hibernate使用JUnit进行测试

学习hibernate时要做大量的测试，一个比较好的解决方法是使用JUnit，本例延续之前的使用hibernate注解

1.实体类Teacher

package com.baosight.model;

import javax.persistence.Entity;
import javax.persistence.Id;

/**
 * <p>Title: </p>
 * <p>Description:Teacher </p>
 * <p>Company: </p> 
 * @author yuan 
 * @date 2016-4-10 下午12:32:46*/
@Entity
public class Teacher {
	private int id;
	private String name;
	private String title;
	@Id
	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 String getTitle() {
		return title;
	}
	public void setTitle(String title) {
		this.title = title;
	}
	
}

2.hibernate的配置文件hibernate.cfg.xml

<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>

    <session-factory>

        <!-- Database connection settings -->
        <property name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
        <property name="connection.url">jdbc:oracle:thin:@127.0.0.1:1521:orcl</property>
        <property name="connection.username">scott</property>
        <property name="connection.password">tiger</property>

        <!-- JDBC connection pool (use the built-in) -->
        <!-- <property name="connection.pool_size">1</property> -->

        <!-- SQL dialect -->
        <property name="dialect">org.hibernate.dialect.Oracle9Dialect</property>

        <!-- Enable Hibernate's automatic session context management -->
       <!--  <property name="current_session_context_class">thread</property> -->

        <!-- Disable the second-level cache  -->
        <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>

        <!-- Echo all executed SQL to stdout -->
        <property name="show_sql">true</property>

        <!-- Drop and re-create the database schema on startup -->
        <property name="hbm2ddl.auto">create</property>

        <mapping resource="com/baosight/model/Student.hbm.xml"/>
		<mapping class="com.baosight.model.Teacher"/>
    </session-factory>

</hibernate-configuration>

3.新建JUnit Test Case对hibernate的save方法进行测试，类名为TeacherTest，在根目录新建源文件夹，使用与Teacher所在包名作为TeacherTest的包名

package com.baosight.model;

import static org.junit.Assert.*;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;
import org.hibernate.cfg.Configuration;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;

/**
 * <p>Title:TecherTest </p>
 * <p>Description:TODO </p>
 * <p>Company: </p> 
 * @author yuan 
 * @date 2016-4-13 下午10:32:17*/
public class TeacherTest {
	private static SessionFactory sf = null;
	@BeforeClass
	public static void beforeClass(){
		// 读取配置文件
		Configuration cfg = new AnnotationConfiguration();
		// 得到session工厂
		sf = cfg.configure().buildSessionFactory();
	}
	@Test
	public void test() {
		// 教师测试类
		Teacher t = new Teacher();
		t.setId(1);
		t.setName("t1");
		t.setTitle("中级");

		// 得到session
		Session session = sf.openSession();
		// 开启事务
		session.beginTransaction();
		// session执行save
		session.save(t);
		// 事务提交
		session.getTransaction().commit();
		// 关闭session
		session.close();
	}
	@AfterClass
	public static void afterClass(){
		// 关闭session工厂
		sf.close();
	}
}

4.在类名或方法名或空白处点击右键-->Run As-->JUnit Test，运行效果如下：

其中，使用到了@BeforeClass和@AfterClass对读取hibernate配置文件进行了预处理，可以使该方法在测试多个方法时只执行一次，提高了执行效率。

以上即为使用JUnit对hibernate进行测试的内容，不过应该还可以使用Assert的方法吧，待以后探究吧