserInfo> list = userDao.userList();
  if(list.size()>0){
   return list;
  }
  return null;
}

}

测试类的创建

package test;

import java.util.List;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.sh.model.entity.UserInfo;
import com.sh.service.impl.UserServiceImpl;

public class Test {

public static void main(String[] args) {
  String path="applicationContext.xml";
  ApplicationContext context = new ClassPathXmlApplicationContext(path);
  UserServiceImpl us = (UserServiceImpl)context.getBean("userServiceImpl");

  List<UserInfo> userlist = us.listUser();
  System.out.println(userlist.size());

}