spring 测试框架

以前单纯用junit做spring的测试程序，在测dao的时候总是得手动的添加或删除记录，破坏了数据库现场，用spring的测试框架可以在测试用例执行完后回滚。

使用spring框架测试   

引入spring测试的jar包(这里我用的是spring 3.0.3)
  org.springframework.test-3.0.3.RELEASE.jar 
  cglib-2.2.2.jar  
实体类

package com.jysd.bean;

import java.util.Date;
	
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Table;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;

import com.jysd.web.bean.ArticleActionParamBean;
@Entity
@Table(name="t_article")
public class Article {
     //主键
	 private long id;
	 //板块
	 private Catagory catagory; 
	 //主题
	 private String topic;
	 //文章内容
	 private String content;
	 //发布日期
	 private Date publis_date;
	 //文章作者
	 private User u;
	 /**
	  * 默认构造函数
	  */
	 public Article(){
		 
	 }
	 
	 /**
	  * 
	  * @param articleParambean 页面参数对象    
	  */
	 public Article(ArticleActionParamBean articleParambean){
	        Catagory catagory = new Catagory();
	        catagory.setId(Long.parseLong(articleParambean.getCatagory_id()));
	        this.catagory = catagory;
	        this.content = articleParambean.getContent();
	        this.topic = articleParambean.getTopic();
	        User u = new User();
	        u.setId(Long.parseLong(articleParambean.getUser_id()));
	        this.u = u;
	        Date d = new Date();
	        this.publis_date = d;
	 }
	 
	 
	 @Id
	 @GeneratedValue
	 public long getId() {
		return id;
	 }
	public void setId(long id) {
		this.id = id;
	}
	
	@ManyToOne(fetch=FetchType.EAGER)
	@JoinColumn(name="catagory_id")
	
	public Catagory getCatagory() {
		return catagory;
	}
	public void setCatagory(Catagory catagory) {
		this.catagory = catagory;
	}
	public String getTopic() {
		return topic;
	}
	public void setTopic(String topic) {
		this.topic = topic;
	}
	public String getContent() {
		return content;
	}
	public void setContent(String content) {
		this.content = content;
	}
	@Column(name="publish_date")
	@Temporal(TemporalType.TIMESTAMP)
	public Date getPublis_date() {
		return publis_date;
	}
	public void setPublis_date(Date publisDate) {
		publis_date = publisDate;
	}
 
	@ManyToOne(fetch=FetchType.EAGER)
	@JoinColumn(name="userid")
	public User getU() {
		return u;
	}

	public void setU(User u) {
		this.u = u;
	}

}

dao实现类

package com.jysd.dao.impl;

import java.io.Serializable;
import java.util.LinkedHashMap;
import java.util.List;

import javax.persistence.Query;


import org.springframework.stereotype.Repository;

import com.jysd.bean.Article;
import com.jysd.dao.ArticleDao;
import com.jysd.exception.DataBaseException;

import com.jysd.ms.web.QueryResult;

@Repository 
public class ArticleDaoImpl extends BaseDaoImpl<Article> implements ArticleDao  {

	/**
	 * 功能：列出最近发表的文章
	 */
	public List<Article> listArticle(int displayCount,long catagory_id)throws DataBaseException {
		// TODO Auto-generated method stub
		
		/*LinkedHashMap<String,String> orderBy = new LinkedHashMap<String,String>();
		orderBy.put("publis_date","desc");
		QueryResult<Article> queryResult = this.getScrollData(0,displayCount,"where", queryParams, orderby)
		return queryResult.getResultlist();*/
		
		String hql = "select article from com.jysd.bean.Article as article where article.catagory.id=:id";
		Query query = em.createQuery(hql).setFirstResult(0).setMaxResults(displayCount).setParameter("id",catagory_id);
		return query.getResultList();  
	 }
    
	/**
	 * 功能：向数据库存储文
	 */
	
	public void saveArticle(Article article) throws DataBaseException {
		
		em.persist(article);
	}

测试类  

package com.jysd.dao.impl;

import java.util.List;

import javax.annotation.Resource;

import junit.framework.Assert;


import org.junit.Ignore;
import org.junit.Test;
import org.junit.runner.RunWith;

import org.springframework.test.context.ContextConfiguration;

import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.transaction.annotation.Transactional;

import com.jysd.bean.Article;
import com.jysd.bean.Catagory;
import com.jysd.bean.User;
import com.jysd.dao.ArticleDao;

import com.jysd.exception.DataBaseException;

@RunWith(SpringJUnit4ClassRunner.class)
//加载spring配置文件
@ContextConfiguration(locations={"classpath:bean.xml"})


public class ArticleDaoImplTest  {
    
	@Resource(name="articleDaoImpl")
	private  ArticleDao articleDao;
	
    
	@Transactional //这个测试用例在一个事物中执行,执行完回回滚不会破坏数据库
	
	public void testPostArticle() throws DataBaseException{
		
		Article article = new Article();
		article.setTopic("数据回滚");
		article.setContent("学习spring测试");
		User u = new User();
		u.setId(1l);
		article.setU(u);
		Catagory cata = new Catagory();
		cata.setId(1l);
		article.setCatagory(cata);
		articleDao.saveArticle(article);
	}
	
	
}

  

bean.xml 如下

   <beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:tx="http://www.springframework.org/schema/tx" 
	xmlns:aop="http://www.springframework.org/schema/aop"
	xsi:schemaLocation="  
             http://www.springframework.org/schema/beans 
             http://www.springframework.org/schema/beans/spring-beans-3.0.xsd 
             http://www.springframework.org/schema/context
        	 http://www.springframework.org/schema/context/spring-context-3.0.xsd
             http://www.springframework.org/schema/aop 
             http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
             http://www.springframework.org/schema/tx 
             http://www.springframework.org/schema/tx/spring-tx-3.0.xsd" >
 <aop:aspectj-autoproxy/>
	<context:component-scan base-package="com"/>		
   <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalEntityManagerFactoryBean">
 		<property name="persistenceUnitName" value="bjjysd"/>
   </bean>
   <bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
        <property name="entityManagerFactory" ref="entityManagerFactory"/>
   </bean>  
   <tx:annotation-driven transaction-manager="transactionManager"/>
</beans>
 

在运行这个测试用例，数据就不会保存在数据库中了，当然这只是spring测试框架的一部分，希望对你学习有所帮助。