> 本章介绍 JUnit4 在实际项目中的使用，实例说明如何使用 JUnit4 测试 Spring 和 Hibernate 的整合
1. Spring 与 Hibernate 的整合测试
```
package com.dodoke.entity;
import javax.persistence.*;
@Entity
@Table(name = "T_USER")
public class User {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
private String name;
private String password;
public User() {}
public User(String name, String password) {
this.name = name;
this.password = password;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
@Override
public String toString() {
return "User{" +
"id=" + id +
", name='" + name + '\'' +
", password='" + password + '\'' +
'}';
}
}
```
```
<?xml version="1.0" encoding="UTF-8"?>
<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"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<bean id="tom" class="com.dodoke.entity.User">
<property name="name" value="tom"/>
<property name="password" value="123456"/>
</bean>
<context:annotation-config/>
<context:component-scan base-package="com.dodoke"/>
<context:property-placeholder location="classpath:db.properties"/>
<!-- 配置数据源 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${mysql.driverClass}"/>
<property name="jdbcUrl" value="${mysql.jdbcUrl}"/>
<property name="user" value="${mysql.user}"/>
<property name="password" value="${mysql.password}"/>
<property name="initialPoolSize" value="${jdbc.initPoolSize}"/>
<property name="maxPoolSize" value="${jdbc.maxPoolSize}"/>
</bean>
<!-- 配置sessionFactory -->
<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<property name="packagesToScan">
<list>
<value>com.dodoke.entity</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="dialect">org.hibernate.dialect.MySQL5Dialect</prop>
<prop key="show_sql">true</prop>
<prop key="format_sql">true</prop>
<prop key="hbm2ddl.auto">update</prop>
</props>
</property>
</bean>
<!-- 配置txManager-->
<bean id="txManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"></property>
</bean>
<tx:annotation-driven transaction-manager="txManager"/>
</beans>
```
```
package com.dodoke;
import com.dodoke.entity.User;
import org.hibernate.SessionFactory;
import org.junit.BeforeClass;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class SpringTest {
private static ApplicationContext applicationContext;
@BeforeClass
public static void setUpBeforeClass() throws Exception {
applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
}
@Test
public void testUser() {
User tom = (User) applicationContext.getBean("tom");
System.out.println(tom);
}
@Test
public void testSessionFactory() {
SessionFactory factory = (SessionFactory) applicationContext.getBean("sessionFactory");
System.out.println(factory);
}
}
```
```
User{id=null, name='tom', password='123456'}
org.hibernate.internal.SessionFactoryImpl@e72dba7
```
