Hibernate4与Spring4整合，使用Junit4测试相关学习笔记

一、在myeclipse中创建web project

1.导入Hibernate4.1与Spring4.1的Libraries。其中myeclipse自带的spring libraries中缺少spring-test.jar包，需要自己从网上下载。mysql与c3p0数据库连接池支持下载一下。

2.导入Junit4的jar包，myeclipse中自带的，使用Junit4测试hibernate4与spring4整合，必须使用4.4往后的版本，切记。我是myeclipse直接导入，myeclipse2017 c1版本中自带的。

二，添加Hibernate配置文件（hibernate.cfg.xml）

各配置文件位置：

hibernate.cfg.xml配置文件:

    
    	  
      	  
     	  
     	 
    	org.hibernate.dialect.MySQL5InnoDBDialect
    	true
    	true
    	update
    

1.创建测试使用的持久化类以及生成Hibernate映射文件

持久化类：

package com.test.entity;

public class People {
	private int id;
	private String name;
	private int pid;
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getPid() {
		return pid;
	}
	public void setPid(int pid) {
		this.pid = pid;
	}
	
}

hibernate映射文件：

三、加入Spring配置文件

applicationContext.xml 配置内容：

	xmlns:aop="http://www.springframework.org/schema/aop"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
	http://www.springframework.org/schema/beans/spring-beans-4.1.xsd 
	http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.1.xsd
	http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
	http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd"
	xmlns:tx="http://www.springframework.org/schema/tx">
	
	
	
	
	
	
		
		
		
		
		
		
	
	
	 
	
		  
		
		 
		
		 
		 
	
	
	
	
		
	
	
	
	  
       		  
          		  
          		  
          		  
       		  
    	
    
    	  
     	 	  
     	 	  
    	 
	
	
	
	

依赖的数据库配置文件db.properties:

jdbc.user=root
jdbc.password=root
jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.jdbcUrl=jdbc:mysql://localhost:3306/hibernate
jdbc.initPoolSize=5
jdbc.maxPoolSize=10

四、整合测试

工程目录：

新建上述各目录：

在dao包中创建接口

package com.test.dao;

import java.util.List;
import com.test.entity.People;

public interface PeopleDao {
	public People findByID(int id);
	public List findAll();
	public List findByPage(int page);
	public void add(People people);
	public void update(People people);
	public void delete(People people);
}

对应的在impl下完成上述接口的实现类（注解@Repository，用来标注持久层，同时表示此组件交给spring的IOC容器管理）

package com.test.daoimpl;

import java.util.List;

import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;

import com.test.dao.PeopleDao;
import com.test.entity.People;

@Repository
public class PeopleDaoImpl implements PeopleDao{
	@Autowired
	private SessionFactory sessionFactory;
	@Override
	public People findByID(int id) {
		Session session = sessionFactory.getCurrentSession();
		People people = (People) session.get(People.class, id);//此处使用load方法时用Junit4测试就会报错
		return people;
	}

	@Override
	public List findAll() {
		Session session = sessionFactory.getCurrentSession();
		String hqlString = "from People";
		Query query = session.createQuery(hqlString);
		List lists = query.list();
		return lists;
	}

	@Override
	public List findByPage(int page) {
		Session session = sessionFactory.getCurrentSession();
		String hqlString = "from People";
		Query query = session.createQuery(hqlString);
		query.setFirstResult((page-1)*5);
		query.setMaxResults(5);
		List lists = query.list();
		return lists;
	}

	@Override
	public void add(People people) {
		Session session = sessionFactory.getCurrentSession();
		session.save(people);
	}

	@Override
	public void update(People people) {
		Session session = sessionFactory.getCurrentSession();
		session.update(people);
	}

	@Override
	public void delete(People people) {
		Session session = sessionFactory.getCurrentSession();
		session.delete(people);
	}

}

在service包下创建接口：

package com.test.service;

import java.util.List;
import com.test.entity.People;

public interface PeopleService {
	public People findByID(int id);
	public List findAll();
	public List findByPage(int page);
	public void add(People people);
	public void update(People people);
	public void delete(People people);
}

在serviceimpl包下创建实现类：

package com.test.serviceimpl;

import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import com.test.dao.PeopleDao;
import com.test.entity.People;
import com.test.service.PeopleService;

public class PeopleServiceImpl implements PeopleService{
	@Autowired
	private PeopleDao peopleDao;
	@Override
	public People findByID(int id) {
		People people = peopleDao.findByID(id);
		return people;
	}

	@Override
	public List findAll() {
		List lists = peopleDao.findAll();
		return lists;
	}

	@Override
	public List findByPage(int page) {
		List lists = peopleDao.findByPage(page);
		return lists;
	}

	@Override
	public void add(People people) {
		peopleDao.add(people);
	}

	@Override
	public void update(People people) {
		peopleDao.update(people);
	}

	@Override
	public void delete(People people) {
		peopleDao.delete(people);
	}

}

填写测试类：

package com.test.test;

import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import com.test.entity.People;
import com.test.service.PeopleService;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:applicationContext.xml")
public class Test {
	@Autowired
	private PeopleService peopleService;//采用注解使用peopleService时，applicationContext.xml配置文件中记得写出对应的bean
	@org.junit.Test
	public void peopleTest(){
//		People people = new People();
//		people.setName("杨八蛋");
//		people.setPid(0);
//		peopleService.add(people);
//		List lists = peopleService.findByPage(1);
//		for (People people : lists) {
//			System.out.println(people.getId()+"-"+people.getName()+"-"+people.getPid());
//		}
		int id = 1;
		People people = peopleService.findByID(id);
		System.out.println(people);
	}
}

测试即可~